dp-1x chassis - Star TV and Appliance Repair Services

Transcription

MARCH 2006
Training Materials Prepared by: ALVIE RODGERS C.E.T.
2001
MODEL RELEASE
DIGITAL
HD READY PTV
CONTENTS...
Chassis
DP-14G
Model #
Aspect
43UWX10B 16X9
53UWX10B
61UWX10B
DP-15
53UDX10B
61UDX10B
4X3
DP-15E
43FDX10B
43FDX11B
4X3
DP-17
53SWX10B 16X9
61SWX10B
53SWX12B Regional
61SWX12B Regional
Anti-Glare
Ultra Shield Included
2002 DP-1X Chassis Projection Television Information
INSTRUCTOR… Alvie Rodgers C.E.T. (Chamblee, GA.)
THIS PAGE INTENTIONALLY LEFT BLANK
MARCH 2006
DP-1X CHASSIS
Table of Contents Page 1 of 3
SECTION (1) MICROPROCESSOR INFORMATION:
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Microprocessor DATA COMMUNICATION Explanation ------------------------------------Microprocessor with SRS DATA COMMUNICATION Circuit Diagram -------------------Microprocessor with DSP DATA COMMUNICATION Circuit Diagram -------------------DAC 1 and DAC 3 (I006 & I007) Pin Function Explanation ----------------------------------On Screen Display OSD Signal Path Explanation ------------------------------------------------On Screen Display OSD Signal Path Circuit Diagram --------------------------------------------Audio and Video MUTE Explanation --------------------------------------------------------------Audio and Video MUTE SRS Circuit Diagram ---------------------------------------------------Audio and Video MUTE DSP Circuit Diagram ---------------------------------------------------SRS PWB MUTE Circuit Diagram -----------------------------------------------------------------DP-17 SURROUND PWB MUTE Circuit Diagram --------------------------------------------MEMORY INITIALIZATION Explanation -----------------------------------------------------FACTORY RESET CONDITIONS (Shipping Condition) ------------------------------------EEPROM I2C Average Data Values ----------------------------------------------------------------
01-01
01-05
01-06
01-07
01-08
01-10
01-11
01-13
01-14
01-15
01-16
01-17
01-18
01-20
SECTION (2) POWER SUPPLY DIAGRAMS:
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POWER ON/OFF Explanation ---------------------------------------------------------------------POWER ON/OFF DP-14G and DP-17 Circuit Diagram ---------------------------------------POWER ON/OFF DP-15 Circuit Diagram --------------------------------------------------------Sub Power Supply Distribution and Protection Block Diagram --------------------------------Low Voltage Power Supply SHUT DOWN Explanation ----------------------------------------Low Voltage Power Supply SHUT DOWN Diagram --------------------------------------------Green LED Used in Low Voltage Power Supply for Visual Trouble Shooting Explanation
Green LED Used in Low Voltage Power Supply for Visual Trouble Shooting ---------------DP-17 Green LEDs Used in Low Voltage Power Supply Explanation ------------------------DP-17 Green LEDs Used in Low Voltage Power Supply for Visual Trouble Shooting -----Deflection Power Supply Distribution and Protection Block Diagram ------------------------High Voltage Power Supply SHUT DOWN Explanation ---------------------------------------High Voltage Power Supply SHUT DOWN Diagram -------------------------------------------High Voltage Green and Red LED Used for Visual Trouble Shooting Explanation ---------High Voltage Green and Red LED Used for Visual Trouble Shooting -------------------------
02-01
02-04
02-05
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02-10
02-11
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02-14
02-15
02-16
02-21
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02-24
SECTION (3) DEFLECTION CIRCUIT:
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DEFLECTION BLOCK DIAGRAM Circuit Description -------------------------------------DEFLECTION BLOCK DIAGRAM Circuit ---------------------------------------------------HORIZONTAL DRIVE Circuit Description (Updated 04-2006) ------------------------------HORIZONTAL DRIVE Circuit Diagram --------------------------------------------------------HORIZONTAL DRIVE IC Voltages and Waveform Information --------------------------Horizontal and Vertical SWEEP LOSS Detection Circuit Description -----------------------Horizontal and Vertical SWEEP LOSS Detection Circuit --------------------------------------Vertical SQUEEZE Display Diagrams -------------------------------------------------------------Vertical SQUEEZE Circuit Diagram ---------------------------------------------------------------VERTICAL OUTPUT with V. SQUEEZE Circuit ---------------------------------------------DP-17 VERTICAL OUTPUT without V. SQUEEZE Circuit --------------------------------SIDE PIN CUSHION Circuit Diagram -------------------------------------------------------------
03-01
03-04
03-05
03-07
03-08
03-09
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03-11
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03-13
03-14
03-15
Continued on Next Page
MARCH 2006
DP-1X CHASSIS
Continued from Previous Page
SECTION (4) DIGITAL CONVERGENCE CIRCUIT INFORMATION:
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DIGITAL CONVERGENCE Interface Circuit Description ------------------------------------DIGITAL CONVERGENCE Interface Circuit Diagram ---------------------------------------REMOTE CONTROL CLU-5711 in DIGITAL CONVERGENCE MODE ----------------REMOTE CONTROL CLU-5712 in DIGITAL CONVERGENCE MODE ----------------REMOTE CONTROL CLU-4311 in DIGITAL CONVERGENCE MODE ----------------OVERLAY DIMENSIONS for 43” (4X3 Aspect) Models -------------------------------------OVERLAY DIMENSIONS for 53” (4X3 Aspect) Model --------------------------------------OVERLAY DIMENSIONS for 61” (4X3 Aspect) Model --------------------------------------OVERLAY DIMENSIONS for 43” & 53” (16X9 Aspect) Model -----------------------------OVERLAY DIMENSIONS for 61” (16X9 Aspect) Model -------------------------------------OVERLAY Part Numbers ----------------------------------------------------------------------------
04-01
04-05
04-06
04-07
04-08
04-09
04-10
04-11
04-12
04-13
04-14
SECTION (5) VIDEO CIRCUIT INFORMATION:
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VIDEO Signal NTSC Circuit Diagram (1 of 2) -------------------------------------------------VIDEO Signal NTSC, COMPONENT, and OSD Circuit Diagram (2 of 2) ---------------IC-01 Pin 17, 24 and 52 Signal Description -----------------------------------------------------Auto Brightness Limiter ABL Description -----------------------------------------------------Auto Brightness Limiter ABL Circuit ------------------------------------------------------------NTSC SYNC Circuit Diagram ---------------------------------------------------------------------COMPONENT SYNC SEPARATION Circuit Diagram --------------------------------------
05-01
05-02
05-03
05-04
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05-07
SECTION (6) ADJUSTMENT INFORMATION:
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ADJUSTMENT ORDER ---------------------------------------------------------------------------PRE HEAT RUN -------------------------------------------------------------------------------------CUT OFF ADJUSTMENT -------------------------------------------------------------------------PRE-FOCUS ADJUSTMENT ---------------------------------------------------------------------DCU CROSS HATCH PHASE SETTING ------------------------------------------------------HORIZONTAL POSITION (COARSE) ADJUSTMENT -----------------------------------RASTER TILT ADJUSTMENT ------------------------------------------------------------------BEAM ALIGNMENT ADJUSTMENT ----------------------------------------------------------RASTER POSITION [Off-Set for Red and Blue] ADJUSTMENT ------------------------VERTICAL SIZE ADJUSTMENT ---------------------------------------------------------------HORIZONTAL SIZE ADJUSTMENT ----------------------------------------------------------BEAM FORM ADJUSTMENT -------------------------------------------------------------------LENS FOCUS ADJUSTMENT --------------------------------------------------------------------STATIC FOCUS ADJUSTMENT ----------------------------------------------------------------BLUE DE-FOCUS ADJUSTMENT --------------------------------------------------------------WHITE BALANCE and SUB BRIGHTNESS ADJUSTMENT ----------------------------HORIZONTAL POSITION (FINE) ADJUSTMENT -----------------------------------------HD FOCUS CHARACTER SET UP ADJUSTMENT ----------------------------------------HD FOCUS PATTERN SET UP ADJUSTMENT ----------------------------------------------
06-01
06-02
06-03
06-04
06-05
06-06
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06-11
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MARCH 2006
DP-1X CHASSIS
Continued from Previous Page
SECTION (6) ADJUSTMENT INFORMATION (Continued):
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DIGITAL CONVERGENCE ALIGNMENT PROCEDURE -------------------------------STORING DIGITAL CONVERGENCE DATA ----------------------------------------------INITIALIZING HD FOCUS SENSORS --------------------------------------------------------CONVERGENCE TOUCH UP --------------------------------------------------------------------REMOTE CONTROL CLU-5711 in DIGITAL CONVERGENCE MODE ----------------REMOTE CONTROL CLU-5712 in DIGITAL CONVERGENCE MODE ----------------REMOTE CONTROL CLU-4311 in DIGITAL CONVERGENCE MODE ----------------MAGNET LOCATIONS ---------------------------------------------------------------------------SUB PICTURE (PIP) AMPLITUDE ADJUSTMENT ----------------------------------------ERROR CODES for DCU HD FOCUS Description --------------------------------------------
06-20
06-28
06-29
06-30
06-31
06-32
06-33
06-34
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06-36
SECTION (7) AUDIO CIRCUIT INFORMATION:
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AUDIO SIGNAL (Main & Terminal) Circuit Diagram --------------------------------------AUDIO SRS Circuit Diagram ---------------------------------------------------------------------DP-17 AUDIO SIGNAL (Main & Terminal) Circuit Diagram -----------------------------DP-17 AUDIO SURROUND Circuit Diagram --------------------------------------------------
07-01
07-02
07-03
07-04
SECTION (8) MISCELLANEOUS INFORMATION:
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DP-1X (Not DP-17) REAR PANEL ---------------------------------------------------------------DP-17 REAR PANEL --------------------------------------------------------------------------------DEFLECTION / POWER PWB -------------------------------------------------------------------SUB POWER SUPPLY PWB ----------------------------------------------------------------------SIGNAL PWB -----------------------------------------------------------------------------------------CRT PWB ----------------------------------------------------------------------------------------------CONVERGENCE PWB ----------------------------------------------------------------------------TERMINAL PWB ------------------------------------------------------------------------------------SRS (SURROUND) PWB ---------------------------------------------------------------------------CHASSIS TOTAL ------------------------------------------------------------------------------------DC VOLTAGES --------------------------------------------------------------------------------------OVERLAY PART NUMBERS ---------------------------------------------------------------------
08-01
08-02
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08-20
SECTION (9) SERVICE BULLETINS AND INFORMATION:
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PTV 01-01 Clarification of Memory Initialization Procedure -----------------------------------PTV 01-02 Horizontal Noise Present when Cold (Anode Cup Arc) ---------------------------PTV 01-04 Excessive Noise in PinP ----------------------------------------------------------------PTV 01-05 Digital Convergence Adjustment Mode Access via Remote Control ------------PTV 01-06 Intermittent Black Horizontal Bars (Low AC) --------------------------------------PTV 01-08A Glue Residue when Removing Protective Plastic Sheet from Screen ----------PTV 01-10 STOP displayed (CRT Snap) ----------------------------------------------------------PTV 01-14 Symmetry (Geometry) Adjustments --------------------------------------------------Poor Picture Quality when watching NTSC on a 2H (HD Ready) set ---------------------Things You Should Know: Random Shutdown, Relay Stick, Coil Backwards, etc... -------
09-01
09-03
09-04
09-05
09-06
09-07
09-08
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09-12
MICROPROCESSOR
INFORMATION
DP-1X CHASSIS
SECTION 1
DP-1X MICROPROCESSOR DATA COMMUNICATION DESCRIPTION
Microprocessor Data Communications circuit diagram. (See Diagram on page 01-06)
The Microprocessor must keep in communication with the Chassis to maintain control over the individual circuits. Some of the circuits must return information as well so the Microprocessor will know how to respond to
different request.
The Microprocessor uses a combination of I2C Bus communication and the Serial Data, Clock and Load lines for
control. The I2C communication scheme only requires 2 lines for control. These lines are called SDA and SCL.
Serial Data and Serial Clock respectively.
The Microprocessor also requires the use of what are called Fan Out IC or DACs, (Digital to Analog Converters).
This allows the Microprocessor to use only two lines to control many different circuits.
Also, due to the fact that this Microprocessor operates at the new 3.3Vdc voltage, it requires a Level Shift IC to
bring up the DC level of the control lines to make it compatible with the connected ICs.
The Microprocessor communicates with the following ICs:
ON THE SIGNAL PWB:
Main Tuner U501
PinP Tuner U502
EEPROM I002
Flex Converter UC01
DAC1 I006
DAC3 I007
Level Shift I004
3D Y/C I301
Main Video Chroma I501
Rainforest IC01
ON THE TERMINAL PWB:
A/V Selector IX01
Sub Video Chroma IX03
Main Y Pr/Pb Selector IX04
Sub Y Pr/Pb Selector IX05
ON THE SURROUND PWB:
Front Audio Control IA01
The following explanation will deal with the communication paths used between the Microprocessor and the respected ICs.
ON THE SIGNAL PWB:
Main Tuner U501 (with MTS outputs).
The Microprocessor controls the Main Tuner by SDA (Data) and SCL (Clock) I2C communication lines.
SCL1 and SDA1 lines for the Main Tuner are output from the Microprocessor at pins (2 SDA1 and 3 SCL1) respectively. These lines go directly to the Main Tuner, SDA1 at pin (5) and SCL1 at pin (4). These lines control
band switching, programmable divider set-up information, pulse swallow tuning selection, etc...
PinP Tuner U502 (monaural only, but audio not used).
The Microprocessor controls the Main Tuner by SDA (Data) and SCL (Clock) I2C communication lines.
SCL1 and SDA1 lines for the Main Tuner are output from the Microprocessor at pins (2 SDA1 and 3 SCL1) respectively. These lines go directly to the Main Tuner, SDA1 at pin (5) and SCL1 at pin (4). These lines control
band switching, programmable divider set-up information, pulse swallow tuning selection, etc...
EEPROM I003
The EEPROM is ROM for many different functions of the Microprocessor. Channel Scan or Memory List, Customer set ups for Video, Audio, Surround etc… are memorized as well. Also, some of the Microprocessors internal sub routines have variables that are stored in the EEPROM, such as the window for Closed Caption detection.
(Continued on page 2)
PAGE 01-01
(Continued from page 1)
Data and Clock lines are SDA1 from pin (2) of the Microprocessor to pin (5) of the EEPROM and SCL2 from
pin (3) of the Microprocessor to pin (6) of the EEPROM. Data travels in both directions on the Data line.
Flex Converter UC01
The projection television is capable of displaying NTSC as well as ATSC (DTV) including HD (High Definition). The Flex Converter is responsible for receiving any video input and converting it to 33.75 Khz output.
This output is controlled by sync and by the customer’s menu and how it is set up. The set up can be 4X3 or
16X9 for DTV, or letterbox. This set also has something called “Through Mode”. This bypasses the Flex Converter completely and inputs the 1080i signal directly to the Rainforest IC. The Rainforest IC then output the
signal directly as well as shrinking the vertical to match the 16 X 9 window by outputting “Vertical Squeeze”,
(V Squeeze not used for the 16 X 9 models). The Flex Converter can take any NTSC, S-In, Component, NTSC
or Progressive, Interlaced, 480I, 720P, 1080i signal. (Note: 1080i is routed through the Rainforest IC in 16 X 9
HD mode only).
Control for the Flex Converter is Clock, Data and Enable lines.
Clock, Data and Enable lines for the Flex Converter are output from the Microprocessor at pins (45 Data and
46 FCENABLE). The FCENABLE line is routed through the PFC1 connector pin 12 and the FCDATA line is
routed through the PFC1 connector pin 11.
The Clock line must be routed through the Level Shift IC I004 to be brought up to 5V. The Microprocessor
output for Clock is pin 58, it arrives at I004 at pins (3 Clock) and is output at pins (17). It arrives at the Flex
Converter through the PFC1 connector pin 10.
DAC1 I006 (See Diagram on page 01-07)
This Digital to Analog converter acts as an extension of the Microprocessor. Sometimes called an Expansion
IC. The purpose of this IC is to reduce the number of pins, (fan out) of the Main Microprocessor I001. The
Main Microprocessor send Clock and Data via I2 C bus to the DAC1 IC. The output from the Microprocessor is
pin (2 SDA1 and 3 SCL1) which arrives at the DAC1 IC I006 at pins (5 and 6) respectively.
The following is a list of the input and output pins on DAC1.
PIN
FUNCTION
1. Busy
Receives Busy from DCU stopping Microprocessor from responding to Remote commands.
2. ST Det
Receives the Low from the Main Tuner indicating Stereo signal received.
3. MTS
Places the Main Tuner into MTS mode if Stereo MTS Detected by Microprocessor
4. F Mono
Places the Main Tuner into Forced MONO mode
5. Ant
Switches the antenna block into Antenna A or Antenna B when selected.
6. Cut Off
In Service Mode, if Set Up is selected, outputs High to collapse Vertical circuit and inhibit Vert. Sweep Loss Detection
7. Magic Sw Places the Unit into Magic Focus Mode, outputs Lo when MF activated by front control switch or Customer’s Menu.
8. Gnd
Ground
9. D Size
During Magic Focus, the H and V Size has to be increased slightly for Sensor striking purposes. This pin goes Hi.
10. SAP Det Receives the Low from the Main Tuner indicating SAP signal received.
11. Gnd
Ground Not Used
12. Gnd
Ground Not Used
13. STBY 5V Standby +5 Volt input.
14. SDA1
Serial Data from Microprocessor
15. SCL1
Serial Clock from Microprocessor
16. SBY +5V Vcc SBY +5V
NOTE: Pin 1 Busy and Pin 9 D Size works as a tri-data-level-input according to table below.
Pin 1 Busy
Pin 9 D Size
Digital Convergence Module Active
Magic Focus
Lo
Lo
Inactive
Inactive
Hi
Lo
Active
Inactive
Hi
Hi
Active
Active
Lo
Hi
Not Possible
Not Possible
The Digital Convergence Module is active during Service Adjustment (DCAM), Magic Focus and/or Sensor
Initialize.
PAGE 01-02
DAC3 I007 (See Diagram on page 01-07)
This Digital to Analog converter acts as an extension of the Microprocessor. Sometimes called an Expansion
IC. The purpose of this IC is to reduce the number of pins, (fan out) of the Main Microprocessor I001. The
Main Microprocessor send Clock and Data via I2C bus to the DAC3 IC. The output from the Microprocessor is
pin (2 SDA1 and 3 SCL1) which arrives at the DAC3 IC at pins (5 and 6) respectively.
The following is a list of the input and output pins on DAC3.
PIN
1
2
3
4
5
6
7
8
9
FUNCTION
Detects the presents of Sync from Component Y signal for 1 or 2
Detects IR from Remote for Auto Link Remote Set Up.
Activates Perfect Volume determined by Customer
T3 (Factory Use)
T3 (Factory Use)
T3 (Factory Use)
(Factory Use)
Ground
When Magic Switch pressed on front Control Panel this pin goes Low, IC tells Microprocessor to output a Low from
I006 pin 7 to start Magic Focus.
10 IN5DET
Detects Cr/Pr plug insertion for Component 5 input. (Component 4 is detected by Selector IC pin 7)
• When no Cr/Pr plug inserted, set assumes Composite at the Y input.
11 Gnd
Ground Not Used
12 Gnd
Ground Not Used
13 Gnd
Ground Not Used
14 SDA
Data I 2 C communications between DAC2 and Microprocessor
15 SCL
Clock I2 C communications between DAC2 and Microprocessor
16 Vcc
IC B+. (STBY +5V).
NOTE: Pin 2 The IR pulse from the Remote Control is monitored when Auto Link is set.
Sig Det
IR Det
P Vol
AC3 Info
FH Det Out 1
FH Det Out 2
FC Blue Back
Gnd
Magic Sw In
Level Shift I004
The Microprocessor operates at 3.3Vdc. Most of the Circuits controlled by the Microprocessor operate at 5Vdc.
The Level Shift IC steps up the DC voltage to accommodate.
• Pin 4 output a Clock, used by the Flex Converter
• Pin 11 output Error Mute signal (ERRMUTE), used to mute the Out to Hi-Fi jacks on the SRS PWB.
• Pin 13 outputs a Speaker Off signal (FSPOFF), used to turn off the internal speakers.
3D Y/C I301 (IC mounted directly on the Signal PWB).
The 3D Y/C IC is a Luminance/Chrominance separator, as well as a 3D adder. Separation takes place digitally.
Using advanced separation technology, this circuit separates using multiple lines and doesn’t produce dot pattern interference or dot crawl. The 3D effect is a process of adding additional emphasis signals to the Luminance and Chrominance. These signals relate specifically to transitions. Transitions are the point where the signal goes from dark to light or vice versa. The 3D adds a little more black before the transition goes to white and
a little more white just before it gets to white. It also adds a little more white just before it goes dark and a little
more dark just before it arrives. This gives the impression that the signal pops out of the screen or a 3D effect.
The Microprocessor communicates with the 3D Y/C IC via I2 C bus data and clock. The communications ports
from the Microprocessor are pins (59 SDA2 and 60 SCL2) to the 3D Y/C I301 pins (59 and 60) respectively.
The Microprocessor also is able to turn on and off circuits within the 3D Y/C circuit determined by customer
menu set-up.
Main Video Chroma I501
The Main Video Chroma IC processes the video and chroma from the 3D Y/C circuit for the main picture. It
converts video into Y and chroma into Cr/Cb (NTSC Only). Communication from the Microprocessor via pins
(59 SDA2 and 60 SCL2) to I501 pins (34 and 33) respectively.
PAGE 01-03
Rainforest IC01 (Video/Chroma Processor)
The Video Processing IC (Rainforest) is responsible for controlling video/chroma processing before the signal
is made available to the CRTs. Some of the emphasis circuits are controlled by the customer’s menu. As well as
some of them being controlled by AI, (Artificial Intelligence).
Communication from the Microprocessor via pins (59 SDA2 and 60 SCL2) to the Rainforest IC pins (31 and
30) respectively.
ON THE TERMINAL PWB: (Through the connector PST1)
A/V Selector IX01
The A/V Selector IC is responsible for selecting the input source for the Main Picture as well as the source for
the PinP or Sub picture. Communication from the Microprocessor via pins (2 SDA1 and 3 SCL1) to the PST1
connector pins (5 and 4) respectively then to IX01 pins (34 and 33) respectively.
Sub Video Chroma IX03
The Sub Video Chroma IC processes the video and chroma for the Sub or PinP picture. It converts Luminance
into Y and Chroma into Cr/Cb (NTSC Only). Communication from the Microprocessor via pins (59 SDA2 and
60 SCL2) to connector PST1 pins (8 and 7) to IX03 pins (34 and 33) respectively.
Main Y Pr/Pb Selector IX04
Any input that is not already in the Y Pr/Pb or Y Cr/Cb state, will have be converted to this state by I501.
The Main Y Pr/Pb Selector IC selects the appropriate input between the Tuner, AV Inputs, S-Inputs or Components. Communication from the Microprocessor via pins (59 SDA2 and 60 SCL2) to connector PST1 pins (8
and 7) to IX04 pins (31 and 30) respectively.
Sub Y Pr/Pb Selector IX04
Any Sub input that is not already in the Y Pr/Pb or Y Cr/Cb state, will have be converted to this state by IX03.
The Sub Y Pr/Pb Selector IC selects the appropriate input between the Tuner, AV Inputs, S-Inputs or Components. Communication from the Microprocessor via pins (59 SDA2 and 60 SCL2) to connector PST1 pins (8
and 7) to IX05 pins (31 and 30) respectively.
ON THE SURROUND PWB (Through the PSU1 connector):
Front Audio Control IC IA01
Audio control is performed by this IC. Selection for different Audio modes, volume, base, treble, etc... The
Main Microprocessor sends Clock and Data via I2C bus to this IC. The output from the Microprocessor is pins
(59 SDA2 and 60 SCL2) respectively then through the connector PSU1 pins (2 and 1) which arrives at IA01 at
pins (4 and 5) respectively.
PAGE 01-04
60
2
3
SCL2
SDA1
SCL1
3
4
Data 57
8
9
DSP SS 15
DSP DIR 14
7
6
DSP SI Bypass 17
DSP Sck Ft Spk
16
Off
5
18
DSPReset
SCL1 15
3.3V -> 5V
Level Shift
I004
DAC1 SDA1 14
I006
Clock 58
FCData 45
SCL1
U502
Tuner PinP SDA1
11
12
13
14
15
16
17
5
4
5
4
Clock
Data
ERRMUTE
DSPSS
FT Spk Off
DSP SI BYPASS
DSP Reset SRS
DATA
10
11
12 Enable
PFC1
30
SCL1
31
60
59
IC01
I301
3D/YC
Rainforest
Sweep Cont.
Tuner 1 Main SDA1
U501
34
33
SDA2
FCEnable 46
59
SDA2
IOO1
I501
Main Video/
Chroma
4
I007
SCL1 EEPROM
6
Signal PWB
FLEX
&
PinP
ERRMUTE
DSPSS
DSPSCK
DSPSI
DSP Reset
DATA
CLOCK
ERRMUTE
FT Spk Off
SDA1
5
IOO3
15 SCL1 DAC3
14 SDA1
33 SCL1 A/V Select
IX01
SDA2 IX03
Sub Video
SCL2
Chroma
34 SDA1
33
7
5
34
8
UC01
SCL2
SDA2
PST1
30
31
30
31
SCL2
SDA2
IX05
Sub YPrPb
Selector
Main YPrPb
Selector
IX04
Terminal PWB
5 Not Used
4 Not Used
1 Not Used
2 Not Used
12 Not Used
9 Not Used
13 Not Used
PSU2
6 Mutes Out to Hi-Fi jacks.
4 Front Speaker Off
1
2
PSU1
SCL2
SDA2
SCL2
SDA2
SCL2
SDA2
SRS PWB
5
4
Front
Audio Control
IA01
DP1X (Not DP17) CHASSIS MICROPROCESSOR DATA COMMUNICATIONS CIRCUIT DIAGRAM
SCL2
PAGE 01-05
60
2
3
SCL2
SDA1
SCL1
SCL1 15
4
Data 57
30
31
30
31
IX04
SCL2
SDA2
IX05
Sub YPrPb
Selector
Main YPrPb
Selector
CLOCK
7
10
DSP Request 11
DSP CSI 10
5
4
1
DSP CSI
DSP Request
DSP DIR
DSP S0
DSP Busy
ERRMUTE
DSPSS
DSPSCK
12 DATA
DSP Reset
9
DSPSI
2
13
PSU2
17 SRS (Not Used)
16 ByPass (Not Used)
5
4
DSP
CIRCUIT
IS01
Front
SCL2 Audio Control
SDA2
Terminal PWB
Surround PWB
6 ERRMUTE Mutes Out to Hi-Fi jacks.
4 Front Speaker Off
6
FLEX
&
PinP
UC01
1
2
DSP DIR 14
Clock
Data
Enable
SCL2
PSU1
3
ERRMUTE
DSPSS
FT Spk Off
DSP SI BYPASS
DSP Reset SRS
10
11
12
PFC1
14 SDA1 I007
15 SCL1 DAC3
6
SDA1 IOO3
SCL1 EEPROM
SCL2
SDA2
SDA2
DSP S0 13
11
12
13
14
15
DATA
CLOCK
5
33 SCL1 A/V Select
4
IX01
34 SDA1
33
SCL2 7
SDA2 IX03
Sub Video
SCL2
Chroma
5
34
8
8
9
DSP Error Mute 19
3.3V -> 5V
Level Shift
16
17
5
4
5
4
PST1
SDA2
DSP Busy 12
8
7
6
DSP SI Bypass 17
60
SDA2
DSP Sck Ft Spk
16
Off
DSP SS 15
5
18
I004
DAC1 SDA1 14
3
DSPReset
SCL1
U502
Tuner PinP SDA1
I006
I301
3D/YC
59
31
IC01
Rainforest
Sweep Cont. 30
SCL1
34
33
Tuner 1 Main SDA1
U501
I501
Main Video/
Chroma
Clock 58
FCData 45
FCEnable 46
59
SDA2
IOO1
Signal PWB
DP-17 CHASSIS MICROPROCESSOR DATA COMMUNICATIONS CIRCUIT DIAGRAM
SCL2
PAGE 01-06
DP-1X SERIES CHASSIS DAC 1 and DAC 3 INFORMATION
16
Vcc SBY +5V
Busy
1
Receives Busy from DCU stopping Microprocessor from responding to Remote commands.
ST Det
2
Receives the Low from the Main Tuner indicating Stereo signal received.
MTS
3
Places the Main Tuner into MTS mode if Stereo MTS Detected by Microprocessor
F Mono
4
Places the Main Tuner into Forced MONO mode
ANT
5
Switches the Antenna Switch Assembly from Antenna 1 to Antenna 2
Cut Off
6
In Service Mode, if Set Up is selected, outputs High to collapse Vertical circuit and inhibit Vert. Sweep Loss Detection
Magic Sw. Out
7
D Size
9
When Magic Focus Sw pressed or from Menu Selection, this pin goes Low and Places the DCU into Magic Focus Mode
During Magic Focus, when the H and V Size has to be increased slightly for Sensor striking purposes. The DCU
output D Size (Hi). (Not in the 16X9 models
8
Gnd
11
12
Not
Used
Not
Used
13
SBY +5V
16
8
11
12
13
PAGE 01-07
SAP Det
10
Receives the Low from the Main Tuner indicating SAP signal received.
I006
SDA1
14
DAC1
SCL1
15
1
Detects active Sync from Component Y signal for 1 or 2
2
Detects IR from Remote for Auto Link Remote Set Up
3
Activates Perfect Volume determined by Customer
4
T4 (Factory Use)
5
T5 (Factory Use)
FH Det Out 2
6
T6 (Factory Use)
FC Blue Back
7
T7 (Factory Use)
Magic Sw In
9
When Magic Switch pressed on Ft. Control Panel, this pin goes low, Micro tells I006 pin 7 to go high.
IN5DET
10
Detect Pr/Cr plug insertion for Component 5 input. If NO, then composite is assumed.
I007
SDA1
14
DAC 3
SCL1
15
Vcc SBY +5V
Sig Det
Gnd
IR Det
Not
Used
P Vol
Not
Used
AC3 Info
Not
Used
FH Det Out 1
Note: Component 4 Pr/Cr is detected by the Selector IC.
DP-1X ON SCREEN DISPLAY (OSD) SIGNAL PATH DESCRIPTION
The Microprocessor is responsible for generating On Screen Display (OSD) related to the Main Menu, Volume
Control, Channel Number, Closed Caption Display, Clock, etc… It also generates the OSD for the Service Menu.
However there are actually two different sources for generating OSD, the Microprocessor and the Digital Convergence Unit, (DCU).
MICROPROCESSOR AS THE SOURCE FOR OSD:
The Microprocessor receives information related to timing for H. Blanking pin (49) and V. Blanking pin (55). The
Microprocessor determines the position for each display using these signals as a timing pulse.
When it’s necessary, the Microprocessor generates 1uSec pulses from pins (37 Red, 38 Green and 39 Blue) that
are routed through (QC21 Red, QC20 Green and QC19 Blue) and then sent to the Rainforest IC IC01 pins (39
Red, 38 Green and 37 Blue) as OSD signals. When the OSD signals are high, they turn on the output of the Red
or Green or Blue chroma amps inside the Rainforest IC and output a pulse to the CRTs to generate that particular
character in the particular color.
HALF TONE PIN (40):
This pin is responsible for controlling the background transparency of the Main Menu. When the customer calls
up the Main Menu, they can select the CUSTOM section. Within the CUSTOM section is MENU BACKGROUND. There are three selections for this, GRAY, SHADED, and CLEAR.
• CLEAR: Selection turns off any background for the Menu and video is clearly seen behind the Menu.
• CLEAR: No output during the display of the Menu.
• SHADED: Selection add a transparent background which makes the Menu easier to see and also some of the
video behind the Menu.
• SHADED: 1/2 Vcc pulse equal to the timing of the Menu background.
• GRAY: Selection generates a GRAY background for the MENU blocking video behind the Menu. This is
accomplished by outputting any one of three different pulses from pin (40) of the Microprocessor. This signal
is then routed to (QC16) and then to the Rainforest IC IC01 pin (36) as YS1 signal which does the following:
• GRAY: Full Vcc equal to the timing of the Menu background.
OSD BLANKING PIN (51):
This pin is responsible for muting the video at the same time each character is produced by the Microprocessor.
This pulse is in exact time with the character, however it is slightly longer. In other words, just before any character is produced, this pin goes high and just after any character turns off, this pin turns off. This clears up the video
behind the OSD character to make it easier to read.
OSD Blk is produced from pin (51) of the Microprocessor. This signal is then routed to the Rainforest IC IC01
pins (50 YS2 OSD and 51 YS1 OSD) which mutes the video when these pins are high. They also prevent the output of the peak high Y component for Velocity Modulation.
CLOSED CAPTION DISPLAY FROM THE MICROPROCESSOR SOURCE:
The Microprocessor is also responsible for stripping the Closed Caption Display (CCD) from within the Vertical
Sync on horizontal line 21. It receives the composite video signal at pin (28). This signal is tapped off the main
video path before it arrives at sync separator Q010~12. The tapped video is routed through Q014 to the Microprocessor at pin (28). (See Sync Signal Path Circuit Diagram and Explanation for Details).
DCU (Digital Convergence Unit HC2153) AS THE OSD SOURCE:
The DCU (Digital Convergence Unit) generates it’s own OSD patterns and text. Like the Adjustment Grid, Cursor, certain blinking patterns, Words associated with DCAM, etc… The DCU generates OSD in the same fashion
as the Microprocessor. The DCU generates Digital Red from pin (11), Digital Green from pin (12) and Digital
Blue from pin (10) output from the PDG connector and then through (QK06 Dig Red, QK07 Dig Green and
QK08 Dig Blue). The DCU OSD is then routed through the PDK1 connector pins (11 Red, 12 Green and 13
Blue) and then through the PSD1 connector pins (2 Red, 4 Green and 6 Blue) They then are sent through
(QC24 Red, QC23 Green and QC22 Blue) and finally arrive at the Rainforest IC IC01 pins (35 Analog Red In,
34 Analog Green In and 33 Analog Blue In) as Digital Convergence graphic signals.
PAGE 01-08
DP-1X ON SCREEN DISPLAY (OSD) SIGNAL PATH DESCRIPTION
BUSY SIGNAL:
When the DCU is activated by pressing the Service Only switch on the Deflection PWB, the DCU outputs a
BUSY signal. This signal does two things.
1. It tells the Microprocessor to ignore Infrared Remote commands. It does this by outputting the BUSY signal from pin (10) of the PDG connector, then through the PDK1 connector pin (10). Then through the
PSD1 connector pin (1). Then to I006 (the Analog to Digital converter). The Analog to Digital converter
outputs this information in digital form through the I2C bus to the microprocessor. The I2C data is output
from pin (14 SDA1 and timed by the clock 15 SCL1) They arrive at the Microprocessor I001 pins (2 and
3). When the Microprocessor receives this BUSY signal, it ignores all Infrared Remote commands.
2. It blanks video so that the DCU graphics can be see easily. This is accomplished by the same BUSY signal
being routed from pin (10) of the PDG connector, then through the PDK1 connector pin (10). Then
through the PSD1 connector pin (1). It is then routed to the Rainforest IC IC01 pin (49) as YS3 signal
which mutes video.
GRAPHICS PRODUCED BY THE DCU:
• Cross hatch grid.
• Colored Cursor which blinks indicating the adjustment point
• Different text such as, Read from ROM?, Write to ROM?
• Light pattern for Sensor Initialization
• Light pattern for Magic Focus.
• The DCU can also turn off individual colors during adjustment. Everything except Green. This is accomplished by not producing the particular color’s characters from the DCU.
PAGE 01-09
Q005 V Sync
Q006 H Sync
OSD B 39
I001
Main uP
BUSY
12
13
D Size
Dig B
7
Dig G
11
12
2
D Size
BUSY
V Mute
OSD YM
OSD YS
OSD Red
QC17
QC16
QC19
8
PSD2
26
4
25
1
PSD1
OSD Green
OSD Blue
QC24
QC23
QC22
QC21
QC20
Signal PWB
Deflection PWB
PDK3
Convergence PWB
V Blk
H Blk
+5V SRAM
+5V
-5V
QK06 Dig R
QK07
13
10
10
QK08
Half Tone 40
PDK1
2
3
OSD Blk 51
PDG
SDA1
11
Digital
Convergence 1
Unit
2
"DCU"
3
"Mounted on 4
Deflection
5
PWB"
6
UKDG
HC2152/3
D Size
1
14
15
SCL1
Sync2 for V-Chip Data 30 Sub OSD R 37
I006
DAC1
9
55
49
Sync for Closed Caption
28 Main
and V-Chip Data
OSD G 38
V Blk
H Blk
R Out
G Out
B Out
Analog R In
Analog G In
Analog B In
YS2
YS3
RGB
YS1
YS1 OSD
YS2 OSD
Analog R In
Analog G In
Analog B In
Signal PWB
35
34
33
49
50
51
36
37
38
39
IC01
Rainforest
43
42
41
QC30
QC35
QC40
DP-1X CHASSIS "On Screen Display, OSD" SIGNAL CIRCUIT DIAGRAM
1 R
3 G
5 B
PZC
To CRTs
PAGE 01-10
DP-1X AUDIO and VIDEO MUTE SIGNAL PATH DESCRIPTION
V MUTE 1 EXPLANATION: (See Diagram on page 01-13)
There are certain times when the Microprocessor or other circuits must Mute the video or audio. The Microprocessor is responsible for Muting the Audio/Video during Channel Change, Power On/Off, Child Lock, AVX Selected with no input, etc….
