SER VICE MANUAL

AMPLIFIER
STEREO
C 325BEE SERVICE MANUAL
NAD
C 325BEE
STEREO
1
AMPLIFIER
TABLE OF CONTENTS
DESCRIPTION
PAGE
SERVICE CAUTION………………………………………………………… 3-4
REAR PANEL/FRONT PANEL VIEW………………………………………...5
SPECIFICATIONS………………………………………………………….6-7
WIRING DIAGRAM………………………………………………………………8
BLOCK DIAGRAM……………………………………………………. …….9-14
ALIGNMENT PROCEDURE……………………………………………..15
SCHEMATICS……………………………………………………………….16-19
PCB LAYOUT……………………………………………………………… 20-23
TROUBLE SHOOTING GUIDE…………………......................................24
ELECTRICAL PARTS LIST…………………………………………….25-34
EXPLODED VIEW……………………………………………………………..35
EXPLODED VIEW PARTS LIST……………………………………………...36
PROTECT IC CHANGE ..............……………………………………..……...37
2
PRODUCT SAFETY SERVICING GUIDELINES
CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN
ANY WAY. NEVER PERFORM CUSTOMIZED INSTALLATIONS
WITHOUT MANUFACTURER’S APPROVAL. UNAUTHORIZED
MODIFICATIONS WILL NOT ONLY VOID THE WARRANTY, BUT
MAY LEAD TO YOUR BEING LIABLE FOR ANY RESULTING
PROPERTY DAMAGE OR USER INJURY.
VOLTAGE MEASURE MUST NOT EXCEED 75 VOLTS R.M.S.
THIS CORRESPONDS TO 0.5 MILLIAMP AC ANY VALUE
EXCEEDING THIS LIMIT CONSTITUTES A POTENTIAL
SHOCK HAZARD AND MUST BE CORRECTED IMMEDIATELY.
SERVICE WORK SHOULD BE PERFORMED ONLY AFTER YOU
ARE THOROUGHLY FAMILIAR WITH ALL OF THE FOLLOWING
SAFETY CHECKS AND SERVICING GUIDELINES. TO DO
OTHERWISE, INCREASES THE RISK OF POTENTIAL HAZARDS
AND INJURY TO THE USER.
WHILE SERVICING, USE AN ISOLATION TRANSFORMER FOR
PROTECTION FROM AC LINE SHOCK.
SAFETY CHECKS
SUBJECT : GRAPHIC SYMBOLS
AFTER THE ORIGINAL SERVICE PROBLEM HAS BEEN
CORRECTED. A CHECK SHOULD BE MADE OF THE
FOLLOWING.
THE LIGHTNING FLASH WITH ARROWHEAD SYMBOL, WITHIN AN
EQUILATERAL TRIANGLE, IS INTENDED TO ALERT THE USER TO THE
PRESENCE OF UNINSULATED “DANGEROUS VOLTAGE” WITHIN THE
PRODUCT’S ENCLOSURE THAT MAY BE OF SUFFICIENT MAGNITUDE TO
CONSTITUTE A RISK OF ELECTRIC SHOCK.
SUBJECT : FIRE & SHOCK HAZARD
1. BE SURE THAT ALL COMPONENTS ARE POSITIONED IN
SUCH A WAY AS TO AVOID POSSIBILITY OF ADJACENT
COMPONENT SHORTS. THIS IS ESPECIALLY IMPORTANT
ON THOSE MODULES WHICH ARE TRANSPORTED TO AND
FROM THE REPAIR SHOP.
2. NEVER RELEASE A REPAIR UNLESS ALL PROTECTIVE
DEVICES SUCH AS INSULATORS, BARRIERS, COVERS,
SHIELDS, STRAIN RELIEFS, POWER SUPPLY CORDS, AND
OTHER HARDWARE HAVE BEEN REINSTALLED PER
ORIGINAL DESIGN. BE SURE THAT THE SAFETY PURPOSE
OF THE POLARIZED LINE PLUG HAS NOT BEEN DEFEATED.
3. SOLDERING MUST BE INSPECTED TO DISCOVER POSSIBLE
COLD SOLDER JOINTS, SOLDER SPLASHES OR SHARP
SOLDER POINTS. BE CERTAIN TO REMOVE ALL LOOSE
FOREIGN PARTICLES.
4. CHECK FOR PHYSICAL EVIDENCE OF DAMAGE OR
DETERIORATION TO PARTS AND COMPONENTS. FOR
FRAYED LEADS, DAMAGED INSULATION (INCLUDING AC
CORD). AND REPLACE IF NECESSARY FOLLOW ORIGINAL
LAYOUT, LEAD LENGTH AND DRESS.
5. NO LEAD OR COMPONENT SHOULD TOUCH A RECEIVING
TUBE OR A RESISTOR RATED AT 1 WATT OR MORE. LEAD
TENSION AROUND PROTRUDING METAL SURFACES MUST
BE AVOIDED.
6. ALL CRITICAL COMPONENTS SUCH AS FUSES,
FLAMEPROOF RESISTORS, CAPACITORS, ETC. MUST BE
REPLACED WITH EXACT FACTORY TYPES, DO NOT USE
REPLACEMENT COMPONENTS OTHER THAN THOSE
SPECIFIED OR MAKE UNRECOMMENDED CIRCUIT
MODIFICATIONS.
7. AFTER RE-ASSEMBLY OF THE SET ALWAYS PERFORM AN
AC LEAKAGE TEST ON ALL EXPOSED METALLIC PARTS OF
THE CABINET, (THE CHANNEL SELECTOR KNOB, ANTENNA
TERMINALS. HANDLE AND SCREWS) TO BE SURE THE SET
IS SAFET TO OPERATE WITHOUT DANGER OF ELECTRICAL
SHOCK. DO NOT USE A LINE ISOLATION TRANSFORMER
DURING THIS TEST USE AN AC VOLTMETER, HAVING 5000
OHMS PER VOLT OR MORE SENSITIVITY, IN THE
FOLLOWING MANNER; CONNECT A 1500 OHM 10 WATT
RESISTOR, PARALLELED BY A .15 MFD, 150V AC TYPE
CAPACITOR BETWEEN A KNOWN GOOD EARTH GROUND
(WATER PIPE, CONDUIT, ETC.) AND THE EXPOSED
METALLIC PARTS, ONE AT A TIME.
MEASURE THE AC VOLTAGE ACROSS THE COMBINATION
OF 1500 OHM RESISTOR AND .15 MFD CAPACITOR.
REVERSE THE AC PLUG AND REPEAT AC VOLTAGE
MEASUREMENTS FOR EACH EXPOSED METALLIC PART.
THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS
INTENDED TO ALERT THE USER TO THE PRESENCE OF IMPORTANT
OPERATING AND MAINTENANCE (SERVICING) INSTRUCTIONS IN THE
LITERATURE ACCOMPANYING THE APPLIANCE.
SUBJECT : TIPS ON PROPER INSTALLATION
1. NEVER INSTALL ANY PRODUCT IN A CLOSED-IN RECESS,
CUBBYHOLE OR CLOSELY FITTING SHELF SPACE. OVER
OR CLOSE TO HEAT DUCT, OR IN THE PATH OF HEATED
AIR FLOW.
2. AVOID CONDITIONS OF HIGH HUMIDITY SUCH AS:
OUTDOOR PATIO INSTALLATIONS WHERE DEW IS A
FACTOR, NEAR STEAM RADIATORS WHERE STEAM
LEAKAGE IS A FACTOR, ETC.
3. AVOID PLACEMENT WHERE DRAPERIES MAY OBSTRUCT
REAR VENTING. THE CUSTOMER SHOULD ALSO AVOID THE
USE OF DECORATIVE SCARVES OR OTHER COVERINGS
WHICH MIGHT OBSTRUCT VENTILATION.
4. WALL AND SHELF MOUNTED INSTALLATIONS USING A
COMMERCAL MOUNTING KIT MUST FOLLOW THE FACTORY
APPROVED MOUNTING INSTRUCTIONS A PRODUCT
MOUNTED TO A SHELF OR PLATFORM MUST RETAIN ITS
ORIGINAL FEET (OR THE EQUIVALENT THICKNESS IN
SPACERS) TO PROVIDE ADEQUATE AIR FLOW ACROSS
THE BOTTOM, BOLTS OR SCREWS USED FOR FASTENERS
MUST NOT TOUCH ANY PARTS OR WIRING. PERFORM
LEAKAGE TEST ON CUSTOMIZED INSTALLATIONS.
5. CAUTION CUSTOMERS AGAINST THE MOUNTING OF A
PRODUCT ON SLOPING SHELF OR A TILTED POSITION,
UNLESS THE PRODUCT IS PROPERLY SECURED.
6. A PRODUCT ON A ROLL-ABOUT CART SHOULD BE STABLE
ON ITS MOUNTING TO THE CART. CAUTION THE
CUSTOMER ON THE HAZARDS OF TRYING TO ROLL A CART
WITH SMALL CASTERS ACROSS THRESHOLDS OR DEEP
PILE CARPETS.
7. CAUTION CUSTOMERS AGAINST THE USE OF A CART OR
STAND WHICH HAS NOT BEEN LISTED BY UNDERWRITERS
LABORATORIES, INC. FOR USE WITH THEIR SPECIFIC
MODEL OF TELEVISION RECEIVER OR GENERICALLY
APPROVED FOR USE WITH T.V.’S OF THE SAME OR
LARGER SCREEN SIZE.
8. CAUTION CUSTOMERS AGAINST THE USE OF EXTENSION
CORDS, EXPLAIN THAT A FOREST OF EXTENSIONS
SPROUTING FROM A SINGLE OUTLET CAN LEAD TO
DISASTROUS CONSEQUENCES TO HOME AND FAMILY.
3
SERVICING PRECAUTIONS
CAUTION : Before servicing the A/V Receiver covered by this
service data and its supplements and addends, read and follow the
SAFETY PRECAUTIONS. NOTE : if unforeseen circumstances
create conflict between the following servicing precautions and any
of the safety precautions in this publication, always follow the safety
precautions.
Remember Safety First:
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by
static electricity. Such components commonly are called
Electrostatically Sensitive (ES) Devices. Examples of typical Es
devices are integrated circuits and some field effect transistors and
semiconductor chip components.
The following techniques should be used to help reduce the
incidence of component damage caused by static electricity.
General Servicing Precautions
1. Always unplug the A/V Receiver AC power cord from the AC
power source before:
(1) Removing or reinstalling any component, circuit board,
module, or any other assembly.
(2) Disconnecting or reconnecting any internal electrical plug or
other electrical connection.
(3) Connecting a test substitute in parallel with an electrolytic
capacitor.
Caution : A wrong part substitution or incorrect polarity installation
of electrolytic capacitors may result in an explosion hazard.
1. Immediately before handling any semiconductor component or
semiconductor-equipped assembly, drain off any electrostatic
charge on your body by touching a known earth ground.
Alternatively, obtain and wear a commercially available
discharging wrist strap device, which should be removed for
potential shock reasons prior to applying power to the unit under
test.
2. After removing an electrical assembly equipped with ES devices,
place the assembly on a conductive surface such as aluminum
foil, to prevent electrostatic charge buildup or exposure of the
assembly.
2. Do not spray chemicals on or near this A/V Receiver or any of its
assemblies.
3. Use only a grounded-tip soldering iron to solder or unsolder ES
devices.
3. Unless specified otherwise in this service data, clean electrical
contacts by applying an appropriate contact cleaning solution to
the contacts with a pipe cleaner, cottontipped swab, or
comparable soft applicator.
Unless specified otherwise in this service data, lubrication of
contacts is not required.
4. Use only an antistatic solder removal device. Some solder
removal devices not classified a “anti-static” can generate
electrical charges sufficient to damage ES devices.
