MARINE RADAR - Weibo Marine Ltd.

MARINE RADAR
MODEL 1623
Your Local Agent/Dealer
9-52 Ashihara-cho,
Nishinomiya, Japan
Telephone :
0798-65-2111
Telefax :
0798-65-4200
All rights reserved.
Printed in Japan
FIRST EDITION : JAN. 2003
PUB.No. SME-35100-A
( KAOK ) MODEL1623
*SME35100A00*
*SME35100A00*
*SME35100A00*
Contents
Chapter 1 Circuit Description
1.1 General...........................................................................................................................1
1.2 Display unit....................................................................................................................2
1.3 Scanner unit ...................................................................................................................6
Chapter 2 Location of Parts
2.1 Display unit....................................................................................................................10
2.2 Scanner unit ...................................................................................................................11
Chapter 3 Adjustment
3.1 Display unit....................................................................................................................13
3.2 Scanner unit ...................................................................................................................13
Chapter 4 Maintenance
4.1 Removing display unit cover .........................................................................................14
4.2 Replacement of Major Parts in Display unit..................................................................15
(1) DU board............................................................................................................15
(2) Front panel .........................................................................................................15
(3) PNL board ..........................................................................................................16
(4) LCD unit ............................................................................................................17
4.3 Replacement of Major Parts in Scanner unit .................................................................18
4.4 Synchronous Belt and Motor .........................................................................................19
4.5 Magnetron......................................................................................................................20
4.6 MIC................................................................................................................................20
4.7 Program updating ..........................................................................................................21
Chapter 5 Troubleshooting
5.1 Error Messages ..............................................................................................................24
5.2 Troubleshooting Matrix table ..................................................................................................... 24
5.3 Self Test .......................................................................................................................................... 26
Contents
5.3.1 Display unit.....................................................................................................26
5.3.2 Scanner unit ....................................................................................................29
5.4 Test points on each board ..............................................................................................30
1) DU board (03P9320) ...........................................................................................30
2) MD board (03P9270) ..........................................................................................30
3) INT board (03P9322) ..........................................................................................31
4) STC waveform ....................................................................................................31
Exploded View ................................................................................. D-1
Electrical Parts List ......................................................................... E-1
Schematic Diagrams ....................................................................... S-1
Chapter 1 Circuit Description
1.1 General
The CPUs in the display and scanner units communicate each other via RS-422 interface. The
control data, such as Gain, STC and tuning data, is sent from the display unit to the scanner unit
in serial.
Radiator
Ship’s mains
Transceiver
Display unit
MD
MD
Board
IF
IF
IF
Board
INT
INT
Board
I/F
Video signal
BP
HD
BP/HD
H.C (H.C)
Communication
Trigger
DU
DU Board
Signal processor
& power supply
LCD
H.C
Ship’s mains (H.C)
PNL Board
Scanner unit
Fig.1-1 Simplified Block Diagram
The trigger pulse is generated on DU board in the display unit and sent to the modulator on MD
board in the scanner unit. The modulated signal triggers the magnetron and high frequency
pulses are transmitted from the radiator. The target echo received by the radiator is
frequency-converted by the MIC. 60 MHz IF signal is amplified in the scanner unit and then sent
to the display unit. DU board in the display unit processes video signal to show target echoes on
the LCD display.
Bearing pulse (BP) and heading signal (HD) are also delivered to the display unit from the
scanner unit.
1
1.2 Display unit
1.2 Display unit
TX trigger pulse is generated by gate array, U79 and sent to the scanner unit. The video signal
from the scanner unit is A/D converted and sampled by gate array, U78. Echoes in each sweep
are stored on the V-RAM via gate array, U79. Upon receiving the heading pulse, the stored data
are output to the LCD in four gradations, according to echo strength.
HD/BP
TX trigger
Video signal
Scanner unit
LCD
Navaid
DU Board
(03P9320)
PNL Board
03P9330
Ship’s mains
Power Supply
Fig.1-2 Block Diagram of Display Unit
2
1.2 Display unit
The display unit consists of PNL board (03P9330), DU board (03P9320) and LCD unit
(03S9461). Each board functions as below.
PNL Board (03P9330)
This board functions as a man-machine interface, equipped with keys, LEDs for
panel-illumination, and a buzzer.
DU Board (03P9320)
According to the range setting, gate array U79 generates TX trigger pulses in specified pulse
repetition rate. Reference oscillator output is divided by the data from the CPU to decide the
PRR.
The pulse repetition rates differs slightly from set to set to prevent the radar interference.
The video signal from the scanner unit inputs to the video circuit on the DU board.
The video circuit includes FTC circuit that rejects the reflecting signals from the rain and snow.
CPU switches on or off the FTC according to control panel setting.