This is accomplished via pin (56) of the Microprocessor. When V Mute is activated, a high is routed through
D019 to the base of Q023 turning it ON. The collector goes low and pulls the base of Q022 low turning it ON.
The emitter of Q022 is connected to STBY +11V, so when it turns ON, it’s collector output goes HIGH. This
high is now called V Mute 1. V Mute 1 is routed to two circuits, for Video Mute and for Audio Mute.
FOR VIDEO MUTE:
There are two different signals that mute video on the Rainforest IC, IC01 pin (52 FBP In):
1. V MUTE 1
• This high is routed through the PSZ2 connector pin (6) to DX08. DX08 sends this high to the base of
QX18 turning it OFF. The emitter of QX18 is connected to the SW +9V line and when it turns OFF the
emitter pulls up HIGH. This pulls up pin (25) of IX01 the Rainforest IC and Mutes the Video. Oddly
enough, this high is sent into the same pin as the Flyback Pulse used for horizontal blanking. So it can be
thought of as an extremely long blank pulse.
2. HALF TONE PIN:
This pin is responsible for controlling the background transparency of the Main Menu. When the customer
calls up the Main Menu, they can select the CUSTOM section. Within the CUSTOM section is MENU
BACKGROUND. There are three selections for this, GRAY, SHADED, and CLEAR.
• CLEAR: Selection turns off any background for the Menu and video is clearly seen behind the Menu.
• CLEAR: No output during the display of the Menu.
• SHADED: Selection add a transparent background which makes the Menu easier to see and also some of
the video behind the Menu.
• SHADED: 1/2 Vcc pulse equal to the timing of the Menu background.
• GRAY: Selection generates a GRAY background for the MENU blocking video behind the Menu. This
is accomplished by outputting any one of three different pulses from pin (40) of the Microprocessor. This
signal is then routed to (QC16) and then to the Rainforest IC IC01 pin (36) as YS1 signal which does the
following:
• GRAY: Full Vcc equal to the timing of the Menu background.
V Mute 1 FOR AUDIO MUTE:
The V Mute 1 signal is also routed to the base of Q021 turning it ON. The high produced on it’s emitter is now
called V Mute 2 which is routed to two places.
1. To the anode of DJ04, to the base of QJ03 which turn ON and grounds pin (11) of IJ01 placing the
Front Audio output IC into Mute.
2. To PSU1 connector pin (5) which mutes the (OUT TO HiFi) audio. See the SRS Mute Circuit diagram
details.
ERRMUTE pin (19) of the Microprocessor:
When the Microprocessor deems it necessary to mute the audio, it outputs a ERRMute signal from pin (19) to
I004 pin (9) the Level Shift IC. This IC outputs the high from pin (11) to two places;
1.
To the anode of DJ01, then to the base of QJ01 and QJ02 which grounds the audio input to pin (4 Right
audio in and 2 Left audio in) of IJ01 Audio Output IC.
2. To the Surround PWB via the PSU1 connector pin (6) called Mute. Then to DA02 to drive the base of
QA05 and QA06 high, turning them on. They ground the audio outputs for (OUT TO HiFi) and they are
muted.
See the Surround Mute Circuit diagram and explanation for details.
PAGE 01-11
DP-1X AUDIO and VIDEO MUTE SIGNAL PATH DESCRIPTION
F.Spk Off FRONT SPEAKER OFF:
When the customer accesses the Main Menu and selects the Front Speaker Off selection, the Microprocessor
I001 outputs a high from pin (16). This high is routed to I004 pin (7) the Level Shift IC. This IC outputs the
high from pin (13) to the following circuit;
1. To the anode of DJ02, then to the base of QJ01 and QJ02 which grounds the audio input to pin (4
Right audio in and 2 Left audio in) of IJ01 Audio Output IC.
• NOTE: This line also goes to PSU1 connector pin 4, but not used in this chassis.
AC LOSS DETECTION:
AC is monitored by the AC Loss detection circuit. The AC input from PQS1 pin (1) is rectified by D023. This
charges up C054 and through DN22 it charges C053. When AC is first applied, C053 charges slightly behind
C054 preventing activation of Q024. If AC is lost, C054 discharges rapidly pulling the base of Q024 low, however D022 blocks C053 from discharging and the emitter of Q001 is held high. This action turns on Q024 and
produces a high on it’s collector. This high is routed through D021 to the base of Q023 turning it ON. The collector goes low and pulls the base of Q022 low turning it ON. The emitter of Q022 is connected to STBY
+11V, so when it turns ON, it’s collector output goes HIGH. This high is now called V Mute 1. V Mute 1 is
routed to two circuits, see V Mute 1 explanation on the previous page.
SPOT:
SPOT is generated from the deflection PWB when either Horizontal or Vertical deflection is lost. This is to prevent a horizontal or vertical line from being burnt into the CRTs. See Horizontal and Vertical Sweep Loss Detection circuit and explanation for details. This high is input from PSD2 pin (3), through D020 to the base of
Q023 turning it ON. The collector goes low and pulls the base of Q022 low turning it ON. The emitter of Q022
is connected to STBY +11V, so when it turns ON, it’s collector output goes HIGH. This high is now called V
Mute 1. V Mute 1 is routed to two circuits, see V Mute 1 explanation on the previous page.
PAGE 01-12
R0A0
C054
R199
56
16
19
ERRMute
VMute2
C053
6
4
11
10
5
PSU1
7
9
R007
R022
TruSurround/SRS
PWB
ERRMute
V MUTE
Ft Spk Off
I001
Micro Processor
D022
R196
10V p/p
Q024
D020
ERRMute
F. Spk Off
DJ01
DJ02
CJ02
RC08
RC07
OSD YM
RC54
QC16
CC08
QJ03
QC17
RC04
QJ01
QJ02
CC09
RC09
CJ05
CJ04
L In L Out
2
FRONT L&R
Audio Output
R In R Out
IJ01
Mute
YM/
52 P-Mute
Blk
19
IC01
7
PZC
4
11
Mute = Lo
RC56
RC63
HVcc+9V
V. Mute 1
See OSD Signal Path
R186
RC03
Q021
Left Ft. Audio
DJ04
R187
V Mute 1
R195
Q022
C052
CJ01
DJ03
D017
R189
R191
Right Ft. Audio
V Mute 2
13
R193
V Mute 2
F. Spk Off
Signal PWB
R194
R195
Q023
R192
D018
SBY +11V
PSD2
ERR Mute
11
Level Shift
I014
D019
D021
3
"SPOT"
Horizontal Sweep Loss Det.
Vertical Sweep Loss Det.
(From Deflection PWB)
D023
PQS1
1
R198
From I904
Pin 3
AC Photo Coupler
AC Sig
R197
DP-1X Series Chassis AUDIO and VIDEO MUTE Circuit
Without DSP (See also Surround Mute Circuit)
12
7
CRT PWB
PAGE 01-13
R0A0
C054
R199
C053
ERRMute 6
4
11
10
5
PSU1
5
3
D020
Q023
ERRMute
F. Spk Off
CJ02
DJ04
DJ14
CJ29
CJ28
DJ01
DJ02
DJ22
DJ11
DJ21
D040
Center
RJ34
RJ33
RC04
RJ08
RJ07
RJ32
R186
Q021
C052
DJ13
DJ12
V Mute 1
R187
Q022
D017
Left Ft. Audio
DJ03
Cent Spk
19
Off
From IS01 Pin 6
Cent 20
PSU2
2 of 2
V Mute 2
D029
R188
R193
R189
R191
CJ01
13
F. Spk Off
Signal PWB
R194
R195
PSD2
R192
D018
SW +35V
Right Ft. Audio
V Mute 2
ERR Mute
11
Level Shift
I004
D019
D021
1 of 2
PSU2
7
9
R007
R022
From IS01 Pin 7
Audio
DSP
Surround PWB
ERRMute
Ft Spk Off
V MUTE
I001
56
16
19
D022
D023
R196
10V p/p
Active High
"SPOT"
Horizontal Sweep Loss Det.
Vertical Sweep Loss Det.
(From Deflection PWB)
Q024
Micro Processor
1
PQS1
R198
From I904
Pin 3
AC Photo Coupler
AC Sig
R197
QJ05
RC03
QJ02
QJ01
CJ08
RJ31
QJ06
CJ35
OSD YM
RC54
QC17
CJ05
CJ04
CJ09
QJ03
RJ09
CJ31
CJ30
CJ37
QJ07
RJ35
QC16
HVcc+9V
DP-17 Series Chassis AUDIO and VIDEO MUTE Circuit
(See also DP-17 Surround Mute Circuit)
7
FL Out 12
FRONT L & R
Audio Output
2 FL In
4 FR In FR Out
IJ01
11 Mute = Lo
CENTER L & R
Audio Output
2 CL In CL Out 12
4 CR In CR Out
IJ02
7
IC01
7
YM/
52 P-Mute
Blk
19
11 Mute = Lo
RC56
RC63
V. Mute 1
PZC
CRT PWB
PAGE 01-14
PAGE 01-15
ERRMute 6
5
V Mute 2
Mute
13
2
SDA2
VMute
14
1
SCL2
PSU1
SDA
SCL
IA01
Audio
Control
DA02
DA01
DA04
DA03
DP-1X Series Chassis TruSurround / SRS MUTE Circuit
(See also Audio Video Mute Circuit)
QA06
HiFi L
QA05
HiFi R
ERRMute 5
PSU2
V Mute 2 5
ERRMute 6
From I004 pin 11
SDA2 2
SCL2 1
PSU1
Surround 1 of 4
PAGE 01-16
QT10
From IS09
pin 1 & 7
13 SDA
Rear L
Rear R
R Spk Off 13
IS01
Audio
D/A
14 SCL
Surround 2 of 4
Surround 1 of 4
Rear L
Rear R
QT06
QT05
DT02
ERRMute
VMute
QT09
CSH9
CSH8
DS07
DS26
DS08
RS97
DS22
QS07
CSJ6
QS08
RS96
RS99
Surround 3 of 4
Center
Sub Woofer
1
7
RS98
FL Front Left
FR Front Right
DS09
DS10
QT07
1
7
Surround 2 of 4
IT12
IT10
QT04
QT03
QT08
DS21
DS19
From IS10
pin 39
CSJ2
CSJ1
CSJ7
HiFi R
SL Out 12
REAR L & R
Audio Output
or Surround L & R
2 SL In
4 SR In SR Out 7
IS15
11 Mute = Lo
Surround 3 of 4
Sub Woofer
QS18
QS16
HiFi L
QS15
From IS08
pin 1
DS23
DS20
DS18
RSA1
QS09
DS17
From IS10 pin 4
Surround # of 4 indicates this circuit on the Surround # of 4 Schematic Page (DP17 Only).
DP-17 Chassis SURROUND MUTE Circuit
(See also DP-17 Audio Video Mute Circuit)
DP-1X MEMORY INITIALIZATION PROCEDURE (EEPROM RESET)
WARNING: This should only be done in extreme cases. I 2C Data will be reset as well.
Be sure and write down all data values before continuing.
NOTE: Sub Brightness and Horizontal Position for HD and Progressive will be reset to an incorrect value. Be sure to enter Service Menu, (with power off, press and hold the INPUT button, then press and hold POWER. I2C Service Menu will appear. The second selection is SUB
BRIT. Write this value down. On the Second page is H. POSI, write this value down in Progressive and in HD mode.
1)
2)
3)
4)
5)
6)
Disconnect Power to Television.
Remove the Back Cover.
Remove the two screws holding the Main chassis to the Cabinet if necessary.
Disconnect wiring harness clips to free up the chassis if necessary.
Reconnect Power to the Television and turn the set ON.
Locate PRST and add a jumper between pins 1 and 2 of the PRST connector as shown below.
7) Hold jumper in place for 5 seconds. (A beep will NOT be heard).
8) Remove the jumper.
9) Confirm EEPROM reset, Input source is now set to Air and not to Cable 1 or 2. No Child
Lock, and only channels 2 through 13 are in memory.
10) Power Off
11) Reassemble Chassis and reinstall PTV back.
12) Enter the I2C Service Menu and re-enter the values for SUB BRIT and H.POSI
(Progressive and HD modes).
• Failure to re-enter these values will result in a dark picture and the horizontal centering will
be shifted off to the right. Convergence may be affected as well.
• DO NOT ATTEMPT TO CORRECT H. Centering with Convergence Adjustments.
• NOTE: All customers' Auto Programming and Set-Ups are returned to factory settings.
Jumper
SBY +3.3V
R176
R166
2
1
SBY +3.3V
PRST
Connector
R017
D008
8
KEY-IN2
58
CLOCK
I001
MicroProcessor
PAGE 01-17
DP-1X FACTORY RESET CONDITION
HITACHI USER CONTROL INITIALIZE (FACTORY RESET)
FUNCTION
NTSC Channel (Main, Sub)
INPUT MODE
SLEEP TIMER
HELP MODE
MULTI WINDOW MODE
PIP Mode
Freeze Mode
SET UP
MENU LANGUAGE
PLUG & PLAY
ANTENNA/CABLE
CHANNEL MEMORY
EDIT CHANNEL MEMORY
CLOCK SET
MAGIC FOCUS
PICTURE FORMATS
ASPECT STYLE
V. POSITION
COMPOSITE COLOR TYPE
VIDEO DISPLAY
CUSTOMIZE
NAME THE CHANNELS
NAME THE INPUTS
FAVORITE CHANNELS
PARENTAL LOCKS
PROGRAM TIMER
CAPTION / DISPLAY
CLOSED CAPTION
CCD DISPLAY
CCD MODE
CCD CHANNEL
MENU BACKGROUND
VIDEO
CONTRAST
BRIGHTNESS
COLOR
TINT
SHARPNESS
ADVANCED SETTINGS
PERFECT PICTURE
AUTO COLOR
NOISE REDUCTION
VELOCITY MODULATION
BLACK LEVEL EXPANSION
COLOR TEMPERATURE
INITIAL DATA/CONDITION
03 CH
Antenna A
Not Registered
Off
Off
Single (Bottom Right)
Single (Bottom Right)
English
—
Antenna
2 ~ 13 CH
-Not Registered
-Aspect 1
0
SDTV/HD
1080i
Not Registered
Not Registered
Not Registered
Not Registered
Not Registered
Not Registered
Off
C.C.
Channel 1
Shaded
100%
50%
50%
Center
50%
Off
On
Off
On
On
Cool
PAGE 01-18
DP-1X FACTORY RESET CONDITION
HITACHI USER CONTROL INITIALIZE (FACTORY RESET)
AUDIO
BASS
TREBLE
BALANCE
ADVANCED SETTINGS
MTS Mode
INTERNAL SPEAKERS
AUTO NOISE CANCEL
LOUDNESS
PERFECT VOLUME
DYNAMIC BASS (DP17 Only)
THEATER
THEATER MODE
SURROUND
SRS
BBE
SURROUND (DP16 Only)
TRUSURROUND/SRS/Off
SURROUND (DP17 Only)
OFF/STADIUM/ROCK ARENA/JAZZ
INPUT SOURCE (DP17 Only)
VID 4
VID 5
LISTENING POSITION
LISTENING MODE
SPEAKER SET UP (DP17 Only)
FRONT L/R
SURROUND
SUB WOOFER
INITIAL DATA/CONDITION
63%
50%
Center
Stereo
On
Off
Off
Off
On
Sports
On
Off
TruSurround
Standard
Analog
Optical
Coaxial
Mid
Standard
Internal
Yes
Yes
PAGE 01-19
48
37
80
80
80
12
00
Press EXIT key
Select SERVICE
and press E key
Only adjust
in cool mode.
Press EXIT key
Select SERVICE
and press E key
CH U/D, INPUT
*: Adjustable data
others: Fixed data (be careful not to change)
MENU G H
SERVICE
SUB BRT
WHITE BAL
R DRV (COOL)
B DRV (COOL)
R CUTOFF (COOL)
G CUTOFF (COOL)
B CUTOFF (COOL)
H POSITION
V POSITION
FACT RESET
ADJUST MODE
3F
3F
80
80
80
3F
3F
CH U/D, INPUT
Only adjust
in cool mode.
XXXXXXXX
ADJUST MODE
SERVICE
SUB BRT*
WHITE BAL
R DRV (COOL)*
B DRV (COOL)*
R CUTOFF (COOL)*
G CUTOFF (COOL)*
B CUTOFF (COOL)*
H POSITION*
V POSITION*
FACT RESET
A
POWER + INPUT
MENU
SERVICE
SUB BRT
WHITE BAL
R DRV (COOL)
B DRV (COOL)
R CUTOFF (COOL)
G CUTOFF (COOL)
B CUTOFF (COOL)
H POSITION
V POSITION
FACT RESET
B CUT 3F
G CUT 3F
R CUT 3F
G DRV 3F
R DRV 3F
(OSD OFF)
CUT OFF ADJUST MODE
MENU
ADJUST MODE
3F
3F
80
80
80
3F
3F
Only adjust
in cool mode.
Press F E to adjust
SUB BRIGHT
ADJ. MODE
BRIGHTNESS 80
VIDEO SETTINGS
(1) CONTRAST : MAX
(2) COLOR,TINT,SHARP,BRIGHT:CENER
(3) COLOR TEMP : COOL
ADJUST
(1) Press G H to select the G DRV.,
R DRV., R CUT, G CUT, B CUT.
(Initial position G/B DRV). G/B
DRV, B/R DRV select by the DR R
and DR BG.
(2) Press F E to adjust.
WHITE BALANCE
ADJ. MODE
VIDEO SETTINGS
(1) CONTRAST : MIN
(2) COLOR : MIN
Press EXIT key
Select SERVICE
and press E key
CH U/D, INPUT
1. I2C Parameter List
(1) Adjust Mode OSD
Press POWER + INPUT
of control panel.
PAGE 01-20
PAGE 01-21
Other Mode
ADJUST MODE
SERVICE
SUB BRT*
WHITE BAL*
G DRV (COOL)*
R DRV (COOL)*
R CUTOFF (COOL)*
G CUTOFF (COOL)*
B CUTOFF (COOL)*
H POSI H*
47 VD-POS (FC)H*
FACT RESET
ADJUST MODE
SERVICE
SUB BRT*
WHITE BAL*
G DRV (COOL)*
R DRV (COOL)*
R CUTOFF (COOL)*
G CUTOFF (COOL)*
B CUTOFF (COOL)*
H POSI (V/P)*
47 VD-POS (FC)*
FACT RESET
3F
3F
80
80
80
3F
3F
3F
3F
80
80
80
3F
3F
48
4F
80
80
80
3F
3F
3F
3F
80
80
80
3F
3F
1080i throuth mode
ADJUST MODE
SERVICE
SUB BRT*
WHITE BAL*
G DRV (COOL)*
R DRV (COOL)*
R CUTOFF (COOL)*
G CUTOFF (COOL)*
B CUTOFF (COOL)*
H POSI*
47 VD-POS (FC)*
FACT RESET
MENU GH
SELECT
ADJUST MODE
SERVICE
SUB BRT*
WHITE BAL*
G DRV (COOL)*
R DRV (COOL)*
R CUTOFF (COOL)*
G CUTOFF (COOL)*
B CUTOFF (COOL)*
H POSI (V/P)*
47 VD-POS (FC)*
FACT RESET
VD Position Adj Mode
Press F E to adjust
SELECT
CH U/D, INPUT
SELECT
Only adjust
in cool mode.
CH U/D, INPUT
CH U/D, INPUT
SELECT
CH U/D, INPUT
3F
3F
80
80
80
3F
3F
4E
58
80
80
80
3F
3F
Other Mode
ADJUST MODE
SERVICE
SUB BRT*
WHITE BAL*
G DRV (COOL)*
R DRV (COOL)*
R CUTOFF (COOL)*
G CUTOFF (COOL)*
B CUTOFF (COOL)*
H POSI H*
47 VD-POS (FC)H*
FACT RESET
ADJUST MODE
SERVICE
SUB BRT*
WHITE BAL*
G DRV (COOL)*
R DRV (COOL)*
R CUTOFF (COOL)*
G CUTOFF (COOL)*
B CUTOFF (COOL)*
H POSI (V/P)*
47 VD-POS (FC)*
FACT RESET
3F
3F
80
80
80
3F
3F
1080i throuth mode
ADJUST MODE
SERVICE
SUB BRT*
WHITE BAL*
G DRV (COOL)*
R DRV (COOL)*
R CUTOFF (COOL)*
G CUTOFF (COOL)*
B CUTOFF (COOL)*
H POSI*
47 VD-POS (FC)*
FACT RESET
CH U/D, INPUT
WARM, NTSC, STD ADJ MODE
1. Press G H to select the G DRV or R DRV.
2. Press select to change the COOLRWARMR
NTSCRCOOL mode. Adjust on each mode,
but cannot adjust on the COOL mode.
3. WARM and NTSC mode data is offset data
based on the COOL mode data.
4. Do not adjust WHITE BALANCE in WARM or
NTSC mode. Adjust in COOL mode only.
H Position Adj Mode
Press F E to adjust
SELECT
CH U/D, INPUT
CH U/D, INPUT
PAGE 01-22
GH
MENU GH
ADJUST MODE
TA1270-M
TINT (TV)
TOFF0 (TV)
TOFQ (TV)
SUB CNT
SUB CLR
YUVSEL RESET
3DYC RESET
1HV/C RESET
FLEX RESET
2HV/P RESET
BBE RESET
MEMORY INIT
I2COPEN
ADJUST MODE
MENU
3C
00
00
0F
0F
NORMAL
mode
PIP
ON/OFF
key
SINGLE
mode
(NTSC only)
PIP
Mode
key
ADJUST MODE
TA1270-S
TINT (TV)
TOFF0 (TV)
TOFQ (TV)
SUB CNT
SUB CLR
MENU GH
Press G H to select.
Press E to set to the
initial or factory
settings.
SPLIT/SINGLE
MODE
+
PiP CH
CH U/D, INPUT
}
}
Press G H to select.
Press E to set to the
initial data of each
device.
CH U/D, INPUT
PIP Mode key
SPLIT
mode
3C
00
00
0F
0F
PIP
Mode
key
ADJUST MODE
CXA2151
MAT OUT
H WIDTH
V TC
HSEP
HS MASK
MENU GH
SURF
mode
(ANT A only)
Item
Device
YUVSEL CXA2141Q
3DYC
uPD64082
1HV/C
TA1270BF
FLEX FLEX CONT.
2HV/P
TA1316AN
BBE
NJW1132
0
0
1
0
1
Same data of
Main and Sub
MENU GH
CH U/D, INPUT
ADJUST MODE
CXA2151
MACRO
GAIN SEL
CBGAIN
CRGAIN
YGAIN
MENU GH
ADJUST MODE
UPD64082
DYGA
DCGA
VAPGA
VAPIN
YHCOR
1
0
7
7
7
CH U/D, INPUT
09
06
00
0B
00
CH U/D, INPUT
PAGE 01-23
GH
NTSC
00
00
00
02
00
0B
12
00
07
GH
NTSC
0F
00
00
00
0A
00
02
00
MENU
GH
SELECT
CH U/D, INPUT
NTSC/SINGLE/SURF/STROBE mode
FLEX CONT
94 CH-ENH
68 YV-CLP
84 YH-CLP
97 YV-NLP
98 YH-NLP
83 YH-FRQ
91 CH-FRQ
70 YV-LTI
MENU
SELECT
CH U/D, INPUT
FLEX CONT
39 HHPF1
41 V-CRG
42 H-CRG
43 V-ENH
44 H-ENH
96 YVHENH
100 CVHENH
71 YV-ENH
87 YH-ENH
MENU
FLEX CONT
94 CH-ENH
68 YV-CLP
84 YH-CLP
97 YV-NLP
98 YH-NLP
83 YH-FRQ
91 CH-FRQ
70 YV-LT1
MENU
FLEX CONT
39 HHPF1
41 V-CRG
42 H-CRG
43 V-ENH
44 H-ENH
96 YVHENH
100 CVHENH
71 YV-ENH
87 YH-ENH
480i mode
480i
0F
00
00
00
0A
00
02
00
GH
480i mode
480i
00
00
00
02
00
0B
12
00
07
SELECT
SELECT
FLEX CONT
94 CH-ENH
68 YV-CLP
84 YH-CLP
97 YV-NLP
98 YH-NLP
83 YH-FRQ
91 CH-FRQ
70 YV-LT1
MENU
FLEX CONT
39 HHPF1
41 V-CRG
42 H-CRG
43 V-ENH
44 H-ENH
96 YVHENH
100 CVHENH
71 YV-ENH
87 YH-ENH
GH
480P mode
480P
0F
00
00
00
0A
00
02
00
480P mode
480P
00
00
00
02
00
0B
12
00
07
SELECT
SELECT
FLEX CONT
94 CH-ENH
68 YV-CLP
84 YH-CLP
97 YV-NLP
98 YH-NLP
83 YH-FRQ
91 CH-FRQ
70 YV-LT1
MENU
FLEX CONT
39 HHPF1
41 V-CRG
42 H-CRG
43 V-ENH
44 H-ENH
96 YVHENH
100 CVHENH
71 YV-ENH
87 YH-ENH
1080i mode
1080i
0F
00
00
00
00
00
02
00
GH
1080i mode
1080i
00
00
00
00
00
00
12
00
00
SELECT
SELECT
FLEX CONT
94 CH-ENH
68 YV-CLP
84 YH-CLP
97 YV-NLP
98 YH-NLP
83 YH-FRQ
91 CH-FRQ
70 YV-LT1
MENU
FLEX CONT
39 HHPF1
41 V-CRG
42 H-CRG
43 V-ENH
44 H-ENH
96 YVHENH
100 CVHENH
71 YV-ENH
87 YH-ENH
720P mode
720P
0F
00
00
00
0A
00
02
00
GH
720P mode
720P
00
00
00
02
00
0B
12
00
07
SELECT
SELECT
MENU
FLEX CONT
94 CH-ENH
68 YV-CLP
84 YH-CLP
97 YV-NLP
98 YH-NLP
83 YH-FRQ
91 CH-FRQ
70 YV-LT1
SELECT
SELECT
FLEX CONT
39 HHPF1
41 V-CRG
42 H-CRG
43 V-ENH
44 H-ENH
96 YVHENH
100 CVHENH
71 YV-ENH
87 YH-ENH
SPLIT mode
SPLIT
0F
00
00
00
0A
00
02
00
GH
SPLIT mode
SPLIT
00
00
00
02
00
0B
12
00
07
PAGE 01-24
GH
NTSC
01
01
00
04
04
00
02
0F
00
GH
NTSC
01
00
00
60
07
07
0F
0F
1F
3F
GH
FLEX CONT
48 VBLK-T
49 VBLK-B
51 HBLK-R
52 HBLK-L
35 FRMTOP
36 FRMBTM
37 FRMRGT
38 FRMLFT
MENU
7F
7F
88
7A
07
07
07
07
MENU G H
SELECT
CH U/D, INPUT
SELECT
CH U/D, INPUT
FLEX CONT
65 YNRRDC
74 CNRRDC
89 CNR-0
27 FRMBRT
11 MVW-PH
18 SVW-PH
14 MHS-HP
21 SHS-HP
23 V-POS
50 HD-POS
MENU
SELECT
CH U/D, INPUT
FLEX CONT
86 YH-LTI
93 CH-CTI
95 Y-CRG
64 YNR-IN
73 CNR-IN
80 YNRPAS
88 CNRPAS
40 READ-F
55 LINE-I
MENU
MENU G H
FLEX CONT
48 VBLK-T
49 VBLK-B
51 HBLK-R
52 HBLK-L
35 FRMTOP
36 FRMBTM
37 FRMRGT
38 FRMLFT
FLEX CONT
65 YNRRDC
74 CNRRDC
89 CNR-0
27 FRMBRT
11 MVW-PH
18 SVW-PH
14 MHS-HP
21 SHS-HP
23 V-POS
50 HD-POS
MENU
FLEX CONT
86 YH-LTI
93 CH-CTI
95 Y-CRG
64 YNR-IN
73 CNR-IN
80 YNRPAS
88 CNRPAS
40 READ-F
55 LINE-I
1080i pass
1080i PASS
7F
7F
7F
7F
07
07
07
07
480i mode
480i
01
00
00
60
07
07
0F
0F
1F
3F
GH
480i mode
480i
01
01
00
04
04
00
02
0F
00
SELECT
SELECT
MENU
FLEX CONT
120 TV/CINE
121 T/C DET
122 T/C UNL
123 T/C LCK
126 T/C ARE
127 T/C CBR
128 T/C YBR
129 IPMODE
130 C-INT
FLEX CONT
65 YNRRDC
74 CNRRDC
89 CNR-0
27 FRMBRT
11 MVW-PH
18 SVW-PH
14 MHS-HP
21 SHS-HP
23 V-POS
50 HD-POS
MENU
FLEX CONT
86 YH-LTI
93 CH-CTI
95 Y-CRG
64 YNR-IN
73 CNR-IN
80 YNRPAS
88 CNRPAS
40 READ-F
55 LINE-I
01
07
01
03
05
07
07
00
00
SELECT
SELECT
CH U/D, INPUT
480P mode
480P
01
00
00
60
05
05
0F
0F
1F
3F
GH
GH
480P mode
480P
01
01
00
04
04
00
02
0F
00
FLEX CONT
65 YNRRDC
74 CNRRDC
89 CNR-0
27 FRMBRT
11 MVW-PH
18 SVW-PH
14 MHS-HP
21 SHS-HP
23 V-POS
50 HD-POS
MENU
FLEX CONT
86 YH-LTI
93 CH-CTI
95 Y-CRG
64 YNR-IN
73 CNR-IN
80 YNRPAS
88 CNRPAS
40 READ-F
55 LINE-I
1080i mode
1080i
00
00
00
60
04
04
0F
0F
1F
3F
GH
1080i mode
1080i
00
01
00
04
04
00
02
0F
00
SELECT
SELECT
FLEX CONT
65 YNRRDC
74 CNRRDC
89 CNR-0
27 FRMBRT
11 MVW-PH
18 SVW-PH
14 MHS-HP
21 SHS-HP
23 V-POS
50 HD-POS
MENU
FLEX CONT
86 YH-LTI
93 CH-CTI
95 Y-CRG
64 YNR-IN
73 CNR-IN
80 YNRPAS
88 CNRPAS
40 READ-F
55 LINE-I
720P mode
720P
00
00
00
60
06
06
0F
0F
1F
3F
GH
720P mode
720P
01
01
00
04
04
00
02
0F
00
SELECT
SELECT
MENU
FLEX CONT
65 YNRRDC
74 CNRRDC
89 CNR-0
27 FRMBRT
11 MVW-PH
18 SVW-PH
14 MHS-HP
21 SHS-HP
23 V-POS
50 HD-POS
SELECT
SELECT
FLEX CONT
86 YH-LTI
93 CH-CTI
95 Y-CRG
64 YNR-IN
73 CNR-IN
80 YNRPAS
88 CNRPAS
40 READ-F
55 LINE-I
SPLIT mode
SPLIT
01
00
00
60
----1F
3F
GH
SPLIT mode
SPLIT
01
01
00
04
04
00
02
-00
PAGE 01-25
GH
NTSC
30
01
01
00
03
MENU
TA1316
COLOR
TINT
R-Y PH
R/B GA
G-Y PH
G/B GA
MENU
GH
GH
}
NTSC mode
NTSC
54
3B
02
0C
02
00
FLEX CONT
SHARP
APACON
CLT
SRT GA
SRT FQ
TA1316
COLOR
TINT
R-Y PH
R/B GA
G-Y PH
G/B GA
Center Adjust
SELECT
CH U/D, INPUT
SELECT
CH U/D, INPUT
FLEX CONT
SHARP
APACON
CLT
SRT GA
SRT FQ
MENU
SDTV mode
SDTV
54
3D
02
0D
05
00
480i/480P mode
480i/480P
28
01
01
00
03
TA1316
COLOR
TINT
R-Y PH
R/B GA
G-Y PH
G/B GA
SELECT
SELECT
SELECT
FLEX CONT
SHARP
APACON
CLT
SRT GA
SRT FQ
HDTV mode
HDTV
4F
41
00
0A
05
00
720P/1080i mode
720P/1080i
1C
00
01
00
03
SELECT
FLEX CONT
SHARP
APACON
CLT
SRT GA
SRT FQ
1080i pass mode
1080i PASS
1C
00
01
00
03
SELECT
SELECT
MENU
FLEX CONT
SHARP
APACON
CLT
SRT GA
SRT FQ
GH
SPLIT mode
SPLIT
28
01
01
00
03
SELECT
PAGE 01-26
00
01
00
1F
0F
00
00
00
00
04
00
00
00
01
00
TA1316
DC PNT
DC RAT
DC LMT
BSP
APL/BS
BLC
BDL
BS ARE
S TRK
GH
TA1316
CLP PHS
SCP SW
HBP PHS
VBLK PHS
PRES PH1
PRES PH2
MENU
}
MENU
GH
CH U/D, INPUT
MENU
GH
CH U/D, INPUT
NJW1132
BBE HIGH
BBE LOW
V CHIP RATING
POLLING
TIMEOUT
STATUS
AFC/CLOCK TEST
OSD POSITION
TA1316
RGB ACL
RGB BRT
RGB CNT
OSD ACL
OSD BRT
OSD CNT
R REF
G/B REF
SUB CNT
0F
05
02
07
07
01
3F
7F
00
02
03
01
01
15
}
Press EXIT key
Select OSD
POSI and
press E key
32ms*POLLING DATA
FROM RATING OFF
DETECTIVE COUNT
MENU
GH
MENU
GH
H POSI
V POSI
TA1316
DCRR SW
COLORG
YC GA1
YC GA2
VSM PH
VSM GA
00
00
00
00
03
07
OE
00
Input4
Input5
TEST
CXA2151 (MAIN)
H
V
CXA2151 READ MODE
H COUNT DATA
V COUNT DATA
MENU
GH
TA1316
YOUTG
WPL AP
Y DTL
WP PNT
WP GA
HI BRT
WPS
CDE
00
00
**
**
00
00
10
07
00
00
01
00
MENU
GH
MENU
GH
MENU
GH
A
00
07
00
07
07
05
00
00
00
GH
SELF-DIAGNOSIS
RESET START
REMOTE POWER
MATRIX POWER
REMOTE MEM INIT
MATRIX MEM INIT
ADJUST MEM INIT
ADJUST FAC RESET
EEP READ ERROR
EEP WRITE ERROR
LAST EVENT
CCD SLICE
CCD LPF
MENU
TA1316
WPL LE
WPL F0
DABL PN
DABL GA
ABL PN
ABL GA
DYNC PNT
DYNC GA
STAT GA
00
00
00
00
00
00
00
00
00
0000
13
03
POWER SUPPLY
INFORMATION
DP-1X CHASSIS
SECTION 2
DP-1X POWER SUPPLY ON / OFF (STAND-BY) OPERATION EXPLANATION
Power On and Off Diagram explanation: (See DP-1X Power On/Off Diagrams for details)
This power supply runs all the time when the AC is applied. The use of the power supply creating Stand By Voltage supplies eliminates the need for a Stand-By transformer. The following explanation will describe the Turning
ON and OFF of the projection television.
The Microprocessor I001 generates the ON-OFF control signal from pin (53). The logic states of this pin are
High = On and Low = Off. When the set is turned On, the high from pin (53) is routed to the Relay Drivers Q003
and Q004. This turns on Q003 and it’s collector goes low which turns off Q004 and it’s collector goes High.
This On/Off from the Relay Drivers will perform the following :
• Turns on the Shut Down “Power Shorted” detection circuit, Q917 and Q919.
• Turns on the Relay S901 through Q914 providing AC to the Deflection Power Supply on the Power/
Deflection PWB.
SOME SHUT-DOWN DETECTION CIRCUITS SHUT OFF DURING STAND-BY: (See Figure 1)
During Stand-By, some of the secondary voltages produced are turned off, except the STBY voltages after regulation. This could cause a potential problem with the Short Detection circuits for shutdown. To avoid accidental
shut down, Q917 also controls the activity of Q919. During Stand-By, the output from the Microprocessor On/
Off pin (53) is Low. This Low is inverted by Q003 and inverted again by Q004 and this Low is routed to the
base of Q917 turning it Off. This turns off Q917 because it’s base is pulled Low through D927. This action turns
off Q917. When Q917 is off, it doesn’t supply emitter voltage to the Emitter of Q919. The base of Q919 is connected to 3 Low Detection inputs from [PROTECT 1], (See the Sub Power Supply Shut Down Circuit explanation and diagram for further details).
PROTECT 1 monitors IC02, 3 & 4 on the Signal PWB. IC02 produces 5.5V, IC03 produces 3.3V, and IC04 produces 2.5V.
NOTE: PROTECT 1 will never go below 2.2 V, unless the 2.2V line is shorted.