5. Do not use freonpropelled chemicals. These can generate
electrical charge sufficient to damage ES devices.
4. Do not defeat any plug/socket B+ voltage interlocks with which
instruments covered by this service manual might be equipped.
6. Do not remove a replacement ES device from its protective
package until immediately before you are ready to install it. (Most
replacement ES devices are packaged with leads electrically
shorted together by conductive foam, aluminum foil, or
comparable conductive material).
5. Do not apply AC power to this A/V Receiver and/or any of its
electrical assemblies unless all solid-state device heat sinks are
correctly installed.
6. Always connect test instrument ground lead to the appropriate
ground before connecting the test instrument positive lead. Always
remove the test instrument ground lead last.
7. lmmediately before removing the protective material from the
leads of a replacement ES device, touch the protective material to
the chassis or circuit assembly into which the device will be
installed.
Insulation Checking Procedure
Disconnect the attachment plug from the AC outlet and turn the
power on. Connect an insulation resistance meter(500V) to the
blades of the attachment plug. The insulation resistance between
each blade of the attachment plug and accessible conductive parts
(Note 1) should be more than 1M-ohm.
Note 1 : Accessible Conductive Parts including Metal panels, Input
terminals, Earphone jacks, etc.
Caution : Be sure no power is applied to the chassis or circuit, and
observe all other safety precautions.
8. Minimize bodily motions when handing unpackaged replacement
ES devices. (Normally harmless motion such as the brushing
together of your clothes fabric or the lifting of your foot from a
carpeted floor can generate static electricity sufficient to damage
an ES device.)
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SPECIFICATIONS
POWER AMPLIFIER SECTION
STEREO MODE
CONTINUOUS AVERAGE POWER
OUTPUT INTO 8 OHMS OR 4 OHMS
50 W (17 dBW)
(Min. power per channel, 20 Hz – 20 kHz,
with no more than rated distortion)
Rated Distortion
(THD 20 Hz – 20 kHz)
0.03%
Clipping power
(maximum continuous power per channel 4 and 8).
68 W
IHF dynamic headroom: at 8 ohms
at 4 ohms
IHF dynamic power
(maximum short term power per channel)
8 ohms:
4 ohms:
2 ohms:
+ 3.4 dB
+ 5.0 dB
110 W (20.4 dBW)
160 W (22.0 dBW)
210 W (23.2 dBW)
Damping factor
(ref. 8 ohms 1 kHz)
> 100
Input Impedance
R = 20 kohms
C = 1 nF
Input sensitivity (for rated output into 8 ohms)
630 mV
Voltage gain
29 dB
0.2 dB
Frequency response 20 Hz – 20 kHz
Signal / Noise ratio, A-weighted
100 dB ref. 1 W
117 dB ref. 50 W
THD + Noise
(Total Harmonic Distortion, 20 Hz – 20 kHz,
from 250 mW to rated output)
< 0.03%
SMPTE I.M.
(Intermodulation Distortion, 60 Hz + 7 kHz, 4:1,
from 250 mW to rated output)
< 0.01%
IHF I.M.
(CCIF IM Distortion, 19 + 20 kHz at rated output)
< 0.01%
Headphones Output Impedance
220 ohms
6
PREAMPLIFIER SECTION
LINE LEVEL INPUTS
(Disk, CD, Video, Auxiliary, Tuner, Tape 1,Tape 2)
Input impedance (R and C)
200 kohms + 320 pF
Input sensitivity (ref. rated power)
220 mV
Maximum input signal
6V
Signal / Noise ratio, A-weighted
(from CD Input to Speakers Output, Volume Setting
for 500mV in , 8ohms 1W out)
Signal to noise ratio preamp out, IHF “A” weighted
93.0 dB ref. 1W
Frequency response, 20 Hz – 20 kHz
< +/-0.1 dB (tone defeat on)
< +/-0.5 dB (tone defeat off)
< 0.01% at 5 V out
106 dB re 500mV
THD + Noise, SMPTE IM
LINE LEVEL OUTPUTS
Pre-amp output impedance
80 ohms
Tape output impedance
Source Z + 1kohms
Maximum output level
pre-amp out
Tape-out
:
:
> 12 V
> 10 V
CONTROLS
Treble
+/- 5 dB at 10 kHz
Bass
+/- 8 dB at 100 Hz
IR IN and OUT
Input Resistance
> 10 kohms
Input Voltage
Min 5 V
Output Resistance
< 30 ohms
TRIGGER Out
Output Current
50 mA
Output Voltage
12 V
DIMENSIONS AND WEIGHTS
Net Weight
Shipping Weight
DIMENSION (W×H×D)
6.5 kg ( 14.3 Ib)
8 kg ( 17.6 Ib)
7
435 × 100 × 290MM
WIRING DIAGRAM
MAIN BOARD
AC POWER PLUG
POWER SWITCH
AC OUTLET
CB45
CB35
CB47
CB31
T401(TRANSFORMER)
AMP-SMD-R BOARD
CB32
CB21
Q215
CZ11
CB34
P1-L
-46V WHITE
+46V RED
P2-L
Q214
AMP-SMD-L BOARD
CZ21
P5-GND
Q114
IN MODULE BOARD
CB33
CB11
01-32560-01
CB61
P4-R
+46V RED
-46V WHITE
P3-R
Q115
OUT MODULE BOARD
CB57
CB59
CB56
CB54
CB58
POWER BOARD
CZ72
8
S75 S74
S72
CZ71 CZ72_1
S7
7
S71 S73
S7
6
CB73
CZ73
CB74
KEY BOARD
CZ74
CZ75
STANDBY BOARD
CB53
CZ45
IR BOARD
Ipod SOCKET BOARD
CB52
HEADPHONE BOARD
CB51
CB61
CB55
01-32560-02
CB72
MCU
MCU
(1,2,3)
(4,5,6,7
11,12,13,14)
(1,3)
INPUT SELECTION
CIRCUIT (BY RELAY)
MP L
5
2
9
4
IC74
CD4094
VOL+
VOL-
RT33
VOLUME
CONTROL
VOLUME CONTROL
CIRCUIT (REMOTE)
IC 75
CD4094
MP R
DISC L
DISC R
CD L
01-32560-01
CD R
01-32560-02
TUNER L
TUNER R
TAPE1 IN L
TAPE1 IN R
RT32
TREBLE
RT34
BALANCE
SW31
PREAPM MODULE
AMP CIRCUIT
˄OUT˅
AUX L
AUX R
BASS
Q31
MUTE
PRE-OUT L
Q32
MUTE
PRE-OUT R
BLOCK DIAGRAM
Relay Switchs
VIDEO R
PREAPM MODULE
AMP CIRCUIT
˄IN˅
RT31
VIDEO L
TONE DEFEAT
SCR
CONTROL
CIRCUIT
MIRROR
CURRENT
SOURCE
CIRCUIT
TRIG
MUTE
CONTROL
CIRUIT
I-V
S41
TAPE1 OUT L
TAPE1 OUT R
TAPE2 IN L
TAPE2 IN R
ISC CIRCUIT
TAPE2 OUT L
PROTECTION
(IC43,TL082D)
TAPE2 OUT R
SOFT CLIPPING
CONTROL CIRCUIT
CIRCUIT
(IC44,UPC1237HA)
R467
POSISTOR
R439
POSISTOR
(80 DEGREE C) (90 DEGREE C)
POWER AMP
CIRCUIT L
MAIN IN R
RL12/2
F1AA012V
Speaker R
Speaker L
HEADPHONE
JK41
POWER AMP
CIRCUIT R
9
MAIN IN L
4
3
2
1
Vss
NC
NC
NC
5
6
7
8
SDA
SCL
NC
Vcc
IC71
24C01
+5V
27pF
C79
Y71
11.0592M
C710
27pF
IR OUT
CIRCUIT
+5V
IC72
3
21
IS1U60L
1
QS
QS
Q8
Q7
Q6
Q5
Q4
Q3
Q2
Q1
VEE
8
IC76
TCM810MEND
2
3
11
12
13
14
7
6
5
4
VCC
OE
CLK
D
STR
16
15
+5V
3
2
1
+5V
P3.7
GND
(AIN0)P1.0 P3.5
(AIN1)P1.1 P3.4
P1.2 P3.3(INT1)
P1.2 P3.2(INTO)
P1.4
XTAL1
P1.5
XTAL2
P1.6 P3.1(TXD)
P1.7 P3.0(RXD)
VCC RST/VPP
10
9
8
7
6
5
4
3
2
1
TO VOL CONTROL CIRCUIT
4094
IC73
AT89C4051
IC74
IP
C
TA1
DI
TU
TA2
AU
VI
11
12
13
14
7
6
5
4
QS
QS
Q8
Q7
Q6
Q5
Q4
Q3
Q2
Q1
VEE
VCC
OE
CLK
D
STR
8
11
12
13
14
15
16
17
18
19
20
10
9
16
15
+5V
3
2
1
+5V
4094
Input selection
Keys
TO RELAY CONTROL CIRCUIT
Sandby control line
10k
10k
10K
18V Power Supply
Circuit
PHONE71
Ipod IN
10
2K2
Q717
+5V
MICROPROCESSOR CONNECTION DIAGRAM
IR IN
CIRCUIT
IR Flash
Mute Flash
Remote Mute Flash
IC75
10
9
PIN CONFIGURATION
CD4094
KEY BOARD IC74&IC75
STROBE 1
16 VDD
DATA 2
15 OUTPUT ENABLE
3
14 Q5
Q1 4
13 Q6
Q2 5
12 Q7
Q3 6
11 Q8
Q4 7
10 Q'S
VSS 8
9 QS
CLK
CL
p
2
Q
D
CL
CL
Q
D
1
D
2
CL
CL
Q
10
n
Q'S
8
CL
CL
SERIAL
OUT
CL
CL
Q
p
n
CLOCK
TR
TR
*
CL
TR
3
CL
STROBE
*
STAGES
3-7
CL
TR
TR
1
TR
TR
TR
TR
SERIAL
OUT
10
QS
LATCH
LATCH
2
TR
LATCH
1
8
* VDD
OUTPUT ENABLE
*
15
3 - STSTE
1
p
n
VSS
VDD
TL082D
MAIN BOARD IC41&IC42&IC43
3
STATE
8
3STATE
2
4
5
6
7
14
13
12
11
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
OUTPUT A
INVERTING INPUT A
NON-INVERTING INPUT A
V-
11
1
8
2
3
4
7
-
A
+ +
B
-
V+
OUTPUT B
6 INVERTING INPUT B
5 NON-INVERTING INPUT B
VSS
* ALLINPUTS
PROTECTED BY
CMOS PROTECTION
NETWORK
uPC1237HA
MAIN BOARD: IC44
8PIN PLASTIC SLIM SIP
8
1
ICS BLOCK DIAGRAM
VCC
8
Overload Detector
2
Output Offset Detector
6
VCC ON
MUTE
AC---OFF detector
Switch for latch/automatic --reset
5
GND
3
12
4
Relay driver
1
Flip--Flop
7
24C01
KEY BOARD IC71
3,1&21),*85$7,21
NC
1
8
VCC
NC
2
7
NC
NC
3
6
SCL
VSS
4
5
SDA
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Pin Configuration
PDIP/SOIC
Vcc
RST/VPP 1
20 VCC
(RXD) P3.0 2
19 P1.7
(TXD) P3.1 3
18 P1.6
XTAL2 4
17 P1.5
XTAL1 5
16 P1.4
( INT0 ) P3.2 6
15 P1.3
( INT1 ) P3.3 7
Block Diagram
GND
14 P1.2
(TO) P3.4 8
13 P1.1 (AIN1)
(T1) P3.5 9
12 P1.0 (AIN0)
GND 10
RAM ADDR.