The video signal is converted by the A/D converter into seven-level digital signal, and input to
the radar signal processing circuit in the gate array U78. The digital video signal is sampled in
U78 with the sampling clock corresponding to the range setting. Further, when the interference
rejecter is turned on, each video signal is correlated with the corresponding transmission to
eliminate or reduce the radar interference signals. The processed video signal by U78 is written
into VRAMs via U79 for indication.
The bearing signal and heading signal are input to serial-to-parallel converter and then applied to
G/A U79 individually. Heading error obtained at heading alignment in installation menu is stored
in EEPROM U28, and used by CPU to calculate the correct antenna direction. TX time delay
data is also stored in EEPROM U28.
Unlike R/θ coordinate sweep, LCD display employs X-Y coordinate method similar to so called
TV- sweep method. U79 converts the R/θ video signal to X-Y coordinates using formulas, RSIN
θ and RCOS θ. The coordinate-converted video signal is written and maintained onto VRAM for
trail indication.
The data writing/reading onto/from the VRAM is carried out by U79 in time sharing. U79
retrieves data from VRAM to display it on the LCD display.
Scanner unit control data is converted to serial data by RS-422 interface, U27 and sent to the
scanner unit through a balanced RS-422 line. The control data includes transmission on/off, TX
pulsewidth selection, Gain and STC signals.
The data from the navigational aid is received through photo-couplers U10 and U11.
3
1.2 Display unit
Fig.1-3 Block Diagram of DU Board (03P9320)
4
1.2 Display unit
The unit operates on universal voltage ranging from 10.8 V to 31.2 V DC. This range covers the
voltage requirement for 12 V/24 V ship’s mains 10 % lower and 30 % higher. The ship’s mains is
supplied through a noise filter to the pulsewidth-controlled DC-DC converter which generates
the stable voltages; +5 V, +12 V, +8 V and –24 V. The ship’s mains is also supplied to the
scanner unit, bypassing the power supply circuit in the display unit. +5 V is mainly used for the
digital circuits, +12 V for the video circuits, +8 V for the backlight, and –24 V for the LCD
display. The DC-AC inverter consisting of Q33, Q34 and T1 generates 210 V AC for the
backlighting of the LCD display.
If the power supply is connected to the radar in reverse polarity, the reverse-polarity protector
activates so that the fuse is blown off to prevent the damage to the unit.
The power supply circuit contains low- and high-input voltage protector.
5
1.3 Scanner unit
1.3 Scanner unit
In the scanner unit, the TX trigger from the display unit is modulated to use it for triggering the
magnetron. The received echo is fed to the MIC and down-converted to 60 MHz IF signal.
Auto-gain and auto-STC circuits are not in the scanner unit, but in the display unit.
IF Board
INT Board
Video
Tune
Interface
Display
unit
COM
IF AMP
Auto Gain
Auto STC
Auto Tune
Communication
Motor Drive
Tune
Circulator
Trigger
Modulator
Ship’s
mains Power Supply
MD Board
Fig.1-4 Block Diagram of Scanner Unit
6
Magnetron
Antenna
1.3 Scanner unit
INT board (03P9322)
INT board mainly consists of CPU U4 that includes the RAM, ROM and analog ports, RS-422
interface U5, a motor drive circuit and a gain control signal generator.
CPU U4 receives control panel settings on the display unit through the RS422 interface U5. The
D/A converter U2 converts Gain, A/C RAIN, and tuning control signals from digital to analog.
A/C SEA and A/C RAIN circuit consisting of Q1, Q2 and Q3 outputs GAIN CONT signal to IF
board.
The CPU U4 controls the stepping motor drive circuit, Q4 to Q7 to keep the antenna rotation
speed constant.
The heading signal (HD) from the lead switch is mixed with the bearing pulse (BP) by Q9 to
Q11 and sent to the display unit.
The ship’s main is supplied to the power supply circuit on the MD board via INT board.
MD board generates +5 V, +12 V and -6 V for the use on INT board.
Lead
Switch
Interface
Display
unit
IF
Board
Mixer
Serial Conv.
Waveform
generator
Serial
Buffer
Q4, Q5
Q6, Q7
Reset
Step
motor
Ref. Osc.
Bandwidth switch
Video signal
Pulsewidth signal
Trigger
Buffer
MD
Board
Ship’s mains Filter
Fig.1-5 Block Diagram of INT Board (03P9322)
7
1.3 Scanner unit
IF Amplifier board (03P9321)
The 60 MHz IF amplifier consists of Q1, Q2, U1 and U2, and provides the bandwidth of 7 MHz.
The tuning level detector, U3 to U8, detects the main bangs to indicate the tuning level.