NOTE: If the 5.5V or the 3.3V regulator OPENS, the set will not go into shut down, they must have a short to
produce a shut down input on PROTECT 1.
The set will shut down after the Screens go excessively bright, but this is from the 115V over current sensor, not
PROTECT 1.
When the power supply is in Stand By, the Short Detection circuit could activate. By turning off Q919, no accidental shut down operation can occur.
Figure 1
D927
I001 Micro
Q003
Power
53
On/Off
On = Lo
Off = Hi
R958
PQS1
2
Power/Deflection PWB
On = Lo
Off = Hi
C942
R957
Q917
Q004
Stby +5V
R959
3 Shutdown Inputs,
Active Low
Q919
D942
To Base of
Q918 OVP
C944
Protect 1
AT POWER ON, THE DEFLECTION CIRCUIT IS ENERGIZED: (See Figure 2)
When the Microprocessor outputs a High from pin 53 when power is turned ON, the high is inverted by Q003 to
a LOW. This low is inverted by Q004 to a HIGH and routed through the PQS1 connector pin 2. This high is
routed through R954, R951, D926 to the base of Q914. This transistor turns ON and it’s collector goes LOW.
PAGE 02-01
DP-1X POWER SUPPLY ON / OFF (STAND-BY) OPERATION EXPLANATION
Continued From Previous Page
This low is the Ground return for the Relay S901. The B+ for the primary of the relay is the SBY +5V generated
by the switching transformer pin 15, rectified by D920, filtered by C935, L915, and C936. (See DP-1X Power
On/Off Diagrams for details).
When the relay S901 turns on, the contacts close and AC is routed to the Deflection circuit power supply and the
Deflection Power Supply is Energized.
PQD1
AC In
SBY+5V
AC for Def.
Power Supply
Power / Deflection PWB
1
2
2
3
1
4
D925
S-901 Def. Power
Supply Relay R953
I001
Microprocessor
Power
On/Off
ON = Hi
OFF = Lo
53
PQS1
Q003 Q004
D926
2
Figure 2
R954
On
Off
Q914
On
R951
C940
R952
Off
DEFLECTION HORIZONTAL DRIVE CIRCUIT ACTIVATION: (IC01 Rainforest IC)
When the set has AC applied, one of the switch pulses generated on the Sub Power PWB is the +11V pulse from
pin 10 of the Switching Transformer I901. This +11V pulse is rectified by D919 and filtered by C929. This
+11V DC voltage is then routed to the +9V regulator I906 pin 5. When the set is turned ON, the Horizontal
Drive Power supply I906 is activated. This happens when pin 2 of I906 goes high with the Power On/Off control
line from PQS1 pin 2. The +9V is output via pin 3 to the PQD2 connector pin 5. From here the +9V (HVCC) is
routed through the Deflection PWB to the Signal PWB via PSD3 connector pin 11, through the coil LC03 to pin
19 of IC01 the Rainforest IC. When this voltage is applied to pin 19, the horizontal circuit inside the Rainforest
IC is activated and a horizontal drive signal is output from pin 26. This H. Drive signal is routed through the
PSD2 connector pin 5 to the base of the horizontal drive transistor Q709 on the Deflection PWB. The collector
of Q709 produces a drive signal routed through the drive transformer T702 and output from pin 4 to the base of
the Deflection Horizontal Output Transistor Q777 to begin driving the deflection circuit which in turn, activates
the High Voltage circuit.
Two transistors monitor the SW +9V line, Q707 and Q708. When the set is turned off, the H. Drive signal from
IC01 could stop too soon. If this were to happen, the Horizontal output transistor Q777 would be damaged. To
prevent this, if the SW +9V line drops, Q707 senses this because it’s base voltage drops. The base of Q708 rises
and turns on, grounding the output from the H. Drive Transistor Q709.
Q777 PROTECTION:
PAGE 02-02
PAGE 02-03
3
C008
D026
D025
SBY+5V
R0A6
DC11
Signal PWB
3.9V
3.3V
Q025
1
ON = Hi
OFF = Lo
Q003 Q004
53
I002
2
Reset
R009
C061
C060
3.3V
L003
54
Power
Reset
On/Off
STBY
3.3V
3.3V
61
VDD
3.3V
Microprocessor
I001
6
2
On
L915
+28V
11
10
D710
Q707
R733 R734
+11V
T901
Q708
R748
R730
4
1
R737
C707
8
5
1
4
3
C708
R972
5
PQD2
R736
Q709
5
PSD2
11
PSD3
Q915
R951
C940
D926
H Drive
CC18
LC03
Signal PWB
26
Hoz. Out
IC01
H Drive IC
RC46
RC36
19
Def.B+
11
PSD3
Sub Power PWB
11 Shut Down
Inputs from
Deflection
PROTECT
C941
On
To Base of
Q918 (OVP)
AC3 +6V
Deflection
Power PWB
D709
R735
C940
Off
R952
R956
D942
SW+9.3V
BOTH OFF IN STBY
D931
Q919
R961
To Base of
Deflection Horz.
Output Q777
I906
SW+9V
Reg
T702
5
2
R973
Protect 1
C944
C942
R955
Q916
Off
Q914
On
SBY+5V
R954
D925
D940 D941
R959
Q917
R958
D927
OV in STBY
S-901 Def. Power
Supply Relay
3
2
R958
AC In
C929
On
+5V
T901
D919
Off
11
12
1
2
PQD1
Power/
Deflection PWB
AC for Def.
Power Supply
SBY+5V
C936
Off
PQS1
DP-1X SERIES "POWER ON & OFF" DIAGRAM
PAGE 02-04
To
Deflection Power Supply
Protection Block
Line Filter
L905
Switching
Control
I901
Fuse
F902 2A
Rectifier
D901
Noise Filter
L901, L902
FUSE
F901 1.6A
AC Input
AC Plug
Cold
RELAY
S901
AC Clock
I904
Protect
I903
Feedback
I902
T901
Switching
Transformer
Live
AC Clock
60Hz
Relay
S902
Off
On
DEF. Protect
On / Off
Protect On/Off
Switch: Q915Q916
Voltage
Control
5V
D924
Rectifier
+5V, D920
Rectifier
+11V, D919
Rectifier
+29V : D910
Off
On
SBY +5V
SW
+9.3V
SW
+9V
SW
+7V
Audio
+28V
= GREEN L.E.D.
ZD
D935 : >7V
Audio SRS
Over Voltage
Detector
TV Main ON/OFF
ON = LO / OFF = Hi
TV ON/OFF
Switch Q914
Protector
Q918
Regulator
SW +9.3V : I906
Regulator
SW +9V : D947
D912 : +29
DP-1X SUB POWER SUPPLY PROTECTION DIAGRAM
(SIGNAL) LOW VOLTAGE
DP-1X SUB POWER SUPPLY SHUT DOWN CIRCUIT DESCRIPTION
(See Diagram on page 02-08)
The sub power supply in the DP-1X chassis works very similar to the previous models, with some very significant
exceptions. The use of the power supply creating the SBY+11V supply eliminates the need for a Stand-By
transformer. The following explanation will describe the Sub Power Supply Shut Down Circuit.
Power Supply Shutdown Explanation
This chassis utilizes I901 as the Osc.\Driver \Switch for the sub power supply, just as the previous chassis have
done. The Shutdown circuit, (cold ground side detection), removes I901 B+ via the following circuit, I903 (the
Photo Coupler), which isolates the Hot ground from the Cold ground and couples the Shutdown signal to the Hot
Ground side, Q902 on the hot ground side and Q901 which latches Q902 on. When Q902 is on, it removes B+
from pin (4) of I901 (the Vin pin).
The Power Supply utilizes a Shutdown circuit that can trigger Q902 from 5 input sources. (1 of these Short Detection circuits are not operational in Stand By mode). I903 is activated by a Low being applied to pin 2, which forward biases the internal LED. The light from this internal LED is then coupled to the receiver transistor. The receiver transistor turns On and output a High from pin 3. This high is routed to the base of Q902 turning it On,
which grounds out the Vin at pin (4) of I901, disabling the power supply.
All of the Power Supply Shutdown circuitry can be broken down into the following groups;
• Voltage Missing Detection
• Voltage Too High Detection
In the following explanation, the Shutdown circuits will be grouped. This will assist the Service Technician with
trouble shooting the Chassis, by understanding these circuits and having the associated circuit routs, the
technician can then “Divide and Conquer”.
Voltage Loss or Excessive Load Detection
(See Figure 1)
The second most common circuit used is the Voltage Loss Detection circuit. This is a very simple circuit that
detects a loss of a particular power supply and supplies a Pull-Down path for the base of a PNP transistor.
This circuit consist of a diode connected by its cathode to a positive B+ power supply. Under normal conditions,
the diode is reversed biases, which keeps the base of Q1 pulled up, forcing it OFF. However, if there is a short or
excessive load on the B+ line, the diode in effect will have a LOW on its cathode, turning it ON. This will allow a
current path for the base bias of Q1, which will turn it ON and generates a Shutdown Signal.
Voltage
Loss
Detector
Any Positive
B+ Supply
B+
Q1
Figure 1
B+ Voltage Too High Detection.
(See Figure 2)
In this circuit, a Zener diode is connected to a voltage
divider or in some cases, directly to a B+ power supply. If
the B+ voltage increases, the voltage at the voltage divider
or the cathode of the zener diode will rise. If it gets to a
predetermined level, the zener will fire. This action
creates a Shutdown Signal.
Shut-Down
Signal
Voltage Too High
Detector
Shut-Down Signal
Any Positive
B+ Supply
Figure 2
PAGE 02-05
DP-1X SHUT DOWN CIRCUIT:
There are a total of 6 individual Shutdown inputs. In addition, there are 3 Hot Ground side Shutdown inputs that
are specifically detected by the main power driver IC I901. These sensors circuits protect I901 from excessive
current or over voltage.
HOT GROUND SIDE SHUT DOWN SENSING CIRCUITS. (INTERNAL TO I901).
LATCHED SHUT DOWN MONITORS: (AC must be removed to recover).
1. Pin 4 is monitored for Over Voltage at pin 4 of I901.
2. I901 itself is monitored for Excessive Heat. This block is labeled T.P.O. (Thermal Protection Overload).
RECOVERING SHUT DOWN INPUT: (Driver IC will recover on it’s own when trouble is removed.)
3. Pin 5 besides being used as a regulation input, is also monitoring the low ohm resistors, R910, R911, and
R912. If these resistors have an excessive current condition caused by monitoring the current through the internal Switch MOS FET, the voltage will rise and pin 5 has an internal Over Voltage detection op-amp. If this
voltage rises enough to trigger this op-amp, the IC will stop producing a drive signal.
COLD GROUND SIDE SHUT DOWN SENSING CIRCUITS. (AC must be removed to recover).
All of the Cold Ground side Shutdown detection circuits can be categorized by the two previously described
circuits
Voltage Loss Detection
• Shorted STBY +3.3V (Q025) on Signal PWB through PROTECT 2 to (D938) on Sub Power Supply PWB
• Shorted SW+2.5V (IC04) on Signal PWB through PROTECT 1 to (D940) on Sub Power Supply PWB
• Shorted SW+3.3V (IC03) on Signal PWB through PROTECT 1 to (D940) on Sub Power Supply PWB
• Shorted SW +5V (IC02) on Signal PWB through PROTECT 1 to (D940) on Sub Power Supply PWB
Voltage Too High Detection
• STBY +9V monitored by (D933, D934)
• STBY +5V monitored by (D935, D936)
If any one of these circuits activate the power supply will STOP, and create a Power Supply Shutdown Condition.
SOME SHUTDOWN CIRCUITS ARE DEFEATED IN STANDBY MODE. (Set Off).
As indicated in the Power On/Off circuit diagram explanation, 3 of the 6 shut down inputs are not active when the
set is in standby.
• Shorted SW +2.5V (IC04) on Signal PWB through Protect 1 to (D940) on Sub Power Supply PWB
• Shorted SW +3.3V (IC03) on Signal PWB through Protect 1 to (D940) on Sub Power Supply PWB
• Shorted SW +5V (IC02) on Signal PWB through Protect 1 to (D940) on Sub Power Supply PWB
These SW voltage loss sensing circuits are defeated because the Shorted SW (Switched) power supply detection
circuits are turned off in standby to prevent faults triggering of the shutdown circuit.
Q919 supplies the high for shutdown if any of the voltage loss circuits become activated. Q919 requires emitter
voltage to operated. Emitter voltage is supplied from the emitter of Q917. Q917s base is connected to the power
on/off line. When the set is not on or turned off, the power on/off line goes Low. This Low pulls the cathode of
D927 low, removing the base voltage of Q917 turning it OFF. This removes the emitter voltage from Q919 and
this circuit can not function.
PAGE 02-06
SHUT DOWN CIRCUIT:
Shut down occurs when the shutdown Photo Coupler I903 is activated by pulling pin 2 low.
When I903 is activated by pulling pin 2 low it give a ground path for the emitter of the LED inside I903. The
light produced by turning on this LED turns on the internal photo receiver and generates a high out of pin (3).
This high is routed to the base of Q902 turning it on. This grounds pin (4) of I901 removing Vin and the power
supply stops working.
The reason for the photo sensor I903 is to isolate hot and cold ground.
B+ GENERATION FOR THE SUB POWER SUPPLY DRIVER IC:
Vcc for the Driver IC is first generated by the AC input. This voltage is called Start Up Voltage. I901 requires
16V DC to operate normal. However, it will begin operation at 6.8V DC on pin (4) of I901.
When AC is applied, AC is routed through the main fuse F901 (a 6 Amp fuse), then through the Line filters L901,
and L902 to prevent any internal high frequency radiation for radiating back into the AC power line. After passing the filters it arrives at the main full wave bridge rectifier D901 where it is converted to Raw 150V DC voltage
to be supplied to the power supply switching transformer T901 pin (1).
However, one leg of the AC is routed to a half wave rectifier D906 where it is rectified, routed through R903 and
R904 (both a 22K ohm resistor), filtered by C910, clamped by a 30V Zener D902 and made available to pin (4)
of I901 as start up voltage. When this voltage reaches 6.8Vdc, the internal Regulator of I901 is turned On and
begins the operation of I901.
When the power supply begins to operate by turning on and off the internal Switch MOS FET, the Raw 150V DC
routed through T901, in on pin 1 (Drain) and out on pin 2 which is the Source. The Source of the internal Switch
MOS FET is routed out of pin (2) through three low ohm resistors to hot ground. When the internal Switch MOS
FET turns on, it causes the transformer to saturate building up the magnet field. When the internal Switch MOS
FET turns off, the magnet field collapses and the EMF is coupled over to the secondary windings, as well as the
drive windings. The drive windings at pin (5) produce a run voltage pulse which is rectified by D903, filtered by
C909 then routed through R906, filtered again by C908 clamped by D902 and now becomes run voltage (16V)
for I901.
PAGE 02-07
DP-1X SIGNAL POWER SUPPLY (Low Voltage) SHUT-DOWN CIRCUIT
60.2V
D906 R903
R904
T901
16.97V
R906 D903
D902
D920 L915
5 12
AC
R907
C908
16.3V 4 Vin
C910
6
C909
C935
I901
Power IC
D923
R922
4
1
3
2
Stby +9V
R923
Circuit for Protect 1
Sw +5V
D933
R918
Q902
D909
D934
Sw +3.3V
D910
From IC04
R948
I903
On Signal PWB
From IC03
C936
Stby +5V
Q901 C946
From IC02
11
Sw +2.5V
Q918
D939
C945
R925
Sw +5, 3.3 & 2.5V
Signal PWB
STBY +3.3V
PQS1
R0A7
RG49
PQS1
Sw +5, 3.3 & 2.5V
Q919
D940 D941
Protect 1
Pin 4
monitors IC02, 3 & 4
R962
R972
D942
D938
Protect 2
Pin 3
monitors Q025
C943
R961
R959
C944
Stby +5V
S901
Relay
AC
Q917
R958
D925
D927
R954
220
Q914
C942
R957
D926
On/Off
R952
R951
1K
11 Shut Down Inputs
4 from Deflection
7 from Def. Power Supply
PQD2
PROTECT
R960
Pin 1
C941
PQS1
Pin 2
C940
Q915
R955
10K
On
Off
D935
D936
Stby +5V
Q916
R956
Sub Power PWB or
Signal Power PWB
PAGE 02-08
DP-1X LED USED FOR VISUAL TROUBLE SHOOTING DESCRIPTION
SUB POWER SUPPLY VISUAL LED. (See page 02-10 for Circuit Diagram)
DP-15 and DP-14G Chassis has 1 Green LED on Sub Power Supply PWB. (Not the DP-17)
This chassis utilizes 1 Green LED in the power supply cold side.
The power supply operates it two different modes, Standby and Projection On mode.
The LED is lit only in the Power On mode. During Standby with the AC applied and the TV; S-902 is not engaged. This turns off the Audio B+ and the LED does not light.
•
SRS Audio Front 29V Regulator +29V indicated by D912 Color GREEN
LED USAGE:
The Visual LED is very useful in Trouble Shooting. Without removing the back cover, some diagnostics can be
made. With the set ON and by observing the operation of the Green LED, the technician can determine if the Sub
Power Supply is generating Audio B+.
The following will examine how the LED is illuminated.
SRS Audio +29V Regulator indicated by D912.
When the set is turned ON, the relay S-902 engages. This supplies a ground return path for pin (9) of the main
switching transformer. This action allows generation of the pulse from pin (8) of T901.
The SRS Audio +29V supply is generated from pin (8) of T901. This output is rectified by D910 and filtered by
C915. The choke L912 adds further filtration and C917 removes high frequency switching noise. This supply is
routed to the SRS Audio Output IC IJ01 via the connector PAQ1 pin 1 and 2.
This voltage is what illuminates the Green Visual Trouble Shooting LED, D912 when the set is turned ON.
PAGE 02-09
PAGE 02-10
AC
T901
9
8
3
2
D906
R923
D902
R904
C913
D910
Shutdown
Latch
Q901
C908
R903
65V
Osc B+
S-902 Audio Power
Supply Relay
4
1
SW+7V
F903
Q902
Shutdown
Switch
83 ~ 84KHz
I901
Driver/Output IC
4
R932
D912
GREEN L.E.D.
C917
16.3V
Q902
R922
Start Up
C915
L912
Run
R918
3
4
0.0V
16.9V
C909
SRS + 29V
Audio Front
2
1
5V
6 Shut Down Inputs
(Active Low)
I903 Shutdown 4.3V
Photocoupler
I903
STBY
+7V
7.5P/P
From Pin 8 T901
Audio Ground
D903 R907
4
3
2
1
PAQ1
DP-15 and DP-14G CHASSIS L.E.D. (VISUAL TROUBLE DETECTION) DIODES
SIGNAL POWER SUPPLY
(1 Total L.E.D. for visual trouble sensing observation)
DP-17 LED USED FOR VISUAL TROUBLE SHOOTING DESCRIPTION
DP-17 SUB POWER SUPPLY VISUAL LED.
(See Sub Power Supply Shut Down Circuit Diagram on next page)
The DP-17 Chassis has 2 Green LEDs on Sub Power Supply PWB.
The Sub Power Supply operates it two different modes, Standby and Projection On mode.
The GREEN LEDs are lit ONLY in the Power On mode with the AC applied and the TV ON;
• FRONT Audio Front +29V Regulator indicated by D913 Color GREEN
• REAR and CENTER Audio +29V Regulator indicated by D912 Color GREEN
LED USAGE:
The Visual LED is very useful in Trouble Shooting. Without removing the back cover, some
diagnostics can be made. By observing the operation of the Green LED, the technician can determine if the Sub Power Supply is running or not.
The following will examine how the LED is illuminated.
FRONT Audio Front + 29V Regulator indicated by D913 Color GREEN
• The Front Audio +29V supply is generated from pin (10) of T901. This output is rectified by D911 and filtered by C916. The choke L913 adds further filtration and C918
removes high frequency switching noise. This supply is routed to the Front Audio Output IC IJ01 via the connector PAQ2 pins (1) and (2).
REAR and CENTER Audio Front + 29V Regulator indicated by D912 Color GREEN
• The Rear and Center Audio +29V supply is generated from pin (11) of T901. This output
is rectified by D910 and filtered by C915. The choke L912 adds further filtration and C917
removes high frequency switching noise. This supply is routed to the;
• Rear Audio Output IC IS15 via the connector PAQ1 pins (1) and (2) to the Surround
PWB.
• Center Audio Output IC IJ02 via the connector PAQ2 pins (5) and (6) to the Signal PWB.
PAGE 02-11
PAGE 02-12
10
12
11
AC
T901
3
2
Shutdown
Latch
Q902
D902
R923
10K
R922
47ohm
Q902
Shutdown
Switch
C946
Start Up
C915
C917
4
C945
R925
83 ~ 84KHz
Run
0.0V
3
4
C909
I903
STBY
+7V
7.5P/P
4.3V
2
1
5V
From Pin 8 T901
Audio Ground
Audio Ground
AC3 + 29V Front
AC3 + 29V Center
Audio Ground
AC3 + 29V Rear
I903 Shutdown
Photocoupler
D903 R907
1
2
3 Gnd
4 Gnd
PAQ2
5
6
1
2
7 Gnd
8 Gnd
3 Gnd
4 Gnd
PAQ1
16.9V
R918
1.95A
6 Shut Down Inputs
(Active Low)
R906
I901
Driver/Output IC
16.3V
Osc B+
R933
D913
1.30A
R932
D912
GREEN L.E.D.
GREEN L.E.D.
C918
L912
R904
C916
C914
R903
L913
D911
C913
D910
SW+7V
C908
Q901
D906 65V
F909
4
1
S-902 Audio Power
Supply Relay
F903
DP-17 CHASSIS L.E.D. (VISUAL TROUBLE DETECTION) DIODES SIGNAL POWER SUPPLY
(2 Total L.E.D. for visual trouble sensing observation)
PAGE 02-13
IC Power
Monitor
LED (RED) :
DP06
Switching
Control
IP01
Fuse
FP01 : 1.5A
Sub Power Supply
Block
Cold
Feedback
IP02
TP91
Switching
Transformer
Live
D
or
Q
ZD
Over
Voltage
Detector
= Red or Green LED
Short
Circuit
Detector
Voltage Control
+115V: IP03
Rectifier
+115V:DP15
Rectifier
-28V:DP13
Protector
FP08: 10K
Rectifier
220V:DP14
Rectifier
+28V:DP12
Rectifier
+11V:DP08
Protector
FP03: 7K
Protector
FP04: 10K
Rectifier
-7V:DP08
Rectifier
+7V:DP07
Protector
FP02: 3K
Protector
FP07: 5K
Protector
FP05: 3K
Regulator
+9V: IP04
Regulator
+5V: IP05
Regulator
+6.3V: IP06
D
Q
D
DP26 : <9V
Off
On
ZD
QP02: >1.4V DP17: >133V
ZD
DP21: <24V
ZD
DP21: > 32V
ZD
DP29: <12V
DEF. Protect
On / Off
DP23: +115V
DP24 / DP25:
>9V
DP35: +28V
DP11: +9V
DP37 : +5V
DP-1X DEFLECTION POWER SUPPLY DISTRIBUTION DIAGRAM
VT :
SW+35V
Deflection
+115V
Video :
+220V
Conver:
-28V
Conv / Vert
+28V
Signal :
SW +9V
DCU :
SW -7V
Heater :
+6.3V
Signal :
SW +5V
Sub Power
SW +7V
DEFLECTION POWER SUPPLY SHUT DOWN CIRCUIT DESCRIPTION
DP-1X Def. Power Supply Shut Down Circuit Explanation: (See page 02-19 for Circuit Diagram)
POWER SUPPLY SHUTDOWN EXPLANATION
This chassis utilizes IP01 as the Osc.\Driver \Switch for the Deflection power supply, just as the previous chassis
have done. This IC is very similar to the previous versions. The Shutdown circuit, (cold ground side detection), is
used to turn off the Relay S901 via the following circuit, Connector PQD2 pin 1, Q916 the Relay Driver on the
Sub Power Supply PWB and the Relay S901 also on the Sub Power Supply PWB.
The Power Supply utilizes a Shutdown circuit that produces a High from 12 different sources. When any of these
inputs cause a high on the Connector PQD2 pin 1, the relay disengages, disabling the deflection power supply.
All of the Power Supply Shutdown circuitry can be broken down into the following groups;
• Voltage Missing Detection
• Excessive Current Detection
• Voltage Too High Detection
In the following explanation, the Shutdown circuits will be grouped. This will assist the Service Technician with
trouble shooting the Chassis, by understanding these circuits and having the associated circuit routs, the
technician can then “Divide and Conquer”.
COMMONLY USED SHUTDOWN DETECTION CIRCUITS
EXCESSIVE CURRENT DETECTION. (See Figure 1)
One very common circuit used in many Hitachi television
products is the B+ Excessive Current Sensing circuit. In this
circuit is a low ohm resistor in series with the particular power
supply, (labeled B+ in the drawing). The value of this resistor
is determined by the maximum current allowable within a
particular power supply. In the case of Figure 1, the value is
shown as a 0.47 ohm, however it could be any low ohm value.
When the current demand increases, the voltage drop across the
resistor increases. If the voltage drop is sufficient to reduce the
voltage on the base of the transistor, the transistor will conduct,
producing a Shutdown signal that is directed to the appropriate
circuit.
Current Detection Resistor
B+
Figure 1
0.47
Shut-Down Signal
VOLTAGE LOSS OR EXCESSIVE LOAD DETECTION
(See Figure 2)
The second most common circuit used is the Voltage Loss Detection circuit. This is a very simple circuit that
detects a loss of a particular power supply and supplies a Pull-Down path for the base of a PNP transistor.
This circuit consist of a diode connected by its cathode to a positive B+ power supply. Under normal conditions,
the diode is reversed biases, which keeps the base of Q1 pulled up, forcing it OFF. However, if there is a short or
excessive load on the B+ line, the diode in effect will
Any Positive
have a LOW on its cathode, turning it ON. This will
B+ Supply
allow a current path for the base bias of Q1, which
Voltage
will turn it ON and generates a Shutdown Signal.
B+
Loss
Detector
Q1
Figure 2
Shut-Down
Signal
PAGE 02-14
B+ VOLTAGE TOO HIGH DETECTION.
(See Figure 3)
In this circuit, a Zener diode is connected to a voltage
divider or in some cases, directly to a B+ power supply. If
the B+ voltage increases, the voltage at the voltage divider
or the cathode of the zener diode will rise. If it gets to a
predetermined level, the zener will fire. This action
creates a Shutdown Signal.
NEGATIVE VOLTAGE LOSS DETECTION.
(See Figure 4)
The purpose of the Negative Voltage Loss detection
circuit is to compare the negative voltage with its’ counter
part positive voltage. If at any time, the negative voltage
drops or disappears, the circuit will produce a Shutdown
signal.
In Figure 5, there are two resistors of equal value. One to
the positive voltage, (shown here as +12V) and one to the
negative voltage, (shown here as -12V). At their tie point,
(neutral point), the voltage is effectually zero (0) volts. If
however, the negative voltage is lost due to an excessive
load or defective negative voltage regulator, the neutral
point will go positive. This in turn will cause the zener
diode to fire, creating a Shutdown Signal.
Any Positive
B+ Supply
Voltage Too High
Detector
Shut-Down Signal
Figure 3
Shut-Down Signal
Negative
Voltage
Loss
Detector
+12V
-12V
Figure 4
DP-1X SHUTDOWN CIRCUITS FOR THE DEFLECTION POWER SUPPLY
There are a total of 12 Cold Ground Side individual Shutdown inputs. In addition, there are also 3 Hot Ground
Side Shutdown inputs that are specifically detected by the main power driver IC, IP01 that protect it from
excessive current or over voltage.
All of the Shutdown detection circuits can be categorized by the four previously described circuits
HOT GROUND SIDE SHUT DOWN SENSING CIRCUITS. (INTERNAL TO IP01).
LATCHED SHUT DOWN MONITORS: (AC must be removed to recover).
1. Pin 4 is monitored for Over Voltage internal to IP01.
2. IP01 itself is monitored for Excessive Heat. This block is labeled T.P.O. (Thermal Protection Overload).
RECOVERING SHUT DOWN INPUT: (Driver IC will recover on it’s own when trouble is removed.)
3. Pin 5 besides being used as a regulation input, is also monitoring the low ohm resistors, RP10, RP11, RP12,
and RP16, (All are 0.22 ohm resistors). If these resistors have an excessive current condition caused by
monitoring the current through the internal Switch MOS FET, the voltage will rise and pin 5 has an internal
Over Voltage detection op-amp. If this voltage rises enough to trigger this op-amp, the IC will stop producing
a drive signal.
PAGE 02-15
COLD GROUND SIDE SHUT DOWN CIRCUITS:
These Circuits are broken down into the appropriate categories as described earlier.
VOLTAGE LOSS DETECTION
1. Shorted 220V (DP24 and DP25) Inverted by QP03 then through DP28
2. Shorted SW+35V (DP26) Inverted by QP03 then through DP28
3. Shorted 28V (DP27) Inverted by QP03 then through DP28
4. Shorted Deflection Transformer or Miss-operation (D707 and Q705) then through D705
NEGATIVE VOLTAGE LOSS DETECTION
5. -M28V Loss Detection (RP21, RP20, DP35, DP21 and DP22)
EXCESSIVE CURRENT DETECTION
6. 115V Deflection Power Supply (RP24, QP02, DP18, DP19 and DP20)
7. 28V Vertical IC I601 Power Supply (R629, Q609, D608, and DP31)
VOLTAGE TOO HIGH DETECTION
8. Excessive High Voltage Detection (DH17, DH13 and DH15). Sensed from the 50P Voltage generated from pin (5) of the Flyback Transformer TH01. Also, (DH14) sends a high command to the
Horizontal Driver IC IH01 pin 7, to defeat Horizontal Drive Output if this voltage goes too high.
9. Side Pincushion failure generating a High. (D702, and D703).
10. Deflection B+ Too High. (DP17, RP26 and RP27).
11. SW +9V Voltage Too High Detection. (DP29 and DP30)
12. ABL Voltage Too High Detection. (DH15)
If any one of these circuits are activated, the power supply will STOP, and create a Power Supply Shutdown
Condition.
SHUT DOWN CIRCUIT:
Shut down occurs when pin (1) of Connector PQD2 called PROTECT goes High. This High is routed to the Sub
Power Supply PWB and is impressed on the base of the Relay Driver Transistor Q916 turning it On. When Q916
turns On, it removes the Power On High and the Relay S901 will disengage and remove the AC source from the
Deflection Power Supply.
DESCRIPTION OF EACH SHUT DOWN CIRCUIT:
Please use the Commonly Used Shutdown Detection Circuits for the description of how the circuit works.
VOLTAGE LOSS DETECTION
1. Shorted 220V (DP24 and DP25) Inverted by QP03 then through DP28
The cathode of DP24 is connected directly to the 220V line. If it shorts this circuit is activated and pulls
the base of QP03 low and it’s collector goes high. This High is routed through DP28 and RP30 to pin
(1) of Connector PQD2 called PROTECT and Shut Down occurs as described above.
2.
Shorted SW+35V (DP27) Inverted by QP03 then through DP28
The cathode of DP27 is connected directly to the SW+35V line. If it shorts this circuit is activated and
pulls the base of QP03 low and it’s collector goes high. This High is routed through DP28 and RP30 to
pin (1) of Connector PQD2 called PROTECT and Shut Down occurs as described above.
3.
Shorted 28V (DP27) Inverted by QP03 then through DP28
The cathode of DP27 is connected directly to the 28V line. If it shorts this circuit is activated and pulls
the base of QP03 low and it’s collector goes high. This High is routed through DP28 and RP30 to pin
(1) of Connector PQD2 called PROTECT and Shut Down occurs as described above.
PAGE 02-16
4.
Shorted Deflection Transformer or Miss-operation (D707 and Q705) then through D705
The Deflection circuit generates the actual Drive signal used in the High Voltage section. If a problem
occurs in this circuit, the CRTs could be damaged or burnt. D707 is connected to R728 which is normally passing the same pulse as used for generation of the H. Blanking signal. This pulse is generated off
the Deflection Transformer T752. The pulse is rectified by D707. This rectified voltage is normally sent
to the base of Q705 keeping it On and it’s collector Low. If the Deflection circuit fails to produce the
pulses for rectification, the base voltage of Q705 disappears and the transistor turns Off generating a
High on its collector. This output High is routed through D705, DP31 and RP30 to pin (1) of Connector
PQD2 called PROTECT and Shut Down occurs as described above.
NEGATIVE VOLTAGE LOSS DETECTION
5.
-M28V Loss Detection (RP21, RP20, DP35, DP21 and DP22)
RP21 (15K ohm) is connected to the negative –M28V line and RP20 (15K ohm) and DP35 (LED) is
connected to the positive +28V line. The Cathode of DP21 monitors the neutral point where these components are connected. If the negative voltage disappears, the zener DP21 fires. This high is routed
through DP22 and RP30 to pin (1) of Connector PQD2 called PROTECT and Shut Down occurs as described above.
EXCESSIVE CURRENT DETECTION
6.
115V Deflection Power Supply (RP24, QP02, DP18, DP19 and DP20)
If an excessive current condition of the Deflection B+ is detected by RP24 a 0.47 ohm resistor in the DP15 or a 0.39 ohm in a DP-17 Chassis, the base of QP02 would drop. This would turn on QP02 and the
high produced at the collector would fire zener DP18. This High would be routed through DP19 through
DP20 and RP30 to pin (1) of Connector PQD2 called PROTECT and Shut Down occurs as described
above.
7.
Vertical 28V for IC I601 Power Supply (R629, Q604, D608, and DP31)
If an excessive current condition of the Vertical B+ is detected by R629 a 0.68 ohm resistor, the base of
Q609 would drop. This would turn on Q604 and the high produced at the collector would be routed
through D608 through DP31 and RP30 to pin (1) of Connector PQD2 called PROTECT and Shut Down
occurs as described above.
VOLTAGE TOO HIGH DETECTION
8.
Excessive High Voltage Detection (DH17, RH13, and DH15). Sensed from the Heater Voltage generated from pin (5) of the Flyback Transformer TH01. Also, (DH14) sends a high command to the Horizontal Driver IC IH02, to defeat Horizontal Drive Output if this voltage goes too high.
The Flyback Transformer TH01 generates a pulse called Heater. (Note: This does not go to the CRTs as
heater voltage, its used for Excessive High Voltage Detection). If this voltage goes too high indicating an
excessive High Voltage condition, the high would be impressed on the cathode of DH15. This high is
routed DP31 and RP30 to pin (1) of Connector PQD2 called PROTECT and Shut Down occurs as described above.
NOTE: DH17 is not in the DP15 chassis, it is only in the DP17 and DP14G.
NOTE: LH06 coil has polarity, please check the “Dot” and confirm with the markings on the PWB.
Failure to do so will result in intermittent “Shut Down”.
PAGE 02-17
9.
Side Pincushion failure generating a High. (D702, and D703)
The Side Pin Cushion op-amp circuit is comprised of I701. If a problem occurred in this circuit it would
create a High from pin 7 of I701. This high is impressed on the cathode of D702, and the zener would
fire. This High will be routed through D703 through DP31 and RP30 to pin (1) of Connector PQD2
called PROTECT and Shut Down occurs as described previously.
10. Deflection B+ Too High. (DP17, RP26 and RP27
RP26 and RP27 form a voltage divider. The top side of RP27 is monitored by DP17. If the Deflection
115V voltage goes too high, the zener DP17 will fire. This high is routed through DP20 and RP30 to pin
(1) of Connector PQD2 called PROTECT and Shut Down occurs as described previously.
11. SW +9V Power Supply Too High Detection. (DP29 and DP30)
The SW +9V voltage is monitored by DP29. If this voltage goes too high, the zener DP29 will fire. This
high is routed through DP30 and RP30 to pin (1) of Connector PQD2 called PROTECT and Shut Down
occurs as described previously.
12. ABL Trigger Point Control. (RH32)
The ABL voltage is generated by the voltage drop across the ABL pull up resistors, (RH27 and RH28),
according to the Flyback current demands. (See ABL circuit diagram for details). The ABL voltage is
clamped at a maximum of 11V by (DH16).
If the High Voltage fluctuates, this fluctuation manipulates the ABL voltage slightly to avoid an accidental trigger and to avoid ABL from over controlling the video through the Rainforest IC.
PAGE 02-18
DP1X DEFLECTION POWER SUPPLY SHUTDOWN DIAGRAM
0.39 ohm DP-17
TP91
Deflection B+ (115V)
Excessive Current Det.
RP24
QP02 0.47
DP15
11
CP32
Deflection B+ (115V)
Excessive Voltage Det.
RP26
RP25
RP28
CP34
Deflection B+ 115V
Flyback
RP27
DP18
RP29
TH01
DP17
CP36
Hi Volt
H. Drive
Not in DP-15
DH17
IH01
5
DP19
DP20
7 OVP
5OP LH06
PQD2
DH13
DH14
29.01V
1
RP30
Active
PROTECT
To Sub Power
Supply
Off
Vertical Output
Excessive Hi
Voltage Det.
RH25
CH17
I601
CH19
ABL Trigger
Point Control
10
RH32
R629 0.68
28V
Q604
DH15
220V Short Det.