REGISTER
B
REGISTER
FLASH
RMA
PROGRAM
ADDRESS
REGISTER
STACK
POINTER
ACC
11 P3.7
TMP2
BUFFER
TMP1
PC
INCREMENTER
ALU
INTERRUPT SERIAL PORT
AND TIMER BLOCKS
PROGRAM
COUNTER
PSW
RST
TIMING
AND
CONTROL
INSTRUCTION
DPTR
REGISTER
ANALOG
COMPARATOR
PORT 1
LATCH
PORT 3
LATCH
PORT 1 DRIVERS
PORT 3 DRIVERS
+
OSC
-
P 1.0 - P 1.7
14
P 3.0 - P 3.5
P 3.7
ALIGNMENT PROCEDURES
I. INITIAL
A. LOWEST VOLUME ADJUSTMENT
1. Tune the volume pot to lowest state.
2. Input a high voltage signal such as 5V from CD input.
3. Connect a oscilloscope to L channel binding posts.
4. Observing the oscilloscope,adjust VR301,make the output of speakers become to the
lowest level.
5. Adjusting VR302,make R channel output become to the lowest level by same way.
B. IDLING CURRENT
1. Level power on for a minimum of 5 minutes
2. Connect a DC voltmeter toTP1 and TP2 ,adjust VR22 for 4mV reading on voltmeter.
3. Connect a DC voltmeter toTP3 and TP4 ,adjust VR12 for 4mV reading on voltmeter.
C.ISC CIRCUIT ORIGINAL ADJUSTING
Adjust the pot VR3 to make the DC voltage of the point of TP10 to the same as TP11
II. FINAL ADJUSTMENT
Repeat procedure A,B and C for the lowest volume level, idling current alignment
and ISC original level respectively.
C325BEE MAIN BOARD
TP10
TP11
VR3
TP1
VR22
TP2
TP3
VR12
VR302
TP4
VR301
15
SCHEMATICS DIAGRAM
PREAMP CIRCUIT Vm1.2
PCB-1:MAIN BOARD Vm2.0
RL31B
RCA33E
REC2
470
R338
RCA34A
TAPE1
RCA34C
REC1
C313
100p
1M
R315
470
R339
1M
R317
470
C315
100p
RL36B
C325
CON3
RCA31B
DISC
RCA31D
CD
RCA32B
VIDEO
RCA32D
AUX
RCA33B
TUNER
RCA33D
TAPE2
RCA33F
REC2
RCA34B
TAPE1
RCA34D
REC1
CB32
LOW NOISE AMP
IN MODULE
RL39A
R396
470
R395
C305
100P
1M
R32
470
R350
C32
100p
1M
R34
470
R352
C34
100p
1M
R36
470
R354
C36
100p
1M
R38
470
R356
C38
100p
1M
R310
470
R358
C310
100p
1M
R312
470
R341
1M
R316
470
R343
C312
100p
C314
100p
C316
100p
1M
R318
470
1
2
3
4
5
6
7
8
9
R331
390 MF
RL36A
R320
R324
N.I. 750 MF
R402
10K
C301
10uF/50V
SW31B
4
5
6
C320
C417
4u7/25V
R403
1K
220p
100K 100pF
R389
10M
D315
1N4148
R383
R385
560 1%
1.8
R384
R386
560 1%
D314
N.I.
1.8
R388
20k
C338
0.1u
R390
10M
VR302
100
C346 0.1uF
C344 220p
R336
C340
1u/16
RT32B
BASS POT
10KA
Q32
K363
68
C342
47u/25
BY MOTOR
Q402
C1815
C303
220p
R334
4.7K
100K 100pF
+18V
R489
100K
D423
R436
56K
A1015
+12V
-46V
+5V
+18V
-18V
1N4148
Q403
A1015
M + C418
R405
1K
4u7/25V
R457
220K
+5V
100K
R407
1K
C434
22n/63V
Q404
C1815
R451 R435
330K 390k
CZ61
1
2
3
4
5
6
7
8
9
CON9
+18V
LOUT
LINLIN+
GND
RIN+
RINROUT
-18V
C62
220p
R621 30K
C611
R62
220
R64
1M
C610
100p
Q62
2SK170
C64
22p
D64
1N4148
C67
0.1u 20%
R612
1K
R616
33
-46V
TO CZ71
Ipod
C66
0.1u 20%
Q63
A970
R67
1K
R620
10
R61
220
R63
1M
R617
10
C69
100p
Q61
2SK170
C63
22p
Q66
B647
R69
430 2%
16
C65
0.1u 20%
R611
1K
Q67
D667
R615
33
D61
1N4148
D62
1N4148
R614
10K
1
2
3
4
5
6
7
8
9
VOLVOL+
C61
220p
D63
1N4148
R610
430 2%
Note:C611 is 43pF ON "IN MODULE"
75pF ON "OUT MODULE"
Q68
D667
CB34
Soft Cliping
REMOTE MUTE
Standby
Protection
C302
220p
Q65
A970
+12V
-46V
+5V
+18V
-18V
Protection
Standby
Soft Cliping
R404
10K
PREAMP IN/OUT MODULE BOARD Vm1.2
PCB-6/7:OUT/IN MODULE BOARD Vm1.0
R68
1K
RCA35B
R PRE-OUT
R348 C364
RT33B
20KB
VOLUME POT
Q411
R406
1K
C68
0.1u 20%
R347 C363
VR301
100
20K
1
2
3
4
5
6
7
8
9
R448
C318
100p
RCA35A
L PRE-OUT
C343
R333
4.7K
C341
47u/25
C339
1u/16
R387
0.1u 10%
R346
220K
MF
+12V Trigger
Q31
K363
R335
68
C336
N.I.
VOLUME CONROL
RT33C
20KB
Q401
A1015
PHONE2
R332
390 MF
R328
180 MF
TONE DEFEAT SW OFF
ON
IR OUT
C349 N.I.
R330
1K5 MF
VR304
30K
R2
10
C345
0.1uF
C350 N.I.
C330
0.1u 5%
63V
RL37A
RL38A
C337
0.1U
-18V
R364 R362
51K N.I.
RI3
33
C3 0.1uF
C326
47u/25
C328
22n 5%
PHONE1A
QI2
2SA1015
BY MOTOR
-18V
RL33A
RL35A
RI4 RI2
4.7K 1K
CB33
LOW NOISE AMP
OUT MODULE
3K3 MF
R322
IR IN
+5V
+18V
R326
390 MF
PHONE1B
RI7
330,5%
C362
10n
Ipod
C335
N.I.
R392 560 1%
RL32A
QI1
2SC1815
TAP1
TAP2
TUNER
VR303
30K
R391 560 1%
C322
0.1U
RL34A
RL38C
+18V
C323
47u/25
RL31A
RL37C
+5V
1M
R314
470
R342
R363 R361
51K N.I.
SW31A
1
OFF
2
TONE DEFEAT SW
3
ON
R-CH INPUTS
3
2
Ipod-R 1
C304
100P
1M
C327
22n 5% 63V
C329
0.1u 5%
63V
C324
47u/25
RL36C
R329
1K5 MF
R327
180 MF
R393
Ipod-L
R319 R323
N.I. 750 MF
0.1u 10%
R345
220K
MF
RL39B
CB35
R321
3K3 MF
C321
0.1U
C319
RL35C
R325
390 MF
RL37B
RL38B
RL34C
C325BEE TONE CONTROL CIR.
47u/25
C317
100p
470
R394
RL33C
TO CZ72
RI6 10K
12V TRIG
C311
100p
1M
R313
RL35B
RL32C
10
9
8
7
6
5
4
3
2
1
+5V
RI1 10K
RT33A
20KB
VOLUME POT
470
R337
RI5 10K
CB31
TAP1
DISC
TAP2
TUNER
AUX
VIDEO
CD
+12V
IROUT
IRIN
+12V
RL39C
RT34A
20K MN
BALANCE POT
1M
R311
D316 +12V
1N4148
D313
1N4148
RT34B
20K MN
BALANCE POT
RCA33C
C39
100p
D312
1N4148
RT32A
10KA
BASS POT
470
R357
TAPE2
C37
100p
1M
R39
D311
1N4148
RL34B
RL31C
470
R355
D310
1N4148
C333
C331 0.22u
1u,63V,5% 5%,63V
TUNER
D39
1N4148
C332 63V
C334
1u,63V,5% 0.22u 5%
RCA33A
1M
R37
D37
D38
1N4148 1N4148
AUX
AUX
C35
100p
RL33B
VIDEO
470
R353
RCA32C
C33
100p
1M
R35
RT31A
10KA
TREBLE POT
VIDEO
470
R351
C325BEE RELAY CONTROL CIR.
RL32B
RT31B
10KA
TREBLE POT
RCA32A
C31
100p
1M
R33
CD
CD
470
R349
DISC
RCA31C
R31
L-CH INPUTS
RCA31A
DISC
R618 R619
10
10
Q64
B647
R613
10K
SCHEMATICS DIAGRAM(1/4)
AMP CIRCUIT Vm1.4
PCB-1:MAIN BAORD Vm2.0
+46V
R130
+46VD410
R420
36K
20V
ON
4
5
6
S41B
R159
C415
10u/25V
R138
430
D12
4.7V
0.5uH
C127
N.I.
R145
0.068/3W CE
Q116
KSC2690
R146
1K8,1W,1%,MF
R166
5K6
C123
R137 FS
1nF
C16
220uF/63V
C113
470p,100V,20%
R129
330/0.5W
IC11
AZ431
R168
1K
R167
1K
R133
3K3/2W
Q113
KSA1220
R108
39,MF,5%
R143
22,MF,5%
R127
3K3/2W FP
1
2
IC41A
TL082D
C122
1uF,63V,5%
C429
10u/25V
5
R473
43K
C426
10u/25V
C204
22uF/16V
-18V
R249
68,1/4 1% MF
39p
Q27
C1815
330/0.5W FP
R228
R264
10K
Q218
2SC2240
D24
1N4148
R266
5K6
R220
82,MF,5%
C224
100,5%
R265
10K
C223
0.1uF
1nF
C26
220uF/63V
R268
1K
R238
430
C211
47u/25V
D22
4.7V
R244
0.068/3W CE
R245
0.068/3W CE
Q216
KSC2690
R233
3K3/2W FP
10 FS
C213
470p,100V,20%
R246
1K8,1W,1%,MF
C215
P/N: 01-32520-01
POWER AMP CIR. L
-46V
P4-R
P3-R
P2-L
P1-L
R261
17
3
+18V
R488
100K
18K
4
D419
1N4148
3
BINDING POSTS
SPKOUT
R OUT
L OUT
R257
470K
C222
1uF,63V,5%
Over Heat Protection:
It shuts down the unit
when the temperature on
the heatsink is over 90C
degrees.
It also shuts down the unit
when the unit enters the
standby mode.
R258
2.2k
1
D412
1N4148
R453 220/2W FP
R441
4.7K
R437
47K
D431
3.6V
+2.16V
R12/2
22K
D43
1N4148
1
Q412
C1815
1
2
3
4
5
N8C320D03
1
2
3
4
5
JK41
PHONES SOCKET
+18V
STANDBY
R438
22K
1K,5%
2
R445
56K
+46V
-18V
+18V
R467
T0=80 degree C
R491
+3.25V
-46V
0.1u
+46V
7
IC42B
TL082D
VR3
10K
18K
R452 220/2W FP
R260
R468
22K
Q421
C1815
R493
180k
R480
3K9
4
R446
56K
1
2
3
4
5
6
7
100K
6
2
R469
10K
R487
1N4148
C221
1uF,63V,5%
1K,5%
D428
1N4148
100K
C219
22n 10% 63V
6
R243
22,MF,5%
82/1W FS
-46V
R256
470K
5
R208
39,MF,5%
R227
3K3/2W
100K
R479
R482
4K7
CB45 CZ45
+18V
Q213
KSA1220
L22 100uF
+46V
+18V
C218
0.1u 10% 63v
3
L21
0.5uH
R239
412
R231
R269 330
R251
10/1W FS
C220
22n 10%
63V
R250
1/1W FP
R237
IC21
AZ431
R267
1K
C227
N.I.