GAIN CONT signal
(From INT Board)
9V
VR2
Video
signal
output
Video
amplifier
U2
Third IF AMP
Video detector
U1
60 MHz IF
LC filter
U1
Second
IF AMP
60 MHz IF
LC filter
Q1
First
IF AMP
Tuning level
detector
U3 to U8
TUNE GATE IN
TUNE IND OUT
Fig.1-6 Block Diagram of IF AMP Board (03P9321)
MIC (RU-9458)
The circulator in the module switches between the transmitting and receiving microwave circuits
so that the transmitting radio energy is efficiently transmitted to the antenna without leaking to
the receiver side and the receiving radar signal from the antenna is sent with efficiency to the
receiver without leaking to the transmitter side.
The receiver circuit consists of diode limiter, balanced mixer and FET oscillator. The diode
limiter protects the balanced mixer from the excessive input power. The mixer converts the input
microwave signal to the 60 MHz IF signal. The oscillator is voltage-controlled and outputs the
signal to the mixer.
MD board (03P9270)
The MD board consists of a power supply circuit and a modulator.
There are two DC-DC converters in the power supply circuit: one generates –6 V, +5 V, and +12
V and the other magnetron heater voltage and TX HV. In the DC-DC converter, drivers Q803
and Q832 are driven by PWM controllers, U801 and U805 respectively.
The magnetron current, –6 V, +5 V, +12 V, +8 V (magnetron heater voltage), and TXHV can be
measured at the test point TP804.
The modulator in TX circuit receives the transmitting pulsewidth selection signals, PL-A and
PL-B, from INT board, and the trigger signal from the display unit. One-shot multivibrator U851
generates the transmitting trigger pulse of which the pulsewidth depends on range setting.
VR851 and VR852 adjust the output power of the magnetron. The pulse is boosted up by T851
and applied to the magnetron.
8
1.3 Scanner unit
Trans Reset
Fig.1-7 Block Diagram of MD board (03P9270)
9
Chapter 2 Location of Parts
2.1 Display unit
TP6 (VIDEO) J1351
DJ1
J1352
TP9 (PWM)
TP12
(BUSCLK)
TP7
(VIDEO OUT)
TP15 (RST)
TP10 (PWL)
TP17 (INV)
J3
TP5
TP8 (PWS)
TP3 (+9V)
TP1 (Q6D)
TP13 (BP)
TP11 (TRIG)
TP14 (HD)
J7 (RS 232C)
TP2 (+5V)
VR1
J6
TP4
(GND)
TP16
(PWR
OFF)
(EXT BUZZ)
Fig.2-1 DU board (03P9320)
10
2.2 Scanner unit
2.2 Scanner unit
TP4
TP1
TP2
J803
TP5
TP3
J805
J802
J801
J804
Fig.2-2 INT board (03P9322)
J3
VR2
J1
Fig.2-3 IF board (03P9321)
11
J2
2.2 Scanner unit
TP801 VR852
TP807
TP808
TP814
TP803
TP806
TP802 (COLD)
VR801
TP805
TP812
VR851
TP811
Fig.2-4 MD board (03P9270)
12
Chapter 3 Adjustment
DANGER- High voltage
The display unit contains 1 kVAC for LCD backlighting and
the scanner unit 300 VDC for TX.
3.1 Display unit
+5 V is adjusted by VR1 on DU board. See Fig.3-1 for the location of parts.
Table 3-1 Test points of Display unit
Item
+5 V
+12 V
-22 V
-6 V
Setting
TX (8 NM)
ST-BY
ST-BY
ST-BY
Test point
TP4 (+), TP5 (-)
J1#7 (+), J1#5 (-)
J1#10 (+), J1#5 (-)
J1#9 (+), J1#5 (-)
Ratings
4.95 to 5.05 Vdc
11.2 to 12.4 Vdc
-22.9 to -20.7 Vdc
-6.0 to -5.0 Vdc
Adjuster
VR1
DU Board
(03P9320)
J8 J1
TP2
Fig.3-1 Location of J1 and J8 on DU board
3.2 Scanner unit
Adjusters on MD board in the scanner unit are adjusted as below.
Table 3-2 Test points of Scanner unit
Item
+12 V
+8 V
heater volt.
TX-HV
(divided)
Magnetron
current
Setting
ST-BY
ST-BY
ST-BY
TX
Test point
TP804#3 (+)
TP804#4 (-)
TP804#6 (+)
TP804#4 (-)
TP804#7 (+)
TP804#4 (-)
Rating
11.9 to 12.1 Vdc
Adjuster
VR801
7.8 to 8.2 Vdc
8.5 to 9.35 V
Long
Short
TP804#5 (+)
TP804#4 (-)
13
3.05 to 3.15 V
3.35 to 3.45 V
VR851
VR852
Chapter 4 Maintenance
This unit is designed for board level maintenance. Thus, component replacement is not
recommended.
4.1 Removing display unit cover
To remove the display unit cover:
1. Remove three connector nuts on the display unit cover.
2. Remove four screws fixing the display unit cover to the front panel.
3. Remove the display unit cover.
4. When replacing the cover, confirm that the connector packing is seated in position.
Round side
M4 X 10
S.W
F.W
Do not remove
this screw.