QP03
DP24 DP25
DP28
220V
DP31
DP26
SW+35V
Excessive Vertical
Current Det.
D608
SW+35V Short Det.
X-RAY
PROTECT
DP27
28V
DP21
DP22
28V Short Det.
Side Pin Failure
High Det.
DP30
DP35
D703
RP20
D702
DP29
RP21
+28V M-28V
SW+9V
D705
SW+9V Too
High Det.
-28V Loss Det.
SW+11V
R728
Deflection B+ 115V V1
Q777
6
7
1
8
T752
C703
D707
R720
9.46V
R718
Q705
Q706
H.Blk
R719
Deflection Transformer
Inoperative Det.
PAGE 02-19
DP-1X LEDs USED FOR VISUAL TROUBLE SHOOTING DESCRIPTION
DEFLECTION POWER SUPPLY VISUAL LEDs. (See page 02-24 for Circuit Diagram)
DP-1X Chassis has 4 Green and 1 Red LEDs on Deflection Power Supply PWB.
This chassis utilizes 4 Green LEDs in the power supply cold side and a Red LED in the HOT side.
POWER ON MODE:
When the Power is turned ON, the LEDs lights;
1) DP06 Indicating Vcc applied to the Power Supply Driver IC IP01 pin 4 (Colored RED)
2) DP23 Indicating 115V Deflection B+ is available (Colored GREEN)
3) DP37 Indicating SW +5V B+ is available (Colored GREEN)
4) DP11 Indicating SW +9V B+ is available (Colored GREEN)
5) DP35 Indicating 28V B+ is available (Colored GREEN)
LED USAGE:
The Visual LEDs are very useful in Trouble Shooting. Without removing the back cover, some diagnostics can be
made. By observing the operation of the Red and Green LEDs, the technician can determine if the Deflection
Power Supply is running or not. Also, by monitoring these LEDs at turn on, one can determine if a line is loaded.
If an LED tries to light this goes off, or only lights dimly, this a loaded condition should be considered.
Remember, this power supply doesn’t operate when the set is in Standby.
The following will examine each LED and how they are lit.
DP06 INDICATING VCC APPLIED TO THE POWER SUPPLY DRIVER IC IP01 PIN 4 (COLORED RED)
This LED can be used to determine any of two different scenarios,
1. Is there B+ (Vcc) available to the Deflection Power Supply Driver IC? LED will be ON
2. Is the B+ (Vcc) available to the Deflection Power Supply Driver IC missing? LED will be OFF
As can be see, there is 1 scenario that can cause DP06 to be off, (1) Missing Start up voltage for the Driver IC.
DP23 INDICATING 115V DEFLECTION B+ IS AVAILABLE (COLORED GREEN)
This LED is connected directly to the 115 V deflection B+ line. If it’s lit, 115V is available.
DP37 INDICATING SW +5V B+ IS AVAILABLE (COLORED GREEN)
This LED is connected directly to the SW +5V B+ line. If it’s lit, +5V is available.
DP11 Indicating SW +9V B+ is available (Colored GREEN)
This LED is connected directly to the SW +9V B+ line. If it’s lit, +9V is available.
DP35 Indicating 28V B+ is available (Colored GREEN)
This LED is connected directly to the +28V B+ line. If it’s lit, +28V is available.
B+ GENERATION FOR THE DEFLECTION POWER SUPPLY DRIVER IC. See Figure 1
START UP VOLTAGE GENERATION:
Vcc for the Driver IC is first generated by the AC input. This voltage is called Start Up Voltage. IP01 requires
21V DC to operate normal. However, it will begin operation at 14V DC on pin (4) of IP01.
When AC is applied by the relay on the Sub Power Supply R901, AC is routed through the connector PQD1.
Then it arrives at the main full wave bridge rectifier DP01 where it is converted to DC voltage. One leg of the AC
is routed through RP02 and RP03 (both a 3.9K ohm resistor), filtered by CP05, and made available to pin (4) of
IP01 as start up voltage. The Red LED DP03 is illuminated by this power supply. When this voltage reaches
6.8Vdc, the internal Regulator of IP01 is turned On and begins the operation of IP01.
RUN VOLTAGE GENERATION:
After the transformer TP91 is started, a pulse is output from pin 8. This pulse is rectified by DP02, filtered by
CP05 and takes over as Run Voltage (16.3V) at pin 4 of IP01.
PAGE 02-20
DP-1X LEDs USED FOR VISUAL TROUBLE SHOOTING DESCRIPTION
Hot
Sub Power Supply
Relay
R901
AC Input
Connector
PQD1
Rectifier
DP01
Cold
Switching
Transformer
TP91
RP02/03
4
Switching
Control
IP01
DP03
RED LED
3
Power/Deflection PWB
Figure 1
REGULATION:
Figure 2 is a simplified diagram of the main Power Supply used in the DP-1X series Projection Television
chassis.
The primary control element of the power supply is IP01 (the Switching Regulator IC), in conjunction with
transformer TP91. These two components, along with the supporting circuitry, comprise a closed loop regulation
system.
Unlike previous Pulse Width Modulated (PWM) Switch Mode Hitachi power supplies, the regulation system in
the this chassis utilizes Frequency Control Modulation with an operational frequency of 60KHZ to 85KHZ,
corresponding to full load and no load conditions, respectively. Primary regulation is provided by IP03, IP02 and
into IP01, regulating the switching frequency at pin (3) of I901 via pin 1.
Two primary secondary voltages are developed that are needed to sustain run and maintain regulation;
1. Run Voltage generated from pin (8 and 9) of TP91 rectified by DP02 and supplies run voltage to IP01 pin
(4) and
2. 115V Deflection Voltage generated from pin (11) of TP91, rectified by DP15 and used for regulation and
powering the Deflection and regulation circuitry.
AC
Raw 150V
X2
4
Drain
IP01
Switch Source
Mode Regulate
IC
DP06
1&2
8
3
TP91
Switch Mode
Transformer
Run V
5&6
115V
Deflection B+
11
DP23
2
1
1
3
IP02
Opti-Coupler
HOT
COLD
2
IP03
Regulator IC
Figure 2
PAGE 02-21
PAGE 02-22
IP01
4
16.3
DP23
RP32
RP31
DP06 is a RED L.E.D.
OFF = IP01 B+ Missing
May be caused by Shut Down
or Faulty Start up Circuit.
ON = IP01 B+ OK
2.1V
1
CP05
RP09
Run
GREEN L.E.D.s
DP37
RP44
SW+5V
Driver/Output IC
Start Up
50KHz Blk Screen
30KHz White Screen
DP03
RP03
65V
RP02
AC
RP32
115V Deflection B+
DP06
RP13
3.53V
3
4
16.97V
DP02
DP11
RP19
SW+9V
IP02
Regulator
IP03
2
11.1V
2
1
11.9V
From Pin 8 TP91
5.4V P/P
DP35
RP20
IP04 Regulator
Photocoupler
RP05
28V
DP-1X CHASSIS L.E.D. (VISUAL TROUBLE DETECTION) DIODES
DEFLECTION PWB 4 GREEN L.E.D.s and 1 RED L.E.D.
(5 Total L.E.Ds. for visual trouble sensing observation)
Vcc
DEFLECTION
INFORMATION
DP-1X CHASSIS
SECTION 3
DP-1X DEFLECTION BLOCK CIRCUIT DESCRIPTION
DEFLECTION BLOCK CIRCUIT DIAGRAM DESCRIPTION: (See page 03-04 for Circuit Diagram)
(Use the Horizontal Drive Circuit Diagram for more details)
CIRCUIT DESCRIPTION
When B+ arrives at the Rainforest IC IC01 pin (19), horizontal drive is output from pin (26). The drive signal is
routed through the connector PSD2 pin 5 to the Horizontal Driver Transistor Q751. This transistor switches the
ground return for pin (8) of the Driver transformer (T751). 28 volts is supplied to pin (5) and this switching allows EMF to develop. As this signal collapses, it creates a pulse on the output pin of (T751) at pin (4) to the base
of the Deflection Horizontal output transistor Q777.
Q709 transistor switches the primary windings of the Deflection Transformer T752.
T702 TRANSFORMER PRODUCES THE FOLLOWING OUTPUT PULSES;
• Deflection Pulse from pin (7): This pulse is used by;
1. To X-Ray Protect through D707: This signal is monitored by the X-Ray Protect circuit to place the
power supply into shut down if the Deflection circuit doesn’t operate.
2. The Dynamic Focus OUT Circuit PWB through PDK4 connector pin 5: A Dynamic Focus waveform, (Horz. Parabola) is created. This is a parabolic waveform that is superimposed upon the static focus voltage to compensate for beam shape abnormalities which occur on the outside edges of the screen
because the beam has to travel further to those locations.
3. 1100V Generation circuit through D711, D712 and the connector PDF1 pin 1.
This is the Dynamic Focus output voltage.
• +28V, M26V and RETRACE PULSE +28P and M28P: The positive 28V and the negative 28V is routed
to the Deflection transformer T752. They enter the transformer as a pure DC voltage then a 7.5V P/P horizontal pulse is added to the DC voltage and leaves as +28P and M28P. From here these voltages are routed to
the Convergence output section and they are rectified. They become +33V and -33V respectively. This process prevents the need for another power supply. (Note: the M stands for Minus voltage.)
HORIZONTAL BLANKING (H. BLK) GENERATED FROM PIN (7):
The Horizontal Pulse is also routed to the Horizontal Blanking generation transistor Q706. This transistor generates the 13V P/P called H Blk. This signal goes to the following circuits;
• To pin the PSD2 connector pin 7 to pin (24) of IC01 as FBP In. Here this signal is used as a comparison signal. It is compared to the reference signal coming in at pin (15) Horizontal Sync. If there are any differences
between these two signals, the output Drive signal from pin (26) is corrected.
NOTE: When a 1080i signal is input through component inputs, the Rainforest IC detects this as well
and outputs the Vertical Squeeze (V. Squ) signal from pin (36). The Reference signal for Horizontal
Sync now becomes the Y input from component, pin (8).
• To the Convergence circuit for correction waveform generation.
• Sweep Loss Circuit (QN01) to shut off the CRTs if Horizontal deflection is lost.
• Through the connector PSD2 pin (7): The H Blk signal is routed from here to the Signal PWB to be used by
different circuits.
The Microprocessor uses this signal for OSD positioning and for Station Detection during Auto programming
within the coincidence detector.
The PinP unit uses this signal for switching purposes. Like the read/write clock, positioning, etc…
•
The Horizontal Blanking signal H Blk from Q706 is also sent to the High Voltage Driver IC IH01 pin (3).
This IC uses this signal as its reference signal to produce the High Voltage Drive waveform output from pin
(1). This output is routed to the driver transistors, QH02. Then to the High Voltage Horizontal Output Tran(Continued on page 2)
PAGE 03-01
sistor QH01. This transistor switches the primary of the Flyback transformer TH01. Deflection B+ 115V2 is
sent through pin (9) and output pin (10) to the collector of the Horizontal Output Transistor QH01.
A sample of the High Voltage is output from the Flyback transformer TH01 pin (12). This voltage is sent to pin
(9) of the High Voltage Driver IC IH01. This voltage is compared to the reference voltage available at pin (12). If
there is a difference between the two voltages, an error voltage is generated and output from pin (10) and input
again at pin (11) where it manipulates the PWM (Pulse With Modulation) signal producing the Horizontal Drive
signal output from pin (1).
The error signal from pin (10) is also sent to the Side Pen Cushion circuit through (R752). This signal manipulates the amount of pin cushion correction dependant upon the amount of High Voltage error voltage detected by
the Side Pen Cushion op-amp (I701) at pin (3).
It’s important to notice that the High Voltage circuit can not function without the Horizontal Deflection circuit
providing a drive signal.
GENERAL INFORMATION:
The DP-1X deflection circuit differs from conventional projection product. It utilizes in a sense, two horizontal
output circuits. One for Deflection and one for High Voltage. There are many terms around the Horizontal circuit
that are not shown on the Diagram. Some of these terms are explained first:
CUT OFF:
Cut of collapses the Vertical circuit during I2C Bus alignments, during CRT Set Up.
ABL:
ABL voltage is generated by monitoring the current through the Flyback transformer. This voltage will fluctuate
down when the scene is bright and up when the scene is dark. The ABL voltage will manipulate the screen brightness and contrast to prevent blooming under these conditions.
H BLK:
• H Blk: Horizontal and Vertical Blanking is developed within the Deflection circuit. The Horizontal Blanking
pulse operates around 13V P/P and is produced by taking a sample pulse from the Deflection transformer
T752.
V BLK:
• V Blk: The Vertical Blanking pulse is generated from the Vertical output IC, I601 pin (11). This pulse normally operates at 21V P/P.
IR:
The Infrared Pulses coming from the remote control are routed through the Deflection PWB to the Digital Convergence Unit. During DCAM (Digital Convergence Adjustment Mode), the Remote Control provides instruction
codes for the DCU.
DIG RGB/ BUSY:
This indicates Digital RGB and BUSY.
• Digital RGB represents the On Screen Display produced by the DCU for generating the Digital Convergence
adjustment grid and text produced during certain conditions such as Magic Focus, Sensor Initialization, Data
Storage, etc…
• Busy notifies the DAC1 (I006 pin 1) which in turn notifies the Microprocessor I001 that the DCU has entered the DCAM. During this time, the Microprocessor ignores the remote control commands.
PAGE 03-02
MAGIC SW: (MAGIC FOCUS)
When the customer activates MAGIC FOCUS from the Front Control panel or via the Menu, Magic Focus is
Energized by producing a low at pin 14 of the DCU.
D SIZE:
Digital Size is a control signal for raster enlargement when MAGIC FOCUS is operated. Raster enlargement is
required for the MAGIC FOCUS PATTERN to hit the photo sensors.
This signal is output from DCU and routed to the base of Q710 for enlarging horizontal size through the Pin
Cushion circuit and through Q603 to the Vertical Output IC I601 pin (4) to enlarge the vertical size.
In some cases, this control signal is called "A.SIZE". It's the same function between DIG.SIZE and A.SIZE.
TO CONVERGENCE YOKES:
The DCU provides compensation signal for deflection abnormalities to the convergence output IC. The Convergence output IC in turn, amplify the signals and rout them to the convergence yokes.
+B 115V1:
The Deflection transformer receives the 115V V1 DC source.
+B 115V2:
The High Voltage Transformer TH01 (Flyback) receives the 115V V2 DC source.
HV PARABOLA:
See DF Out.
SCREEN 700V: 700V Supplied to the screen grids on the CRT’s.
FOCUS 12KV:
Focus voltage supplied to the CRT’s.
30Kv HV:
30,000 volts DC supplied to the CRT’s anodes.
TO DEFLECTION YOKES:
Horizontal and Vertical deflection wave forms driving the deflection yokes.
V SQUEEZE: (This signal is not used in the 16 X 9 screen aspect models).
V. SQU is a signal that goes high when a 1080i signal is input through component in and Display 5 (1080i Mode)
is selected through the customer’s menu. This signal is generated by the Rainforest IC. When this signal goes
high, it switches the DCU into a different set of memories for Convergence data and Magic Focus data. It also
shrinks the Vertical Size to match the 16 X 9 image to squeeze all the visible horizontal lines into a 16 X 9 image.
NOTE: 16 X 9 Aspect models have the ability to select 1080i mode as well. However, they do not produce the V.
Squeeze signal because there’s no need for it. 1080i Through Mode means that the signal bypasses the Flex Converter and is processed directly by the Rainforest IC.
SERVICE ONLY SWITCH:
Drops pin 9 of the PDG connector low and the DCU enters the Digital Convergence Adjustment Mode,
(DCAM), producing the DCAM grid.
PAGE 03-03
8
/
PHOTO
SENSOR
SENSOR
DISTRIBUTION
H Drive
D Size
See Note:
Magic SW
V Squeeze
Not in 16X9
/ 8 (DP17)
Not in
/
43FDX10B 4 (DP1X)
H Blk
IR
Dig RGB
Busy
TDA817A
HV DRIVE
QH02
To Deflection Yokes
DIGITAL
CONV.
UNIT
HC2152/3
6
/
+5V
-5V
SERVICE
SWITCH
ABL
Vcp
Focus
12Kv
DF
Out
FOCUS
PACK
/
3
3
/
34v, -34v
To Convergence
Yokes
6
/
Screen
(700V)
Focus
(9KV)
+B (115V)
Retrace Pulse
CONV. OUT
STK392-110
+26P,
-26P
+
HOT
T752
Deflection Transformer
DYNAMIC
FOCUS OUT
2SC4686X3
FBT
THO1
32Kv HV
High Voltage
Transformer
Note: Magic SW
Switch called Convergence Adjust in 43FDX10B
+26V,
-26V
H Blk
H Blk
1100V
+
HV
Parabola
HIGH
VOLTAGE
REGULATION
DETECTOR
GT8Q101
Deflection runs at 33.75 Khz
at all times for all inputs.
2SC5690
Q777
2SC3116
Q751
V Blk
HORZ.
OUT
B+
Modulator
H-SIZE
SIDE-PIN
CONTROL
I701
Size Regulation
Control
HV OUT
(QH01)
To Deflection Yokes
HORZ.
DRIVE
D Size
V Parabola Saw
V Squeeze
115V B+
DC couple / 3
I601
VERTICAL
OUTPUT
11V +28V
HV Control
(M6250B)
Dig RGB
Busy
D Size
V Squeeze
Not in 16X9
Aspect Sets
V Blk
Cut Off
V Drive
H Blk
11V
IH01
IR
DP1X DEFLECTION BLOCK DIAGRAM
H Blk
ABL
From Sig PWB
PAGE 03-04
DP-1X HORIZONTAL DRIVE CIRCUIT DESCRIPTION
HORIZONTAL DRIVE CIRCUIT DIAGRAM DESCRIPTION: (See Circuit Diagram)
CIRCUIT DESCRIPTION
When B+ arrives at the Rainforest IC IC01 pin (19), horizontal drive is output from pin (26). The drive signal is
routed through the connector PSD2 pin 5 to the Horizontal Driver Transistor Q709. This transistor switches the
ground return for pin (8) of the Driver transformer (T702). 28 volts is supplied to pin (5) and this switching allows EMF to develop. As this signal collapses, it creates a pulse on the output pin of (T702) at pin (4) to the base
of the Deflection Horizontal output transistor Q777.
(Note: New Information: Q707 and Q708 SHOULD BE REMOVED from the Circuit if Q777 is ever found
shorted or defective.)
Q777 transistor switches the primary windings of the Deflection Transformer T701.
T701 transformer produces the following output pulses;
Deflection Pulse from pin (7): This pulse is used by;
1) To X-Ray Protect through D707: This signal is generated by monitoring the Deflection Transformer. If a
rectified DC voltage that is created by the Deflection transformer is not detected, the power supply is
placed into shut down.
2) The Dynamic Focus OUT Circuit PWB through PDK4 connector pin 5: A Dynamic Focus waveform,
(Horz. Parabola) is created. This is a parabolic waveform that is superimposed upon the static focus voltage to compensate for beam shape abnormalities which occur on the outside edges of the screen because
the beam has to travel further to those locations.
3) 1100V Generation circuit through D711, D712 and the connector PDF1 pin 1.
• This is the Dynamic Focus output voltage.
+28V, M26V and RETRACE PULSE +28P and M28P: The positive 28V and the negative 28V is routed to
the Deflection transformer T701. They enter the transformer as a pure DC voltage then a 7.5V P/P horizontal
pulse is added to the DC voltage and leaves as +28P and M28P. From here these voltages are routed to the
Convergence output section and they are rectified. They become +33V and -33V respectively. This process
prevents the need for another power supply. (Note: the M stands for Minus voltage.)
HORIZONTAL BLANKING (H. Blk) GENERATED from pin (7) of T701:
The Horizontal Pulse is also routed to the Horizontal Blanking generation transistor Q706. This transistor generates the 13V P/P called H Blk. This signal goes to the following circuits;
• To pin the PSD2 connector pin 7 to pin (24) of IC01 as FBP In. Here this signal is used as a comparison
signal. It is compared to the reference signal coming in at pin (15) Horizontal Sync. If there are any differences between these two signals, the output Drive signal from pin (26) is corrected.
• NOTE: When a 1080i signal is input through component inputs, the Rainforest IC detects this as
well and outputs the Vertical Squeeze (V. Squ) signal from pin (36). (NOT in the 16 X 9 Aspect
Models). The Reference signal for Horizontal Sync now becomes the Y input from component, pin
(8).
• To the Convergence circuit for correction waveform generation.
• Sweep Loss Circuit (QN01) to shut off the CRTs if Horizontal deflection is lost.
• Through the connector PSD2 pin (7): The H Blk signal is routed from here to the Signal PWB to be used
by different circuits.
• The Microprocessor uses this signal for OSD positioning and for Station Detection during Auto programming within the coincidence detector.
• The PinP unit uses this signal for switching purposes. Like the read/write clock, positioning, etc…
PAGE 03-05
DP-1X HORIZONTAL DRIVE CIRCUIT DESCRIPTION
•
The Horizontal Blanking signal H Blk from Q706 is also sent to the High Voltage Driver IC IH01 pin (3).
This IC uses this signal as its reference signal to produce the High Voltage Drive waveform output from
pin (1). This output is routed to the driver transistors, QH02. Then to the High Voltage Horizontal Output
Transistor QH01. This transistor switches the primary of the Flyback transformer TH01. Deflection B+
115V2 is sent through pin (9) and output pin (10) to the collector of the Horizontal Output Transistor
QH01.
A sample of the High Voltage is output from the Flyback transformer TH01 pin (12). This voltage is sent to pin
(9) of the High Voltage Driver IC IH01. This voltage is compared to the reference voltage available at pin (12). If
there is a difference between the two voltages, an error voltage is generated and output from pin (10) and input
again at pin (11) where it manipulates the PWM (Pulse Width Modulation) signal producing the Horizontal Drive
signal output from pin (1).
The error signal from pin (10) is also sent to the Side Pen Cushion circuit through (R752). This signal manipulates
the amount of pin cushion correction dependant upon the amount of High Voltage error voltage detected by the
Side Pen Cushion op-amp (I701) at pin (3).
It’s important to notice that the High Voltage circuit can not function without the Horizontal Deflection circuit
providing a drive signal.
GENERAL INFORMATION:
The DP-1X deflection circuit differs from conventional Hitachi product. It utilizes in a sense, two horizontal output circuits. One for Deflection and one for High Voltage. This allows for better deflection stabilization and is not
influenced by fluctuations of the High Voltage circuit which may cause unacceptable breathing and side pulling
of the deflection.
PAGE 03-06
PAGE 03-07
H.Blk.
H Out
H.Blk.
To Sweep Loss Det.
Circuit QN01
HD1 In
Y2 In
19
SW+9V
28V
16
8
1
5
I701
3
To Pin Cushion
Correction Circuit
10
11
3
Com1
E
r
r
o
r
Drive
9
12
1
Q701
Q777
Def Power
Def PWB
IH01
Gen
B+ 115V V1
4
8
T702
11
PSD3
1080i
Through Mode
H. Sync In
From Flex
Converter
Osc.
XC01
HVCC
See Voltage and Waveform
Chart on next page.
Q707
Q708
Rainforest IC
26 H Out
To Convergence Circuit
Q706
VCC
24 FBP In HVCO 21
Q709
Signal PWB
Q777 Protection
Circuit
5
7
PSD2
IC01
To Micro. for OSD, Auto Prog, SD, AFC,
FB In
Ref. V.
QH02
7
8
9
10
12
10
9
TH01
1100V Generation
D711, D712
PDF1 (1)
To X-Ray Protect?
Through R728, D707
To Dynamic Focus
Through PDK4 (5)
QH01
HV Sample
M28P
M28V
+28P
+28V
Def.
H Pulse
11
12
115V V2
6
5
1
T701
H. Def. Yoke B
H. Def. Yoke G
H. Def. Yoke R
DP1X SERIES CHASSIS HORIZONTAL DRIVE CIRCUIT
High
Voltage
DP-1X SERIES CHASSIS HORIZONTAL DRIVE IC VOLTAGES & WAVE FORMS
Pin 1 = 4.79V (6.2V with Blank Raster) Varies with Brightness levels.
Pin 2 = 11.58V
Pin 3 = 0.68V
Pin 4 = 2.34V
IH01
Pin 5 = 1.52V
Gen
Pin 6 = 0.0V
3
Drive
Pin 7 = 1.65V
1
Pin 8 = 0.0V
Com1
Pin 9 = 7.11V
Pin 10 = 7.11V
E 12
Pin 11 = 7.11V
r
11
Pin 12 = 7.11V
r
Pin 13 = 2.34V
o
10
9
r
Pin 14 = 1.85V
Pin 15 = 4.89V
Pin 16 = 0.0V
Pin 1
1.4V P/P 33.75Khz
Pin 3
600mV P/P 33.75Khz
Pin 4
296mV P/P 33.75Khz
PAGE 03-08
DP-1X Sweep Loss Circuit Diagram Explanation
(See Circuit Diagram on Page 03-10)
The key component in the Sweep Loss Detection circuit is QN02. This transistor is normally biased off. When
the base becomes more negative, it will be turned on, causing the SW +11V to be applied to two different circuits,
the Spot circuit and the High Voltage Drive circuit.
SPOT CIRCUIT
When QN02 is turned on, the SW +11V will be applied to the anode of DN11, forward biasing it. This voltage
will then pass through DN11. It will then be clamped by DN12, and arrive at pin 3 of PSD2. It will then be
directed to the Signal PWB where it will activate the Video Mute circuitry Q023 - Q021. This is done to prevent
CRT burns.
Another input to this circuit is pin 4 of PSD2 called “CUT OFF”. This will activate when accessing certain
adjustments parameters in the service mode; i.e. turning off vertical drive for making CRT drive or cut-off
adjustments. When Vertical Drive is defeated, the Vertical Sweep loss circuit would activate. Cut Off is routed to
QN06 to “inhibit” the Spot line from activating and shutting off the CRTs.
HIGH VOLTAGE DRIVE CIRCUIT
When QN02 is turned on, the SW +11V will also be routed through RN15 and DN09 and applied to the High
Voltage Drive IC IH01 at pin 14. When this occurs, the IC will stop generating the drive signal that is used to
produce High Voltage via QH02, the High Voltage Driver. Again, this is done to prevent CRT burn, especially
during sweep loss.
CONCERNING QN02
There are several factors that can affect the operation of QN02; loss of vertical or horizontal blanking.
Loss of Vertical Blanking (V Blk)
The Vertical pulse at the base of QN05 switches ON05 on and off at the vertical rate. This discharges CN03
sufficiently enough to prevent the base of QN04 from going high to turn it on and activate QN02.
When the 24 Vp/p positive vertical blanking pulse is missing from the base of QN05, it will be turned off, which
will cause the collector to go high because CN03 charges up through RN11. This in turn will cause QN04 to turn
on because it’s base pulls up high, creating an increase of current flow from emitter to collector and up through
RN08, (which is located across the emitter base junction of QN02), to the SW +11V supply. This increase of
current flow through RN08 will bias on QN02 and the events described in “Spot Circuit Activation” above will
occur.
Loss of Horizontal Blanking (H Blk)
The Horizontal pulse at the base of QN01 switches ON01 on and off at the horizontal rate. This discharges CN02
sufficiently enough to prevent the base of QN03 from going high to turn it on and activate QN02.
When the 11.6 Vp/p positive horizontal blanking pulse is missing from the base of QN01, it will be turned off,
which will cause the collector to go high through DN03, RN02 and SW +11V as CN02 charges. This in turn will
cause QN03 to turn on because it’s base is pulled up high when DN02 fires. When QN03 turns on, an increase of
current flow from emitter to collector, through RN07, and up through RN08. This increase of current flow
through RN08 will bias on QN02 and the events described in “Spot Circuit Activation” above will occur.
Page 03-09
DP1X SWEEP LOSS DETECTION CIRCUIT
SW+11V
Vertical
Blanking
From
Pin 11 I601
RN12
QN05
RN11
RN09
To Deflection
Power Supply
Circuit Diagram
DN08
RN13
V. Blk.
QN04
CN03
CN04
DN06
SPOTPROTECT
DN07
RN14
DN04
24V P/P
DN05
RN07
RN08
RN02
SW+11V
DN13
SW+11V
QN02
Horizontal
Blanking
From
Q706 Emitter
CN02
CN01
H. Blk.
DN03
RN03
DN02
QN01
RN04
RN05
11.6V P/P
SPOT
From I006
DAC1
Pin 6
QN03
3
High Voltage
Driver IC
RN06
IH01
DN09
DN01
RN01
PSD2
Prevents CRT Burn
RN15
DN11
DN10
14 Stops
Drive
RH08
1 Drive
RN16
DN12
To Q023
Signal
1of 3
See A/V
MUTE
Circuit
CUT
OFF
RN10
QH02
High Voltage
H Drive
RN17
Spot
Inhibit
4
Stops High Voltage
Drive Signals From
being produced
when Sweep Loss is
detected.
QN06
When Vertical Drive
is turned Off during
adjustment, I 2C.
PAGE 03-10
DP-1X CHASSIS DISPLAYING A (16x9) IMAGE ON (4X3) DISPLAY
TOP AND BOTTOM PANNELS ARE OSD GENERATED
Top Pannel
Slightly
above
black
to avoid
16X9
burning
an image
Customer
Menu
Vertical
Center
Adjustable
Bottom Pannel
THROUGH MODE, VERTICAL IS COLLAPSED
No Deflection
Visible Area
No Deflection
in the Black Area.
All 540 lines
compressed into
the visable area.
Possibility of
16X9 window
burn in!!!!
No Deflection
PAGE 03-11
PAGE 03-12
8
36
RG58
C702
R744
R743
R742
Component Y
1080i Only
16x9 HD
RC84
D602
RH29
47K
ABL
To PSD2 pin 2
RH30
Q601
DEFLECTION PWB
R603
R634
Vertical Squeeze
(V. SQU)
Vertical
Parabolic
1
PSD2
To Side Pin Cushion Circuit
I701, Q703, Q701
Q704
SIGNAL PWB
Y2 In
RAINFOREST
IC
DAC 2
IC01
SW+9V
QH03
C612
C601
VERTICAL SQUEEZE FOR 1080i THROUGH MODE
NOT FOR THE 16 X 9 ASPECT MODELS
C603
RH28
33K
RH27
39K
115V v2
7
From
Flyback
Pin 3
VERTICAL RAMP
I601
R602
9
11
D601
D Size
D602
R603
R634
V Squeeze
Q601
Q603
R635
Q602
C601
R611
R612
7
R610
4
5
8
9
11
2
1
-
+
D603
7
PSD3
R618
C602
C604
R608
D607
D604
R631
R605
R616
R607
V.Size
R606
R625
R628
R627
R626
R621
R620
1.2 ohm
C607
C609
D605
R622
L601
R629
0.68
28V
C610
Q604
R630
X Ray
Protect
D608
R614
R604
C605
V. Sync In
From Flex
Converter
Osc.
Y/CVcc
10
R609
Hight
Adj
NC
Buffer
Out
Flyback
Pulse
Inverting
Input
V OUT
Output
Stage Vs
Vs
15
21
55
V OUT
Ramp
Gen
Input
3 Trigger
6 Gnd I601
VD1 In
HVCO
VCC
IC01
27 VP Out
C603
Signal PWB
V Drive
V.Blk.
PSD2
To Micro. for OSD Positioning
Def Power
Def PWB
R619
1.2 ohm
C608
To Side Pin
Cushion Circuit
To Dynamic
Focus Circuit
C606
V. Def. YokeR
V. Def. Yoke G
V. Def. Yoke B
D606
R615
1
2
PMR
1
2
PMG
1
2
PMB
DP-1X (4 X 3 Aspect Models) SERIES CHASSIS VERTICAL OUTPUT CIRCUIT
To Vertical Sweep Loss
Detection Circuit
C612
To Conv. Circuit
V.Blk.
R613
PAGE 03-13
PAGE 03-14
D601
Q503
D Size
R613
R614
7
R611
C602
5
R610
Vs
4
8
9
11
2
1
-
+
D603
7
PSD3
V.Blk.
R618
R604
C605
V. Sync In
From Flex
Converter
Osc.
Y/CVcc
10
R609
Hight
Adj
Buffer
Out
Flyback
Pulse
Inverting
Input
V OUT
Output
Stage Vs
I601
15
21
55
V OUT
Ramp
Gen
NC
Trigger
Input
Gnd
3
6
VD1 In
HVCO
VCC
IC01
27 VP Out
C603
Signal PWB
V Drive
V.Blk.
To Vertical
Sweep Loss
Detection Circuit
To Conv.
Circuit
R602
9
11
PSD2
To Micro. for OSD Positioning
C604
R608
D607
R605
R616
R607
V.Size
R606
R625
R628
R627
R626
R621
R620
1.2 ohm
C607
C609
D605
R622
L601
R629
0.68
28V
C610
Q604
R630
D604
R631
D608
X Ray
Protect
Def Power
Def PWB
R619
1.2 ohm
C608
To Side Pin
Cushion Circuit
To Dynamic
Focus Circuit
C606
V. Def. YokeR
V. Def. Yoke G
V. Def. Yoke B
D606
R615
1
2
PMR
1
2
PMG
1
2
PMB
DP-14G (16 X 9 Aspect Models) SERIES CHASSIS VERTICAL OUTPUT CIRCUIT
PAGE 03-15
R714
R703
R702
R701
Q701
115V V2
R715
Q710
C715
L703
R708
11.61V
C701
R729
1
C731
7.11V
7
2
-
+
4.39V
I701
8
To H. Linearity
off H. Yoke Returns
L704, L705
D SIZE
Magic Focus = Hi
R747
D713
R704
Q703
R707
To H. Drive
Transformer T701
D701
R706
SW+11V
7.3V
5.17V
R721
C722
3
6
C701
R717
4
5
H Drive
R752
+
-
5.14V
D702
10
11
3
R710
E
r
r
o
r
Drive
Com1
Gen
IH01
C730
9
12
1
R713
FB In
Ref. V.
R742
V Parabolic
10
9
12
TH01
High
Voltage
Q704
R734
V Squeeze
Through Mode = Hi
HV Sample
QH02 QH01
115V V2
D714
R710
C702
R711
SW+11V
R709
X-RAY Protect
H Size
R751
R712
D703
DP-1X SIDE PINCUSHION CIRCUIT DIAGRAM
DIGITAL
CONVERGENCE
INFORMATION
DP-1X CHASSIS
SECTION 4
DP-1X DIGITAL CONVERGENCE INTERCONNECT DESCRIPTION
Use this explanation in conjunction with the Digital Convergence Interconnect circuit diagram Page 04-05.
The Digital Convergence circuit is responsible for maintaining proper convergence of all three colors being produced by the CRTs. Many different abnormalities can be quickly corrected by running Magic Focus.
The Digital convergence Interconnect Diagram depicts how the Digital Convergence Circuit is interfaced with the
rest of the Projection’s circuits. The main components and/or circuits are;
• THE DIGITAL CONVERGENCE UNIT (DCU)
• INFRARED REMOTE RECEIVER
• ON SCREEN DISPLAY PATH
• CONVERGENCE OUTPUT STKs
• CONVERGENCE YOKES
• MAGIC FOCUS SENSORS AND INTERFACE
• MICROPROCESSOR
• RAINFOREST IC (Video Processor).
• SERVICE ONLY SWITCH
• MAGIC FOCUS activation control utilizing the Magic Focus Switch on Front Control Panel.
THE DIGITAL CONVERGENCE UNIT (DCU) (Generic for 8 sensor array models).
The DCU is the heart of the Digital convergence circuit. Held within are all the necessary components for generating the necessary waveforms for correction, and associated memories for the adjustment data and Magic Focus
Data.
Sensors (X8)
Technician's Eye
SCREEN
M
Adjust through observation
IR
EEPROM
2K Bit
Timing
Controller
Data Comparator
Serial-Parallel
between stored data
and light sensor data
Addressable
by
Technician
Converter
CRT
D/A
2nd S/H
LPF
CLAMP
Serial/Parallel
Converter
B
G
R
V
CY CLAMP
Timing
Controler
One Chip CPU
SLOW
H
Error Data
Digital Cross
Hatch Gen.
8 bit
128 Kbit
Sensor PWB
A/D
1st S/H
Infra-Red Decoder
To Video Circuits
Via O.S.D.
Displays CrossHatch
117 Points Per/Color
R
Remote
Control
256 Adjusted
Points
Per/Color
RO
Light
Stored during Initialize
Stored Light Sensor Data
X1
X6
X6
X6
X6
Gate Array 4000 gates
EEPROM
(2Kbit)
Calculation of other 139 points per/color
S-RAM
(256Kbit)
FAST
Also available;
35 Adjustment Points
9 Adjustment Points
117 Points Per/Color
INTERPOLATION
Back Up
DIGITAL
CONVERGENCE
CIRCUIT
D/A Conv.
Static Centering
AC Applied, Copy from EEPROM, then caculations will be made. Time, approx. 20 sec.
Figure 1
The Block above shows the relationship of the DCU to the rest of the set. Note that the light being produced by
the CRTs is what is used by the sensors for Magic Focus. This allows the DCU to make adjustments regardless of
circuit changes, magnet influence or mechanical, by actually using the light on the screen to make judgments.
EEPROM AND SRAM SHOWN IN FIGURE 1: (8 Sensor Array only) (4 Sensor for Centering only).