Q21
C1815
R247
1K
TP2
1N4148
AMP-SMD MODULE L CHANNEL Vm1.4
PCB-4:AMP-SMD-L Vm1.0
P5-GND
R224
D203
1N4148
D26
D21
47u/25V 4.7V
R248
15K
TP1
VR22
200
1
R478
R490
8
47K
C210
D27
1N4148
Q212
KSC2690
3
R252
22K
4
C29
R205
39k,MF,5%
R259
R221
5
Q214
2SA1943
1
IC43A
TL082D
2
TP11
D420
RL12/1
F1AA012V
O/P RELAY
C425
10u/25V
TP10
C428
10u/25V
R442
56K
C420
100u/16V
R440
2K2
R454
100,2W
R455
100,2W
C325BEE HEADPHONE BOARD Vm1.2
PCB-10:HEADPHONE Vm1.0
R443
150 1/2W FS
STANDBY
IC44
UPC1237HA
6
0V
Standby
Protection
Soft Cliping
+5V
+18V
-18V
+12V
-46V
2
D42
1N4148
R439
T0=90 degree C
POSISTOR
0V
0V
C422
330u/16V
0V
+2.0V
5
R255
10
10 FS
Q210
KSA1220
R223
Q25
A1312-GR
C24
10u/35V
R236
100K,MF
R216
15
R210
39k,MF,5%
Q217
2SA970
R207
39,MF,5%
R470
10K
D417
1N4148
D418
IC43B
1N4148
TL082D
C431
10u/25V
R476
1K
ISC CIRCUIT
8
R215
15
D202
1N4148
D25
1N4148
R242
22,MF,5%
2
C49
47u/25V
7
C214
0.1u 10% 63V
Q215
2SC5200
C22
1nF
39p
Q211
KSC2690
CON9
C28
R225
CON8
Q24
C3324-GR
R226
3K3/2W
470p,100V,20%
C212
3.3/0.5W
-18V
R25
22K
R211
100,MF,5%
Q26
A1015
R229
C21
10u/16V
8
7
6
5
4
3
2
1
R232
3K3/2W FP
330/0.5W FP
100
CZ21
8
7
6
5
4
3
2
1
Q202
A1312-GR
C27
0.1uF/63V
CZ21
Q22
A1312-GR
R24
R21
470
R22
220K
+18V
Q45
A1015
Q23
R212
100,MF,5% C3324-GR
Q46
C1815
D201
1N4148
R263
1K
D23
1N4148
R222
100K,MF,5%
R29
39k,MF,5%
Q28
2SB647
Q201
C3324-GR
C23
10u/35V
R262
1K
R219
82,MF,5%
Q29
2SD667
C203
22uF/16V
R206
82,MF,5%
R417
100
Q203
C3324-GR
R203
82,MF,5%
R201
Q204
A1312-GR
R416
100
C25
220uF/63V
39K,MF,5%
+18V
R254
10
RCA35C
MAIN-IN L-CH
82/1W FS
R269
1M2
36K
I-V
AC DET.
ISC TRIG
CB47
7PIN
R471
10K
6
47K
ISC Circuit:
It switch the power
supply to lower voltage
when the load
impedance is low, or the
temperature on the
heatsink is over 80C
degree
+46V
3.3/0.5W FP
R421
R202
220k,MF,5%
20V
DB104
-37V
33 / 0.5W FS
+18V
R472
470K
R477
R158
2.2k
POWER AMP CIR. R
R230
D430
R42
680
C430
10u/25V
0.1u
SOFT CLIPING CIR.
R204
220k,MF,5%
-46VD411
C416
10u/25V
680
C414
220u/35V
R474 1K
1K,5%
-18V
R423
1.3K
680
22p
*
R44
R46
+18V
IC45
AMS1117-5.0
4700uF/16V
C44
220u/63V
R48
-18V
P/N: 01-32520-02
R425
1.3K
1
Q44
A1015
C46
C48
10u/25V
-18V
+18V
R161
270K
C115
680
Q42
2SA1220
R483
82/1W FS
AMP-SMD MODULE R CHANNEL Vm1.4
PCB-5:AMP-SMD-R Vm1.0
C412
0.1u
100uF
C43
220u/63V
C444
R410
R412
2K MF
+5V
680
Q43
C1815
4K7
C41
0.1uF
C445
R43
R47
680
12V TRIG
-46V
R157
470K
680
R413
680
Q423
C2240
R494
12
680
R41
680
C413
220u/35V
C45
22p
R160
1K,5%
3
L12 100uF
R149
68,1/4 1% MF
R150
R1561/1W FP
470K
C121
1uF,63V,5%
0.1uF
Q422
D667
R495
510
C446
10uF
R131
R169 330
C419
10uF
R139
412
10
0.1uF
+12V
C119
22n 10% 63V
L11
TP4
Q118
2SC2240
10/1W FS
C410
47u/25V
Q18
2SB647
C124
100,5%
R165
10K
1N4148
D14
1N4148
R120
82,MF,5%
R105
39k,MF,5%
R422
1.3K
R424
1.3K
OFF
1
2
3
S41A
-18V
Q17
C1815
R164
10K
C111
47u/25V
R151
C120
22n 10%
R49
+37V
R45
33/0.5W FS
STANDBY
D403
R401 1N4148
R429
5K1
C443
Q413
KSC2690
R411
7
C104
22uF/16V
D16
Q111
KSC2690
R144
0.068/3W CE
C118
0.1u 10% 63V
D49
18V
R414
2K2
MF
Q41
2SC2690
C47
47u/25V
PROTECTION CIR.
4
C14
10u/35V
39p
D103
1N4148
Q11
C1815
C411
0.1uF
3
R110
39k,MF,5%
R155
10
C19
Q15
A1312-GR
47K
15K
R147
1K
VR12
200
D11
4.7V
R123
R116
15
Q112
KSC2690
Q414
C1815
8
R419
100
C110
47u/25V
R428
2K2
R152
22K
4
C12
1nF
KSA1220
Q110
100K,MF
TP3
SUPPLY CIR.
+18V
R427
22/1W FP
R148
R136
10 FS
Q12/1
A1015
8
CON9
Q117
2SA970
D17
1N4148
Q115
2SC5200
CON8
470p,100V,20%
C112
R125
3.3/0.5W
-18V
Q114
2SA1943
39,MF,5%
R121
R122
100K,MF,5%
R418
100
R15
22K
R115
15
Q19
2SD667
Q48
C1815
100
R106
82,MF,5%
Q47
A1015
R14
39p
D102
1N4148
D15
1N4148
+37V
C12/1
47uF/25V
R12/1
6K8
R107
R163
1K
C18
Q104
A1312-GR
C17
0.1uF/63V
8
7
6
5
4
3
2
1
Q14
C3324-GR
Q102
A1312-GR
470
R111
100,MF,5%
C114
0.1u
R142
22,MF,5%
R128
330/0.5W FP
D13
1N4148
Q16
A1015
R104
220k,MF,5%
10u/16V
R11
R12
220K
8
7
6
5
4
3
2
1
CZ11
Q12
A1312-GR
RCA35D
MAIN-IN R-CH
CZ11
Q13
R112
100,MF,5% C3324-GR
+18V
R102
220k,MF,5%
R19
39k,MF,5%
R126
3K3/2W FP
R132
3K3/2W FP
R119
82,MF,5%
R103
82,MF,5%
Q101
C3324-GR
C13
10u/35V
Q103
C3324-GR
D101
1N4148
R124
3.3/0.5W FP
R101
C103
22uF/16V
C11
C15
220uF/63V
39K,MF,5%
+18V
R154
10
R162
1K
4
82/1W FS
R169
1M2
C432
0.22u
C421
4u7/50V
+5V
+18V
-18V
+12V
-46V
SCHEMATICS DIAGRAM(4/4)
C325BEE IR BOARD Vm1.0
PCB-11:IR BOARD Vm1.0
SHIELDING
IC71
1
2
3
4
NC Vcc
NC
NC
NC SCL
Vss SDA
Y71
D710
POWER/PROTECTION IND.
+5V
GREEN
1N4148
D711
513AW
R763
10K
C78
0.1u
R765
N.I.
1
2
3
4
5
6
7
8
9
10
C79
27p
20
19
18 P22
17 P21
16 P20
15
14 P02
13 P01
12 P00
11
RST/VPP
VCC
P3.0(RXD) P1.7
P3.1(TXD) P1.6
XTAL2
P1.5
XTAL1
P1.4
P3.2(INTO) P1.2
P3.3(INT1) P1.2
P3.4 (AIN1)P1.1
P3.5 (AIN0)P1.0
GND
P3.7
TUNER
S74
S71
100p 100p 0.1uF
CZ74
CB74
TO MAIN BOARD CB35
+5V
R762
AUX
10K
R703
2K2
R764
10K
+12V
Q717
2SC1815
D714
1N4148
R726
2K2
R759
2k2
R725
2K2
C715
10n
R742
4K7
Q710
C1815
TUNER
C716
10n
R743
4K7
Q711
C1815
C717
10n
R744
4K7
D74
TAPE1
GREEN
DISC
Q712
C1815
D77
CD
GREEN
C718
10n
R745
4K7
CD
Q713
C1815
D75
DISC
AMBER
C719
10n
R746
4K7
Q714
C1815
C720
10n
R747
4K7
Q715
C1815
R753
R754
R761
4K7
4K7
4K7
4K7
IP
R752
4K7
TA1
R751
4K7
C
R750
4K7
DI
R749
4K7
C723
100uF/16V
KEY BOARD Vm1.2
PCB-3:KEY BOARD Vm1.0
18
D716
GREEN
TAPE1
R748
TA2
VI
Q79
C1815
TAPE2
D72
TUNER
GREEN
C721
10nF
TAPE1
DISC
TAPE2
TUNER
AUX
VIDEO
CD
+12V
IR OUT
IR IN
SOFT CLIPING
REMOTE MUTE
PROTECTION
+5V +12V
1
2
3
4
5
6
7
8
9
10
CZ76
TO CB31
Q718
C1815
R760
4k7
SOFT CLIPING
R733
5K1
AUX
D76
TAPE2
GREEN
+12V
R741
4K7
D71
AUX
GREEN
+5V
C714
10n
AU
8
16
15
3
2
1
Q8
Q7
Q6
Q5 VCC
Q4
OE
Q3 CLK
Q2
D
Q1 STR
QS VEE
QS
IP
C
TA1
DI
TU
TA2
AU
VI
Q716
C1815
VIDEO
11
12
13
14
7
6
5
4
10
9
16
15
3
2
1
Q8
Q7
Q6
Q5 VCC
Q4
OE
Q3 CLK
Q2
D
Q1 STR
QS VEE
QS
R730
15K
REMOTE MUTE
R727
2K2
D73
VIDEO
GREEN
IC74
4094
MUTING BLINK
IR IN
4.7K
R758 R757 R756
10K
10K
10K
C712
0.1u 20%
IR BLINK
IR OUT
Q73
R766C1815
DISC
RG L
CZ75
0.1u 20%
10
9
D718
1N4148
PROTECTION
Q72
C1815
IC75
4094
Q74
C1815
R701
2K2
S72
R702
+5V
11
12
13
14
7
6
5
4
D715
1N4148
+12V
S75
10K
C711
8
D713
1N4148
R72
470
VIDEO
C710
27p
D712
1N4148
1 2 3 4 5
R71
330
TAPE2
+5V
1 2 3 4 5
+5V
CD
VOL+
VOL-
CB73
S73
AT89C4051
+5V
C758 C759 C760
PHONE71
Ipod IN
S76
TAPE1
1N4148
CZ73
TP701
S77
TU
D717
8
7
6
5
C722
N.I.