3 X 12 (4 pcs.)
Connector packing
Fig.4-1 Detaching display unit cover
14
4.2 Replacement of Major Parts in Display unit
4.2 Replacement of Major Parts in Display unit
(1) DU board
See Fig.4-2.
3 X 8 (4 pcs.)
DU board (03P9320)
Fig.4-2 DU Board
(2) Front panel
See Fig.4-3.
Chassis
03-160-1005
Fig.4-3 Front panel
15
4.2 Replacement of Major Parts in Display unit
(3) PNL board
See Fig.4-4.
Filter
02-139-1004
3X8
PNL board (03P9330)
Rubber key
02-139-1003
Fig.4-4 PNL board
16
4.2 Replacement of Major Parts in Display unit
(4) LCD unit
See Fig.4-5.
3 X 8 (4 pcs.)
Fig.4-5 LCD unit
17
4.3 Replacement of Major Parts in Scanner unit
4.3 Replacement of Major Parts in Scanner unit
Fig.4-6 shows screws which fix boards to the chassis.
M3 X 8 (4Pcs.)
IF board (03P9321)
M4 X 20
Heat sink plate
03-146-3305
M3 X 8 (6 pcs.)
M3 X 8 (4 pcs.)
MD board (03P9270A)
INT board
(03P9322)
Heat sink sheet
03-146-3309
Fig.4-6 Boards in Scanner unit
18
4.4 Synchronous Belt and Motor
4.4 Synchronous Belt and Motor
To remove the belt and motor:
1. Unscrew four M3x8 screws marked by *.
2. Remove the radiator assembly.
3. Replace the belt (or motor) with new one. No belt tension adjustment is necessary.
4. Reassemble the unit by reversing above steps.
M3 X 6 SCM3
Radiator Assy.
Driving Pulley
03-146-3304
* M3 X 8 4pcs.
M3 X 8 2pcs.
B801 Motor
RM-9572
Fix at the
same time.
Connector
Connector
Driver Pulley
STS Belt
(000-808-743)
Bearing
Retainer
Two dowels
Use this hole to loosen
the screw fixing the
nearing retainer.
dowels
B
View from B
Belt
Driving pulley
Driver pulley
Fig.4-7
19
Driver pulley, top view
4.5 Magnetron
4.5 Magnetron
When handling the magnetron, taking the followings into account not to damage the magnetron
physically and electrically.
1) Use a non-magnetic screw driver to dismount and mount the magnetron.
2) Keep the magnetron 25 mm away from the metals.
3) Never pull the magnetron lead wires.
M4 X 20
Remove MIC shorting plug.
Dowels
U801
Dowels
S-RX50
M4 X 10 4pcs.
V801 Magnetron
E3588
Fig.4-8
4.6 MIC
See Fig.4-8. Remove the MIC shorting plug before use.
20
4.7 Program updating
4.7 Program updating
The program is upgraded by connecting a PC directly or through a RS232C-RS422 converter.
1. Direct connection of PC
1) Connection
The cover of the display unit is removed for the connection of the PC.
PC
M O D EL1623
Du Board (03P9320)
J 7
SER IAL PO R T
R S232C R X D
1
3
TX R S232C
R S232C TX D
2
2
R X R S 232C
GND
3
5
GND
NC
4
4
6
*XH4P connector
7
8
*D-SUB9P connector
Fig.4-9
2) Procedure
1. Load the program file onto your PC.
2. Open the program file and then click the batch file, up1623.bat.
3. The message “TARGET POWER ON” appears.
4. Turn on the radar. The messages, “Now Erasing” and “000 percent completed” appear
on the PC. When the message “Finish Version up” appears, the upgradation is
completed. The system restarts automatically. Fig.4-10 shows the change of the display
on the PC.
5. Disconnect the cable and close the cover of the display unit.
21
4.7 Program updating
load1623.bin
ipl1623-XXXX.bin
up1623.bat
uppg.exe
XXXX:Ver.No.
Run “up1623.bat”.
uppg load1623.bin · · ·
Program upload utility Version 7.05
Copyright(c) FURUNO ELECTRIC · · ·
·
·
·
Port no. = 1
New wait time:150ms
TARGET POWER ON.
Turn on the radar.
uppg load1623.bin · · ·
Program upload utility Version 7.05
Copyright(c) FURUNO ELECTRIC · · ·
·
·
·
Port no. = 1
New wait time:150ms
TARGET POWER ON.
Execute STEP 1
Execute STEP 2
xxxxxxxx Byte transfer
bps:xxxxxxxx
Now Erasing
xxx percent completed
Fig.4-10
22
4.7 Program updating
2. Using RS232C-RS422 converter
1) Connection
The PC is connected to the NMEA port on the rear panel of the display unit. See Fig.4-11.