Each color can be adjusted in any one of 117 different locations. The internal workings of the DCU can actually
make 256 adjustment points per color. These adjustment points are actual digital data stored in memory. This data
PAGE 04-01
represents a specific correction signal for that specific location. When the Service Technician makes any adjustment, the new information must be stored in memory, EEPROM. The EEPROM only stores the 117 different adjustment points data, the SRAM interpolates to come up the additional 139 adjustment points for a total of 256 per
color. The EEPROM data is slow in relationship to the actual deflection raster change. The SRAM is a very fast
memory. So, during the first application of AC power, the EEPROM data is read and the SRAM makes the interpolation and as long as power remains, interpolation no longer has to be made.
This can be seen during an adjustment. If the Interpolation key is pressed on the remote control, what is happening is that the SRAM must make those additional calculations beyond the 117 made by the Servicer and this is all
placed into memory.
INFRARED REMOTE CONTROL INPUT SHOWN IN FIGURE 1:
As can be seen in Figure 1, the Infrared Remote control signals actually manipulate the internal data when the
Service Only Switch is pressed on the Deflection PWB. This process actually prevents the Microprocessor from
responding to Remote commands, via a Busy line output from the DCU. (See Microprocessor Port Description
page for further details.)
INTERNAL CONTROLLER, D/A CONVERTERS SHOWN IN FIGURE 1:
The internal controller, takes the stored data and converts it to a complicated Convergence correction waveform
for each color. The Data is converted through the D/A converter, 1st and 2nd sample and hold, the Low Pass Filter that smoothes out the parasitic harmonic pulses from the digital circuit and the output Clamp that fixes the DC
offset level.
The DC offset voltage is adjusted by several things. (16X9 aspect SWX models with 8 Sensors only.)
• Raster Centering. The Raster Centering adjustment actually moves the DC offset voltage for Horizontal and
Vertical direction. This Offset voltage will move the entire raster Up or Down, Left or Right.
• Static Centering. This is accessed by holding down the Magic Focus button on the front control panel for
more that 10 Seconds. The word Static will come up on the screen, generated by the DCU, and using the remote controls up/down/left or right cursor buttons, the Red or Blue raster can again be moved up/down/left or
right. This allows adjustment of the entire raster for Red or Blue to match the Green Raster.
By holding down the Magic button for more that 5 seconds, but not more than 10, the word Center comes up on
screen. Again generated from the DCU. This adjustment only moves the center 60% of the raster for Red or Blue.
The assumption for this adjustment was related to the location of the Magic Focus sensors located on the outside
perimeter of the inside cabinet. It was assumed possible that the outside could have been corrected, but the inside
middle might not. This adjustment is rarely necessary if at all.
MAGIC FOCUS MEMORY SHOWN IN FIGURE 1:
NOTE: These sets have two Digital Convergence Memories. One for Normal display mode and one for 1080i
Through Mode display. (4X3 Aspect Models only).
Normal requires a complete Digital Convergence adjustment procedure along with Magic Focus Sensor Initialization and 1080i Through Mode does too! (4X3 Aspect Models only).
When a complete Digital Convergence procedure has been performed and the adjustment information stored in
memory by pressing the PROG button twice (2), it is mandatory to run Sensor Initialization. This is done by
pressing the PROG button on the remote once (1), then pressing the PIP CH button. This begins a preprogrammed generation of different light patterns. Magic Focus memory memorizes the characteristics of the light
pattern produced by the digital convergence module. If a convergence touchup is required in the future, the
customer simply presses the Magic Focus button on the front panel and the set begins another preprogrammed
production of different light patterns. This automated process duplicates the same light pattern it memorized from
the initialization process, re-aligns the set to the memorized convergence condition.
PAGE 04-02
“MAGIC FOCUS” SENSORS SHOWN ON FIGURE 1:
This process is a joint effort between the digital convergence module and 4 Photo-sensors, physically located on
the middle edges of the cabinet, just behind the screen. The physical placement of the sensors assures that they
will not produce a shadow on the screen that can be seen by the customer.
Magic is activated when the set is on and by pressing the Magic button inside the front control panel door. An onscreen graphic will be displayed to confirm that the automatic convergence mode (Magic Focus) has begun.
The digital convergence module produces different patterns for each CRT, and the sensors pick up the transmitted
light, generate a DC voltage. This voltage is sent to the DCU and converted to digital data and compared with the
memorized sensor initialization data. Distinct patterns will be generated in each primary color. As the process
continues, the digital module manipulates the convergence correction waveforms that it is producing to force the
convergence back into the original memorized configuration.
When all cycles have been completed, the set will return to the original signal and the convergence will be
corrected. In most cases, activating the Magic Focus will allow the set to correct itself, without further
adjustments.
EXPLANATION OF THE DIGITAL CONVERGENCE INTERCONNECT DIAGRAM:
INFRARED RECEIVER:
During normal operations, the IR receiver directs it signal to the Main Microprocessor where it interprets the incoming signal and performs a predefined set of operations. However, when the Service Only Switch is pressed,
the Main Microprocessor must ignore remote control commands. Now the DCU receives theses commands and
interprets them accordingly. The Microprocessor is notified when the DCU begins its operation by the BUSY
line. As long as the BUSY line is active, the Main Microprocessor ignores the IR signal.
ON SCREEN DISPLAY PATH:
MICROPROCESSOR SOURCE FOR OSD:
The On Screen Display signal path is shown with the normal OSD information such as Channel Numbers, Volume Graphic Bar, Main Menu, etc… sent from the Main Microprocessor to the Rainforest IC IC01 pins 37, 38
and 39. These are positive going pulses, about 5 V p/p and about 3uS in length dependant upon there actual horizontal time for display. (See the On Screen Display Path Circuit Diagram Explanation for further details).
DCU SOURCE FOR OSD:
The DCU has to produce graphics as well. When the Service Only switch is pressed, the Main Microprocessor
knows the DCU is Busy as described before. Now the On Screen Display path is from the DCU to the Rainforest
IC IC01 pins 33, 34 and 35.
The output for the DCU OSD characters is out the PDG connector pins (11 Dig Red, 12 Dig Green and 13 Dig
Blue). These are routed through their buffers (QK06 Dig Red, QK07 Dig Green and QK08 Dig Blue) to the
PDK1 connector pins (2 Dig Red, 4 Dig Green and 5 Dig Blue). Then through their buffers, (QC24 Dig Red,
QC23 Dig Green and QC22 Dig Blue). Then it arrives at the Rainforest IC IC01 at pins (35 Dig Red, 34 Dig
Green and 33 Dig Blue). When a character pulse arrives at any of these pins, the internal color amp is saturated
and the output is generated to the CRTs. Any combination for these inputs generates either the primary color Red,
Green or Blue or the complementary color Red and Green which creates Yellow, Red and Blue which creates Magenta or Green and Blue which creates Cyan.
(See the On Screen Display Path Circuit Diagram Explanation for further details).
OUTPUT STKs:
These are output amplifiers that take the correction waveforms generated by the DCU and amplify them to be
used by the Convergence Yoke assemblies for each color.
RV is Red Vertical Convergence correction. Adjust the location either up or down for Red.
RH is Red Horizontal Convergence correction. Adjust the location either left or right for Red.
GV is Green Vertical Convergence correction. Adjust the location either up or down for Red.
GH is Green Horizontal Convergence correction. Adjust the location either left or right for Red.
BV is Blue Vertical Convergence correction. Adjust the location either up or down for Red.
BH is Blue Horizontal Convergence correction. Adjust the location either left or right for Red.
PAGE 04-03
CONVERGENCE YOKES:
Each CRT has a Deflection Yoke and a Convergence Yoke assembly. The Deflection manipulates the beam in
accordance to the waveforms produced within the Horizontal Deflection circuit or the Vertical Deflection circuit.
The Convergence Yoke assembly manipulates the Beam in accordance with the correction waveforms produced
by the DCU.
MAGIC FOCUS SENSORS AND INTERFACE: (4 Sensor Array) Same for 8 Sensor Array.
Each of the four photo cells, called solar batteries in the service manual, have their own amps which develop the
DC potential produced by the cells. Each amp is routed through the PDS1 connector and arrives at the PDS connector on the DCU where the DCU converts this DC voltage to Digital signals. These digital signals are used only
when the Magic Focus Button is pressed and Magic Focus runs.
MICROPROCESSOR:
The Microprocessor is only involved in the Digital Convergence circuit related to IR (Infrared Remote Control
Signals). When the DCU is put into the Digital Convergence Adjustment Mode, DCAM, the Microprocessor ignores IR pulses. This is accomplished by the BUSY signal from the DCU. The BUSY signal is routed from the
DUC out the PDG connector pin 10, to the PDK1 connector pin 1, then the PSD1 connector pin 1 to the DAC1
I006 pin 1. Through I2 C data communications SCL1 and SDA1, the DAC1 IC tell the microprocessor that the
DCU is busy.
RAINFOREST IC (Video Processor).
The Rainforest IC, IC01 is only involved with the Digital Convergence circuit related to OSD.
SERVICE ONLY SWITCH:
The Service Only Switch is located just in front of the DCU on the Convergence Output PWB. If the front
speaker grills are removed and the front access panel is opened, the switch will be on the far left hand side. When
this button is pressed with the TV ON, the DCU enters the Digital Convergence Adjustment Mode.
If the button is pressed and held down with the TV OFF and the power button is pressed, the Digital Convergence
RAM is cleared. This turns off any influence from the DCU related to beam deflection. Magnetic centering is performed in the mode as well as the ability to enter the 3X3, (9 adjustment points) mode.
Note: For the 4X3 Aspect models only, this will clear RAM for the 1080i through mode as well.
MAGIC FOCUS SWITCH:
• Located on the Front Control panel is the Magic Focus switch. When Magic Focus is activated by the customer pressing this switch, the DCU enters the “MAGIC FOCUS” adjustment mode described earlier.
• However, this year there is a change as to how the Magic Focus Switch works.
• When the Customer presses the Magic Focus Switch, the low is sent to I007 pin 9 (DAC3). This IC communicates with the Microprocessor. The Microprocessor then communicates with I006 (DAC2) and it outputs a
low on pin 7 (Magic Sw). This in turn starts the Magic Focus function.
• Also this year, the Magic Focus can be started from the Customer’s Menu. When selected by the customer,
the same communication is performed to I006 (DAC2) and a low is sent out pin 7 to the DCU to start Magic
Focus.
MAGIC FOCUS MEMORY:
NOTE: These sets have two Digital Convergence Memories. One for Normal display mode and one for 1080i
Through Mode display. (4X3 Aspect Models only).
Normal requires a complete Digital Convergence adjustment procedure along with Magic Focus Sensor Initialization and 1080i Through Mode does too! (4X3 Aspect Models only).
PAGE 04-04
3
LED
S1, S3
S5 & S7
4 Total
Sensors
IR
+5V
S0
S1
GND S2
GND S3
GND S4
GND S5
S6
S7
GND
7
6
5
4
Dig B
Dig G
IR-In
Dig R
11
10
9
8
7
6
5
4
3
2
1
PDS1
DP17 Chassis use
8 Sensor Array
7
6
5
4
3
2
2
3
1
1
+5V SRAM
S0
S1
GND S2
GND S3
GND S4
GND S5
S6
S7
9
8
7
6
5
4
3
2
1
PDS
Gnd
Convergence PWB
From IK01
+5V Digital
7
V Blk PDK3 pin 5
15
6
5
14
13
12
8
11
10
9
4
3
2
1
D SIZE PDK3 pin 2
H Blk PDK3 pin 7
MAG SW
QK07
QK08
QK06
SK01
-5V
+5V
Dig OSD B
Dig OSD G
Dig OSD R
Service Only
Signal PWB
BUSY
Deflection
PWB
PSD1
PDK1
BUSY
MAG SW
Signal
PWB
Stby
+5V
Sensor
PWB
PFS
3
1
OSD R
OSD G
OSD B
"Mounted on
Deflection
PWB"
Digital
Convergence
Unit
"DCU"
"DCAM" Digital
Convergence Mode
UKDG
HC2153
PDG
9
8
7
6
4
5
2
1
Mute
RH
RV
GV
GH
BH
BV
PDC
BUSY
QC23
QC22
QC24
QC20
QC21
QC19
+33V
+28P
Rainforest
Dig OSD B
3
IK02
2
Normal "Lo"
1
43
42
41
V Squeez PDK3 pin 1
Not in 16 X 9 Models
49
33
Dig OSD G
Dig OSD R
34
OSD R
35
OSD G
OSD B
39
38
37
IC01
+28P
15
14
6
BV
+ -
+ -
+ -
+ -
+ -
5
4
2
1
3
3
4
1
2
PCR
CYH-
CYH+
CYV-
CYV+
CYV+
CYV-
+33V
16
18
13
11
7
9
CYH-
4
PCG
3
4
1
2
PCB
5
3
1
PZC
CYH+
CYH-
CYH+
CYV-
CYV+
-33V
16
18
13
11
7
9
Convergence PWB
+28V
10
RH
RV
IK04
GV
17 8 12
4
GH
BH
IK05
+ -
QC40
QC35
QC30
17 8 12
-28P
15
14
6
5
10
B
G
R
2H Video PWB
B
G
R
To Green Convergence Yokes
Not in the 43FDX10B
DP-15E Chassis
SM09 is
Convergence
Adjust in
43FDX10B
Ft. Control
PWB
IR Receiver
HMO1
2
2
IR In
3
15
OSD R 37
OSD G 38
OSD B 39
Main
Up
SDA1
2
14
SCL1
I001
6
5
To Blue Convergence Yokes
1
QM01
IR Out QM05
5
9
BUSY
SM09
1
DAC2
MAG SW
Magic Focus
D Size
from
DCU
pin 6
PDG
9
7
I006
9
DAC3
I007
DP-1X CHASSIS "DIGITAL CONVERGENCE" INTERCONNECTION CIRCUIT DIAGRAM
To CRTs
To Red Convergence Yokes
PAGE 04-05
REMOTE CONTROL CLU-5711 TSI (P/N HL01641)
USED IN MODELS:
61SWX10B, 61SWX12B
53SWX10B, 53SWX12B
43UWX10B, 53UWX10B
61UDX10B, 53UDX10B
43FDX11B, 43FDX10B
POWER
VCR
TV
CBL
SAT
SOURCE WIZARD
AV1
DVD
AV2
AV3
CURSOR DOWN
1
2
3
4
5
6
CURSOR RIGHT
7
8
9
RED (7 X 5)
CURSOR UP
CURSOR LEFT
0
SLEEP
LAST CH
RASTER PHASE
BLUE (13X9)
HELP
C.C.
ANT
MUT
E
SV
CS
VC
R
VID
+
WRITE TO
ROM
PRESS
(2X)
STA
INFO
TUS
GU
IDE
/TV
VID
PROG
CENTERING
FREEZE
PIP ACCESS
SWAP
TV/VCR
5
4
VID3
PIP CH
GREEN (3 X 3)
HD
SC
VID
2
PIP-MODE
CORRECTION
BUTTONS
CH
VID
PIP
INITIALIZE
PIP MODE +
PIP CH
PL
US
1
CALCULATE
CROSSHATCH
VIDEO
SELECT
VOL
PIX
EXIT
U
MEN
REMOVE
COLOR
ASPECT
READ OLD
ROM DATA
PRESS (2X)
SLOW
REC
HITACHI
CLU-5711TSI
PAGE 04-06
USED IN MODELS:
53SBX10B
POWER
VCR
TV
CBL
SAT
SOURCE WIZARD
CURSOR UP
AV1
DVD
AV2
CURSOR DOWN
CURSOR LEFT
1
2
3
4
5
6
CURSOR RIGHT
7
8
9
RED (7 X 5)
SLEEP
BLUE (13X9)
AV3
0
LAST CH
HELP
INPUT
MEN
REMOVE
COLOR
VOL
SV
CS
PIX
CROSSHATCH
VIDEO
EXIT
U
SELECT
MUT
E
VC
RP
LU
S+
CH
TUS
STA
INFO
HD
SC
GREEN (3 X 3)
CENTERING
PIP
WRITE TO
ROM
PRESS
(2X)
CORRECTION
BUTTONS
/TV
IDE
GU
CALCULATE
INITIALIZE
PIP MODE +
PIP CH
RASTER PHASE
PIP-MODE
PROG
PIP CH
FREEZE
PIP ACCESS
SWAP
TV/VCR
READ OLD
ROM DATA
PRESS (2X)
SLOW
REC
HITACHI
CLU-5712TSI
PAGE 04-07
REMOTE CONTROL CLU-4311UG (P/N HL01651)
Used with
60DX10B, 50DX10B
43GX10B, 50GX30B
HP-1X Chassis
READ OLD
ROM DATA
PRESS (2X)
POWER
TV
CBL/SAT
SWAP
DVD/VCR
MOVE
PIP
WRITE TO
ROM
PRESS (2X)
FREEZE
HELP
CENTERING
PIP CH
MENU
RASTER PHASE
REMOVE
COLOR
INITIALIZE
PIP MODE +
PIP CH
SELECT
CORRECTION
BUTTONS
MUTE
LAST CH
EXIT
CROSSHATCH
VIDEO
VOL
CH
CURSOR UP
CURSOR LEFT
BLUE (13X9)
1
2
3
CURSOR DOWN
4
5
6
CURSOR RIGHT
7
8
9
0
STATUS
INPUT
REC
TV/VCR
RED (7 X 5)
GREEN (3 X 3)
PIX
HITACHI
CLU-4311UG
PAGE 04-08
DIGITAL CONVERGENCE OVERLAY DIMENSIONS
NOTE: Aspect may not be correct but dimensions are correct.
43FDX10B & 43UDX10B OVERLAY DIMENSIONS (4 X 3) NORMAL MODE
874
11
34
42
71
77
71
71
71
H. SIZE
71
71
71
71
71
11
84
84
R
84
B
656
84
Centering Offset
84
PART NUMBER H312251
84
42
34
V. SIZE
RED OFFSET = 20mm
BLUE OFFSET = 25mm (43UDX)
BLUE OFFSET = 35mm (43FDX)
VERTICAL SIZE = 560mm
HORIZONTAL SIZE = 825mm
43FDX10B & 43UDX10B OVERLAY DIMENSIONS (4 X 3) V. SQUEEZE MODE
874
20
70
70
70
70
70
70
70
70
70
70
70
70
20
82
20
32
65
65
65
492
656
65
65
PART NUMBER H312252
65
32
20
82
V SQUEEZE 16 X 9 HD MODE
PAGE 04-09
53UDX10B OVERLAY DIMENSIONS (4 X 3) NORMAL MODE
1078
13
44
52
88
88
88
88
88
H. SIZE
88
88
88
88
88
13
103
103
R
103
B
808
103
Centering Offset
103
PART NUMBER H312253
103
52
44
V. SIZE
RED OFFSET = 15mm
BLUE OFFSET = 25mm
53UDX10B OVERLAY DIMENSIONS (4 X 3) V. SQUEEZE
1078
20
69.5
69.5
69.5
69.5
69.5
69.5
69.5
69.5
69.5
69.5
69.5
69.5
20
82
19.9
32.3
64.6
64.6
64.6
606
808
64.6
64.6
PART NUMBER H312254
64.6
32.3
19.9
82
PAGE 04-10
61UDX10B OVERLAY DIMENSIONS (4 X 3) NORMAL MODE
1240
15.2 100.8 100.8 100.8 100.8 100.8
48.5
59.5
H. SIZE
100.8 100.8 100.8 100.8 100.8 15.2
119
119
R
119
B
930
119
Centering Offset
119
PART NUMBER H312255
119
59.5
48.5
V. SIZE
RED OFFSET = 15mm
BLUE OFFSET = 15mm
61UDX10B OVERLAY DIMENSIONS (4 X 3) V SQUEEZE MODE
1240
27.8
98.7
98.7
98.7
98.7
98.7
98.7
98.7
98.7
98.7
98.7
98.7
98.7
27.8
116
28.4
45.8
91.6
91.6
91.6
698
930
91.6
91.6
PART NUMBER H312256
91.6
45.8
28.4
116
PAGE 04-11
43UWX10B" OVERLAY DIMENSIONS (16 X 9 Aspect)
952
20
25.7
34.5
76
76
76
76
76
H. SIZE
76
76
76
76
76
20
69.1
69.1
R
69.1
B
535
69.1
Centering Offset
69.1
PART NUMBER H312259
69.1
34.5
25.7
RED OFFSET = 25mm
BLUE OFFSET = 30mm
V. SIZE
53UWX10B & 53SWX10B/12B OVERLAY DIMENSIONS (16 X 9 Aspect)
1173.2
25 93.6
31.8
42.6
93.6
93.6
93.6
93.6
H. SIZE
93.6
93.6
93.6
93.6
93.6
25
85.2
85.2
R
85.2
B
660
85.2
Centering Offset
85.2
PART NUMBER H312257
85.2
42.6
31.8
V. SIZE
RED OFFSET = 20mm VERTICAL SIZE = 580mm
BLUE OFFSET = 25mm HORIZONTAL SIZE = 1060mm (53UDX)
HORIZONTAL SIZE = 1105mm (53SWX)
PAGE 04-12
61UWX10B & 61SWX10B/12B OVERLAY DIMENSIONS (16 X 9 Aspect)
1350
28.8 107.7 107.7 107.7 107.7 107.7
36.6
49.2
H. SIZE
107.7 107.7 107.7 107.7 107.7 28.8
98.4
98.4
R
98.4
B
762
98.4
Centering Offset
98.4
PART NUMBER H312258
98.4
49.2
36.6
V. SIZE
RED OFFSET = 15mm
BLUE OFFSET = 25mm
PAGE 04-13
DP-1X OVERLAY PART NUMBERS
Below is the jig screen part number for the 2H models.
2001 Models
HITACHI MODELS:
H312251 43” 4x3 Full Mode
H312252 43” 4x3 V Squeeze Mode
H312259 43” 16x9
H312257 53” 16x9
H312258 61” 16x9
PHILIPS MODELS:
H312261 60” Phillips 4x3 Full Mode
H312262 60” Phillips 4x3 V Squeeze Mode
H312264 55” Philips 4x3 V Squeeze Mode
ZENITH MODELS:
H312265 56” Zenith 16x9
H312266 65” Zenith 16x9
PAGE 04-14
VIDEO
INFORMATION
DP-1X CHASSIS
SECTION 5
PAGE 05-01
Aux 3 S-C
Aux 3 S-Y
Aux 3 Video
Aux 2 S-C
Aux 2 S-Y
Aux 2 Video
Aux 1 S-C
Aux 1 S-Y
Q506
Q505
Monitor Out S-Y
Monitor Out S-C
Monitor Out Video
Aux 5 Video
Aux 4 Video
TERMINAL PWB
MON
OUT
V5
V4
Front Control PWB
S3
V3
S2
V2
S1
V1
Aux 1 Video
Sub Tuner
U502
Main Tuner
U501
SIGNAL PWB
5
3
10
PFT
18
13
PST1
37 C Out 3
39 Y Out 3
MON
OUT
C Out 2 47
MAIN OUT
V/Y Out 2 44
Y Out 1 56
SUB OUT
C Out 1 58
QX06
QX05
Q551
-6db
Q552
6 C In
40 Y In
Q553
Sub Y Out 20
Sub Cb Out 21
Sub Cr Out 22
SUB Video/Chroma
Processor
IX03
To
IX04/
IX05
TERMINAL PWB
Q564 Q554
C AMP C LPF
Q312 Q311 Q310 X302 Q309
Y AMP Y LPF
Q316 Q315 Q314 X303 Q313
I502
83
84
88
C Out
Y Out
V In
I301
3D Y/C
Separator
I501 MAIN
Video/Chroma
9
Processor
6
40 Y In
8
Main Cr Out 22
Q558 Q557
14
5
6 C In
Main Cb Out 21
11
Chroma Tilt
Correction
Main Y Out 20
VIDEO LPF
Q307 Q306 Q304
QX12
SIGNAL PWB
PST2
18
13
7
9
11
QX08
QX11
3 C Out
C In 1 51
QX09
1 Y Out
Y In 1 49
41 V Out 3
60
1
26
24
22
12
10
8
19
17
15
30
63
IX02
4
For PinP Only
2Line Y/C
Separator
QX07
V In
V Out 1 53
IX01
A/V Select
DP-1X Chassis Video Signal Path - NTSC
PAGE 05-02
QX13
QX14
QX15
Q553
Q552
11
9
7
PST2
Q551
TERMINAL PWB
V5
V4
Sub Y Out 20
Sub Cb Out 21
Sub Cr Out 22
SUB
Video/Chroma
Processor
IX03
Main Y Out 20
Main Cb Out 21
I501
MAIN
Video/Chroma
Processor
Main Cr Out 22
SIGNAL PWB
Digital Conv.
Unit
Dig B Out 13
Dig G Out 12
Dig R Out 11
PDG
CONVERGENCE PWB
QK08
QK07
QK06
MAIN Cr (NTSC)
MAIN Cb (NTSC)
MAIN Y (NTSC)
MAIN Cr (NTSC)
MAIN Cb (NTSC)
MAIN Y (NTSC)
COMP 2 (Y)
COMP 2 (Cb/Pb)
COMP 2 (Cr/Pr)
1
2
3
COMP 2 (Y)
COMP 2 (Cb/Pb)
COMP 2 (Cr/Pr)
43 COMP 1 (Y)
41 COMP 1 (Cr/Pr)
42 COMP 1 (Cb/Pb)
33 SUB Cr (NTSC)
34 SUB Cb (NTSC)
35 SUB Y (NTSC)
7
8
9
1
2
3
41 COMP 1 (Cr/Pr)
42 COMP 1 (Cb/Pb)
43 COMP 1 (Y)
33 SUB Cr (NTSC)
34 SUB Cb (NTSC)
35 SUB Y (NTSC)
7
8
9
I001
Microprocessor
4
4
(Y) SUB OUT
(Cb/Pb) SUB OUT
(Cr/Pr) SUB OUT
IX05
Y/Pb/Pr
Selector
(SUB)
(Y) MAIN OUT
(Cb/Pb) MAIN OUT
(Cr/Pr) MAIN OUT
IX04
Y/Pb/Pr
Selector
(MAIN)
OSD G 38
OSD B 39
OSD R 37
5
2
2
5
PSD1
27
26
25
27
26
QX19
QX20
QX21
QX22
QX18
25
QX23
16
18
20
4
6
8
PST3
QC19
QC20
QC21
SIGNAL PWB
PDK1
DEFLECTION PWB
QC22
QC01
QC02
17
18
19
3
4
5
QC03 PFC1
UC01
FC3
UNIT
QC09
QC08
QC07
QC23
QC24
16
18
20
5
3
Y 1 In
B Out 41
G Out 42
R Out 43
To
CPT
PWBs
SIGNAL PWB
QC06
QC05
QC04
4
Y 2 In
Pr 1 In Pb 1 In
PFC2
8
Pb 2 In
Pr 2 In
10
9
OSD B In
OSD G In
OSD R In
37
38
39
33 Analog B In
IC01
35 Analog R In RGB
Processor
34 Analog G In
DP-1X Chassis Video Signal Path - NTSC,Component, OSD
DP-1X RAINFOREST IC INFORMATION (IC01)
SCP IN
FBP IN
Max 9V
YM/P-MUTE/
BLK
6.2 ~ 9V Blanking
3.7 ~ 9V
CLAMP
2.4 ~ 5.8V P Mute
H-AFC 3.0V
BLK 1.5V
1.7 ~ 3.3V
Black Peak
Pin 17
Pin 24
0.9 ~ 2.1V Half Tone
0 ~ 0.5V Internal
Pin 52
Pin 17 = SCP.
Black Peak: This input is utilized for establishing the Black Peak level used in Black Peak expansion
circuit. Here the Black Peak is expanded towards Black to increase the contrast ratio.
CLAMP: The clamp pulse is utilized for DC restoration and blanking timing.
Pin 24 = FBP. Combination of the following.
Fly back pulse: 1.5V ~ 3.0V H-AFC: This input is received from the Horizontal Blanking (H. Blk)
signal generated in the Deflection circuit by Q706. This signal is used as a sample pulse in the
Horizontal AFC circuit, which synchronizes the Horizontal Drive signal with the incoming Video sync
signal input at pin 16. In Through Mode, pin 8.
Fly back pulse: 3.0V ~ 9.0V Max: This input is received from the Flex Converter and is a
combination of Horizontal and Vertical blanking signals.
H Blk from the Flex Converter Pin 12 through QC15
V Blk from the Flex Converter Pin 4 through QC14
Used within the Rainforest is for DC restoration, Pedestal level detection and Clamping signals, such
as Burst Gate Pulse.
Pin 52 = YM/P-MUTE/BLK. Combination of the following.
INTERNAL: 0.0V ~ 0.5V Used internal within the Rainforest IC.
HALFTONE: 0.9V ~ 2.1V: This input is received from the Microprocessor and is used to establish
the Transparency effect of OSD. This also mutes the video in exact timing with On Screen Display
pulses (OSD). Half Tone from the Microprocessor Pin 40 through QC16.
P MUTE: 2.4V ~ 5.8V: This input is received from the Video Mute Circuit and blanks the picture
when there a loss of Vertical or Horizontal Sweep, AC is lost or the Microprocessor output a V Mute
High signal during Channel Change, Child Lock, etc. Audio is also Muted during this time. See below
for routing.
V MUTE from the Microprocessor Pin 56 through D019, Q023, Q022, QC17 to pin 52 of IC01.
AC LOSS through Q024, D021, to Q023, Q022, QC17 to pin 52 of IC01.
VERTICAL SWEEP LOSS through QN05, QN04, QN02, PSD2 connector pin 3, D020 to Q023,
Q022, QC17 to pin 52 of IC01.
HORIZONTAL SWEEP LOSS through QN01, QN03, QN02, PSD2 connector pin 3, D020 to Q023,
Q022, QC17 to pin 52 of IC01.
PAGE 05-03
DP-1X Automatic Brightness Limiter (ABL) Circuit Diagram Explanation
(See Circuit Diagram on page 05-05)
The ABL voltage is generated from the ABL pin (3) of the Flyback transformer, TH01. The ABL pull-up
resistors are RH27 and RH28. They receive their pull up voltage from the B+ 115V2 ) line for Deflection
generated from the Power Supply via TP91 pin 11, rectified by DP15, filtered by CP32 and then routed through
the excessive current sensing resistor RP24.
ABL VOLTAGE OPERATION
The ABL voltage is determined by the current draw through the Flyback transformer. As the picture brightness
becomes brighter or increases, the demand for replacement of the High Voltage being consumed is greater. In
this case, the Flyback will work harder and the current through the Flyback increases. This in turn will decrease
the ABL voltage. The ABL voltage is inversely proportionate to screen brightness.
Also connected to the ABL voltage line is DH16. This zener diode acts as a clamp for the ABL voltage. If the
ABL voltage tries to increase above 11V due to a dark scene which decreases the current demand on the flyback,
the ABL voltage will rise to the point that DH16 dumps the excess voltage into the 11 line.
ACCL TRANSISTOR OPERATION
The ABL voltage is routed through the PSD2 connector pin 2, through the acceleration circuit RC62 and DC02
to the base of QX18. Under normal conditions, this transistor is nearly saturated. QX18 determines the voltage
being supplied to the cathode of DC01, which is connected to pin 53 of the Rainforest IC, IC01. During an ABL
voltage decrease due to an excessive bright circumstance, the base of QX18 will go down, this will drop the
emitter voltage which in turn drops the cathode voltage of DC01. This in turn will pull voltage away from pin 53
of the Rainforest IC, IC01. Internally, this reduces the contrast and brightness voltage which is being controlled
by the I2C bus data communication from the Microprocessor arriving at pins 30 and 31 of the Rainforest IC and
reduces the overall brightness, preventing blooming as well as reducing the Color saturation level to prevent color
smear.
SUB BRIGHTNESS ADJUSTMENT - I2C Alignment
The purpose for the Sub Brightness Adjustment alignment is to set up the Lowest DC level to which the
Brightness control voltage can be set. Again, this voltage is controlled internally within IC01 via I2C bus data
from the Microprocessor arriving at pins 30 and 31. The adjustment is performed within the Service Menu. To
enter this adjustment menu, with the set turned off, press and hold the Input button, then press the Power button.
This will bring up a Service Menu. In the first Page of the menu, the 2nd selection is Sub Bright Adj [SUB
BRT]. Selection is made using the cursor Up/Down buttons and adjusting the data values are made using the
Cursor Left/Right buttons.
In the field it is very difficult to make this adjustment according to factory specifications. However, there is a
relatively easy way to do this adjustment and get if relatively close to factory specs.
1) Start adjustment 20 minutes or more after the power is turned on.
2) Receive a tuner signal.
3) Set the contrast and color controls to minimum.
4) Set the brightness to minimum position on the display.
5) The room light should be very low.
ADJUSTMENT PROCEDURE
Adjust Sub Brightness (Number 2) SUBBRT, so that only the brightest points of the picture can be seen on
screen.
USING A GENERATOR:
1. Use the input signal below, (GRAY SCALE)
2. Adjust Sub Brightness (Number 2), so that the first bar sinks to black and the second bar is slightly
visible, using I2C Bus alignment procedure.
PAGE 05-04
PAGE 05-05
Signal
PWB
2
PSD2
60
59
SDA2
SCL2
CC3110
RC61
RH32
DH15
Deflection
B+ 115V V2
33K
RH29
56K
RH28
XRayProtect
CH18
ABL Pull-Up Resistors
3
Sw +11V
LH01
Deflection PWB
Clamp
Signal
PWB
To Anodes
DH16
RH31
CH14
ABL RH21
30 SCL2
To Focus
IC01
Rainforest
IC
IC01
31 SDA2
53
TH01
[ Current Path ]
27K
RH27
10
9
CC27
ABL
To QH01
Collector of High Voltage
Output Transistor
CC28
DC01 RC57
As Brightness goes Up, ABL Voltage goes Down. (Inverse Proportional)
NOT IN 16X9 MODELS
Q701
RC83
RC82
RC59
RC58
SW +9V
Side Pin Cushion
Modulator
CC30
RC60
QC18
To Side
Pin Cushion
Circuit
V SQU
RH30
QH03
R750
High Voltage B+ 115V V2
C727
Microprocessor
I001
DC02
RC62
DP1X CHASSIS A.B.L. CIRCUIT DIAGRAM
V2
V1
S Det.
Aux Inputs
Q506
Q505
S-Y3
S-C3
V3V
Q434
Q437
Input 5
Q433
18
13
Main
Video
NTSC
Component Y
8
S-Y2
10
S-C2
12
QX04
1
44
Terminal PWB
Main Y
/Video
QX05
3
1
PST2
Sub Video
53
Input 5
Comp2 In 60
Comp1 In
Input 4
For 480i
Comp
Only CCD
& V Chip
VOut2
VOut1
IX01
30 PinP
Video
63
24
26
22
15
S-Y1
17
S-C1
19
TV2V
TV1V
PST1
5
3
10
PFT
Q431
S Det.
S Det.
Input 4
S-2 In
Composite 2 Aux Input 2
S-1 In
Composite 1 Aux Input 1
PinP TUNER (Mono) 18
Always PinP
U502
18
Signal PWB 2 of 2
Front Control PWB
U501
Main Tuner
S-3 In
Avx 3 In
3V
Aux Input 3
Composite 3
Lum/Audio Selector IC
Q012
Q561
VBlk
HBlk
Q009
Q563
Hi
13
1
55
49
Data
SDSel 9
Q014
SIGNAL PWB 1 of 2
Main for
CCD &
28 V Chip
15
14
Q016
Q015
9 10 11
Lo = MAIN
Hi = SUB
Q017
Main Sub
SD Det
Micro 24
Processor
Q013
Sub for
30 V. Chip
Q005
Q006
I001
Y0
X0
Y1
X1
I005
Main/Sub
6
AFC
Main AFC 2
Sub AFC
12
Q011 Q010 Lo
Sync Sep
Q008 Q007
Sync Sep
DP-1X SERIES CHASSIS NTSC SYNC SIGNAL PATH
See Main/Component Sync
Separation Circuit Diagram
PAGE 05-06
Flex Converter
SIGNAL PWB
NTSC
Main Video
Prepration IC
I501
See Video
Signal Path
See Video
18
Signal Path
PROut
20
YOut
13
14
14
15
7
V Sync
H Sync
SViN
SHiN
14
13
PTS2
13
14
10
10 H.Sync
5
4
6
3
13
11
10
12
4
3
IX08
14
Select
2 11
1
2
2
1
2
12
13
15
TERMINAL PWB
Main H. Sync Not
through IX08
Sub V. Sync
Sub H. Sync
Main V. Sync Not
through IX08
H.Sync
Out
22
14
4
4
10 Select 3
12
13
10 Select 3
15
IX06
IX07
1
2
Select 2 11
V.Sync
Out
23
Sub
V.Sync 37
11 V.Sync
Shown Twice
MViN
IX04
36 Sub H Sync
Main
43 Y Pr/Pb
Input 5 Y
Selector
3
Input 4 Y
PFC1
PTS3
MHiN
UC01 8
11
FC3
16
Unit
PBOut
PFC2
Select 4
Hi : 3 to 4
Lo : 5 to 4
Select 3
Hi : 2 to 15
Lo : 1 to 15
Select 2
Hi : 13 to 14
Lo : 12 to 14
See
Component
Signal Path
2
1
IX07
2
1
IX06
3
5
9 Select 2
From
IX03
9 Select 4
5
3
Sub
YPr/Pb
Selector
Sub H
Sync
Shown Twice
Input 5 Y
Input 4 Y
23 V Sync
37 Sub V Sync
V.Out
22
H.Out
36
10 H Sync
IX05
11 V Sync
Sub H
14 Sync Out
9
Sub C
Main Y
From
3 D Y/C
6
40 Sub Y
43
3
35 Sub Y
From
Selector
IC IX01
NTSC
Sub
Video
Chroma
Preparation
IC
Sub V
13 Sync Out
IX03
DP-1X SERIES CHASSIS MAIN/COMPONENT SYNC SEPARATION SIGNAL PATH
Sub V Sync
PAGE 05-07
ADJUSTMENT
INFORMATION
DP-1X CHASSIS
SECTION 6
DP-1X CHASSIS ADJUSTMENT ORDER
It is necessary to follow an order when doing adjustments in the DP-1X chassis.