S78 STANDBY
2
IC73
24C01
C325BEE STANDBY BOARD Vm1.0
PCB-8:STANDBY BOARD Vm1.0
RED
R708
10K
Ipod GREEN
C725
N.I.
1
2
3
4
CON3
C72
0.1uF
C77
10n
C724
N.I.
1
2
3
4
C71
100u/16V
D719
+5V
1
2
3
R73 10K
IC76
TCM810MENB
3
3
2
1
+5V
1
VCC
3
GND
21
SIGNAL
+5V
CB72
11.0592MHz
IC72
IR RECEIVER
IS1U60L
CZ76
1 2 3
P9
IPOD BAORD Vm1.0
PCB-9:IPOD BOARD Vm1.0
+5V
VOLVOL+
IPOD
9
8
7
6
5
4
3
2
1
CZ71
TO CB34
SCHEMATICS DIAGRAM (3/4)
POWER CIRCUIT Vm1.2
PCB-2:POWER BOARD Vm2.0
R531
0.05/3W 5% CE
A1015
Q510
R562
1K
R561
100
R532
220
Q59
A1015
R563
22K
Q517
A1015
NAD C325BEE POWER CIR.
R558
1K
D531
TIC116D
CB55
3
2
1
C54
R533 R567 R534
1M
330K 2K2
!
C517
15000uF/50V 10%
CON3
!
2
1
D55
KBU8D
D51
KBU8D
CB56
C53
4.7nF/400V
D532
TIC116D
+46V
-46V
R565
Q519
A1015
CB58
2
1
R566
4K7
1
2
3
4
5
6
7
Q518
C1815
1K
R559
22K
1K
TRIG
AC DET.
I-V
+37V
-37V
~8V
0V
D513
1N4004
1
2
3
CON3
CB59
R560
100
R564
C1815
Q520
CB53
AC POWER CORD
C52
C51
10n/250V 10n/250V
10%
10%
CB52
RED
WHITE
3
2
1
0.47uF
C518
15000uF/50V 10%
CB54
2 +46V
RED
WHITE 1 -46V
CZ55
1
2
3
+37v
C523
3300u/50V
CON3
CB57
D56
DB104
3
1
R544
C524
2200u/50V
22K
F52 F51 F54 F53
-37v
POWER SWITCH
1
2
3
SW52
!
CON3
CZ59
1
3
2
1
2
1
(For AH version)
2
AC outlet
CON3
CZ57
1
2
3
CON3
CON3
CB51
CZ51
T401
6.3A/250V X4
36.4V
36.4V
0V
28.5V
28.5V
8V
0V
F55
500mA/250V
CZ56
1
2
3
4
5
6
7
CON7
7
6
5
4
3
2
1
CON7
RED
VIO
BLK
ORG
GRY
!
Transformer
19
20
RT32
C121
J109
RT31
J92
C345 J110 C341
C337
C338
C340
RT34
C339
C301
C417
C418
Q401
Q403
VR3
R12/2
R489
R12/1
R435
J46
Q411
R436
J53
C324
IC44
J58 C432
H3
D403
J59
H2
RT33
J63
J62
R440
D423
R443
C41
R471
R470
R482
R478
R493
C428
C425
J74
PROTECT
J43
(DGND)
+5V
R448
R457
R451
VOLVOL+
C434
J203
R476
D417
J40
C426
Q414
Q413
C49
J65
J42
J41
R480
R477
(GND)
R479
TP11
R428
R429
Q41
C421
D418
J32
J34(+12V)
J33(DGND)
NAD C325BEE MAIN BOARD Vm2.0
C446
R401
J68
D49
R474
C429
Q42
J85
J88
C413
R411
R413
D428
R473
R472
TP10
D316
R494
C414
J57
C420
R469
R468
D37
RL39
RL31
RL32
RL33
RL34
RL35
RL36
RL37
J27
RL38
D314
J25
RI1
J38
C362
J29
J28
J26
C318
C317
Q32
R34
R31
R32
R393
R394
C34
C31
C32
C304
RI7
RI6
RI5
C305
R36
R33
C36
C33
R395
R396
R350
R349
R352
R351
R354
R353
R38
R35
R356
R355
R358
R310
R37
R357
R312
R39
R341
R337
R314
R311
R342
R338
R343
R316
R313
R339
R315
R317
R318
C364
C38
C35
C310
C37
C312
C39
C314
C311
C316
C313
C315
C344
R390
C363
R347
R348
RI4
RI3
RI2
CB35
Q423
C48
Q43
R47
J71
R414
C412
Q44
R48
C45
J56
COPYRIGHT C 2006NAD ELECTRONICS
Q422
C410
Q412
J47
J48
(+18V)
J39
R334
R336
Q31
J4
R495
C346 J93 C342
C12/1
Q12/1
J45
J24(PRE IN R)
J23
J22 (PRE IN L)
J21(GND)
J20(PRE OUT R)
D38
R427
C302
Q404
J86
RCA31
J89
J83
C46
C44
R412
(GND)
R407
C411
J67
Q421
R404
J103
C47
R49
J70 (+18V)
R43
R345
R405
J84
D39
R410
J78 (+18V)
D42
C323
R44
J69
J44
R441
C430
C303
J82 (-18V)
R438
J75
R437
D43
R442
BUS-BAR (PRE-GND)
R406
(PRE OUT R)
D310
R403
(GND)
J118
C16
R402
CB33
J72
R41
J66
R45
J77
J54 (+37V)
R392
R42
J87
R46
J80 (GND)
Q402
C325
C321
J117
R391
J55 (-37V)
C320
C319
J90
(PRE IN R)
R346
J115
J97 (+18V)
D311
RCA32
J116
(GND)
J112
(-18V)
R384
R386
VR302
R388
C350
J91
(PRE IN L)
C25
J114
J111
J95
R385
R383
VR301
R387
C349
J94
C322
C326
J113(GND)
SW31
D312
C336
J76(-18V)
R319
R320
R324
R322
R326
CB32
C328
J73
(-18V)
C221
C335
J181 (GND)
J182 (+18V)
J183
(GND)
D313
C327
C122
RCA33
J101
J79
J102
J96
(MAIN IN R)
(+18V)
J100
R265
J180
IC42
C329
J98 (-18V)
J99
PRE OUT L
J207
C223
R267
J19 (GND)
J18 (PRE OUT L)
J17 (GND)
J16 (MAIN IN R)
J11
C330
IC41
VR303
J153
R266
R264
J179
J178
C222
R328
R327
R325
R321
R323
J139
R164
R166
D202
D203
R268
C27
R165
R263
D201
IC21
R25
R24
C343
R389
RCA34
R364
R363
J135
C17
R167
D101
R22
R21
J12
J104
C11
IC11
R425
J177
C333
C331
R362 R329
VR304
R163
Q118
R262
Q218
R417
R423
C21
C123
D102
D103
R168
D411
Q217
J159
CB21
J136
(GND)
J137
CB11
J138
Q117
R162
R333
J9
J106
J105
R12
R421
J15 (GND)
D315
R335
R491
R361
C332
C334
R15
C15
J206
C415
J155
R11
C416
R260
D430
J14 (MAIN IN L)
IC45
R330
R331
D12 C111
R14
R257
R256
J201
R261
J13
R416
C211
J185
J8 (GND)
Q48
J154
C210
J184
R488
Q46
Q45
J205
C26
J176
D420
R424
R422
J202
R258
R445
R418
R419
Q47
R248
R252
R230
R227
R446
D17
R420
J156
J186
RCA35
R332
C110
J132
R144
J157
J175
R490
J107
J131
D27
R231
R226
J31
J30
D419
R156
R160
R161
Q21
J160
R233
R237
R487
R157
J158
P5-GND
D410
R148
R152
Q11
C220
H6
J151
H4
C120
R229
J200
R-OUT
R130
R126
J188 (L-OUT)
VR22
J187
D22
R242
R225
R239
J10
J129
R232
D21
R238
J6
R131
VR12
J130
R145
J161
J174
J189 (GND)
J150
J162
J190
J128
R132
J149
R228
R236
J199
Q213
Q211
C119 C118
R133
D11
R247
R207
J197
J198
R151
R127
J152
R147
R143
RED
(+46V)
R137
R128
J172
J173
R224
C213
J7
R158
H5
R138
R129
TP6
J163 R208
R243
Q216
C227
H7
R139
WHITE
(-46V)
J134(R-OUT)
J133(GND)
R108
TP8
Q212
R245
Q210
(-46V)
WHITE
Q110
Q112
J171
TP2
J140
C212
R244
J170
J169 (DGND)
CB47
R125
TP4
J141
C112
R-OUT
J108
TP7
J195(DGND)
J193
J5
R107
C115
L11
R142
(+46V)
RED
J196
RL12/1
R124
R136
C114
Q113
Q111
J127
TP3
J119
C113
P3-R
R246
R453 R150
Q116
P4-R
C214
J167
GND
C127
J168(GND)
TP1
J148
TP9
C215
J146
L-OUT
J120
Q115
P2-L
J145
TP5
J147
D412
R146
C445
J126
J1
J122
Q214
J166
J165
R250
J123
Q114
P1-L
J144 (GND)
PHONE1
R2
C3
J3
(DGND)
S41
J121
J124
TRIG
AC DET
I-V
+37
-37
8VAC
0VAC
Q215
J192
C444
J2
J191
L21
J164
CB45
J143
R452 R251
C219
J142(+46V)
PR
GND
PL
JDK
JDD
C218
R467
L-OUT
J125
SPKOUT
R439
PCB-1: MAIN BOARD Vm2.0
R483
PHONE2
QI2
QI1
J37
J35(+5V)
J36
IR IN
CD
IR OUT
CB31
VIDEO
+12V
AUX
TUNER
IC43
TAPE2
C431
DISC
TAPE1
SOFT CLIPPING
MUTE
STANDBY
Ipod
J49
CB34
J51
J52
J50
C422
J60
J61
C419
J64
C43
C443
J81(GND)
J204
H1
C52 F53
Q63
WHITE
D532
RED
C518
CB51
C69
R67
R61
R63
CB56
D55
C611
R69
R621
R620
-46V
CB54
J51
F54
C61Q61
R62
R64
C610
R610
+46V
J520
Q67
R611
C63
C64
C62
J510
R617
D61
D63
R618
R68
Q62
C53
J57
R615
R612
Q65
C54
J513
J52
Q64
C66 C68
Q68
To Power Switch
CB55
D62
C65
C67
D64
Q66
R616
To AC cord
Q517 Q520 Q519Q518
COPYRIGHT C 2006 NAD ELECTRONIC
NAD C325BEE OUTMODULE BOARD Vm1.0
R613
R614
J61
RED
PCB-7:IN MODULE Vm1.0
CB59
CB57
To AC Outlet
To Thansformer
R565
R560
R564
R559
R563
R566
R558
PCB-2:POWER BOARD Vm1.0
R619
J514
J56
BLUE
J512 (GND)
D531
J54
J58
Q63
R532
C611
R619
NAD ELECTRONICS
COPYRIGHT C 2006
NAD C325BEEVm2.0
C69
R67
R61
R63
R621
R69
Q510
C517
TRIG
AC DET
D56
R544
R567
I-V
D513
+37V
-37V
R534
R562
R561
R533
CB53
F55
21
8VAC
0V
J517
C63
C64
CB61
J516
R617
D61
D63
R618
R68
R620
R62
R64
C610
R610
J518
Q59
Q67
R611
C61Q61
C62
CB52
(GND)
Q62
R531
D51
J515
R612
WHITE RED
-46V +46V
C51 F52
R615
C66 C68
Q65
F51
Q64
T500MAL/250V
C65
C67
D64
D62
COPYRIGHT C 2006 NAD ELECTRONIC
NAD C325BEE IN MODULE BOARD Vm1.0
R613
R614
J61
Q68
CB58
J519 (GND)
PCB-6:OUT MODULE Vm1.0
Q66
R616
(-46V)
CB61
C524
C523
RED
CZ74
CZ75
PCB-9:IPOD BOARD Vm1.0
C325BEE STANDBY
BOARD Vm1.0
C325BEE IPOD BOARD Vm1.0
JK41
PCB-8:STANDBY BOARD Vm1.0