RS232C-RS422 converter
M O D EL1623
J1352
(N M EA)
R S422 PO R T
R S422 TX _H
1
R S422 R X _H
R S422 TX _C
2
R S422 R X _C
R S422 R X _H
3
R S422 TX _H
R S422 R X _C
4
R S422 TX _C
+12V
5
GND
6
SHIELD
7
R S232C PO R T
SERIAL PO RT
PC
Fig.4-11
2) Procedure
See the procedure in the section “Direct connection of PC”.
To check program number;
1. Turn on the unit while pressing the MENU key.
2. The installation menu appears. Select “TEST” and press the right arrow key.
3. The program number is displayed in the test display. (0359183-0X.0X)
4. Turn off the unit.
23
Chapter 5 Troubleshooting
5.1 Error Messages
The following messages appear to call the operator’s attention to missing heading or bearing
pulses. Check the antenna cable for damage or discontinuity when these messages appear.
Table 5-1 Error Messages
Message
NO HEADING PULSE
NO BEARING PULSE
Meaning
Heading pulse is not applied to the CPU on the DU board. The heading
mark disappears.
Bearing pulse is not applied to the CPU on the DU board. Radar
automatically changes from TX to ST-BY mode.
5.2 Troubleshooting Matrix table
The troubleshooting matrix table on the next page helps the service technician to quickly identify
defective pcb or block. To use the table, locate the symptom in one of the three columns of the
table. Possibly defective circuits and their likelihood of defectiveness, identified by a circle, star
or triangle, corresponding to 70 to 80 %, approximately 20 % and a few percent respectively, are
listed in each column. Numeral inside circle shows degree of possibility; the smaller the number,
the higher the possibility.
Note: Before consulting the table, check the ship’s mains (input voltage at J1351#1(+) and #2(-)
of the display unit: 10.8 to 31.2 VDC) and the power fuse.
24
25
Fuse (5A)
Motor and belt
MIC
Magnetron
INT board (03P9322)
MD board (03P9270)
IF board (03P9321)
LCD display (DG52Y-5MC)
PNL board (03P9330)
DU board (03P9320)
Check point
Symptom
1
2
1
!
1
2
✩
1
2
3
1) Power cannot be supplied.
2) Power is supplied but nothing
appears on LCD.
3) Scanner does not rotate.
1
4
2
1
✩
5
1
✩
!
6
4) Marks and legends do not appear.
5) Marks and legends appear, but no
noise nor echo.
6) Marks, legends, and noise appear but
no echo.
1
7
2
1
!
✩
!
8
✩
1
9
7) Incorrect target bearing.
8) Poor sensitivity.
9) Keyboard is pressed but no response.
5.2 Troubleshooting Matrix table
5.3 Self Test
5.3 Self Test
The self test is performed by following steps below.
5.3.1 Display unit
To test the display unit:
1. Turn on the power while pressing and holding down the [MENU/ESC] key to show the
Installation menu.
INSTALLATION MENU
SIMULATION * ► OFF
TEST …
LCD PATTERN …
MEMORY CLEAR
NMEA PORT
: IN/OUT
NMEA OUTPUT : OFF
GPS WAAS
: OFF
GOTO RADAR SETUP …
Fig.5-1 Installation menu
2. Press ▼ to choose test.
3. Press ► to start the test. In a few moments the results will appear. While the test result is
shown, the brightness of the panel is changed to check the lighting circuit.
Key test
Temperature inside the unit
Fig.5-2 Test result
ROM: Sum check of the program ROM. The result is shown by “OK” or “NG”.
RAM: RD/WR check of DRAM
NMEA: Input and output check of NMEA port. NMEA port test is made by putting
jumper wires between J1352#1 and #3, and #2 and #4.
26
5.3 Self Test
NMEA Test result
OK: All input is good.
--: All input is no good.
01: NMEA1 (input from J1352#3 and #4) is no good or jumper wires are not
connected.
02: NMEA2 (input from J1352#1 and #2) is no good.
03: The scanner communication with scanner unit is no good.
12: NMEA1 and NMEA 2 are no good.
13: NMEA1 and the communication with the scanner unit are no good.
23: NMEA2 and the communication with the scanner unit are no good.
Panel test: The pressed key is shown by black. To finish the test, press [MENU] three times.
The buzzer sounds at the end of the test.
GPS test: When the black box GPS (GP-310B etc.) is connected, the program number and the
status of the GPS are shown. “OK” appears when the status is good and no
indication when no good.
27
5.3 Self Test
LCD test
1. Press ▼ to choose LCD PATTERN test.
2. Press ► to start the test. The entire screen is black.
3. Press [MENU/ESC] and the screen turns white.
4. Press [MENU/ESC] again and the screen shows a four-tone display.
5. To return to the installation menu. Press [MENU/ESC] again.
Fig.5-3
Clearing Back up memory
1. Select “Memory clear” in the Installation menu and press ►.
2. Select “Yes” to clear. The back up data is cleared when the system is turned on next time.
The following describes about other items in the installation menu.