DP-1X SERVICE ADJUSTMENT ORDER “PREHEAT BEFORE BEGINNING”
Screen Format
Signal
DCU Data
Pre HEAT (30 Minutes)
Normal Mode
NTSC
N/A
1
Cut Off
Normal Mode
NTSC
N/A
2
Pre Focus Lens and Static
Normal Mode
NTSC
N/A
3
DCU Phase Data Setting
Normal Mode
NTSC
N/A
4
DCU Phase Data Setting
16X9 HD
2.14H
HD Not for
16X9 Models
5
Horz. Position Adj. (Coarse)
Normal Mode
NTSC
N/A
6
Horz. Position Adj. (Coarse)
16X9 HD
2.14H
N/A
7
Raster Tilt
Normal Mode
NTSC
CLEAR
8
Beam Alignment
Normal Mode
NTSC
CLEAR
9
Raster Position
Normal Mode
NTSC
CLEAR
10
Vertical Size Adjust
Normal Mode
NTSC
CLEAR
11
Horz. Size Adjust
Normal Mode
NTSC
CLEAR
12
Beam Form
Normal Mode
NTSC
13
Lens Focus Adjust
Normal Mode
NTSC
14
Static Focus Adjust
Normal Mode
NTSC
15
Blue Defocus
Normal Mode
NTSC Color Bar
16
White Balance Adjustment
Normal Mode
NTSC
17
Sub Brightness Adjustment
Normal Mode
NTSC
18
Sub Picture Adjustment
Normal Mode
NTSC
19
Horz. Position Adjust (Fine)
Normal Mode
NTSC
20
Horz. Position Adjust (Fine)
16X9 HD
2.14H
21
DCU Character Set Up
Normal & HD
NTSC/1080i
22
DCU Pattern Set Up
Normal & HD
NTSC/1080i
23
Convergence Alignment
Normal & HD
NTSC/1080i
24
Sensor Initialize
Normal & HD
NTSC/1080i
25
PIP Amplitude Adjustment
Normal Mode
NTSC
Order
Adjustment Item
Clear to start
HD Not for
16X9 Models
HD Not for
16X9 Models
HD Not for
16X9 Models
HD Not for
16X9 Models
PAGE 06-01
DP-1X CHASSIS PRE-HEAT RUN ADJUSTMENTS
PRESET EACH
3. Focus VR on focus pack.
Pre Set fully clockwise.
ADJUSTMENT VR TO
CONDITION AS SHOWN:
1. Before Pre Heat Run.
Enter I2C Service Menu.
Allow set to operate at
Pre-set the Green DRV
and Red DRV to 3F. This
least 30 Minutes before
is considered “Center”
beginning adjustments.
position.
(With power Off, press the
SOURCE button on front
panel and then press the
POWER ON button then
release. The Service Menu
is displayed.)
2. SCREEN VR ON
FOCUS PACK.
Pre Set fully counter
clockwise.
FOCUS VR
SCREEN VR
Screen VR
R
G
Focus VR
B
R
G
B
FOCUS PACK
Projection Front View
RED CRT
GREEN CRT
BLUE CRT
PAGE 06-02
DP-1X CHASSIS CUT-OFF (SCREENS) ADJUSTMENT
2) Set R DRV (COOL) to
8) Repeat for the other two
colors.
center data value (3F).
3) Set G DRV (COOL) to
9) Exit SERVICE by pressing the cursor on remote to
center data value (3F).
4) Set R, G, and B CUTOFF
the left [◄ ].
(COOL) data settings to
10)Exit SERVICE MENU by
pressing the MENU key
[80].
5) Adjust Screen VRs on Foon remote.
cus Pack fully counter
clock wise.
6) Choose SERVICE item [1]
of I2C ADJ. Mode. Select
ADJUSTMENT
CURSOR RIGHT [!] and
PROCEDURE:
1) Go to I2C ADJ. Mode.
the Vertical will collapses.
(With power Off, press the 7) Adjust any Screen VR.
Screen VR should be
SOURCE button on front
turned clockwise gradually
panel and then press the
POWER ON button then
until that particular color
release. The Service Menu
is barely visible.
is displayed.)
ADJUSTMENT
PREPARATION:
• Pre Heat Run should be
finished.
• Be sure Screen Color
Temperature setting is in
the COOL mode on Customer’s Menu.
• Room Light should be
minimal.
Screen VR
R
G
Focus VR
R
G
B
B
FOCUS PACK
RED CRT
GREEN CRT
BLUE CRT
PAGE 06-03
DP-1X CHASSIS PRE-FOCUS ADJUSTMENT
ADJUSTMENT
PREPARATION:
A) Pre Heat Run should be
finished.
FOCUS ADJUSTMENT:
1) Short the 2pin subminiature connector on the
CRT PWB (PTS), to
remove any color not
being adjusted and adjust
one color at a time. (The
adjustment order of R, G
and B is just an example.)
2) Adjust the Focus VR for
Red until Focus is
achieved. (A Fine Adjustment will be made later.)
3) Repeat for Blue and
Green.
NOTE:
• PTSR connector on RED
CRT PWB.
• PTSG connector on GREEN
CRT PWB.
• PTSB connector on BLUE
CRT PWB.
Screen VR
R
G
Focus VR
B
R
G
B
FOCUS PACK
RED CRT
GREEN CRT
BLUE CRT
PAGE 06-04
DP-1X CHASSIS DCU CROSSHATCH PHASE ADJUSTMENT
should now appear in the
Adjustment Preparation:
TWICE to store the
• Cut Off adjustment should
information.
16X9 HD mode.
be finished.
9) When Green dots are
• Video Control: Brightness
displayed, press the
*DCA stands for (Digital
90%, Contrast Max.
MUTE key twice to reConvergence Adjustment)
turn to DCAM grid.
Adjustment Procedure:
16X9 HD Mode Adjustment
NORMAL MODE
1) Receive any NTSC signal. Mode: (Not for 16X9 Models)
2) Screen Format is Normal 10) Change the Display
Format to 16X9 HD
3) Press the SERVICE
Mode.
ONLY switch on the Con11) Repeat steps 3 through 9
vergence PWB to enter
DCAM.
for the 16X9 HD mode.
4) Press the HELP key on
the Remote, Green Cross Shortcut to change to
hatch appears.
16X9 HD MODE
5) Then press the EXIT key. NOTE: Remote still in DCA
mode.
(This is the Phase
a) Press the EXIT key on
adjustment mode).
Remote Control 5 times
6) Adjust data value using
to exit to video mode.
the keys indicated in the
b) Change input to receive
chart, until the data
1080i signal.
matches the values indic) Change format to 16X9
cated in the chart.
HD. Top and bottom panels should now be black.
Exiting Adjustment Mode:
7) Press Help key on remote d) Exit Menu.
control.
e) Press the Service Only
Switch. DCAM grid
8) Press PIP MODE key
PHASE MODE
Display Format
NORMAL
Display Format
16X9 HD
Address
Data Value
Address
Data Value
4 and 6 keys on Remote
PH-H
BF
PH-H
BF
2 and 5 keys on Remote
PH-V
07
PH-V
07
Cursor Left ! and Right " on Remote
CR-H
4C
CR-H
4C
Cursor Up # and Down $ on Remote
CR-V
0C
CR-V
0C
ADJUST USING
PAGE 06-05
DP-1X CHASSIS HORIZONTAL PHASE (COARSE) ADJUSTMENT
90%,
• Contrast Max.
Adjustment Procedure
NORMAL MODE:
1) Receive any NTSC crosshair signal.
2) Screen Format is NORMAL.
ONLY switch on the convergence PWB and display the Digital Convergence Crosshatch pattern.
4) Mark the center of the
Digital Convergence
Crosshatch Pattern with
finger.
ONLY switch to return to
normal mode.
6) Enter the I2C Service
Menu and select Item H
POSI and adjust the data
so that the center of
Video matches the location of the Digital Crosshatch pattern noted in step
{4}.
7) Exit from the I2C Menu.
16X9 HD mode can now
be changed.
16) Adjust the data up or
down slightly.
18) Change Screen Format to
8) Receive any 1080i
16X9 HD mode.
19) Confirm that the Center
(2.14H) signal.
9) Change Screen Format
of Video matches the
Center of the DCU Cross16X9 HD mode.
hatch determined in step
(11).
ONLY switch on the deflection PWB and display 20) If the Horizontal Position
isn’t correct, repeat steps
the Digital Convergence
(8) through (18) until cenCrosshatch pattern.
ter is matched.
Digital Convergence
Crosshatch Pattern with NOTE: To enter the I2C Bus
alignment menu, with Power
finger.
Off, press the INPUT button
ONLY switch to return to and hold it down, then press
the POWER button and renormal mode.
13) Power Set OFF and back lease. I2C adjustment menu
ON or change FORMAT will appear.
to NORMAL.
14) Enter the I2C Bus alignment menu and select
Item [9] H POSI
15) Press SELECT key on
Remote Control. (H
POSI) option is changed
to HD mode. H POSI H
appears). H POSI data of
16X9 HD Mode Adjustment:
NOTE: I2C Service Menu
Can Not be entered in the
16X9 HD Mode.
PAGE 06-06
DP-1X CHASSIS TILT (RASTER INCLINATION) ADJUSTMENT
• The set can face any direction.
• Receive the Cross-Hatch
Signal
• VIDEO CONTROLS:
Factory Preset.
• SCREEN FORMAT:
should be NORMAL mode.
• The lens focus should have
been coarse adjusted.
• The electrical focus should
have been coarse adjusted.
• The Digital Convergence
RAM should be cleared.
(Turn power off, press and
hold the SERVICE ONLY
switch on the Convergence
PWB, then press the
POWER button).
Adjustment Procedure :
GREEN:
1) Apply covers to the RED
and BLUE lenses or short
the 2P Sub Mini connector
[PTS] on R&B CRT PWB
to produce only GREEN.
2) Turn the Green deflection
yoke and adjust the TILT
until the green is level.
3) [+/- 2mm tolerance]. See
diagram.
BLUE:
6) Remove cover or PTS
short from BLUE and
cover the RED CRT.
Align BLUE with
GREEN.
7) [+/- 1mm tolerance when
compared to Green]
After Completion:
8) Tighten DY Yoke Screws
to 12+/-2 kg-cm.
9) REMOVE ALL COVERS
or SHORTS on the PTS
RED:
4) Remove cover or PTS
connectors.
short from RED CRT and 10)Turn the power off.
align RED with GREEN.
5) [+/- 1mm tolerance when
compared to Green]
l =< 2mm
l
Vertical Center axis of
Cross-Hair signal
PAGE 06-07
DP-1X CHASSIS BEAM ALIGNMENT ADJUSTMENT
Preparation for adjustment:
• Pre Heat, Pre-optical focus, DCU
Phase Data, H. POSI Course and
Raster Tilt adjustment should be
completed.
• Brightness: 90%
• Contrast Max.
• Receive cross hatch signals, or
dot pattern
• RASTER TILT adjustment
should be finished.
• SCREEN FORMAT should
• be NORMAL mode.
Adjustment procedure:
1) Green (G) tube beam alignment
adjustment:
Short-circuit 2P subminiature
connector plug pins of Red (R)
and Blue (B) on the CRT boards
and project only Green (G).
2) Put Green (G) tube beam alignRed and Blue in the same way.
ment magnet to the cancel state 9) Red (R) focus on focus pack.
as shown in Figure 1.
10) Blue (B) focus on focus pack.
3) Turn the Green (G) static focus 11) Upon completion of adjustVR counterclockwise all the
ment, place a small amount of
way and make sure of position
white paint on the beam alignof cross hatch center on screen.
ment magnets, to assure they
4) Turn Green (G) static focus VR
don’t move. (If available).
clockwise all the way.
5) Turn two Beam alignment magnet in any desired direction and
move cross hatch center to position found in step (3). (See Figure 2 below).
6) If image position does not shift
when Green static focus VR is
turned, adjustment complete.
7) If image position does move,
repeat steps [2] through [6].
8) Conduct beam alignment for
Figure 1
PICTURE TUBE SIDE
ADJUSTMENT
BEAM SHAPE &
TABS
ALIGNMENT MAGNET
4-POLE BEAM SHAPE
CORRECTION MAGNET
ZERO FIELD SPACER
(NO ADJUSTMENT)
The figure shows that the long and
short knobs of the 2P magnet are
aligned, this is the cancel state.
NOTE: This is the Centering Magnet not
the Beam Alignment Magnets.
This is just shown for reference, but the
principle remains the same.
2-POLE BEAM
ALIGNMENT MAGNET
Figure 2
PAGE 06-08
DP-1X CHASSIS RED AND BLUE RASTER OFF SET ADJUSTMENT
INFORMATION:
Raster Off set is necessary to conserve Memory allocation.
It is very important to remember that the Red is off-set Left of Center and Blue is off-set Right of center.
Please use the following information to accurately offset Red and Blue from center.
Also see Overlay Dimensions for further details.
Preparation for adjustment:
• With Power Off, press the Service Only switch on the Convergence PWB. While holding the Service Only
Switch down, press the Power On button and Release. DCU Grid will appear without convergence correction. NOTE: After entering DCAM, with each press of the Service Only Switch, the picture will toggle between Video mode and DCU Grid.
• Video Control should be set at Factory Preset condition.
• Static Focus adjustment should be finished.
1. Turn the centering magnets of Red, Green and Blue and adjust so that the center point of the cross-hatch
pattern satisfies the diagram below. (DCU data is cleared). Remember Green is Centered. Red is to the left
of Green and Blue is to the right of Green as indicated below.
• All Vertical positions are geometric center of screen.
• Parameters are +/- 2mm.
DP15/DP15E/
DP15F
L1
L2
DP14G
61 inch
15mm
15mm
61 inch
15mm 25mm
61 inch 15mm 25mm
53 inch
15mm
25mm
53 inch
20mm 25mm
53 inch 20mm 25mm
43 inch
20mm
25mm (43UDX)
35mm (43FDX)
43 inch
25mm 30mm
Red
L1
L2
DP17
L1
L2
Blue
Geometric
Vertical Center
L1
L2
Green
Geometric Horizontal Center
PAGE 06-09
DP-1X VERTICAL SIZE ADJUSTMENT
NOTE: Centering magnet
3) Select GREEN (A/CH)
VERTICAL SIZE:
1) Receive an NTSC signal.
and press the MENU but- may be moved to facilitate.
ton to remove Red and
2) With Power Off, press the
Distance is important, not
Blue.
Service Only switch on the
centering.
Convergence PWB. While 4) Adjust using R607
(Vertical Size Adj. VR) to NOTE: The Vertical Freholding the Service Only
match marks on the Over- quency is shared between
Switch down, press the
lay. (See Figure Below)
Power On button and ReNormal and 16X9 HD
lease. DCU Grid will apmodes.
pear without convergence
correction. NOTE: After
entering DCAM, with
Alternate Method:
each press of the Service
Adjust Vertical Size until the
Only Switch, the picture
size matches the chart below.
will toggle between Video
mode and DCU Grid.
VERTICAL SIZE
Vertical Hash
Mark
Between the horizontal line at the top and
the bottom.
l
5th LINE
FROM CENTER
Vertical Hash
Mark
DP15/DP15E/DP15F
L=
DP14G/DP17
L=
61 inch
795mm
61 inch
665mm
53 inch
690mm
53 inch
580mm
43 inch
560mm
43 inch
470mm
PAGE 06-10
DP-1X HORIZONTAL SIZE ADJUSTMENT
HORIZONTAL SIZE:
(Display Mode NORMAL)
• Install the correct Overlay.
• Input an NTSC Signal.
• Digital Convergence RAM
should be cleared. With
Power Off, press the Service
Only switch on the Convergence PWB. While holding
the Service Only Switch
down, press the Power On
button and Release. DCU
Grid will appear without
convergence correction.
NOTE: After entering
DCAM, with each press of
the Service Only Switch, the
picture will toggle between
Video mode and DCU Grid.
• Project only the Green
raster by selecting Green
Adjustment mode and pressing the MENU button on
remote.
gence Adjustment Mode.)
Alternate Method:
Adjust Horizontal Size until
the size matches the chart below.
ADJUSTMENT
1) Adjust using R711 (Horz.
Size Adj. VR) to match
marks on the Overlay.
(See Figure Below)
2) Press “Power Off” to exit
DCAM. (Digital ConverHORIZONTAL SIZE
Overlay
Hash
Mark
Overlay
Hash
Mark
6th Line
From
Center
6th Line
From
Center
l
Between Outside Lines
DP15
DP15F
DP15E
L=
DP14G
L=
DP17
L=
61 inch
1175mm
61 inch
1250mm
61 inch
1250mm
53 inch
1020mm
53 inch
1060mm
53 inch
1105mm
43 inch
825mm
43 inch
880mm
PAGE 06-11
DP-1X BEAM FORM ADJUSTMENT
BEAM SHAPE (FORM)
Preparation for adjustment
• IMPORTANT: Screen format
should be “NORMAL“.
• Pre Heat, Cut-Off, Pre-optical
focus, DCU Phase Data, H. Pos
Course, Raster Tilt, Beam Alignment, Raster Position, Vertical
and Horizontal Size adjustment
should be completed.
• Brightness: 90%, Contrast: Max.
• Input a NTSC DOT signal.
5) Also adjust the Red and Blue
CRT beam shapes according to
Adjustments procedure:
1) Green CRT beam shape adjustthe steps (1) to (4).
ment.
6) After the adjustment is com2) Short-circuit 2P sub-mini conpleted, return R, G and B static
nectors on Red and Blue CRT
VRs to the Best Focus point.
PWB to project only the Green
beam.
3) Turn the green static focus VR
fully clockwise.
4) Make the dot at the screen center a true circle, using the 4-Pole
magnet shown in Figure 2 below.
PICTURE TUBE SIDE
ADJUSTMENT
TABS
b
4-POLE BEAM SHAPE
CORRECTION MAGNET
ZERO FIELD SPACER
(NO ADJUSTMENT)
a
Figure 1
2-POLE BEAM
ALIGNMENT MAGNET
Figure 2
PAGE 06-12
DP-1X LENS FOCUS ADJUSTMENT
Preparation for adjustment 2) (See Figure 1) Loosen the 4) After completing optical
fixing screw on the lens
focus, tighten the fixing
• Receive the Cross-hatch
assembly so that the lens
screws for each lens.
pattern signal.
cylinder can be turned. (Be 5) When adjusting the Green
• The electrical focus adjustcareful not to loosen the
Optical focus, be very
ment should have been
screw too much, as this
careful. Green is the most
completed.
may cause movement of
dominant of the color guns
• Deflection Yoke tilt should
the lens cylinder when
and any error will be eashave been adjusted.
tightening.)
ily seen.
• Brightness = 50%
3) Rotate the cylinder back
6) Repeat Electrical Focus if
• Contrast = 60% to 70%
and forth to obtain the best
necessary.
focus point, while observing the Cross-Hatch.
Adjustment procedure
(Observe the center of the
1) Short the 2 pin subscreen).
miniature connector on the
CRT P.W.B. TS, to pro• Hint: Located just below
duce only the color being
the screen are the two
adjusted and adjust one at
wooden panels. Remove
a time. (The adjustment
the panels to allow access
order of R, G and B is just
to the focus rings on the
an example.)
Lenses.
Le
ns
C
yl
in
d
er
FIXING SCREW
LENS ASSEMBLY R, G, B.
Figure 1
PAGE 06-13
DP-1X STATIC FOCUS ADJUSTMENT
2) Adjust the Focus VR for
Red until maximum Focus
is achieved.
3) Repeat for Blue and
Green.
ADJUSTMENT
PREPARATION:
• Pre Heat Run should be
finished.
FOCUS ADJUSTMENT:
1) Short the 2pin subminiature connector on the
CRT PWB (PTS), to
remove any color not
being adjusted and adjust
one color at a time. (The
adjustment order of R, G
and B is just an example.)
Screen VR
Screen VRs
R
G
Focus VR
B
R
G
B
Focus VRs
FOCUS PACK
RED CRT
GREEN CRT
BLUE CRT
PAGE 06-14
DP-1X BLUE DE-FOCUS ADJUSTMENT
• Video
Control: Brightness 1) Receive any NTSC cross90%, Contrast Max.
hatch signal.
• SCREEN FORMAT should 2) Turn the B FOCUS VR
be PROGRESSIVE mode.
fully clockwise.
3) Adjust BLUE defocus according to the following
specifications.
1mm on each side equaling 2mm total. See figure
Below.
Blue Defocus “Sticking Out”
Center of Blue crosshatch line
Screen VR
Screen VRs
R
G
Focus VR
B
Focus VRs
R
G
B
FOCUS PACK
RED CRT
GREEN CRT
BLUE CRT
PAGE 06-15
DP-1X WHITE BALANCE and SUB BRIGHTNESS ADJUSTMENT
Adjustment Conditions:
• Cut Off and Blue Defocus
must be complete.
• High brightness white balance
• Low brightness white balance
Screen adjustment VRs on
Focus Block
Drive adjustment performed
using I2C Bus Alignment
within Service Menu.
3)
4)
5)
6)
Preparation for adjustment
adjustment 20 minutes 7)
or more after the power is
turned on.
• Turn the brightness and
black level OSD to minimum by remote control.
• Receive a tuner signal, (any 8)
channel, B/W would be
best).
• Set the drive adjustment
within I2C Service Menu to
their Data Centers (3F).
• Set Color Temperature to
COOL on Customer’s
Menu.
• Start
est white portions of the
raster can be seen.
Exit Service Menu by
pressing MENU button.
Input a gray scale signal
into any Video input and
select that input using the
SOURCE button on the
remote or front control
panel.
Turn the Brightness and
Contrast OSD all the way
up.
Enter the Service Menu
again.
Make the whites as white
as possible using the Red
DRV (Cool) and Green
DRV (Cool) Drive adjustment within I2C Service
Menu . (10800K)
Set the Brightness and
Contrast to minimum.
9) Adjust the low brightness
areas to black and white,
using screen adjustment
VRs (red, green, blue) on
the Focus Block assembly.
(10800 K)
10) Check the high brightness
whites again. If not OK,
repeat steps 6 through 9.
11) Press the MENU key on
remote to Exit Service
Menu.
Remember: When adjusting
the Screen controls. After the
Cut Off adjustment has been
completed, never adjust the
controls clockwise. Always
adjust counter clockwise.
This lengthens tube life.
Screen VR
Screen VRs
R
G
Focus VR
Focus VRs
R
Adjustment procedure
Sub Brightness:
1) Go to I2C ADJ. Mode.
With power Off, press INPUT and POWER buttons at the same time, then
release. Service Menu is
displayed.
2) Adjust the Sub Brightness
Number [2] SUBBRT using I2C Bus alignment procedure so only the slight-
B
G
B
FOCUS PACK
RED CRT
GREEN CRT
BLUE CRT
PAGE 06-16
DP-1X HORIZONTAL POSITIONS (FINE) ADJUSTMENT
90%,
• Contrast Max.
NORMAL MODE:
1) Receive any NTSC crosshair signal.
2) Screen Format is NORMAL.
ONLY switch on the convergence PWB and display
the Digital Convergence
Crosshatch pattern.
Digital Convergence
Crosshatch Pattern with
finger and press the SERVICE ONLY switch to
return to normal mode.
5) Enter the I2C Bus alignment menu and select Item
H POSI and adjust the
data so that the center of
Video matches the location of the Digital Crosshatch pattern noted in step
{4}.
data for H POSI 16X9
HD mode can now be
changed.
14) Adjust the data up or
down slightly.
16) Change Screen Format to
16X9 HD mode.
7) Receive any 1080i (2.14H) 17) Confirm that the Center
signal.
of Video matches the
Center of the DCU Cross8) Change Screen Format
hatch determined in step
16X9 HD mode.
(10).
ONLY switch on the de- 18) If the Horizontal Position
flection PWB and display
isn’t correct, repeat steps
(7) through (18) until centhe Digital Convergence
Crosshatch pattern.
ter is matched.
NOTE: To enter the I2C Bus
Digital Convergence
Crosshatch Pattern with alignment menu, with Power
finger and press the SER- Off, press the INPUT button
and hold it down, then press
VICE ONLY switch to
the POWER button and rereturn to normal mode.
lease. I2C adjustment menu
11) Power set Off and then
back On.
will appear.
12) Enter the I2C Bus alignment menu and select
Item [9] H POSI
13) Press MENU key on R/C.
(H POSI) option is
changed to HD mode. H
POSI H appears). The
16X9 HD Mode Adjustment:
NOT for the 16X9 aspect
models.
NOTE: I2C Service Menu
Can Not be entered in the
16X9 HD Mode.
NORMAL MODE:
Balance left and right side display position.
PAGE 06-17
DP-1X CHASSIS MAGIC FOCUS “CHARACTER SET UP”
NOTE: This instruction should be DATA VALUES CONFIRMAapplied when a new DCU is being TION:
replaced.
4. Use the Cursor ▼ and ▲ keys
This DCU can be set up for three
to scroll through the ADJ. PAdifferent types of wording during
RAMETER table. Confirm
Intellisense.
Data values in accordance with
1. INTELLISENSE 99
TABLE 1 to the right. To
• Phillips
make data value changes, Press
the ◄ or ► Cursor keys.
2. MAGIC FOCUS 77
5. Press the PIP MODE key 2
• Hitachi
time to write the changed data
3. HD FOCUS AA
into EEPROM. (First press,
• Zenith
ADJ PARAMETER ROM
WRITE ? Is displayed for
alarm. 2nd press writes data
1. Receive NTSC RF or Video
into EEPROM. Green dots apSignal.
pear after completion of opera2. With Power Off, Press and
tion).
HOLD the SERVICE ONLY
6. Press the MUTE button 3
button on the Convergence/
times exit.
Focus PWB, then press the
Power On/Off and release.
16 X 9 HD MODE ADJ:
When picture appears, release
6. Input a 1080i signal.
Service Only switch. (DCU
7. Press the EXIT key on remote
grid is displayed without con5 time to exit to the video
vergence correction data.
mode.
8. Change input to receive 1080i
input.
1. Press the FREEZE key on R/
C. (One additional line appears 9. Enter Customer’s Menu and
select FORMAT. Change to
near the top and bottom.
Through Mode.
2. Press the PIP CH key, the
10. Exit Menu.
ADJ. PARAMETER mode is
11. Press the Service Only Switch
displayed as following.
to return to DCAM.
12. Repeat Steps 2 ~ 8.
ADJ.PARAMETER
13. Power set off.
—–> ADJ. DISP. : 77
SEL. STAT. : 00
DEMO.WAIT : 2f
3.
Press the ◄ or ► Cursor to
change the ADJ. DISP. Data as
follows;
•
77 for HITACHI
TABLE 1
Parameter
Not for
16X9 aspect
models.
Normal Squeeze
ADJ.DISP
77
•
SEL. STAT
00
•
DEMO WAIT
2f
•
INT STEP 1
02
•
INT A DLY
0a
•
INT C DLY
0a
INT BAR
1c
•
MGF STEP 1
00
•
MGF A DLY
0a
•
MGF C DLY
0a
MGF BAR
0e
•
SENSOR CK
00
•
SENSOR 0
ff
•
SENSOR 1
00
•
SENSOR 2
ff
•
SENSOR 3
01
•
SENSOR 4
ff
•
SENSOR 5
06
•
SENSOR 6
ff
•
SENSOR 7
07
•
AD LEVEL
03
•
E. DISPLAY
00
•
ADJ. TIMS
60
•
AD LEVEL
05
•
AD NOISE
80
•
PHASE MOT
60
•
H. BLK-RV
06
H. BLK-GV
01
H. BLK-BV
06
H. BLK-H
00
•
PON DELAY
0c
•
IR-CODE
00
•
INITIAL 50
9e
•
MGF 50
96
•
9 POINT 50
fe
•
STAT 50
fe
•
DYNA 50
9f
•
5a
5a
03
•
03
PAGE 06-18
DP-1X CHASSIS MAGIC FOCUS “PATTERN SET UP”
NOTE: This instruction should
be applied when a new DCU is
being replaced.
NOTE: This instruction shows
how to set up the pattern position 6.
for Intellisense. Each model has
a specific set up pattern position. 7.
change the Pattern Position
Data in horizontal Direction.
Press the ▲ or ▼ Cursor keys
to change the Pattern Position
Data in Vertical Direction.
Set the Data Values as shown
below.
Press the PIP MODE key 2
times to write the changed data
into EEPROM. (First press,
ADJ PARAMETER ? ROM
WRITE ? Is displayed for
alarm. 2nd press writes data
into EEPROM. Green dots appear after completion of operation).
Press the MUTE button 3
times exit Pattern Mode.
•
Receive NTSC RF or Video
Signal.
•
With Power Off, Press and
HOLD the SERVICE ONLY
button on the Convergence/
Focus PWB, then press the
Power On/Off at the same
8.
time, until picture appears, then
release both. (Picture is displayed without conv. CorrecNORMAL MODE:
tion data. Press the Service
0
1
Only button to bring up Internal Crosshatch.)
RH
X
02
1. Press the FREEZE key on R/
C. (One additional line appears
near the top and bottom.
2. Press the HELP key, the PATTERN mode is displayed as
following.
0
7
6
3.
4.
5.
1
RH : 02
RV : FF
5
2
3
4
Use the 6 Key to rotate Arrow.
Arrow rotates clockwise with
each press on the 6 Key.
Use the following Keys to
switch color of patterns.
•
STATUS : GREEN
•
0 : RED
•
ANT : BLUE
Press the ◄ or ► Cursor to
16X9 HD MODE
9. CHANGE DISPLAY TO
16X9 HD MODE.
10. Press the EXIT key on R/C 5
times to exit to video mode.
11. Change input to receive 1080i
signal.
12. Change format to 16X9 HD.
Top and bottom panels should
now be black.
13. Exit Menu.
14. Repeat Steps 2 through 8
15. Power set off.
2
3
4
5
6
7
X
fa
X
02
X
04
RV
X
00
X
00
X
02
X
00
GH
X
00
X
fa
X
00
X
04
GV
X
00
X
00
X
02
X
00
BH
X
00
X
fa
X
00
X
04
BV
X
00
X
00
X
02
X
00
16X9 HD MODE: V. SQUEEZE ACTIVATED Not in 16X9 aspect models.
0
1
2
3
4
5
6
7
RH
X
02
X
fa
X
02
X
06
RV
X
00
X
00
X
02
X
00
GH
X
00
X
fa
X
00
X
06
GV
X
00
X
00
X
02
X
00
BH
X
00
X
fa
X
00
X
06
BV
X
00
X
00
X
02
X
00
PAGE 06-19
DP-1X DIGITAL CONVERGENCE ALIGNMENT PROCEDURES
Complete Digital Convergence Alignment
Center the Overlay Jig geometrically on the screen
Receive any NTSC signal (Crosshair if possible)
Set SCREEN FORMAT TO NORMAL mode
Clear RAM data (DCU RAM)
Service only
switch
is on the
Convergence
PWB.
Internal
Digital "Cross
Hatch Signal"
is projected
Press and hold the SERVICE ONLY
SWITCH, then press the POWER
Button and release, picture appears.
Release the SERVICE ONLY SWITCH
again. DCU Grid appars.
No DCU Correction added
results in severe
pincushion distortion
Center Magnet Adjustments
Select the External Center Cross Signal by pressing
the EXIT button 5 times, then the Remote SOURCE
button .
Use the Centering
Magnets closest to
the Yoke
Front View
R
B
G
Align the G,R,B individual
center crosses to their
respective marks on the
Overlay using the Yoke
Center Magnets
Red = Left
External Selected Center
Cross with no DCU center
data
R G B
Blue = Right
Green = Center
A
See Offset Chart for exact distances Page 06-09
PAGE 06-20
A
Static Centering Alignments (Moves Entire Raster)
Press EXIT 5 times to return to DCU Grid.
Internal Cross
Hatch Signal
selected
Press the Remote FREEZE
button (extra lines will appear
at top and bottom)
Extra Lines
appear
indicating
Raster
Mode
Remote
Adjust Color Up
Press the Remote Cursor
buttons to match the selected
Crosshatch
(red and blue) to the green.
Adjust
Color
Left
OK
Adjust
Color
Right
Adjust Color Down
Align Red and Blue static centers
TO SELECT COLORS
Status : Selects GREEN
0 : Selects RED
ANT : Selects BLUE
Green should already be centered
Press the Remote
FREEZE button
to exit Raster Position.
(extra lines will disappear)
B
PAGE 06-21
B
Convergence 3x3 Point Adjustment Mode
(Green Coarse Alignment)
Press the Remote STATUS
button to enter the Green
Adjustment Mode
Press the Remote STATUS
button 5 times to enter the
3X3 Adjustment Mode
STATUS
Button is used
for selecting the
3X3 Adjustment
Mode (when
pressed 5
times).
(The 3X3 Mode
can only be
entered when
the DCU RAM
data is cleared)
Green Only
Press the Remote
MENU button to
project the green
tube only
St
at
us
Remote
Cursor blinks
at intervals of
3 to indicate
the 3X3
Adjustment
Mode
Use the Remote 2, 4, 5, 6 number
buttons to move the Adjustment Point
location (intersection of blinking
cursor) and the Cursor Buttons to
adjust the lines so that the green cross
hatch align
with the Overlay (Jig)
Selects GREEN
3X3 Mode =
9 Adjustment Points
Remote
OK
Before Adjustment
Adjusted by cursor keys
After Adjustment
Remote
2
4
5
6
Moves location of
Adjustment Point
(Intersection of
blinking cursor)
Lines symmetrically
aligned at Adjustment
Points
C
Continue on next page
PAGE 06-22
C
Before Calculation
Press the Remote INFO button to
Calculate points in between the
adjustment points.
Calculation averages the error between the
points to prevent "S" Distortion
Convergence 3x3 Mode (9 Point) Adjustment
(Red / Blue Coarse Alignment)
Green always
projected
After interpolation, press the Remote0 button to select
the Red Convergence Adjustment Mode
Remote
Cursor blinks
RED
4
7
5
8
0
6
9
0 Selects RED
Crosshatch is
yellow when the red
and green
crosshatches align
Press the Remote 2,4,5,6 buttons to move the
adjustment point, and the Cursor buttons to
converge the selected color onto green
Cursor Blinks Blue
Store the data to
interpolate as often as
necessary
Remote
Has the Blue
3x3 Convergence
Mode been
aligned?
Crosshatch is cyan when the blue and
green crosshatches align
White internal crosshatch
should be projected
Selects
Blue
No
Press the Remote
ANT button to Select
the Blue Convergence
Adjustment Mode
Yes
Press Menu
Button
ANT
D
PAGE 06-23
D
Convergence 7x5 Point Adjustment
(Green Only Alignment)
Remote
4
7
5
8
Press the Remote 0 button five
times to enter the 7X5 mode
6
9
0
Selects the 7X5
mode
If selected Color isn't already Red, it
will take 6 presses of 0 button
St
at
us
Remote
Press the Remote STATUS button
to project the green only
Selects GREEN
Use the Remote Cursor and 2,4,5,6 buttons to perform convergence
point adjustment at every other intersection of the crosshatch
35 convergence adjustment
points in 7X5 mode
Remote
Adjust Color Up
Adjust
Color
Left
OK
Adjust
Color
Right
Adjust Color Down
adjustment points.
E
PAGE 06-24
E
Remote
Convergence 7x5 Point Adjustment
(Red/Blue Alignment)
4
7
5
8
0
6
9
Press the Remote 0 button to project
the Red/Green Crosshatch
Perform
adjustment at
every other
intersection
Press the Remote Cursor and 2,4,5,6
buttons to perform convergence point
adjustment at every other intersection
of the crosshatch
Cursor blinks red
at intervals of 2 to
indicate the 7x5
mode
Cursor Blinks
Blue
Press the
Remote INFO
button to
Calculate points
in between the
adjustment
points.
Press the Remote ANT button
to select the Blue Convergence
Adjustment Mode
Has the Blue
7X5 Convergence Mode
been aligned?