C760 TP701
22
IC72 S
G V
PCB-11:IR BOARD Vm1.0
CZ76
J752
(GND)
Q716
R454
COPYRIGHT C 2006
NAD ELECTRONICS
C325BEE KEY BOARD Vm1.0
S73
C325BEE HEADP Vm1.0
C71
Q717
R762
R702
R703
R764
R730
R73
S72
C77
C723
D716
RED
J794
CB72
PCB-10:HEADPHONE BOARD Vm1.0
CZ72
C721
CZ71
J732
J748 (GND)
R746
C719
Q714
R741
C714
Q79
J747
J746
J77
J76
C79
R750
R751
R749
R748
R761
R742
C715
Q710
R744
C717
Q712
R743
C716
Q711
R745
C718
Q713
C722
R753
J750(GND)
D77
J753
D73
J41
S71
J745
R760
R455
D71
J744
J738
(GND)
J743
J737(GND)
J742
J736
R747
C720
Q715
Q718
R765
R725
C712
C711
IC74
R754
7
J735
J734
(GND)
(+5V)
R752
R727
R733
D718
J730
J731
D72
J776
J728
J793
J727(+5V)
C78
J733
(+5V)
C710
J74
J75
J73(GND)
J72
J71
R708
C72
IC75
CZ45
S7
J719
J741
J729
J740
D76
C759
RED
L
D719
WHITE
PHONE71
C758
S74
R
J724
R726
J723
J722
C724
C725
J713
Q73
J714 D713
Q74 D712
D711
D710
RED
CB74
D75
S7
6
J726
S75
J721
D74
J725
(+5V)
J720
J79
J710
IC73
RED
D717
S78
RED
CZ73
R763
R72
J711
R701
R71
J792
R759
J712
J78
R758
J717
R756
J718
R757
J715
J716
D714
Q72
Y71
D715
9
CB73
IC71
3
J7
RED
PCB-3:KEY BOARD Vm1.0
J749
(GND)
PCB-5:AMP-SMD-R BOARD Vm1.0 P/N: 01-32520-02
(BOTTOM VIEW)
(TOP VIEW)
C325BEE AMP-SMD-R Vm1.0
D13
D16
C104
C103
Q18
Q19
D15
R103
R102R101R119
C19C18 Q103
Q104 Q17
Q102 Q15
R112R123
Q16
Q14
Q101
R111R19
R116R115
C12 R121
R154
R105
R155
R120 R110
R104
R106 R122
D14
Q13 Q12
L12R159R149
C14
C13
R169
C124
CZ11
C325BEE AMP-SMD-L Vm1.0
D23
D26
C204
Q29
Q28
C203
D25
C29C28 Q203
Q204 Q27
Q202 Q25
R212R223
Q26
Q24
Q201
R211R29
R216R215
C22 R221
R254
R204
R206 R222
R205
R255
R220 R210
R203
R202R201R219
D24
Q23 Q22
C24
L22R259R249
C23
R269
C224
CZ21
PCB-4:AMP-SMD-L BOARD Vm1.0
(TOP VIEW)
P/N: 01-32520-01
(BOTTOM VIEW)
23
TROUBLESHOOTING GUIDE
PUSH THE POWER SUPPLY
SWITCH TO ON
CHECK THE AMBER LED CONTROL
CIRCUIT(Q72,Q73,Q74,LED717)
CHECK 12V SUPPLY
YES
IS THE AMBER LED AMBER
LIGHT?
NO
YES
NO
IS IT RED?
IS IT GREEN?
NO
CHECK THE 5V SUPPLY CIRCUIT
(ON POWER BOARD)
YES
CHECK THE LED CONTROL
CIRCUIT(Q72,Q73,Q74,LED717)
AND PROTECET CIRCUIT
CAN PRESSING ANY KEY MAKE
THE UNIT WORK NORMALLY?
NO
YES
YES YES
CHECK THE POWER SUPPLIES
CIRCUIT
ARE ALL POWER SUPPLIES OK?
NO
IS THE ABMER LED GREEN?
NO
IS THE STANDBY SINGAL LOW
LEVEL?
YES
YES
CHECK THE PROTECT CIRUIT
NO
CHECK THE STANDBY CONTROL
CIRCUIT
YES
SOME KEYS IS USELESS?
YES
CHECK THE KEYS CONNECTION
NO
CHECK MCU AND RELAY
CONTROL CIRCUIT
IS THE SPK OUT NORMAL?
NO
NO NO
IS THE OUTPUT DC LEVEL
NORMAL?
CHECK THE SERVO CIRCUIT
YES
YES
IS THERE SIGNAL OUTPUT?
NO
IS THE POWER AMP INPUTNORMAL?
YES
YES
CHECK THE POWER AMP CIRCUIT
SECTION
YES
CHECK THE MUTE CONTROL
CIRCUIT
NO
IS THE MUTE SIGNAL OFF?
NO
IS THE VOLUME CONTROL CIRCUIT NO
NORMAL?
CHECK THE VOLUME CONTROL
CIRCUIT
YES
ARE THE TWO MODULES NORMAL?
NO
CHECK THE MODULES CIRCUIT
YES
CHECK THE TONE CIRCUIT
IS THE THD HIGH?
NO
IS THE S/N RATE BAD?
YES
TURN THE TRANSFORMER
YES
IS THE IDLE CURRENT NORMAL?
ADJUST THE IDLE CURRENT OR
NO
CHECK THE IDLE CURRENT
CIRCUIT
YES
CHECK THE POWER AMP CIRCUIT
(IF SOME TRANSISTORS ARE
DEFEATED)
IS THE REMOTE CONTROL OK?
NO
YES
IS THE IR IN/OUT NORMAL?
NO
CHECK THE IR IN/OUT
CONNECTION OR CIRCUIT(PARTS)
YES
IS THE REMOTE HANDSET ITSELF NO
NORMAL?
REPLACE THE BTTERIES OR
ANOTHER REMOTE CONTROL
HANDSET
YES
CHECK THE IR CONTROL CIRCUIT
(INCLUDE THE IR RECEIVER AND
MCU)
IS THE 12V SUPPLY NORMAL? NO
YES
IS THE 18V SUPPLY NORMAL?
NO
CHECK THE 18V SUPPLY
YES
DID THE 12V SUPPLY SHORT
GROUND?
CHECK THE CONNECTION
AND CHECK IF THE RELATIONAL
TRANSISTORS ARE DEFEATED
OK
24
ELECTRIAL PARTS LIST
PCB-1: MAIN BOARD
CIRCUIT NO.
IC41, IC42, IC43
IC44
PART NO.
ICS
03-00082-00
03-01237-00
IC45
03-01117-01
IC11, IC21
03-00431-03
DIODES
DESCRIPTION
TL082CP/CN/D
UPC1237HA
AMS1117-5.0/
LM1117MPX-5.0
AZ431BZ-B
D430
D17, D27, D101, D102,
D103, D201, D202, D203,
D37, D38, D39, D310,
D311, D312, D313, D315,
D316, D42, D43, D403,
D412, D417, D418
D419, D420, D423, D428
D11, D12, D21, D22
DB104
D410, D411
20V, 0.5W
1N4148 (Pitch=7.5mm)
1N4148 (Pitch=10mm)
4.7V, 0.5W
D49
18V, 0.5W
TRANSISTORS
Q31, Q32
31-00363-00
2SK363
Q31, Q32
or 31-00369-00
2SK369
Q31, Q32
or 31-00170-00
2SK170
QI2, Q12/1, Q44, Q45, Q47,
Q401, Q403, Q411
31-01015-00
2SA1015 GR
31-01815-00
2SC1815
31-00970-00
31-02240-00
2SA970 GR
2SC2240
31-00667-00
2SD667A
31-02690-00
KSC2690AYSTU
31-01220-00
KSA1220AYSTU
CAPACITORS
05-22012-00
22p, 100V, ±10%
05-10151-01
100p, 50V, ±10%
05-22151-01
05-47112-00
220p, 50V, ±10%
470p, 100V, ±10%
C362
05-10312-00
10n, 100V, +50%-20%
C120, C220, C434
24-22312-04
22n, 100V, ±10%
C123, C223, C3, C41, C443
24-10461-00
0.1uF, 63V, ±20%
C432
24-22461-00
0.22uF, 63V, ±20%
QI1, Q11, Q21, Q43, Q46,
Q48, Q402, Q404, Q412,
Q414, Q421
Q117, Q217
Q423, Q118, Q218
Q422
Q413, Q41, Q216, Q211,
Q212, Q112, Q116, Q111
Q42, Q213, Q210, Q110,
Q113
C45, C46
C31, C32, C33, C34, C35,
C36, C37, C38, C39, C304,
C305, C310, C311, C312,
C313, C314, C315, C316,
C317, C318, C363, C364
C343, C344, C302, C303
C112, C113, C212, C213
25
C327, C328, C119, C219
C329, C330
C114, C115, C118, C214,
C215, C218, C411, C412
C17, C27, C322, C321,
C345, C346, C337, C338,
C319, C320
C331, C332
C121, C122, C221, C222,
C333, C334
25-22361-01
25-10461-05
22n, 63V, ±5%
0.1uF, 63V, ±5%
25-10461-01
0.1uF, 63V, ±10%
25-10461-06
0.1uF, 63V, ±10%
25-22461-02
0.22uF, 63V, ±5%
25-10561-02
1u, 63V ±5%
C339, C340
06-10951-08
1uF, 50V, ±20%
C421, C417, C418
C301, C48, C415, C416,
C419, C425, C426, C428,
C429, C430, C431, C446
C11, C21
C12/1, C110, C111, C210,
C211, C323, C324, C47,
C49, C410
C12/1, C110, C111, C210,
C211, C323, C324, C47,
C49, C410
C325, C326, C341, C342
C325, C326, C341, C342
C420, C445
C125, C126, C225, C226
C413, C414
C15, C16, C25, C26, C43,
C44
C422
C444
06-47951-00
4.7uF, 50V, ±20%
06-10051-00
10uF, 50V, ±20%
06-10051-08
10uF, 50V, ±20%
06-47021-00
47uF, 25V, ±20%
06-47021-08
47uF, 25V, ±20%
06-47021-06
06-47021-09
06-10111-00
06-22131-00
47uF, 25V, ±20%
47uF, 25V, ±20%
100uF, 16V, ±20%
100uF, 63V, ±20%(N.I)
220uF, 35V, ±20%
06-22161-00
220uF, 63V, ±20%
06-33111-01
06-47211-00
RESISTORS
07-91204-02
07-10189-50
07-10100-50
07-10120-50
07-10220-51
07-10330-50
07-10390-51
07-10680-51
330uF, 16V, ±20%
4700u, 16V, ±20%
1M2¡, ±1%
1R8, 1/6W, ±5%
10R, 1/6W, ±5%
12R, 1/6W, ±5%
22R, 1/4W, ±5%
33R, 1/6W, ±5%
39R, 1/4W, ±5%
68R, 1/4W, ±5%
07-10101-50
100R, 1/6W, ±5%
07-10331-50
07-10431-51
330R, 1/6W, ±5%
430R, 1/4W, ±5%
07-10471-50
470R, 1/6W, ±5%
07-10471-51
470R, 1/4W, ±5%
07-10511-50
510R, 1/6W, ±5%
07-10681-51
680R, 1/4W, ±5%
07-10102-50
1K, 1/6W, ±5%
07-10102-51
1K, 1/4W, ±5%
R169, R269
R385, R386
R2
R494
R142, R143, R242, R243,
RI3
R107, R108, R207, R208
R335, R336
R14, R24, R416, R417,
R418, R419
RI7
R138, R238
R11, R21
R31, R32, R33, R34, R35,
R36, R37, R38, R39, R310,
R311, R312, R313, R314,
R315, R316, R317, R318,
R393, R396