▪ NMEA port setting: Sets NMEA port to “Input/Output” or “Input/Input”.
▪ NMEA output: Decides whether NMEA input is output from “output” port or not.
▪ GPS WAAS: Valid only when GP-320B is connected. Normally sets to “WAAS-02”.
▪ Go to radar setup: Entering into the scanner test menu.
28
5.3 Self Test
5.3.2 Scanner unit
Follow the procedure below to test the scanner unit.
1. Press [MENU/ESC] to open the fourth page of the user menu.
▲
RADAR SETUP
SCANNER TEST …
▲
►
▼
(4/4)
[MENU/ESC]: Exit.
Fig.5-4 4/4 of user menu
2. Select “Scanner test” and press ►. The test starts and the result is displayed.
ANTENNA STATUS
HEADING
BEARING
: OK (xx)
: OK
: OK
(24.0 rpm)*
TUNE:
TOTAL ON TIME
TOTAL TX TIME
: 00000 h
: 00000h
INPUT NMEA
Sentences being received RMA RMB RMC BWC GLL GGA
are in reversed video.
MTW VTG VHW XTE VBW DPT
DBK DBS DBT HDT HDG HDM
BWR GLC GTD MWV ZDA
Status code
8 bit data is displayed by
hexadecimal number.
When all tests are okay,
8bit data is 11110011 and
the indication is (cf).
Bit 0: Power –on flag (LSB)
1: Tune voltage check
2: Gain voltage check
3: Heading signal
4: Not used (0)
5: Not used (0)
6: RAM check
7: Trigger signal (MSB)
(0: Abnormal; 1: Normal)
[MENU/ESC]: Exit.
* Long range = about 24.0 rpm
Medium range = about 31.0 rpm
Short range = about 41.0 rpm
Fig.5-5 Scanner test result
Note that ANTENNA STATUS is always NG (0) at the first test. Carry out scanner test
again for correct reading.
ANTENNA STATUS is only the result of power-on flag test.
29
5.4 Test points on each board
5.4 Test points on each board
1) DU board (03P9320)
Test point
TP1 (TP4)
TP2 (TP4)
TP3 (TP4)
TP4
TP5
TP6
TP7
TP8
TP9
TP10
Check Item
Q6-D
+5 V
+9 V
GND
PCVIDEO
VIDEO OUT
PW-S
PW-M
PW-L
TP11
TRIG
TP12
TP13
TP14
TP15
TP16
BUSCLK
BP
HD
RST
PWR OFF
TP17
INV
Ratings
21.7 to 29.4 us
4.8 to 5.2 Vdc
8.7 to 9.9 Vdc
Remarks
Switching Waveform
Adjuster: VR1
U9-#5
Reference Voltage (Primary)
Waveform 6
Waveform 6
SP MP LP
PW-S 0
1
1
PW-M 1
0
1
PA-L
1
1
0
36.85 to 40.85 kHz
V=9.0 to 12.0 V, T=6.0 to 10.0 us
8.1725 to 10.7125 kHz
V=4.0 to 5.2 V, T=5.5 to 6.5 ms
V=4.0 to 5.2 V, T=2.5 to 2.9 S
0V
0V
V = 4.2 to 5.3 Vp-p
T = 12.7 to 14.1 µS
4.8 V to 5.2 Vdc when turning on
4.8 V to 5.2 Vdc when turning off
Supply voltage for back light
2) MD board (03P9270)
Test point
TP801/TP802
TP803/TP802
TP804-#1/
TP804-#4
TP804-#2/
TP804-#4
TP804-#3/
TP804-#4
TP804-#5/
TP804-#4
Check Item
+9 V
VD1
Ratings
8.7 to 9.9 Vdc
34 to 46 kHz
Remarks
-6 V
-6.2 to -5.8 Vdc
+5 V
4.75 to 5.25 Vdc
+12 V
11.9 to 12.1 Vdc
Adjuster: VR801
Magnetron
Current
3.05 to 3.15 V
3.35 to 3.45 V
TX long, Adjuster: VR851
TX short, Adjuster: VR852
TP804-#6/
TP804-#4
TP804-#7/
TP804-#4
TP805/TP806
TP807
TP808
TP811
TP812
TP813
TP814
+8 V
7.8 to 8.2 Vdc
ST-BY/TX
8.5 to 9.35 Vdc (8.1 to 9.1 Vdc)
+12 V
GATE2
VD2
TRIG
GND
TX. PW.