White Internal
Crosshatch
should be
projected
OK
No
Remote
Selects
Blue
ANT
Yes
Press Menu Button
Selects Blue for
adjustment
F
PAGE 06-25
F
Convergence 13X9 Point Adjustment
(Green Only Alignment)
Press the Remote ANT
button five times to
enter the 13X9 mode
Remote
If selected Color isn't already Blue, it will
take 6 presses of Source button
Pressed 5 times,
Selects the
13X9 mode
ANT
Remote
St
at
us
Remote
Press the Remote A/CH button
to project
the green only
OK
Selects GREEN
2
4
5
6
Use the Remote Cursor and 2,4,5,6
buttons to perform convergence point
adjustment at every other intersection
of the crosshatch
117 convergence
adjustment points in
13X9 mode
Remote
Adjust Color Up
Adjust
Color
Left
OK
Adjust
Color
Right
Adjust Color Down
adjustment points.
G
PAGE 06-26
G
Convergence 13X9 (117 Point)
Adjustment (Red/Blue Alignment)
Remote
4
7
5
8
0
6
9
Press the Remote " 0 " button to enter RED Adjustment Mode
and to project the Red/Green Crosshatch
Perform
adjustment at
every
intersection
Press the Remote Cursor and
2,4,5,6 buttons to perform
convergence point adjustment at
every intersection of the
crosshatch
Press the
Remote INFO
button to
Calculate points
in between the
adjustment
points.
Cursor blinks red
indicating the
13X9 mode
Press the Remote ANT button
to select the Blue Convergence
Adjustment Mode
Remote
Adjust Color Up
Adjust
Color
Left
OK
Adjust Color Down
White Internal
Crosshatch
should be
projected
Cursor Blinks Blue
Adjust
Color
Right
Remote
Has the Blue
13X9 Convergence
Mode been
aligned?
ANT
No
Selects Blue for
adjustment
Yes
Press the Menu Button to
Display all colors
H
PAGE 06-27
H
Store New Convergence Data in ROM
Press the Remote PIP MODE
button twice to save the data to
ROM mode = STORE
ROM WRITE?
1
2
This screen is projected at the first
press of PIP MODE button
3
Screen goes blank for several
seconds at the second push of
the PIP MODE button
!!!! WARNING !!!!
Sensor Initialization must be done
after a Write to ROM, (STORE) in
order for MAGIC FOCUS to operate.
If this is not done, when HD FOCUS
is run, a single Cross Hire will be
displayed.
Return to the Digital Conv.
Adjustment Mode and Initialize the
Sensors.
This screen appears with a series of
green dots indicating a successful
Write to ROM or Store.
Note: If Red dots appear, retry the
process. If Red dots appear the
second time, replace the Digital
Convergence module.
Press the Remote MUTE button to
return to the Digital Convergence
Adjustment mode
I
PAGE 06-28
I
Magic Focus Sensor Initialization
Press the Remote PIP MODE button once
SHORTCUT TO
CHANGE TO 16 X 9
HD MODE:
1) While in DCAM,
press the EXIT key
on R/C 5 times to
exit to video mode.
2) Change input to receive 1080i signal.
3) Change format to
16 X 9 Through
Mode using Customer’s Menu. Top
and Bottom panels
should now be
black.
4) Exit Customer’s
Menu.
ONLY SWITCH on
the Convergence
PWB to re-enter
DCAM. DCAM
grid should now
appear.
6) Return to step D
and continue in
16 X 9 Through
Mode.
1
ROM WRITE?
SWAP
PIP CH
-
SOURCE
FREEZE
+
Again the screen projects
ROM WRITE at the first
press of PIP MODE button
Press the Remote PIP CH button to
begin the Initialization Mode
This screen appears with a series of
green dots indicating successful
sensor Data Initialization
2
INTELLISENSE
3
Screen projects different
light patterns during the
Initialization Mode
Press the MUTE Button to return to Crosshatch.
Finished with Digital Convergence Setup for NORMAL mode.
Press the Service Only Switch to Exit to Normal Mode
NOT FOR 16 X 9 ASPECT MODELS
SELECT 1080I (16 X 9 HD) Mode, Change screen format to 16X9 HD Mode.
Install the 16 X 9 HD Overlay. Press the Service Only Switch to enter the
DCAM. Return to step (D) and aligh to the Overlay.
CONVERGENCE ADJUSTMENT OPERATION COMPLETE
PAGE 06-29
Convergence Touchup
Overlays NOT required!
Convergence Point Adjustment
Be sure to input the correct signal for the paticular display that
need convergence touch up. NTSC (Normal) or 1080i (16 X 9 HD).
Enter the Service Mode by pressing the
Service Only Switch on Convergence PWB.
Press "0" five times to select the 7X5 Mode
Press "ANT" five times to select the 13X9 Mode
Note: 3X3 mode can not be entered without clearing RAM data.
Cleared RAM data mode can be entered if necessary.
Clear RAM data by pressing and holding the Service Only
button, then press the Power button. Press the Service Only
switch again to display the DCU Grid, then Read the Old ROM
data. (SWAP press twice)
Press the MENU button to Remove
colors not being adjusted.
Press 2, 4, 5, 6 buttons to move Adjustment Point
Press Cursor Up / Down / Left / Right to Adjust Convergence
When adjustment is complete, STORE the New
DATA by pressing the PIP MODE button twice.
Press the MUTE button to return to DCAM grid.
After Storing, initialize the INTELLISENS sensors by pressing the
PIP MODE button ONCE and then press the PIP CH button.
Press the MUTE button to return to DCAM grid.
See "Complete Digital Convergence
Alignment procedure" for more details.
Press the Service Only Switch
to Exit DCAM mode.
PAGE 06-30
USED IN MODELS:
61SWX10B, 61SWX12B
53SWX10B, 53SWX12B
43UWX10B, 53UWX10B
61UDX10B, 53UDX10B
43FDX11B, 43FDX10B
POWER
VCR
TV
CBL
SAT
SOURCE WIZARD
AV1
DVD
AV2
AV3
CURSOR DOWN
1
2
3
4
5
6
CURSOR RIGHT
7
8
9
RED (7 X 5)
CURSOR UP
CURSOR LEFT
0
SLEEP
LAST CH
RASTER PHASE
BLUE (13X9)
HELP
C.C.
ANT
MUT
E
SV
CS
VC
R
VID
+
WRITE TO
ROM
PRESS
(2X)
STA
INFO
TUS
GU
IDE
/TV
VID
PROG
CENTERING
FREEZE
PIP ACCESS
SWAP
TV/VCR
5
4
VID3
PIP CH
GREEN (3 X 3)
HD
SC
VID
2
PIP-MODE
CORRECTION
BUTTONS
CH
VID
PIP
INITIALIZE
PIP MODE +
PIP CH
PL
US
1
CALCULATE
CROSSHATCH
VIDEO
SELECT
VOL
PIX
EXIT
U
MEN
REMOVE
COLOR
ASPECT
READ OLD
ROM DATA
PRESS (2X)
SLOW
REC
HITACHI
CLU-5711TSI
PAGE 06-31
USED IN MODELS:
53SBX10B
POWER
VCR
TV
CBL
SAT
SOURCE WIZARD
CURSOR UP
AV1
DVD
AV2
AV3
CURSOR DOWN
CURSOR LEFT
1
2
3
4
5
6
CURSOR RIGHT
7
8
9
RED (7 X 5)
0
SLEEP
LAST CH
RASTER PHASE
BLUE (13X9)
HELP
INPUT
CROSSHATCH
VIDEO
EXIT
U
MEN
REMOVE
COLOR
PIX
SELECT
VOL
MUT
E
SV
CS
VC
R
PL
US
+
CH
STA
INFO
TUS
GU
IDE
HD
SC
CENTERING
PIP
WRITE TO
ROM
PRESS
(2X)
GREEN (3 X 3)
/TV
CALCULATE
INITIALIZE
PIP MODE +
PIP CH
CORRECTION
BUTTONS
PIP-MODE
PROG
PIP CH
FREEZE
PIP ACCESS
SWAP
TV/VCR
READ OLD
ROM DATA
PRESS (2X)
SLOW
REC
HITACHI
CLU-5712TSI
PAGE 06-32
REMOTE CONTROL CLU-4311UG (P/N HL01651)
Used with
60DX10B, 50DX10B
43GX10B, 50GX30B
HP-1X Chassis
READ OLD
ROM DATA
PRESS (2X)
POWER
TV
CBL/SAT
SWAP
DVD/VCR
MOVE
PIP
WRITE TO
ROM
PRESS (2X)
FREEZE
HELP
CENTERING
PIP CH
MENU
RASTER PHASE
REMOVE
COLOR
INITIALIZE
PIP MODE +
PIP CH
SELECT
CORRECTION
BUTTONS
MUTE
LAST CH
EXIT
CROSSHATCH
VIDEO
VOL
CH
CURSOR UP
CURSOR LEFT
BLUE (13X9)
1
2
3
CURSOR DOWN
4
5
6
CURSOR RIGHT
7
8
9
0
STATUS
INPUT
REC
TV/VCR
RED (7 X 5)
GREEN (3 X 3)
PIX
HITACHI
CLU-4311UG
PAGE 06-33
DP-1X MAGNET AND YOKE LOCATION
DP-1X MAGNETS
Adjustment Points
1
FRONT
RED CRT
2
GREEN CRT
3
BLUE CRT
4
4
6
4
5
5
(1)
(2)
(3)
(4)
Centering magnet RED
Centering magnet GREEN
Centering magnet BLUE
Beam Form Magnets
5
(5) Beam Alignment magnets
(6) Focus Block Assembly
RED, GREEN & BLUE FOCUS CONTRO
Also: SCREEN CONTROLS for
RED, GREEN & BLUE
PAGE 06-34
DP-1X SUB PICTURE AMPLITUDE ADJUSTMENT
Preparation for Adjustment Adjustment Procedure
• Sub
Brightness adjustment
should be finished.
• Start adjustment 20 minutes
after the power is turned on.
• Condition should be set as
follows:
• Contrast = MAX
• Brightness = Center
• Press “PIP” button on Remote Control. PIP appears
on screen
• Select Single mode. Receive
NTSC white signal, for the
Main Picture and the SubPicture. (Do not use Component Signals).
• Connect Probe on the P852
(CRT PWB — Green) to
check sub-picture amplitude.
1) Go to I2C adjustment
Mode.
2) Press “MENU” on remote
to scroll through adjustment pages, until TA1270M appears at the top of the
page.
3) Press “PIP CH” on remote control, TA1270-M
changes to TA1270-S.
4) Observe P852 on the CRT
PWB and change the
TA1270-S “SUB CNT”
I2C data so that the amplitude of the Sub Picture is
the same level as that of
the main picture. Shown
below.
5) Exit Service Menu.
Enter I2C adjustment Menu.
Press Menu and scroll through
pages until TA1270-M appears.
ADJUST MODE
TA1270-M
TINT (TV)
TOFFO (TV)
TOFQ
SUB CNT
SUB CLR
3C
00
00
0F
Sub
Picture
Press PIP CH
ADJUST MODE
TA1270-S
TINT (TV)
TOFFO (TV)
TOFQ
SUB CNT
SUB CLR
3C
00
00
0F
Sub
Picture
1H
Main Picture White
Sub Picture White Should Match Main
Adjust SUB CNT until peak white of PinP matches peak
white of the main picture.
PAGE 06-35
MAGIC FOCUS ERROR CODES FOR THE DP-1X CHASSIS
CONVERGENCE ERRORS:
If an error message or code appears while performing MAGIC FOCUS or initialize (PIP MODE and PIP CH in
Digital Convergence Adjustment Mode, follow this confirmation and repair method.
1) Turn on Power and receive any signal.
2) Press the Service Only Switch on the Convergence Output PWB.
3) Press SWAP and then the PIP CH buttons on the remote control.
4) Error code will be displayed in bottom right corner of screen.
5) If there is no error, and INITIAL OK will appear on screen.
ERROR!!
Error Code
X
Error Message
CONNECT 1!
No. 1
3
Sensor Position
6) Follow repair table for errors.
ERROR!!.
Error
Code
Application
Error
Display
Code
Countermeasure
Initialize
Magic
Focus
1
VF Error
Replace DCU
X
X
2
*2
Connect 1
1.
2.
3.
4.
5.
6.
7.
8.
9.
X
—
Darken Outside Light
Placing of Sensor
Is pattern hitting sensor?
Check connection and solder bridge of sensor
Replace Sensor.
Replace Sensor PWB.
Sensor Connector check.
Replace DCU.
Adjustment check (H/V size, centering).
3*2
A/D Level
Same as Error Code 2
X
X
4
Over Flow
1.
2.
3.
X
X
Check the placement
Adjustment check (H/V size, centering).
Conv. Amp. Gain check*1 (check resistor values
only)
5
Convergence
X
X
7
Operation
—
X
9
Connect 2
X
X
10
Noise
Input strong field. Strong signal. Check the wiring of
connector between sensor and DCU
X
X
11
Sync
Input strong field. Strong signal. Check the wiring of
connector between sensor and DCU
X
X
*1 = RK 42, 46, 50, 54, 58, 62 check these resistors. *2 = Sensor Position
PAGE 06-36
AUDIO
INFORMATION
DP-1X CHASSIS
SECTION 7
PAGE 07-01
V5
V4
V3
V2
V1
27
MON
Aux 5 Right
Aux 5 Left
Aux 4 Right
Aux 4 Left
7
8
PFT
16
15
PST1
TERMINAL PWB
Monitor Out Right
Monitor Out Left
TV Main R
Front Control PWB
Aux 3 Right
Aux 3 Left
Aux 2 Right
Aux 2 Left
Aux 1 Right
Aux 1 Left
Main Tuner 26
U501
TV Main L
SIGNAL PWB
43
45
Right Out
SEL
OUT
Left Out
MON
40 OUT
38
61
59
4
2
17
25
23
11
9
18
16
64
62
IX01
A/V Select
See AV Mute
Circuit
Diagram
See AV Mute
Circuit
Diagram
11
10
PST1
SIGNAL PWB
SEL R
SEL L
QJ02
QJ01
+
IJ01
12
7
SIGNAL PWB
Front Audio Out
TA8200AH
2
4
+
10 FR
11 FL
7
8
PSU1
FL (TW) Out
FL (WO) Out
FR (TW) Out
FR (WO) Out
HiFi Out
HiFi Out
SRS PWB
(See SRS Audio Circuit
Diagram)
DP-1X Chassis Audio (Main-Terminal) Signal Path
4
2
PL
4
2
PR
L
R
JA01
PAGE 07-02
30 R In
1 L In
7
8
11
10
5
Select R
Select L
FL
FR
V Mute 2
ERRMute 6
Mute
VMute
Front Right
Front Left
14 SCL
13 SDA
SCL2
1
SDA2 2
PSU1
L Out
R Out
8
23
27
BBEout L 4
Tone R In 26
Tone L In 5
BBEout R
IA01
18
Audio Control 17
MODE 2
MODE 1
2
3
5
6
-
+
IA07
-
+
1
7
DA02
DA01
QA05
DA04
QA06
QA03 QA04
DA03
JA01
H
SRS MONAURAL
QA01 QA02
H
SRS STEREO
Out to HiFi L
Out to HiFi R
H
L
L/H
MODE 1 MODE 2
SRS LOGIC
L
MODE
LOut
ROut
LIn
RIn
IA02
SRS
BYPASS (SRS OFF)
12
13
23
24
15
16
DP-14G, 15, 15F, PP15, ZP14 Series Chassis TruSurround / SRS AUDIO Circuit
(This Circuit is not for the DP-17) (Also, see Audio Main and Terminal PWB Circuit)
PAGE 07-03
U501
Aux 3 Right
Aux 3 Left
Aux 2 Right
Aux 2 Left
Aux 1 Right
V5
V4
Monitor Out Right
Monitor Out Left
7
8
PFT
16
15
PST1
TERMINAL PWB
MON
Aux 5 Right
Aux 5 Left
Aux 4 Right
Aux 4 Left
Front Control PWB
V3
V2
V1
TV Main R
Aux 1 Left
Main Tuner 26
27
TV Main L
SIGNAL PWB
7
PerVol On/Off
QJ02
QJ01
QJ06
QJ05
Center
IJ03
Perfect
10
Vol
1
See AV Mute
Circuit
Diagram
11
45
Right Out
SEL
OUT
10
43
PST1
Left Out
MON
40 OUT
38
61
59
4
2
17
25
23
11
9
18
16
64
62
IX01
A/V Select
8
3
SIGNAL PWB 1 of 4
SEL R
SEL L
+
-
+
IJ02
12
7
+
IJ01
12
7
Front Audio Out
TA8200AH
2
4
+
Center Audio Out
TA8200AH
2
4
20
PSU2
10 FR
11 FL
7
8
HiFi Out
HiFi Out
FL (TW) Out
FR (TW) Out
FL (WO) Out
FR (WO) Out
Center L Out
Center R Out
Coaxial Input
Optical Input
1
Rear L
4
2
PL
4
2
PR
2
PCL
2
PCR
4
3
JS01
4
JS02
JS03
Rear R
Sub Woofer Out
SURROUND PWB
(See DP17 Surround Audio
Circuit Diagram)
PSU1
DP-17 Chassis Audio (Main-Terminal) Signal Path
Sel R
Sel L
FL
JS01
3
FL
See Audio Signal Path (Main & Terminal)
86
Invert 2
IT02
Optical Input Good, no Invert
Invert 1
Digital Output to DSP
5
IS16 SPFRX
12
2X
Invert
3
8
IS17
11
Surround
QW01
Sub PWB
4 PW09 3
4
Coaxial Input Optical Input
8
7
11
10
FR
Out to Hi-Fi
32
30
28
27
Rear Spk
Jack
1
4
JS02
26
25
SL
SR
23
C
SW 24
IT07
FR
FL
QS11
2
3
QS03,2
SW Sel 2
QS01
IS04
7
IS15
Mute 11
Rear
Audio
7
4
Output
IC
12
2
Rear L
Rear R
Center
Sub Woofer
1
6
5
+
-
PSU1
DS10
DS26
DS09
QS08
26
25
11
6
16
FL
17
7
V Mute 2
33
3
2
6
5
SR 35
SL 34
C
IS09
SR
SL
C
Rear Spk Off
DS08
SL
31
32
SW SW 36
Front
Audio
Control
IS06
Out to Hi-Fi
1
FR
SR
FR
QS04
DS07
D
Error Mute
QS07
QS09
5
7
3
2
QS05,6
SW Sel 1
S
1
3 +
2 -
G
7
IS03
6 5 +
QS13
IS05
6
1
+
-
4
7
1
1
7
20
Center
3 +
2 -
+
IS12
5 +
-
7
+
IS11
PSU2
C
1
2
1
6
5
C
7
6
3
QS19
Sub
Woofer
QS17
Out
FR
FL
QS20, 21 C.D. Bass
See Audio
(Main &
Terminal)
6 5 +
IS08
3 +
2 -
IS07
6 5 +
3 +
2 -
IS10
Front 20
FL
39 Graphic 23
EQ
FR
DP-17 CHASSIS SURROUND AUDIO SIGNAL PATH
+
+
+
+
-
PAGE 07-04
MISCELLANEOUS
INFORMATION
DP-1X CHASSIS
SECTION 8
PAGE 08-01
R
L
AUDIO TO HI-FI
ANT B
To
Converter
ANT A
R
AUDIO
INPUT 2
R
AUDIO
INPUT 1
L
(MONO)
(MONO)
L
VIDEO
S-VIDEO
VIDEO
S-VIDEO
R
AUDIO
INPUT 4
PRCR
L
R
AUDIO
(MONO)
INPUT 5
PRCR
PBCB
L
PBCB
(MONO)
Y
Y
L
R
AUDIO
MONITOR
OUT
(MONO)
VIDEO
S-VIDEO
REAR PANEL for the (DP-1X except DP-17) MODELS
PAGE 08-02
R
AUDIO
TO HI-FI
L
-
+
-
+
SUB
WOOFER
L
L
REAR SPEAKER
8 ONLY
OPTICAL COAXIAL
INPUT
INPUT
ANT B
To
Converter
ANT A
INPUT 2
L
INPUT 1
(MONO)
R
AUDIO
L
VIDEO
S-VIDEO
R
AUDIO
(MONO)
VIDEO
S-VIDEO
L
R
AUDIO
(MONO)
INPUT 4
PRCR
PBCB
Y
CONNECT ONLY 8 Ohm SPEAKERS
DO NOT SHORT CIRCUIT
SPEAKER TERMINALS
(such damage is NOT COVERED
by your television warranty)
STOP
L
R
AUDIO
(MONO)
INPUT 5
PRCR
PBCB
Y
REAR PANEL for the (DP-17) MODELS
L
R
AUDIO
MONITOR
OUT
(MONO)
VIDEO
S-VIDEO
PAGE 08-03
PDK1
7
6
2
1
PSD1
T701
6
7
2
1
I601
D708
HORIZONTAL
SIZE
R711
R607
VERTICAL
SIZE
PMB
PMG
PMR
1
2
PSD2
PDK3
11 1
10 2
PDK4
10
11
T702
Q777
3
1
1
PDC2
6
1
PDC1
DP23
SW-28V
(Green)
DP35
SW+28V
(Green)
PDF1
DP37
SW+5V
(Green)
IP04
DP11
SW+9V
PSD3
(Green)
2
10
1
11
Q701
7
6
FH01
PROTECTOR
DP-1X
DEFLECTION
PWB
1
2
IP05
5
FP08
PROTECTOR
FP02
PROTECTOR
FP07
PROTECTOR
FP03
PROTECTOR
FP04
PROTECTOR
FP05
PROTECTOR
FP09
PROTECTOR
QH01
= GREEN or RED LED
IP01
DP01
SWITCHING
TRANSFORMER
TP91
TH01
FBT
1
2
FP01 FUSE
IP01
IC POWER
MONITOR
(RED)
DO NOT
ADJUST
HIGH
VOLTAGE
ADJUST
PDKP
11
10
F902
FUSE
C905
I902
Q901
Q902
I903
D901
R902
Q917 Q919
Q918
1
PQS2
L902
Q914
3
L901
4
1
2
PQD1
9
1
1
= GREEN or RED LED
PA
2
1
6 Amp F901
125V FUSE
L905
6
1
AUDIO
SRS +29V
(SRS)
R931
I904
Q916 Q915
S901
2 Amp
125V
I901
Q920
R971
I906
PQD2
Switching
Transformer
T901
S902
D912
PAQ1
D910
C915
DP-1X SUB POWER PWB
PQS1
PAGE 08-04
1
PSU1
20
1
PSU2
U501 MAIN TUNER
EAN
1
20
1
20 1
1
X301
PST3
40
I501
X552
IC04
UC01
20
FLEX CONVERTER / PinP
TERMINAL PWB
100
1
Q025
I301
PST2
3D Y/C
SHIELD COVER
IC03
PST1
9
IC02
PQS1
1
I001
MAIN MICRO
Q016
I001
4
4P
1
PQS2
1
PCL
6P
XC01
QC30 QC35QC40
11
4
6
PFSH
I002
QC26
8
PZC
1
1
PR
1
7P
2P
PZV
X001
4
PSD2
20
IJ01
1
1
PJIG
7
PRST
PFS
1
7
1
PL
5
1
1
IC01
9
DP-1X SIGNAL PWB DOUBLE SIDED
PSD1
PSD3
11
I303
U502 PinP TUNER
SURROUND PWB
PAGE 08-05
DP-0X CHASSIS CRT PWB
PGV
P851
GND
PTSG
SHORT TO
KILL THE
COLOR
P852
Cathode
E831
GREEN
P801
W801
PRV
GND
PTSR
SHORT TO
KILL THE
COLOR
PTSB
SHORT TO
KILL THE
COLOR
P802
Cathode
E861
RED
P841
W801
PVB
GND
E801
P8A2
CATHODE
BLUE
PAGE 08-06
PAGE 08-07
2
1
QK01
IK01
PDK1
SERVICE
ONLY
SWITCH
6
7
QK08
QK07
QK06
QK02
QK03
1
2
1
PSD1
PDK3
11
10 2
11 1
PDK4
IK02
DIGITAL CONVERGENCE UNIT
UKDG
6
7
4
PCR
QF06
QF05
QF04
18
1
QF06
IK04
DP1X CONVERGENCE PWB
4
1
QF07
PCG
3
1
PDF1
1
18
QF08
2
1
1
10
11
PDF2
PDKP
1
4
4
PCB
IK05
1
1
LX03
20
PFT 11
PST1
1
1
JX01
LX01
LX02
PST2
QX01
QX02
QX03
20
XX02
1
XX01
1
IX03
48
JX02
PST3
LX04
LX09
LX10
20
LX08
IX08
16
IX07
1
IX09
16 IX06
1
16
IX02
48
IX05 1
1
LX07
XX05
LX06
XX03
IX04
48
DP-1X TERMINAL PWB
DOUBLE SIDED
PAGE 08-08
PSU2
JA01
1
IA07
1
1
8
PSU1
IA01
30
20
1
IA02
1
24
20
DP-1X SRS (Surround) PWB
DOUBLE SIDED
PAGE 08-09
DIGITAL CONVERGENCE UNIT
UKDG
1
11
18
18
PCR
PCB
4
4
4
1
4
3
QK08
QK07
QK06
QF06 QF06
QF04
PDK4
PDK3
PDK1
7
1
1
111
7
1
1
111
7
PDK4
1
7
PDK1
PDK3
PMR
DP-1X
PMG
DEFLECTION
QF07
PDF2
QF08
1
PDF1
1
PDKP
QF05
= GREEN or
RED LED
1
11
1
11
PDKP
PDF1
PMB
3
PWB
FBT
QH01
VERTICALT701
SIZE
R607
TH01
FH01
PROTECTOR
R711
HORIZONTAL
SIZE
Q701
HIGH
VOLTAGE
ADJUST
DO NOT
ADJUST
DP23
SW-28V
(Green)
DP35
SW+28V
(Green)
Q777
T702
FP09
PROTECTOR
FP05
PROTECTOR FP08
PROTECTOR
DP01
PDC1
PDC2
7
1
1
DP37
SW+5V
(Green)
DP11
SW+9V
(Green) PSD3
11
1
7
1
11
I601
1
IP05
IP04
11
FP04
PROTECTOR
FP03
TP91
PROTECTOR
FP02
PROTECTOR
SWITCHING
FP07
TRANSFORMER FP01 FUSE
PROTECTOR
PSD3
1
1
X301
20
1
PST2
1
9
IC02
PQS1
1
PST1
IC03
20
1
3D Y/C
SHIELD COVER
I001
MAIN MICRO
Q016
4P
1
PCL
4
6P
6
1
PFSH
7P
PJIG
1
7
2P
PRST
100
I301
Q025
I002
X001
1
PFS
PST3
40
QC3
0
I501
I303
QC2
6
1
4
EAN
PQS2
IJ01
PSU1
SURROUND PWB
1
20
PSU2
U501 MAIN TUNER
1
4
PR
1
1
PL
5
U502 PinP TUNER
20
PZV
1
I001
9
20
FLEX CONVERTER / PinP
X552
IC04
UC01
XC01
8
PZC
6
11
PSD2
QC3 QC4
5
0
PSD
1
PSD2
IC01
PSD
1
IP01
5
1
IP01
IC POWER
MONITOR
(RED)
TERMINAL PWB
D708
1
1
1
QK02
QK01
1
1
IK05
PCG
IK02
QK03
DP1X CHASSIS COMPLETE
1
IK04
PSD1
IK01
PAGE 08-10
DC VOLTAGES
Signal (1/5)
Circuit
No.
Circuit
No.
Pin
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
I001 18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
Voltage
DC
0.0
4.8
4.8
3.8
3.5
1.6
3.5
3.3
2.9
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
3.5
0.0
0.0
1.8
2.9
3.4
2.2
2.5
0.6
0.0
0.6
2.5
1.5
3.5
2.0
1.7
1.8
0.0
0.0
0.0
0.0
1.6
1.6
0.0
0.0
4.7
4.5
1.9
1.9
3.0
3.5
0.0
3.5
3.2
3.5
Pin
No.
55
56
I001 57
58
59
60
61
62
63
64
1
I002 2
3
1
2
3
I003
4
5
6
7
8
1
2
I004 3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
I005 7
8
9
10
11
12
13
Circuit
No.
Voltage
DC
3.5
0.0
3.4
3.4
4.6
4.6
3.5
1.8
1.8
0.0
3.5
0.0
3.5
0.0
0.0
0.0
0.0
4.7
4.7
0.0
5.1
5.1
0.0
0.0
3.5
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
5.1
4.9
0.0
0.0
5.1
2.6
2.3
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
2.9
2.9
I005
I006
I007
Q001
Q002
Q003
Q004
Q005
Q006
Q007
Pin
No.
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
Voltage
DC
2.9
2.3
8.9
0.0
4.9
4.1
4.1
4.7
0.4
4.7
0.0
0.0
4.9
0.0
0.0
5.0
4.8
4.7
5.0
0.0
0.3
0.4
1.9
0.4
0.4
0.4
0.0
5.0
0.9
0.0
0.0
0.0
4.7
4.7
5.0
0.0
0.0
3.4
3.5
3.4
0.0
0.0
0.8
0.0
0.0
0.0
1.9
0.0
0.0
3.4
0.0
-1.5
3.0
0.0
0.2
2.9
Circuit
No.
Pin
No.
E
Q008 B
C
E
Q009 B
C
E
Q010 B
C
E
Q011 B
C
E
Q012 B
C
E
Q013 B
C
E
Q014 B
C
E
Q015 B
C
E
Q016 B
C
E
Q017 B
C
E
Q018 B
C
E
Q019 B
C
E
Q020 B
C
E
Q021 B
C
E
Q022 B
C
E
Q023 B
C
E
Q024 B
C
E
Q025 B
C
E
Q026 B
C
Voltage
DC
5.7
5.8
0.5
5.2
5.2
0.0
0.0
0.0
2.9
5.8
5.8
0.6
5.8
5.2
0.0
4.6
5.2
8.9
4.6
5.2
8.9
3.0
2.4
0.0
2.4
3.0
8.9
0.0
0.8
0
3.5
2.8
3.4
0.0
0.4
1.9
0.0
0.4
1.6
0.0
0.0
35.1
35.1
34.9
0.0
0.0
0.0
34.9
3.1
3.1
0.0
3.6
4.1
5.1
0.0
0.7
0.0
08-11
DC VOLTAGES
Signal (2/5)
Circuit
No.
Circuit
No.
I301
Pin
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Voltage
DC
0.0
0.0
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.1
2.9
2.5
1.3
1.3
1.3
0.0
2.6
2.6
1.9
2.1
0.7
1.6
0.0
1.6
2.1
0.0
0.0
0.0
0.0
0.0
1.6
3.3
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
3.3
3.3
1.9
0.0
I301
Pin
No.
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
Voltage
DC
0.0
1.6
0.0
0.0
3.4
0.0
0.0
0.0
3.3
0.0
4.6
4.6
0.0
0.0
0.0
3.3
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
3.3
0.0
0.0
0.0
1.1
0.0
0.0
1.2
0.9
1.1
1.6
3.3
0.0
0.0
3.3
0.0
Circuit
No.
Pin
No.
97
98
99
100
1
I302 2
3
4
5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
I303 20
21
22
23
24
25
26
27
28
29
30
21
32
33
34
35
36
37
38
39
40
I301
Voltage
DC
0.0
0.6
1.6
3.3
0.0
0.0
0.0
3.3
3.3
5.0
2.1
2.1
1.9
2.1
5.0
1.8
1.6
1.6
0.7
0.0
0.0
2.9
0.6
0.0
1.6
1.6
1.6
1.6
5.0
0.0
1.6
1.6
1.6
1.6
1.6
2.5
1.1
1.1
0.0
1.3
3.0
1.9
2.1
0.0
2.5
1.9
2.1
2.1
0.0
Circuit
No.
I501
Pin
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Voltage
DC
4.0
4.0
4.0
2.2
0.0
1.8
6.0
3.0
0.0
7.3
0.0
5.7
4.8
0.0
1.0
0.0
0.6
8.9
8.9
4.5
4.3
4.3
0.0
0.0
5.8
0.0
0.0
0.0
0.0
0.0
5.5
0.0
0.0
4.6
0.0
0.0
2.2
2.8
0.0
0.0
5.0
5.0
0.0
3.1
0.0
3.8
2.3
2.5
08-12
DC VOLTAGES
Signal (3/5)
Circuit
No.
Circuit Pin Voltage
No. Name
DC
Circuit Pin Voltage
No. Name
DC
Circuit Pin Voltage
No. Name
DC
E
Q305 B
C
E
Q306 B
C
E
Q307 B
C
E
Q308 B
C
E
Q309 B
C
E
Q310 B
C
E
Q311 B
C
E
Q312 B
C
E
Q313 B
C
E
Q314 B
C
E
Q315 B
C
E
Q316 B
C
E
Q317 B
C
E
Q501 B
C
E
Q504 B
C
E
Q505 B
C
E
Q551 B
C
E
Q552 B
C
E
Q553 B
C
E
Q554 B
C
E
Q555 B
C
E
Q556 B
C
E
Q557 B
C
E
Q558 B
C
E
Q559 B
C
E
Q560 B
C
E
Q561 B
C
E
Q562 B
C
E
Q563 B
C
E
Q564 B
C
I502
I503
Q301
Q302
Q303
Q304
Pin
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
E
B
C
E
B
C
E
B
C
E
B
C
Voltage
DC
2.5
0.0
1.8
0.0
1.8
1.8
0.0
2.4
2.8
0.0
2.5
0.0
5.0
2.5
0.0
2.5
0.0
0.2
5.0
4.7
0.0
0.0
0.0
0.0
0.0
4.9
4.9
5.0
0.3
0.0
4.7
5.0
2.0
2.3
3.1
3.3
3.1
0.0
0.0
0.0
2.8
0.4
0.0
0.0
0.0
0.0
1.7
0.0
0.0
0.0
3.0
3.6
8.9
2.5
1.9
0.0
0.0
0.4
0.0
0.0
0.4
1.6
1.7
1.6
1.2
1.1
1.2
1.7
0.0
0.0
0.0
1.2
1.8
8.3
8.9
8.3
5.2
4.6
0.0
8.9
2.7
2.1
0.0
0.0
0.8
0.0
0.0
0
4.9
1.6
2.2
0.0
4.9
4.3
0.0
4.9
4.3
0.0
5.1
4.5
0
4.8
0
8.9
3.3
0.0
8.9
0
0
8.9
3.2
3.8
0.0
1.2
1.8
8.9
0.0
0.7
0.0
5.2
5.0
8.9
4.1
3.5
0.0
5.2
5.0
8.9
4.2
3.6
0.0
2.3
1.7
0.0
08-13
DC VOLTAGES
Signal (4/5)
Circuit
No.
Circuit
No.
Pin
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
IC01 17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Voltage
DC
1.6
5.5
5.3
5.2
5.1
0.0
0.2
5.2
5.2
5.2
7.1
3.3
4.8
2.1
3.3
3.3
1.6
1.6
9.2
6.7
5.5
2.9
2.6
1.2
0.0
1.4
5.1
0.2
2.2
4.6
4.6
0.0
4.1
4.1
4.1
0.6
4.1
4.1
4.1
9.2
2.7
2.7
2.7
0.0
9.2
4.9
4.9
4.7
0.0
0.0
IC01
IC02
IC03
IC04
QC01
QC02
QC03
QC04
QC05
QC06
QC07
QC08
QC09
Pin
No.
51
52
53
54
55
56
1
2
3
1
2
3
1
2
3
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
Voltage
DC
0.0
0.0
5.8
4.2
9.2
5.6
7.2
0.0
5.0
4.2
0.0
3.4
5.0
0.0
2.5
0.0
0.6
1.7
0.5
0.6
1.7
0.5
0.6
0.0
3.5
4.1
9.2
3.4
4.0
9.2
3.5
4.1
0.0
1.1
1.2
1.8
0.0
1.2
0.0
1.1
1.1
1.8
Circuit Pin Voltage
No. Name
DC
Circuit Pin Voltage
No. Name
DC
E
QC10 B
C
E
QC11 B
C
E
QC12 B
C
E
QC13 B
C
E
QC14 B
C
E
QC15 B
C
E
QC16 B
C
E
QC17 B
C
E
QC18 B
C
E
QC19 B
C
E
QC20 B
C
E
QC21 B
C
E
QC22 B
C
E
QC23 B
C
E
QC24 B
C
E
QC26 B
C
E
QC30 B
C
E
QC31 B
C
E
QC35 B
C
E
QC36 B
C
E
QC40 B
C
E
QC41 B
C
E
QC42 B
C
0.4
0.0
9.2
9.2
9.2
1.0
0.0
0.0
1.8
1.6
0.0
0.0
1.2
0.0
9.2
1.2
0.6
9.2
0.0
0.0
9.2
0.0
0.0
9.2
6.9
7.5
9.2
0.7
0.0
0.0
0.7
0.0
0.0
0.7
0.0
0.0
0.7
0.0
0.0
0.7
0.0
0.0
0.7
0.0
0.0
3.5
4.2
9.3
3.3
2.6
0.0
8.0
0.0
3.3
3.3
2.6
0.0
8.0
0.0
0.0
3.4
2.7
0.0
0.0
7.3
3.4
0.0
0.4
0.0
08-14
DC VOLTAGES
Signal (5/5)
Deflection
Circuit Pin Voltage
No. Name
DC
Circuit
No.