R495
R41, R42, R43, R44, R47,
R48, R49, R410, R411,
R413,
RI2, R162, R163, R167,
R168, R262, R263, R267,
R268
R147, R160, R161, R247,
R260, R261, R403, R406,
R405, R407, R474, R476
26
R422, R423, R424, R425
R428, R440, R158, R258
R480
R401, R482, , R333, R334,
RI4
R429
R166, R266
R12/1
RI1, RI5, RI6, R164, R264,
R165, R265
R470, R471, R469, R402,
R404
R148, R248
R441
R487, R488
R387, R388
R15, R25, R152, R252
R12/2, R468
R420, R421
R473
R477, R437
R436, R442, R445, R446
R347, R348, R448, R478,
R479, R489, R490, R491
R438, R493
R12,R22
R457, R345, R346
R483
R451
R435
R472, R156, R157, R256,
R257
R337, R338, R339, R341,
R342, R343, R349, R350,
R351, R352, R353, R354,
R355, R356, R357, R358,
R394, R395
R327, R328
R325, R326
R331, R332
R139, R239
R383, R384, R391, R392
R323, R324
R329, R330
R412
R414
R321, R322
R363, R364
R389, R390
R150, R250
R124, R125, R224, R225
R427
R452, R453
R128, R129, R228, R229
R146, R246
R126, R127, R132, R133
R226, R227, R232, R233
R136, R137, R236, R237
R151, R251
R45, R46
R130, R131, R230, R231
R443
R144, R145, R244, R245
L11, L21
07-10132-50
07-10222-51
07-10392-51
07-10472-51
07-10472-50
07-10512-51
07-10562-50
07-10682-51
1K3, 1/6W, ±5%
2K2, 1/4W, ±5%
3K9, 1/4W, ±5%
4K7, 1/4W, ±5%
4K7, 1/6W, ±5%
5K1, 1/4W, ±5%
5K6, 1/6W, ±5%
6K8, 1/4W, ±5%
07-10103-50
10K, 1/6W, ±5%
07-10103-51
10K, 1/4W, ±5%
07-10153-50
07-10153-51
07-10183-51
07-10203-50
07-10223-50
07-10223-51
07-10363-50
07-10433-51
07-10473-51
07-10563-51
15K, 1/6W, ±5%
15K, 1/4W, ±5%
18K, 1/4W, ±5%
20K, 1/6W, ±5%
22K, 1/6W, ±5%
22K, 1/4W, ±5%
36K, 1/6W, ±5%
43K, 1/4W, ±5%
47K, 1/4W, ±5%
56K, 1/4W, ±5%
07-10104-51
100K, 1/4W, ±5%
07-10184-51
07-10224-50
07-10224-51
07-10274-51
07-10334-51
07-10394-51
180K, 1/4W, ±5%
220K, 1/6W, ±5%
220K, 1/4W, ±5%
270K, 1/4W, ±5%
330K, 1/4W, ±5%
390K, 1/4W, ±5%
07-10474-51
470K, 1/4W, ±5%
07-10105-51
1M, 1/4W, ±5%
07-20181-51
07-23900-51
07-23900-50
07-24120-51
07-25600-50
07-27500-51
07-21501-50
07-20202-51
07-20222-51
07-20332-51
07-20513-50
07-20106-50
07-30109-01
07-30339-00
07-30220-01
07-30221-03
07-30331-00
07-30182-02
180R, 1/4W, ±5%
390R, 1/4W, ±1%
390R, 1/6W, ±1%
412R, 1/4W, ±1%
560R, 1/6W, ±1%
750R, 1/4W, ±1%
1K5, 1/6W, ±1%
2K, 1/4W, ±5%
2K2, 1/4W, ±5%
3K3, 1/4W, ±5%
51K, 1/6W, ±5%
10M, 1/6W, ±5%
1R, 1W, ±5%
3R3, 1/2W, ±5%
22¡, 1W ±5%
220¡/2W 5%
330R, 1/2W, ±5%
1K8, 2W, FP, ±5%
07-30332-12
3K3, 2W, FP, ±5%
07-50100-10
07-50100-01
07-50330-00
07-50820-02
07-50151-00
07-40687-03
INDUCTORS
08-01005-00
POTS
10¡, 1/4W, ±5%
10R, 1W, FS, ±5%
33R, 1/2W, ±5%, FS
82R, 1W, FS, ±5%
150R, 1/2W, ±5%
0.068R, 3W, CE, ±5%
27
0.5uH
VR301, VR302
VR12, VR22
VR3
VR304, VR303
RT31, RT32
RT33
RT34
S41
SW31
RL31, RL32, RL33, RL34,
RL35, RL36, RL37,
RL38,RL39
RL12/1
09-02101-00
09-02201-02
09-02103-00
09-02303-00
09-01103-01
09-01203-01
09-01203-03
SWITCHS
11-05202-02
11-02202-02
RELAYS
SK-22F03G7
SPUN190700
12-02101-02
JRC-27F/012/S
12-01101-02
CONNECTERS
F1AA012V
MAIN BOARD--CB58
14-32501-00
MAIN BOARD--CB52 CB54
14-32502-00
R-OUT
14-32502-01
L-OUT
14-32502-02
TP1, TP2, TP3, TP4, TP10,
TP11
CB35
CB45
CB47
CB34
CB31
RCA31,RCA32,RCA34
RCA33
100R
200R
10K
30K
RK163121A2CA 10KAx2
RK16812MG 20KBx2
RK163121A10D 20KMN
VH 3.96A-2Y plug, 16AWG,
UL1015#,black,130mm length.
VH 3.96A-2Y plug, 16AWG,
UL1015# red and white,130mm
length.
UL 2468 , 16AWG, blue and white.
155mm length.
UL 2468 ˈ16AWGˈblue and red
DŽ100mm length
13-10001-00
Test-1®
13-22503-00
13-22505-00
13-22507-00
13-22509-00
13-22510-00
17-01004-00
17-01006-00
XHB2.5A-3A
XHB2.5A-5A
XHB2.5A-7A
XHB2.5A-9A
XHB2.5A-10A
4 holes red and white, gilt
6 holes red and white, gilt
ST-323B-04
CKK-3.5-02-3P
PHONEJACK2
C VERSION
AH VERSION
C VERSION
AH VERSION
HS4-C320-B009V1-P003
HS4-C320-B009V1-P007
HS4-C320-B009V1-M024
HS4-C320-B009V1-M025
C VERSION
AH VERSION
HS4-C320-B009V1-P004
HS4-C320-B009V1-P008
HS4-C320-B009V1-M024
HS4-C320-B009V1-M025
HS4-C320-B009V1-M015 B
HS4-C320-B009V1-M017
PHONE2
17-02001-04
PHONE1
Binding Post Assy
Binding Post Assy
Binding Post(Red)
Binding Post(Red)
Binding Post(Red)
BDP CAP(Red)
Shaft
Binding Post
Binding Post(Black)
Binding Post(Black)
Binding Post(Black)
BDP Cap(Black)
Shaft
Binding Post
BDP SUPPORT
BDP PIN
17-02002-00
02-03001-20
02-03001-10
17-03002-01
17-03002-11
73-001003-0
73-001005-0
69-001001-0
69-001002-0
17-03002-02
17-03002-12
73-001004-0
73-001006-0
69-001001-0
69-001002-0
66-001006-1
69-001010-0
LINKS
28
J3, J7, J28, J29, J38, J42,
J46, J49, J50, J56, J57,
J58, J59, J65, J88, J93,
J94, J95, 101, J102, J105,
J106, J107, J108, J110,
J119, J120, J121, J126,
J127, J128, J129, J130,
J131, J135, J138, J139,
J140, J141, J150, J151,
J152, J154, J155, J159,
J160, J161, J162, J163,
J172, J174, J175, J176,
J183, J184, J186, J187,
J197, J198, J199, J200,
J205
21-06000-00
L=5mm
J9, J10, J11, J13, J25, J26,
J32, J35, J36, J37, J39,
J40, J41, J44, J45, J47,
J48, J53, J62, J63, J64,
J67, J73, J99, J100, J104,
J117, J125, J143, J146,
J147, J164, J165, J166,
J168, J169, J170, J173,
J185, J192, J202, J203,
J204, J207
21-06000-00
L=7.5mm
21-06000-00
L=10mm
21-06000-00
L=12.5mm
21-06000-00
L=15mm
21-06000-00
L=18mm
21-06000-00
L=20mm
21-06000-00
L=22.5mm
21-06000-00
L=25mm
J4, J43, J51, J52, J66, J87,
J89, J90, J91, J96, J111,
J113, J118, J122, J171,
J179, J180, J190, J201
J12, J27, J61, J68, J69,
J72, J116, J123, J124,
J133, J134, J136, J137,
J142, J145, J149, J156,
J157, J158, J178, J191
J30, J31, J54, J55, J80,
J132, J181, J182, J188,
J189, J193
J8, J14, J15, J16, J17, J18,
J19, J20, J21, J33, J34,
J60, J76, J82, J112, J206
J22, J23, J24, J75, J81,
J83, J92, J97, J98, J103,
J109, J144, J153, J195,
J196
J74, J114, J115
J70, J71, J77, J78, J84,
J85, J86, J177
J2, J5
J79
J167
J1, J6, J148
PCB-6:OUT MODULE ; PCB-7: IN MODULE
CIRCUIT NO.
Q61, Q62
Q63, Q65
Q64, Q66
Q67, Q68
D61, D62, D63, D64
C63, C64,
C611(IN MODULE)
C611(OUT MODULE)
C69, C610
C61, C62
21-10750-00
L=7.5 (thick links)
21-10101-00
L=10 (thick links)
21-10201-00
L=20 (thick links)
21-10251-00
L=25 (thick links)
Line Out: 01-32560-02 and Line In: 01-32560-01
PART NO.
DESCRIPTIONS
TRANSISTORS
31-00170-00
2SK170
31-00970-00
2SA970
31-00647-00
2SB647A
31-00667-00
2SD667A
DIODES
33-44148-00
1N4148
CAPACITORS
05-22012-01
22p, 100V, ±10%
05-43012-01
43p, 100V, ±10%
05-75012-00
75p, 100V, ±10%
05-10151-00
100p, 50V, ±10%
05-22151-00
220p, 50V, ±20%
29
C65, C66, C67, C68
R617, R618, R619, R620
R615, R616
R61, R62
R69, R610
R67, R68, R611, R612
R613, R614
R621
R63, R64
24-10461-00
RESISTORS
07-20100-50
07-20330-50
07-20221-50
07-24300-50
07-20102-50
07-20103-50
07-20303-51
07-20105-50
10¡, 1/6W, ±5%
33¡, 1/6W, ±5%
220¡, 1/6W, ±5%
430¡, 1/6W, ±1%
1K¡, 1/6W, ±5%
10K¡, 1/6W, ±5%
30K¡, 1/4W, ±5%
1M¡, 1/6W, ±5%
S006
CONNECTER
13-12509-01
CZ61
21-06000-00
L=5
PART NO.
DESCRIPTION
J61
PCB-4: AMP MODULE L SMD
CIRCUIT NO.