GATE1
11.9 to 12.1 Vdc
Waveform 2
Waveform 3
Waveform 1
Same wave as VD2
ST-BY (TX, 6 nm)
Gate signal of switching FET
Not cold line of Ship’s main
Pulse transformer drive signal
Gate signal of switching FET
Waveform 4
Waveform 5
30
5.4 Test points on each board
3) INT board (03P9322)
Test point
TP1
TP2
TP3
TP4
TP5
Check Item
A/C RAIN
A/C SEA
CNTR 1
GAIN
GAIN CONT
Ratings
3.5 to 5.5 Vdc
0 to 4.5 Vdc
Remarks
Not used
5.3 to 8.5 Vdc
Same wave as STC
4) STC waveform
Condition; TX, STC voltage (J809#9) adjusted to 3.5 ± 0.1 V manually.
Test point; Between R46 and R47.
Ratings; V1=3.5 to 3.9 V, V2=1.5 to 1.9 V, V3=0.5 to 0.7 V, T1=50 to 90 us
Fig.5-6 STC waveform
31
5.4 Test points on each board
TP811 (TRIG.)
Vp-p=10 V
PW=8.0 µS
@TX-LONG
Setting on oscilloscope
2.00 V, 10.0 µs
Waveform 1
TP807 (GATE2)
Vp-p=10 V
f=38 kHz
@ power supply: 24 V
Setting on oscilloscope
2.00V, 10.0µs
Waveform 2
TP808 (VD2)
Vp-p=25 V
f=38 kHz
@ power supply: 24 V
Setting on oscilloscope
5.00 V, 10.0 µs
Waveform 3
32
5.4 Test points on each board
TP813 (TX.PW.)
Vp-p=10 V
PW=1.0 µS
@TX-LONG
Setting on oscilloscope
2.00 V, 1.00 µs
Waveform 4
TP814 (GATE1)
Vp-p=8 V
f=40 kHz
@ power supply: 24 V
Setting on oscilloscope
2.00 V, 10.0 µs
Waveform 5
03P9269
TP602 (ECHO)
Echo appears after main bang
1 to 3 V
Setting on oscilloscope
1.00 V, 200 ns
Waveform 6
33
ﾊﾝｶﾞｰ組品
HANGERASSY.
(000-790-409)
ﾊｰﾄﾞｶﾊﾞｰ
HARDCOVER
03-139-1015
(100-298-434)
MODEL 1623
ﾉﾌﾞ
KNOB
02-139-1032
(100-298-472)
ﾊﾟﾈﾙ組品
PANELASSY.
(000-790-443)
ﾊﾟﾈﾙﾊﾟｯｷﾝ
PANELGASKET
02-039-1007
(100-298-403)
製 図
2002.11.19
DRAWN
審 査
2002.11.19
CHECKED
APPROVED
承 認
2002.11.19
ﾗﾊﾞｰｷｰ
RUBBERKEY
02-139-1003
(100-298-373)
ﾊﾟﾈﾙ基板
PNLPCB
03P9330
(000-790-442)
DWG. NO.
RDP-141
TITLE
LCD
EW50136FDWR
(000-145-512)
C3510-E01-A
指示部
DISPLAY UNIT
DU基板
DUPCB
03P9320
(000-790-441)
D-1
桒村 高橋 三好
D-2
F
U
R U
N
ﾄﾞｰﾑ上部組品
DOME(UPPER)ASSY.
(008-440-720)
±ﾅﾍﾞｾﾑｽB
SCREW
M4X10
(000-881-446)
ﾏｸﾞﾈﾄﾛﾝ
MAGNETRON
E3588
取付台組品 (RF部)
RFMODULE
RTR-074
(008-441390)
ﾓ
ｰﾀｰ組品
M
OTORASSY.
R
M-9572
(
008-442-320)
STSベルト
STSBELT
40S2M266UG
(000-808-743)
PW
M10
ﾄﾞｰﾑ下部組品
DOME(UNDER)ASS
Y.
(008-441-280)
SW
M10
IN
MAR
AR
RAD
-六角ﾎﾞﾙﾄ
HEX.BOLT
M10X20
(000-801-861)
承 認
2002.11.25
CHECKED
審 査
2002.11.25
DRAWN
MODEL 1623
製 図
2002.11.25
桒村 高橋 三好
APPROVED
TITLE
RSB-0093-074
DWG. NO.