IJ01
1
2
3
4
5
6
7
8
9
10
11
12
1.6
0.0
0.0
0.0
1.6
10.8
14.8
5.1
31.7
0.0
4.3
14.4
Circuit Pin Voltage
No. Name
DC
E
QJ01 B
C
E
QJ02 B
C
E
QJ03 B
C
E
QJ04 B
C
Circuit
No.
Pin
No.
E
QH01 B
C
E
QH02 B
C
E
QH03 B
C
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
4.2
0.0
0.0
10.8
Voltage
DC
0.4
3.8
90.0
0.0
0.5
3.8
0.0
0.5
59.1
Pin
No.
1
2
3
4
I601 5
6
7
8
9
10
11
1
2
3
4
5
6
7
IH01 8
9
10
11
12
13
14
15
16
Circuit
No.
Pin
No.
E
QN01 B
C
E
QN02 B
C
E
QN03 B
C
E
QN04 B
C
E
QN05 B
C
E
QN06 B
C
Power Deflection
Voltage
DC
14.3
26.6
4.9
6.7
4.5
0.0
5.3
6.1
4.5
27.0
1.0
5.2
11.6
0.8
2.5
1.7
0.0
0.9
0.0
7.1
7.1
7.1
7.1
2.5
1.9
5.0
0.0
Voltage
DC
0.0
0.0
0.5
11.4
11.4
0.0
0.0
0.0
11.4
0.5
0.9
11.4
0.0
0.0
11.5
0.0
0.4
0.0
Circuit Pin Voltage
No. Name
DC
E
Q601 B
C
E
Q602 B
C
E
Q603 B
C
E
Q604 B
C
E
Q701 B
C
E
Q703 B
C
E
Q704 B
C
E
Q705 B
C
E
Q706 B
C
E
Q707 B
C
E
Q708 B
C
E
Q709 B
C
E
Q710 B
C
E
Q777 B
C
0.0
0.3
4.2
0.0
0.0
0.5
0.0
0.0
5.2
27.2
27.0
0.0
92.1
93.1
115.5
2.3
3.0
93.1
0.0
0.5
14.1
0.0
0.7
0.0
1.3
0.8
11.6
0.0
0.7
0.0
0.0
0.0
11.1
0.0
0.4
11.1
0.0
0.3
0.0
0.0
0.0
90.0
Circuit Pin Voltage
No. Name
DC
IP01
IP02
IP03
IP04
IP05
IP06
1
2
3
4
5
1
2
3
4
1
2
3
1
2
3
4
1
2
3
4
1
2
3
4
2.0
0.0
161.3
15.4
0.0
12.0
11.1
3.0
15.4
115.6
11.0
0.0
11.7
9.1
0.0
1.9
7.4
5.1
0.0
1.9
7.4
6.3
0.0
2.1
Circuit Pin Voltage
No. Name
DC
E
QP02 B
C
E
QP03 B
C
116.0
115.5
1.3
9.1
9.1
0.0
08-15
DC VOLTAGES
SRS/BBE
Circuit
No.
IA01
IA02
Pin
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Voltage
DC
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
0.8
4.5
1.2
1.2
4.5
4.5
0.0
8.9
0.0
4.8
1.4
1.4
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
0.0
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
8.9
0.0
4.5
0.0
0.0
4.5
4.5
4.5
4.5
0.0
Circuit
No.
IA02
IA07
Pin
No.
20
21
22
23
24
1
2
3
4
5
6
7
8
Voltage
DC
4.5
4.5
4.5
4.5
4.5
4.9
4.9
4.9
0.0
4.8
4.8
4.8
8.9
Circuit Pin Voltage
No. Name
DC
E
QA01 B
C
E
QA02 B
C
E
QA03 B
C
E
QA04 B
C
E
QA05 B
C
1.4
2.1
8.2
8.9
8.2
5.0
1.4
2.1
8.2
8.9
8.2
4.9
0.0
0.0
0.0
VM
FOCUS
Circuit Pin Voltage
No. Name
DC
Circuit Pin Voltage
No. Name
DC
E
QE01 B
C
E
QE02 B
C
E
QE03 B
C
E
QE04 B
C
E
QE05 B
C
E
E07 B
C
E
QE08 B
C
E
QE10 B
C
E
QE11 B
C
E
QE22 B
C
E
QE23 B
C
E
QE24 B
C
E
QE25 B
C
E
QE26 B
C
E
QE35 B
C
E
QE36 B
C
E
QF03 B
C
E
QF04 B
C
E
QF05 B
C
E
QF06 B
C
E
QF07 B
C
E
QF08 B
C
2.6
3.3
12.5
12.5
11.8
27.4
12.5
13.1
22.1
21.4
22.1
27.4
1.6
2.2
15.3
16.0
15.4
0.0
15.4
16.0
27.4
14.8
14.4
27.4
14.6
14.0
0.0
214.5
214.0
10.6
213.4
213.0
121.6
121.6
134.1
116.4
16.6
17.1
116.0
0.9
1.5
16.6
11.8
12.3
155.0
11.8
12.5
27.4
0.6
1.2
5.7
5.6
5.7
0.7
0.3
0.7
11.2
11.4
11.6
302.0
401.0
301.0
788.0
10.2
10.7
354.0
08-16
DC VOLTAGES
Power supply
Convergence
Circuit
No.
Circuit
No.
I901
I902
I903
I904
I906
Pin
No.
1
2
3
4
5
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
5
Voltage
DC
163.9
0.0
0.0
16.9
2.4
5.2
4.3
3.5
17.5
5.0
4.3
0.0
16.8
4.8
5.5
5.2
2.4
0.0
1.9
9.5
9.1
11.0
IK01
IK02
IK04
IK05
Pin
No.
1
2
3
1
2
3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Sensor
Voltage
DC
11.6
0.0
5.1
4.0
5.0
0.0
0.0
0.0
-29.3
-30.4
31.0
0.0
0.0
-26.9
0.0
27.2
0.0
-26.9
0.0
0.0
0.0
0.0
-26.9
0.0
0.0
0.0
-29.3
-30.4
31.0
0.0
0.0
-26.9
0.0
27.2
0.0
-26.9
0.0
0.0
0.0
0.0
-26.9
0.0
Circuit
No.
Pin
No.
E
QK01 B
C
E
QK02 B
C
E
QK03 B
C
E
QK06 B
C
E
QK07 B
C
E
QK08 B
C
Voltage
DC
-7.1
-6.5
-5.3
0.6
0.0
0.0
0.6
0
-5.8
0
0
5.1
0
0
5.1
0.0
0.0
5.1
Circuit
No.
Pin
No.
E
QL10 B
C
E
QL11 B
C
E
QL16 B
C
E
QL17 B
C
Voltage
DC
5.1
4.7
0
5.2
4.7
1.6
5.1
4.7
0.0
0.5
4.7
0.0
08-17
DC VOLTAGES
Circuit
No.
Pin
No.
1
2
3
4
5
6
7
IX01 8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Voltage
DC
3.9
4.4
4.0
4.4
4.4
8.3
0.0
3.9
4.4
3.9
4.4
4.4
0.0
4.8
3.9
4.4
3.9
4.4
4.4
0.0
4.8
4.4
4.4
3.9
4.4
4.4
0.0
4.8
4.4
4.4
4.4
0.0
4.7
4.7
0.0
0.0
4.4
4.4
3.5
4.4
4.2
8.8
4.4
4.2
4.4
3.5
4.4
0.0
Terminal (1 of 2)
Circuit
No.
Pin
No.
49
50
51
52
53
54
55
IX01 56
57
58
59
60
61
62
63
64
1
2
IX02 3
4
5
1
2
3
4
5
6
7
8
IX03 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
Voltage
DC
4.7
4.4
4.4
4.4
4.2
4.4
3.6
4.0
0.0
4.3
4.4
3.9
4.4
4.4
4.2
4.4
6.3
0.0
3.8
4.9
8.7
4.0
4.0
4.0
2.2
0.0
1.8
5.9
2.9
0.0
7.2
0.0
5.6
4.7
0.0
1.0
0.0
0.6
8.7
8.7
4.4
4.4
4.2
8.7
0.0
5.7
5.7
5.5
Circuit
No.
Pin
No.
28
29
30
31
32
33
34
IX03 35
36
37
38
39
40
41
42
43
44
45
46
47
48
1
2
3
4
5
6
7
8
IX04 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
Voltage
DC
0.0
5.5
5.5
5.5
0.6
4.4
4.5
0.0
0.0
2.2
0.0
0.0
2.7
4.9
4.9
0.0
3.1
0.0
3.7
2.3
2.2
2.8
2.8
2.8
1.0
1.0
0.0
2.8
2.8
2.8
1.1
1.1
4.9
3.4
3.4
3.2
3.0
0.0
1.1
0.0
2.9
0.0
0.0
0.0
0.0
2.5
2.5
2.3
Circuit
No.
IX04
IX05
Pin
No.
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
Voltage
DC
4.9
0.0
4.6
4.6
0.0
2.8
2.8
2.8
1.1
1.2
2.2
2.4
4.9
2.8
2.8
2.8
1.1
1.1
0.0
2.4
0.0
2.8
2.8
2.8
1.0
1.0
0.0
2.8
2.8
2.8
1.1
1.1
4.9
3.4
3.4
3.2
3.0
0.0
1.1
0.0
2.9
0.0
0.0
0.0
0.0
2.5
2.5
2.3
08-18
DC VOLTAGES
Circuit
No.
IX05
IX06
IX07
Pin
No.
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
Voltage
DC
4.9
0.0
4.6
4.6
4.9
2.8
2.8
2.8
1.1
1.2
2.2
2.4
4.9
2.8
2.8
2.8
1.1
1.1
0.0
2.4
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Terminal (2 of 2)
Circuit
No.
IX07
IX08
IX09
Pin
No.
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Voltage
DC
0.0
0.0
0.0
0.0
5.0
0.0
5.0
4.7
0.0
4.8
0.0
0.0
5.0
0.0
4.8
0.0
0.0
0.0
5.0
0.0
5.0
5.0
5.0
0.6
0.0
4.6
0.0
0.0
0.0
5.0
4.4
0.0
0.0
0.0
5.0
Circuit
No.
Pin
No.
E
QX01 B
C
E
QX02 B
C
E
QX03 B
C
E
QX04 B
C
E
QX05 B
C
E
QX06 B
C
E
QX07 B
C
E
QX08 B
C
E
QX09 B
C
E
QX10 B
C
E
QX11 B
C
E
QX12 B
C
Voltage
DC
3.5
4.2
8.8
2.9
3.5
8.8
3.7
4.3
8.8
3.6
4.2
8.8
3.5
4.2
8.8
3.7
4.4
8.8
3.6
4.2
8.8
4.9
4.3
0.0
4.6
4.0
0.0
5.0
5.6
8.8
6.0
6.6
8.8
6.2
6.8
8.8
Circuit Pin Voltage
No. Name
DC
E
QX13 B
C
E
QX14 B
C
E
QX15 B
C
E
QX16 B
C
E
QX17 B
C
E
QX18 B
C
E
QX19 B
C
E
QX20 B
C
E
QX21 B
C
E
QX22 B
C
E
QX23 B
C
E
QX24 B
C
E
QX36 B
C
E
QX37 B
C
E
QX40 B
C
E
QX41 B
C
5.0
4.4
0.0
4.8
4.3
0.0
4.8
4.2
0.0
2.6
3.2
4.9
2.5
3.2
4.9
2.9
2.3
0.0
3.2
2.6
0.0
3.2
2.5
0.0
2.9
2.3
0.0
3.2
2.6
0.0
3.2
2.5
0.0
5.2
4.6
0.0
0.5
1.1
9.2
0.0
0.6
5.5
0.0
0.0
0.0
0.0
0.0
0.0
08-19
DC VOLTAGES
CPT
CPT
Power Supply
Control
Circuit Pin Voltage
No. Name
DC
Circuit Pin Voltage
No. Name
DC
Circuit Pin Voltage
No. Name
DC
Circuit Pin Voltage
No. Name
DC
E
Q801 B
C
E
Q802 B
C
E
Q803 B
C
E
Q804 B
C
E
Q805 B
C
E
Q812 B
C
E
Q851 B
C
E
Q852 B
C
E
Q853 B
C
E
Q854 B
C
E
Q855 B
C
E
Q858 B
C
E
Q859 B
C
E
Q862 B
C
E
Q8A1 B
C
E
Q8A2 B
C
E
Q8A3 B
C
E
Q8A4 B
C
E
Q8A5 B
C
E
Q8A6 B
C
E
Q8A7 B
C
E
Q8C1 B
C
E
Q8C2 B
C
E
Q901 B
C
E
Q902 B
C
E
Q914 B
C
E
Q915 B
C
E
Q916 B
C
E
Q917 B
C
E
Q918 B
C
E
Q919 B
C
E
Q920 B
C
E
QM01 B
C
E
QM03 B
C
E
QM04 B
C
E
QM05 B
C
3.0
3.5
8.3
8.3
8.6
0.0
8.6
9.1
168.0
169.0
168.4
1.1
169.0
170.0
225.0
1.0
1.7
1.1
3.1
3.5
8.3
8.3
8.6
9.1
8.6
9.1
156.4
157.0
156.0
1.1
157.0
157.0
224.9
2.5
1.8
0.0
1.8
2.5
9.1
1.1
1.8
1.1
3.2
3.8
8.3
8.2
8.6
9.1
8.6
9.1
150.0
151.6
150.8
1.1
152.0
152.0
224.0
3.0
3.0
0.0
3.0
3.7
9.1
0.0
0.0
9.0
1.1
0.0
1.1
16.9
16.9
0.0
0.0
0.0
16.9
0.0
0.9
0.5
1.9
1.9
0.1
0.0
0.1
1.9
2.2
2.5
5.2
0.0
0.0
4.3
2.2
2.2
0.1
2.9
3.5
17.5
0.0
0.8
0.0
1.8
2.5
9.0
1.9
2.5
8.9
0.0
0.0
5.2
08-20
DP-1X OVERLAY PART NUMBERS
Below is the jig screen part number for the 2H models.
2001 Models
HITACHI MODELS:
H312259 43” 16x9
H312257 53” 16x9
H312258 61” 16x9
PHILIPS MODELS:
H312262 60” Phillips 4x3 V Squeeze Mode
H312264 55” Philips 4x3 V Squeeze Mode
ZENITH MODELS:
H312265 56” Zenith 16x9
H312266 65” Zenith 16x9
PAGE 08-21
SERVICE BULLETINS
AND OTHER
INFORMATION
DP-1X CHASSIS
SECTION 9
March, 2001
Hitachi America, Ltd., Home Electronics Division
National Service
PTV
Page 1 of 2
MODEL:
43FDX01B, 53FDX01B
53SDX01B, 61SDX01B
53SWX01W, 61SWX01W
SUBJECT:
CLARIFICATION OF MEMORY INITIALIZATION PROCEDURE
When servicing any of the above mentioned models, the service technician should be cautioned that
the standard technique of blindly re-initializing the memory whenever a problem is presented could
possibly cause additional labor in order to bring the set back to it’s original settings. Be sure to
note the values for sub brightness (SUB BRT) and horizontal centering (H-POSI) before
proceeding with a complete memory initialization, as the values that will show up after performing
memory initialization may not be correct. Uncorrected or misadjusted SUB BRT will result in
either a darker or lighter picture than before. (And the customer will notice!) Uncorrected or
misadjusted H POSI will result in a shadow or fold-over on either side of the screen. Do not
attempt to make corrections via Digital Convergence correction; instead, input the correct values for
these settings. When an initialization of memory is needed, there are two methods: electronic
(preferred) and mechanical.
Electronic Memory Initialization (Service Adjust Mode)
1.
2.
3.
4.
5.
6.
The set should be off, but plugged in to AC.
Press and hold the INPUT button on the front panel.
Press the POWER button on the front panel.
Release both buttons.
The Service Adjust Mode menu should appear on screen. (See Figure 1). Before proceeding to
MEMORY INITIAL, it is highly recommended to note the existing setting for Sub Brightness
as well as the existing settings for Horizontal Centering in both progressive and high definition
modes.
Select SUB BRT using the ! or " buttons on the remote, then press the #cursor key on the
remote. The screen will darken considerably and SUB BRT with its associated value will
appear on screen. Note the existing value. To adjust, press cursor $ or #. To exit from SUB
BRT adjustment, press cursor ! or ". In case the memory was initialized prior to acquisition
of the existing data value, refer to the service manual in order to correctly adjust the SUB BRT.
ADJUST MODE
SUB BRT
!"
Brings up sub brightness adjust (cursor #)
SERVICE
!
Collapses vertical for setting color temp
DEF RESET
!
Select when replace DEF PWB
V/P RESET
!
Select when replace SIG PWB
3DYC RESET
!
Select when replace 3DYC comb filter
FLEX RESET
!
Select when replace FLEX CONVERTER
DSP RESET
!
Select when replace DSP module
CCD RESET
!
Select whenever closed caption fails to track
FACTORY RESET
!
Resets all customer settings
MEMORY INITIAL
!
Resets all of the above (ONLY DO IF NECESSARY*)
Figure 1 - Service Menu Page 1
(continued)
Page 09-01
PTVPage
01-01 (page
2 2)
7.
To access the horizontal centering adjustment for progressive, display NTSC (or 480i), then go to service menu page 2 (Figure 2)
by either pressing the MENU button once, or using the "cursor key on the remote to scroll down through service menu page 1.
The first menu selection on service menu page 2 is H POSI. Note the existing value. Also note that the setting for TA1300 is 315
(31.5 KHz). In case the memory was initialized prior to acquisition of the existing data value, refer to the service manual in order
to correctly set up the H POSI for progressive.
8. To access the horizontal centering adjustment for high definition, display 1080i, then go to service menu page 2 (Figure 3) by
either pressing the MENU button once, or using the "cursor key on the remote to scroll down through service menu page 1. The
first menu selection on service menu page 2 is H POSI. Note the existing value. Also note that the setting for TA1300 is 3375
(33.75 KHz). In case the memory was initialized prior to acquisition of the existing data value, refer to the service manual in
order to correctly set up the H POSI for high definition.
9. After the existing values for SUB BRT and H POSI have been noted, proceed to MEMORY INITIAL by using the ! or "
buttons on the remote to navigate to service menu page 1, then press the #cursor key on the remote to initialize the memory.
10. Re-enter recorded data values, if known, for (1) SUB BRT and (2) H POSI in both progressive and high definition modes.
11. To exit from Service Adjust Mode, press the INPUT button on the front panel.
ADJUST MODE
ADJUST MODE
31.5 KHz
TA1300
H POSI
315
TA1300
32
FLEX CONT
47 VD-POS
33.75 KHz
3375
H POSI
2B
FLEX CONT
3F
UPD64081
47 VD-POS
3F
UPD64081
DYGA
09
DYGA
09
DCGA
06
DCGA
06
VAPGA
05
VAPGA
05
VAPIN
0B
VAPIN
0B
YHCOR
00
YHCOR
00
Figure 2 - Service Menu Page 2 (NTSC)
Figure 3 - Service Menu Page 2 (1080i)
Mechanical Memory Initialization (PERFORM ONLY WHEN NECESSARY*)
1. Disconnect power to the set.
2. Remove the back cover.
3. Remove the two screws holding the chassis to the cabinet, if necessary.
4. Disconnect wiring harness clips to free up the chassis, if necessary.
5. Reconnect power to the television and turn the set on.
6. If possible, go into service adjust mode (as previously described) and note
settings for SUB BRT and H POSI.
7. Locate PP1 and place a jumper across pins 1 and 2. See Figure 4.
8. Hold jumper in place for approximately five seconds. (There will not be an
audible tone).
9. Remove the jumper.
10. Confirm EEPROM reset. Input source is now set to AIR, and not CABLE 1 or
2, no CHILD LOCK, and only channels 2-13 are in memory.
11. If step 6 was performed, re-enter settings for SUB BRT and H POSI.
12. If step 6 was not performed, adjust both SUB BRT and H POSI in accordance
with the applicable service manual.
13. Re-assemble chassis and re-install PTV back cover. Set is now ready for
operation.
JUMPER
3 .3 V
1
2
PP1
D 0 24
R 1 E4
R 1 00
7
20
K E Y -IN 1
CLOCK
I001
Microprocessor
Figure 4 - Schematic Location of Connector PP1
* Definition of Necessary
Perform Mechanical Memory Initialization only if I001 (main micro) or I002 (EEPROM) have been replaced and there is no visible
display.
Page 09-02
July, 2001
National Service
PTV
Page 1 of 1
MODEL:
43FDX01B, 53FDX01B
53SDX01B, 61SDX01B
53SWX01W, 61SWX01W
SUBJECT:
HORIZONTAL NOISE PRESENT WHEN COLD
Phenomenon:
There have been reports from the field of isolated cases involving the above mentioned models that
may experience a kind of horizontal noise symptom when operated from a cold start. (See Figures
1 and 2). This symptom will gradually decay as it warms up, until it is no longer noticeable. This
problem can be attributed to the anode cap connector. The anode cap connector may not be firmly
secured to the PRT, thus causing interference noise due to high voltage arcing and leakage. A new
and improved anode cap connector utilizes a tension mechanism, in the form of a silicone rubber
insert. (See Figures 3 and 4).
Countermeasure:
To identify which PRT has a problem, wait until the arcing has stopped, then carefully wiggle the
anode connector wire with a wooden stick. BE CAREFUL NOT TO WIGGLE THE ANODE
CONNECTOR WIRE TOO HARD. When the defective PRT has been located, replace the
entire anode cap connector and wire using Hitachi part number EZ01322.
Procedure:
1. Turn off the PTV.
2. Remove back of PTV and disconnect all cables going to the suspect PRT.
3. Remove screen frame assembly.
4. Remove the PRT assembly.
5. Remove the HV anode lead and cup from the PRT.
6. Ensure that HV anode cup location is completely cleaned of all old silicon sealant residue.
7. Install new and improved HV anode lead. Place a 3/8” bead of silicon sealant (Hitachi part
number 9413926) on the CRT around the lip of the HV anode. NOTE: Do not allow sealant to
contact any metal connector parts.
8. Re-assemble PTV and adjust if necessary.
Figure 1
NTSC Color Bars
ANODE CAP
Figure 3
Old Cap - No silicone rubber insert
Figure 2
NTSC Color Bars with horizontal noise
ANODE CAP
Figure 4
New Cap - silicone rubber insert added
Page 09-03
August, 2001
National Service
PTV
Page 1 of 1
MODEL:
50DX10B, 60DX10B
43GX10B, 50GX30B
53SBX10B, 61SBX10B
HP11 CHASSIS
HP12 CHASSIS
HP13 CHASSIS
SUBJECT:
CUSTOMER COMPLAINT OF EXCESSIVE NOISE IN PINP
Details:
Reportedly, some customers may complain about noise in the sub-picture. This symptom can
only manifest under two coexisting conditions, (i.e. both conditions must be met). (1) Only
when using a source of composite video. (2) Only with certain brand name DVD or VCR as a
source for Picture-In-Picture. If this complaint is received, perform the following circuit
improvement.
Procedure:
1. Replace RG46 (0.0 ohm chip resistor jumper) with 1.0K ohm chip resistor (p/n 0700041).
2. Replace RG47 (0.0 ohm chip resistor jumper) with 270 ohm chip resistor (p/n 0700033M).
3. Add C1 100pf capacitor (p/n 0890074) as per Figure 1.
4. Add C2 100pf capacitor (p/n 0890074) as per Figure 1.
5. Add L1 100uh coil (p/n 2122956M) as per Figure 1.
The above mentioned parts can be obtained by ordering parts kit X480231.
Figure 1
101
RG47
L1
101
RG46
C1
C2
Page 09-04
August, 2001
National Service
MODEL
43FDX01B
53FDX01B
53SDX01B
61SDX01B
53SWX01W
61SWX01W
CHASSIS
DP05F
DP05
DP06
DP06
DP07
DP07
PTV
Page 1 of 1
MODEL
43UWX10B
53UWX10B
61UWX10B
CHASSIS
DP14G
DP14G
DP14G
MODEL
50DX10B
60DX10B
43GX10B
50GX30B
53SBX10B
61SBX10B
CHASSIS
HP11
HP11
HP12
HP12
HP13
HP13
53UDX10B
61UDX10B
53SWX10B
53SWX12B
61SWX10B
61SWX12B
DP15
DP15
DP17
DP17
DP17
DP17
SUBJECT:
DIGITAL CONVERGENCE ADJUSTMENT MODE ACCESS
Details:
In the past, when the technician needed to enter the Digital Convergence Adjustment Mode (DCAM),
it was necessary to open the front of the unit to access the service switch. Now, to access the DCAM
without removing the front panel, please follow the below instructions.
Procedure for Chassis DP14G, DP15, DP17:
1. Press the MAGIC FOCUS button on front panel.
2. While Magic Focus is running, press MAGIC FOCUS button again to “stop”.
3. When “STOP” is displayed in OSD, press RECALL or STATUS button on remote control.
4. The unit will now be in the DCAM.
Procedure for Chassis DP06, DP07, HP13:
1. Press and hold the MAGIC FOCUS button on front panel.
2. While the button is held down, the OSD will change from “MAGIC FOCUS” to “CENTER
MODE”, then to “STATIC MODE”.
3. When “STATIC MODE” is displayed in OSD, press INPUT or ANT button on remote control.
Procedure for Chassis DP05F, DP05, HP11, HP12:
1. Press and hold the DIGITAL ARRAY or CONVERGENCE ADJUST button on front panel.
2. While the button is held down, then press the INPUT or ANT button on remote control.
NOTE:
1. Proceed with digital convergence adjustment. Remember to save/initialize the correction data.
2. To exit, press POWER button on the front panel.
NOTE: DP-15E (43FDX10B and 43FDX11B) can not enter DCAM via remote.
Page 09-05
August, 2001
National Service
MODEL
43FDX01B
53FDX01B, 53FDX01BA
53SDX01B, 61SDX01B
53SWX01W, 61SWX01W
SUBJECT:
PTV
Page 1 of 1
CHASSIS
DP05F
DP05
DP06
DP07
INTERMITTENT BLACK HORIZONTAL BARS
Details:
We have received isolated field reports with a symptom of highly intermittent black
horizontal bars appearing in the picture. If the unit is removed from the customers
location, the symptom more than likely will not show up. The cause of this
phenomenon results from low AC. These models are designed to operate normally
when using 120VAC ±10% (108VAC - 132VAC). The symptom will occur when
AC drops below 90VAC.
Countermeasure:
(NOTE - Only perform this countermeasure for specific customer complaint)
Procedure:
1. Change value of capacitor C009 from 10uF/16V to 22uf/16V. Use locally
procured part for new capacitor (22uf/16V). C009 is located on the SIGNAL
PWB near the IC01 heat sink and the PR connector.
2. Verify the effectiveness of this countermeasure by dropping AC to less than
90VAC using a variable AC isolation transformer. Symptom may still manifest
at lower than 80VAC.
Page 09-06
September, 2001
National Service
PTV
Page 1 of 1
MODEL:
ALL PTV WITH ULTRA-SHIELD PROTECTOR
SUBJECT:
REMOVAL OF PROTECTIVE PLASTIC SHEET
DETAILS:
It has been discovered that on some TV sets with screen protectors, the plastic sheet
leaves a film or a glue residue after it’s removal. To remove the glue residue from
the screen protector, please follow the approved method listed below.
CORRECTION:
1. Remove the screen protector sheet.
2. Use the cleaner *Endust for Electronics (see Figure 1) and spray over area with
glue residue on the screen.
3. Clean with a soft towel after application.
4. Observe that the glue residue has been removed.
TM
If the glue residue persists:
1. Use **Lava® Heavy-Duty Hand Cleaner Towels (see Figure 2) to remove glue
residue.
2. Observe that the glue residue has been removed.
3. Clean off the soap film left by the **Lava® Heavy-Duty Hand Cleaner Towels
using any generic type window cleaning solution.
PARTS:
* Endust for Electronics
TM
©1996
KIWI BRANDS
DOUGLASSVILLE, PA
19518-1239
**Lava® Heavy-Duty Hand Cleaner Towels
WD-40 Company
San Diego, CA 92110
Figure 1
Figure 2
Page 09-07
October, 2001
National Service
MODEL:
43UWX10B
53UWX10B, 53UWX10BA
61UWX10B, 61UWX10BA
53UDX10B, 53UDX10BA
61UDX10B
53SBX10B
PTV
Page 1 of 2
DP-14G CHASSIS
DP-14G CHASSIS
DP-14G CHASSIS
DP-15 CHASSIS
DP-15 CHASSIS
HP-13 CHASSIS
SUBJECT: MAGIC FOCUS METHOD
DETAILS:
Some of the new 2001 Projection TV models are using ‘Magic-S’ convergence
technology instead of the prior single cross-hatch technology. This new ‘Magic-S’
technology uses four sensors instead of eight. When the MAGIC FOCUS button on
the front panel is pressed, the television will automatically adjust itself to the factory
adjusted data.
NOTE:
BEFORE INITIATING MAGIC FOCUS, THE TELEVISION MUST BE TURNED
“ON” AND HEAT RUN FOR A MINIMUM OF 20 MINUTES. IF THE MAGIC
FOCUS BUTTON IS PRESSED BEFORE THE WARM-UP PERIOD IS
COMPLET, THE CONVERGENCE RESULTS MAY BE ABNORMAL. To
correct abnormal convergence, turn off the television and allow for cool down,
approximately 30 seconds. Turn on the television again, and allow for minimum of
20 minutes for warm up. If after pressing MAGIC FOCUS button still returns
abnormal convergence, follow the below procedure to access the Digital
Convergence Adjustment Mode (DCAM), then first attempt to correct by reading
old ROM data into memory. If this fails, proceed with digital convergence
adjustments.
PROCEDURE FOR DP14G AND DP15 CHASSIS:
1. Press the MAGIC FOCUS button on front panel.
2. While Magic Focus is running, press the MAGIC FOCUS button again to
“STOP”.
3. When “STOP” is displayed on the OSD, press the RECALL or the STATUS
button on the remote control.
5. Press the SWAP button twice to read old ROM data into memory. “READ
FROM ROM?” will display on the OSD after the first press of the SWAP
button.
6. Proceed with digital convergence adjustments ONLY if READ FROM ROM did
not clear up the convergence error.
7. Remember to save the correction data and initialize the MAGIC FOCUS sensors.
To save the correction data, press the PIP MODE button twice. “WRITE TO
(continued)
Page 09-08
Page 2 of 2 PTV 01-10
ROM?” will display on the OSD after the first press of the PIP MODE button. After the second press of
the PIP MODE button, the screen will go dark for approximately 20 seconds. When the data has been
saved, or ROM WRITE has been completed, green dots will appear on the OSD corresponding to the 13
x 9 crosshatch intersection adjustment points. After the green dots appear, press the MUTE button to
return to the DCAM. To initialize the Magic Focus sensors, first press the PIP MODE button once.
Again, “WRITE TO ROM?” will display on the OSD. Then press the PIP CH button to start the sensor
data position initialization procedure. When this process has completed, you will again see the green dots
on the OSD, unless an error has occurred in the initialization procedure, in which case the technician
would be presented with an error code in the lower left corner in the OSD corresponding to what the
actual error is. Failure to initialize MAGIC FOCUS sensors after saving convergence correction data will
result in a STATIC (+) display when MAGIC FOCUS attempts to run. The technician will then be
required to access the service only switch behind the front cover to get back into the DCAM to initialize
the sensors, since the procedure to access DCAM without removing the front panel, requires MAGIC
FOCUS to be running.
8. To exit, press the POWER button on the front panel.
PROCEDURE FOR HP13 CHASSIS:
1. Press and hold the MAGIC FOCUS button on the front panel.
2. While the button is held down, the OSD will change from “MAGIC FOCUS” to “CENTER MODE”,
then to “STATIC MODE”.
3. When “STATIC MODE” is displayed on the OSD, press the INPUT or the ANT button on the remote
control.
5. Press the SWAP button twice to read old ROM data into memory. “READ FROM ROM?” will display
on the OSD after the first press of the SWAP button.
6. Proceed with digital convergence adjustments ONLY if READ FROM ROM did not clear up
convergence error.
7. Remember to save the correction data and initialize the MAGIC FOCUS sensors. To save the correction
data, press the PIP MODE button twice. “WRITE TO ROM?” will display on the OSD after the first
press of the PIP MODE button. After the second press of the PIP MODE button, the screen will go dark
for approximately 20 seconds. When the data has been saved, or ROM WRITE has been completed,
green dots will appear on the OSD corresponding to the 13 x 9 crosshatch intersection adjustment points.
After the green dots appear, press the MUTE button to return to the DCAM. To initialize the Magic
Focus sensors, first press the PIP MODE button once. Again, “WRITE TO ROM?” will display on the
OSD. Then press the PIP CH button to start the sensor data position initialization procedure. When this
process has completed, you will again see the green dots on the OSD, unless an error has occurred in the
initialization procedure, in which case the technician would be presented with an error code in the lower
left corner in the OSD corresponding to what the actual error is. Failure to initialize MAGIC FOCUS
sensors after saving convergence correction data will result in a STATIC (+) display when MAGIC
FOCUS attempts to run.
8. To exit, press the POWER button on the front panel.
Page 09-09
December, 2001
PTV
National Service
Page 1 of 1
MODEL:
All Digital Models (2H)
SUBJECT:
Convergence & Symmetry Adjustments.
Complete Convergence Adjustments.
The only time a Screen Jig would be needed is when a new DCU is installed, or if the DCU RAM
has been cleared and saved “by accident”. If so, follow S/M instructions very closely, paying
special attention to the R and B OFFSET and Horizontal size and position on the I2C bus.
Touch Up:
All other conditions will be considered “touch up”. In other words, the original reference was never
lost. Most times, customers notice one or two areas where the colors are separated, or are not
symmetrical, as in the following examples: *NOTE: The values given on these examples are used
for reference ONLY.
3 in
4x3
Screen
Only top line seems tilted
Affected
Areas
3 in
16x9
Screen
4 in Top is bowing and left 4 in
side is not straight.
The Main Problem:
When customers complain that they notice a line that is not straight (see both examples given )
generally the convergence is adjusted to make the line white….but it will still be bowed or tilted.
This will become more obvious when viewing Widescreen formatted DVD on a 4x3, a menu from
a Set Top Box or when displaying a 4x3 format on the 16x 9 screen.
To touch it up:
Make sure Horizontal Position is correct– check Center before attempting touch up.
Turn OFF red and blue, work on GREEN only. Use a straight reference to place on top of the affected line. In this case tape a string from side to side using the frame as a measuring reference and
adjust the affected line to match the reference. Once the green is straight, turn red on and match to
green; then do the same with the blue.
A straight reference line may need to be placed on the left, top, bottom, right, etc,...if those areas
are affected.
Goal:
Assure the Green reference is straight and then make sure to place the red and blue on top of the
green. Make sure to adjust symmetry as well as convergence.
Note 1:
If unit has Magic Focus, make sure to save to RAM and then re-initialize Magic Focus sensors – Test Magic Focus before
leaving customer’s home. If unit does not have Magic Focus, just save to RAM...DO NOT try to re-initialize Magic Focus
sensors. If this is done, unit will display errors….this is normal, because there are no sensors to re-initialize.
Note 2:
There are TWO Convergence Modes on ALL Digital PTVs – Normal or Progressive and HD or High Definition. Treat each
independently of each other, each has a separate memory. Adjust or touch up normal and save, adjust or touch up HD and
save to RAM and to MF if applicable. DP-1X has two modes only on 4x3 screens; Normal and V Squeeze or Through
Mode (Aspect 5). All DP-1X 16x9 screens have only one mode, regardless of signal being used.
Note 3:
The HD mode is accessible ONLY when feeding 720p or 1080i from a Set Top Box or a Generator, even if there is no signal present. Just make sure the output of the Set Top Box is set to 1080i. There is no need for an HD source or generator to
do a touch up or complete convergence on Normal mode.
Page 09-10
February, 2002
Hitachi America Ltd. Home Electronics Division
National Service
MODEL:
53SDX89B, 60SDX88B DP-86 CHASSIS
43FDX01B, 53FDX01B DP-05 CHASSIS
53SDX01B, 61SDX01B DP-06 CHASSIS
53SWX01B, 61SWX01B DP-07 CHASSIS
SUBJECT:
POOR QUALITY PICTURE WHEN DISPLAYING 1H SIGNAL ON 2H PTV
PHENOMENOM:
There have been a number of reports regarding the picture quality of 2H sets while
receiving a 1H signal. Reports have included, but are not limited to, fuzzy picture,
frame lag, picture blurring with motion, etc.
REPLY:
HITACHI Engineering has received, reviewed, and confirmed these reports and
found the symptom to be normal. The reason is the signal sent by the broadcaster is
1H while the set is scanning at 2H. When the TV is receiving a 1H signal, the Flex
Converter circuitry has to artificially generate an extra line for each line received.
These extra lines are not the actual signal, but are re-created line samples from the
internal RAM of the Flex Converter. When the signal changes rapidly, as in fast
zooming, or panning at a high rate, these extra lines are re-created at a fixed rate and
occasionally are not created as rapidly as the signal is changing.
Page 09-11
THINGS YOU SHOULD KNOW
Please see the Web site;
http://www.hitachiserviceusa.com for a current
Things You Should Know section, as this section
is updated frequently.
Page 09-12
NOTES:
NOTES:

dp-1x chassis - Star TV and Appliance Repair Services

Transcription

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