空中線部 1/2
SCANNER UNIT 1/2
C3510-E02-A
D-3
ﾛｯｷﾝｸﾞﾜｲﾔｰｻﾄﾞﾙ
LOCKINGWIRESADDLE
LWSM-0306
(000-809-275)
±ﾅﾍﾞｾﾑｽA
SCREW
M4×8
(000-881-144)
d,
に
ove rew
先端 ある
rem sc to
is to er
ープ 側に 。
er ext cov
、ロ ー内 さい
cov en he
合は カバ くだ
he hol et
す場 プを けて
nt he sid
Wheseteinit. り外 ナッ に掛
u ol g を取 ス 穴
h an ー いる の
h バ て ジ横
カ い ン
付 ラ
フ
03
-1
60
-1
04
10
SN
ス AP
ナ
ッ
プ
CO
カ VE
バ R
ー
ｼｰﾙﾄﾞ板(L)
SHEILDBOARD(L)
03-160-1025
(100-301-760)
-V
Vt OP
GN
D
GN
D
P
GN
IF D
+V
O
IFBOARD
03P9321
(008-530-060)
INTBOARD
03P9322
(008-530-080)
ﾊｰﾈｽﾘﾌﾀｰ
HARNESSLIFTER
HL-18-0
(000-808-214)
ﾌｧﾝﾓｰﾀ
FANMOTOR
MMF-04D12DL-R0H
±ﾅﾍﾞｾﾑｽA
SCREW
M4×20
(000-881-150) ±ﾅﾍﾞｾﾑｽA
SCREW
M4×8
(000-881-144)
XﾊﾞﾝﾄﾞMIC
S-RX50C
±ﾅﾍﾞｾﾑｽA
SCREW
M4×15
(000-881-147)
ｼｰﾙﾄﾞ板(R)
SHEILDBOARD(R)
03-160-1024
(100-302-430)
±ﾅﾍﾞｾﾑｽB
SCREW
M3×8
(000-881-404)
±ﾅﾍﾞｾﾑｽB
SCREW
SWﾄﾘﾂｹｲﾀ
M4×20
SWFIXINGPLATE (000-881-451)
03-146-3306
(100-275-052)
±ﾅﾍﾞｾﾑｽB
SCREW
M3×12
(000-881-406)
ﾎｳﾈﾂﾊﾞﾝ
HEATSINK
03-146-3305
(100-275-042)
FETｵｻｴｺﾞﾑ(3)
FETFIXINGRUBBER
03-160-1044
±ﾅﾍﾞｾﾑｽB
(100-302-841)
SCREW
M3×8
(000-881-404)
MDBOARD
03P9270A
(008-530-070)
±ﾅﾍﾞｾﾑｽB
SCREW
M3×8
(000-881-404)
±ﾅﾍﾞｾﾑｽA
SCREW
M4×10
(000-881-145)
ﾏｸﾞﾈﾄﾛﾝ
MAGNETRON
E3588
ﾎｰﾈﾂｼｰﾄ
HEATSHEET
03-146-3309
(100-277-130)
ｸﾗﾝﾌﾟ
CLAMP
MN-2
(000-133-980)
±ﾅﾍ
ﾞｾﾑｽB
SCRE
W
M4×10
(000
-881-446) CHECKED
審 査
2002.11.19
DRAWN
MODEL 1623
製 図
2002.11.19
高橋 三好
承 認
2002.11.19
桒村
APPROVED
TITLE
RSB-0093-074
DWG. NO.
空中線部 2/2
SCANNER UNIT 2/2
C3510-E03-A
FURUNO
Model
MODEL 1623
Unit
指示部
Ref.Dwg.
DISPLAY UNIT
C3510-K02-B
電気部品表
ELECTRICAL PARTS LIST
2002年 11月
RDP-141
Page
E-1
Blk.No.
SYMBOL
TYPE
CODE No.
REMARKS
SHIPPABLE
ASSEMBLY
回路記号
型式
ｺｰﾄﾞ番号
備考
出荷単位組品
PRINTED CIRCUIT BOARD
プリント基板
B1
03P9320, DU
000-790-441
B2
03P9330, PNL
000-790-442
LCD
LCD
EW50136FDWR
000-145-512
PANEL ASSEMBLY
パネル組品
MODEL 1623
000-790-443
B3
02S5146, LCD MODULE
FURUNO
Model
MODEL 1623
Unit
空中線部
Ref.Dwg.
SCANNER UNIT
C3510-K01-A
電気部品表
ELECTRICAL PARTS LIST
2002年 11月
RSB-0093-074
Page
E-2
Blk.No.
SYMBOL
TYPE
CODE No.
REMARKS
SHIPPABLE
ASSEMBLY
回路記号
型式
ｺｰﾄﾞ番号
備考
出荷単位組品
PRINTED CIRCUIT BOARD
プリント基板
B2
03P9321, IF
008-530-060
B3
03P9270A, MD
008-530-070
B4
03P9322, INT
008-530-080
B1
B801
W801
U801
V801
ASSEMBLY
組品
RTR-074
008-441-390
MOTOR ASSEMBLY
モーター組品
RM-9572
008-442-320
SWITCH
スイッチ
NRS-101-56
000-117-630
MIC
MIC
S-RX50C
000-146-342
MAGNETRON
マグネトロン
E3588
000-142-270
FAN MOTOR
ファンモーター
MMF-04D12DL-R0H
000-146-602
IF/MD/INT/ANTENNA, etc.