01-32520-01
Q26
Q27
Q22, Q25, R202, Q204
Q23, Q24, Q201, Q203
Q28
Q29
D23, D24, D25, D26
R254, R255
R215, R216
R249
R203, R206, R219, R220
R211, R212, R259
R269
R29, R201, R205, R210
R223
R221, R222
R202, R204
C28, C29
C22, C224
C23, C24
C203, C204
L22
S006
PCB-5: AMP MODULE R SMD 01-32520-02
CIRCUIT NO.
Q16
Q17
Q12, Q15, Q102, Q104
Q13, Q14, Q101, Q103
Q18
Q19
D13, D14, D15, D16
R154, R155
R115, R116
R149
R103, R106, R119, R120
R111, R112, R159
0.1uF, 63V, ±20%
TRANSISTORS
31-01015-01
31-01815-01
31-01312-00
31-03324-00
31-00647-00
31-00667-00
DIODES
33-44148-11
RESISTORS
07-90100-01
07-91509-01
07-96809-01
07-98209-01
07-91000-01
07-93300-01
07-93902-01
07-94702-01
07-91003-01
07-92203-01
CAPACITORS
26-39051-01
26-10251-11
06-10031-02
06-22011-05
INDUCTORS
08-04101-00
CONNECTER
13-12508-11
PART NO.
TRANSISTORS
31-01015-01
31-01815-01
31-01312-00
31-03324-00
31-00647-00
31-00667-00
DIODES
33-44148-11
RESISTORS
07-90100-01
07-91509-01
07-96809-01
07-98209-01
07-91000-01
30
2SA1015
2SC1815
2SA1312-GR
2SC3324-GR
2SB647A
2SD667A
LL4148
10¡, ±5%
15¡, ±1%
68¡, ±1%
82¡, ±1%
100¡, ±1%
330¡, ±1%
39K¡, ±1%
47K¡, ±1%
100K¡, ±1%
220K¡, ±1%
39pF, 50V, ±5%
1nF, 50V, ±5%
VSS, 10uF, 35V, ±20%
VSS, 22uF, 16V, ±20%
100uH
CZ21
DESCRIPTION
2SA1015
2SC1815
2SA1312-GR
2SC3324-GR
2SB647A
2SD667A
LL4148
10¡, ±5%
15¡, ±1%
68¡, ±1%
82¡, ±1%
100¡, ±1%
R169
R19, R101, R105, R110
R123
R121, R122
R102, R104
C18, C19
C12, C124
C13, C14
C103, C104
L12
CZ11
PCB-8: STANDBY BOARD
CIRCUIT NO.
D717
S78
CB73———CZ73
Q59, Q510, Q517, Q519
Q518, Q520
D513
C54
C53
!
Ƹ
!
Ƹ
!
Ƹ
!
Ƹ
C51, C52
C524
C523
C517, C518
C517, C518
R561, R565
R532
R558, R559, R560, R562
R534
R566
R544, R563, R564
R567
R533
R531
F51, F52, F53, F54
F55
F51, F52, F53, F54
330¡, ±1%
39K¡, ±1%
47K¡, ±1%
100K¡, ±1%
220K¡, ±1%
PART NO.
DIODES
33-50525-00
SWITCHS
11-04101-10
CONNECTER
DESCRIPTION
14-32505-10
PCB-2: POWER BOARD
CIRCUIT NO.
D56
D51, D55
D531, D532
07-93300-01
07-93902-01
07-94702-01
07-91003-01
07-92203-01
CAPACITORS
26-39051-01
26-10251-11
06-10031-02
06-22011-05
INDUCTORS
08-04101-00
CONNECTER
13-12508-11
!
Ƹ
!
Ƹ
CB52, CB54, CB58
PART NO.
TRANSISTORS
31-01015-00
31-01815-00
DIODES
33-24004-02
33-24004-00
33-30142-00
33-30822-00
33-60116-00
CAPACITORS
25-47422-00
05-47242-00
78-001001-0
25-10322-00
06-22251-00
06-33251-00
06-15351-01
06-15351-02
RESISTORS
07-10101-51
07-10221-51
07-10102-51
07-10222-51
07-10472-51
07-10223-51
07-10334-51
07-10105-51
07-40507-03
FUSES
20-12632-00
20-12501-00
20-20000-00
CONNECTERS
13-23902-00
CB55, CB56, CB59
!
Ƹ
13-23903-01
CB57
!
Ƹ
13-23903-11
CB51
13-23907-10
31
39pF, 50V, ±5%
1nF, 50V, ±5%
VSS, 10uF, 35V, ±20%
VSS, 22uF, 16V, ±20%
100uH
S006
ž5 DUAL COLOR
DTSG˄P˅-24N
26AWG UL2468# white, 70mm
length
DESCRIPTION
2SA1015 GR
2SC1815 GR
1N4004
1N4004
DB104
8A/200V
TIC116D/BT151-500R
MKP62, 275V, 0.47uF 10%
MPX 275VAC 0.47uF 10%
4n7p, 400V, ±20%
811810-23
10n/250V 10%
2200u/50V 20%
3300u/50V 20%
15000u/50V 10%, two foods
15000u/50V 10%, two fods
100¡, ±5%, 1/4W
220¡, ±5%, 1/4W
1K¡, ±5%, 1/4W
2.2K¡, ±5%, 1/4W
4.7K¡, ±5%, 1/4W
22K¡, ±5%, 1/4W
330K¡, ±5%, 1/4W
1M¡, ±5%, 1/4W
0.05¡, 3W, ±5%
T6.3AL250V
T500mAL/250V
HF-004
VH 3.96A-2A
VH 3.96A-3A(delete the center
needle)
VH 3.96A-3A(delete the center
needle)
VH 3.96A-7A
CB53——CB47
J52, J57, J513, J517
J516, J520
J51
J514
J54, J58, J518
J510
J56
J515
J519
J512
PCB-3: KEY BOARD
CIRCUIT NO.
IC71
IC74, IC75
IC73
IC73
IC76
Q72, Q73, Q74, Q79, Q710,
Q711, Q712, Q713, Q714,
Q715, Q716, Q717, Q718
14-32507-10
LINKS
21-06000-00
21-06000-00
21-06000-00
21-10101-00
21-06000-00
21-06000-00
21-10151-00
21-06000-00
21-10201-00
21-06000-00
PARTS NO
ICS
03-02402-00
03-04094-00
03-04051-22
03-04051-12
03-00810-02
TRANSISTORS
31-01815-00
SCN 2.5A-7D needles,XHB 2.5A-7Y
plug. 26AWG UL2468# white,
230mm length
L=5
L=7.5
L=10
L=10
L=12.5
L=15
L=15
L=18
L=20
L=25
DESCRIPTION
24C01A/24C02(A)/24C04(A)
CD4094/HEF4094
AT89C4051-12PU
AT89C4051-12PU
TCM810MENB
2SC1815
DIODES
D710, D711, D712, D713,
D714, D715
D718
D71 ,D72, D73, D74, D76,
D77, D716
D75
Y71
C79, C710
C724, C725
C77, C714, C715, C716,
C717, C718, C719, C720,
C721
C72, C78, C711, C712
C722
C71, C723
R71
R72
R701, R703, R725, R759
R726, R727
R748, R749, R750, R751,
R752, R754, R760, R766
R741, R742, R743, R744,
R745, R746, R747, R753,
R761
R733
R702, R73, R756, R757,
R758, R762, R763, R764
R708
R730
S71, S72, S73, S74, S75,
S76, S77
33-44148-00
1N4148
33-44148-00
1N4148
33-50350-00
¶3 GREEN LED
33-50340-00
CRYSTAL
04-11102-00
CAPACITORS
05-27051-00
¶3 AMBER LED
24-10312-00
10nF, 100V, ±20%
24-10461-00
06-10111-00
100nF, 63V, ±20%
N.I.
100uF, 16V, ±20%
RESISTORS
07-10331-50
07-10471-50
07-10222-50
07-10222-51
330¡, 1/6W, ±5%
470¡, 1/6W, ±5%
2K2¡, 1/6W, ±5%
2K2¡, 1/4W, ±5%
07-10472-50
4K7¡, 1/6W, ±5%
07-10472-51
4K7¡, 1/4W, ±5%
07-10512-51
5K1¡, 1/4W, ±5%
07-10103-50
10K¡, 1/6W, ±5%
07-10103-51
07-10153-50
SWITCHS
10K¡, 1/4W, ±5%
15K¡, 1/6W, ±5%
11-04101-00
IT-1102D-1160
CONNECTERS
32
11.0592MHz, CL=15pF
27p, 50V, ±10%
N.I.
CZ71--CB34
14-32509-00
CZ72--CB31
14-32510-00
SCN 2.5A-9D needle,XHB 2.5A-9Y
plug. 26AWG UL2468#, white ,
400mm length
SCN 2.5A-10D needle,XHB 2.5A10Y plug. 26AWG UL2468#, white ,
430mm length
LINKS
J71, J72, J73, J74, J75,
J79, J710, J716, J733,
J735, J745, J746, J747,
J749, J753, J794
J76, J77, J78, J715, J717,
J718, J727, J738, J740,
J742, J744, J752, J793
J713, J720, J729, J734,
J737, J743, J750
J711, J719, J726, J728,
J730, J731, J732, J776,
J792
J712, J724, J739
J714, J748
J721, J722, J723, J725,
J736, J741
PCB-9: IPOD BOARD
CIRCUIT NO.
21-06000-00
L=5
21-06000-00
L=7.5
21-06000-00
L=10
21-06000-00
L=12.5
21-06000-00
21-06000-00
L=15
L=18
21-06000-00
L=20
PHONE71
TP701--front panel
PART NO.
DIODES
33-50350-00
CAPACITORS
05-10151-01
24-10461-00
RESISTORS
07-10100-50
CONNECTER
17-02001-02
14-32501-12
CZ75——CB35
14-32503-11
CB74——CZ74
14-32504-10
D719
C758, C759
C760
R766
PCB-10: HEADPHONE BOARD
CIRCUIT NO.
PART NO.
RESISTORS
07-30101-04
CONNECTER
R454, R455
CZ45--CB45
14-32505-01
CZ45
13-22505-00
LINKS
21-06000-00
J41
PCB-11: IR BOARD
CIRCUIT NO.
PART NO.
ICS
03-00038-40
CONNECTER
IC72
CZ72--CB72
14-32503-10
OTHERS
CIRCUIT NO.
C VERSION
AH VERSION
Busbar
Heatsink (SMALL1)
!
Ƹ
!
Ƹ
PART NO.
TRANSFORMER
18-32515-20
18-32515-10
METAL PARTS
69-065001-0
70-065001-0
33
DESCRIPTION
¶3 GREEN LED
100p, 50V, ±10%
0.1uF, 63V, ±20%
10¡, 1/6W, ±5%
SCJ340R0GBS0B00
1007#, 24AWG, black, 35mm
length
SCN 2.5A-3D needles,XHB 2.5A-3Y
plugDŽUL1691, 24AWG/26AWG,
white/red/black, 675mm length.
SCN 2.5A-4D needles. 26AWG
UL2468# ,red/white, 70mm length.
DESCRIPTION
100¡ 2W ±5%
XHB 2.5A-5Y plug,26AWG
UL2468# white, 410mm length
XHB2.5A-5A
L=5mm
DESCRIPTION
HS0038B4
SCN 2.5A-3D needles˗26AWG
UL2468# ,red/whiteˈ60mm length
DESCRIPTION
TD-230-0150G
TD-120-0150G
T2Y2 T=1mm
ALU 6063 BLACK
Heatsink (SMALL2)
Machine Screw
Machine Screw
Nut
RIVET
!
Ƹ
14-32502-23
!
Ƹ
14-32502-33
!
Ƹ
!
Ƹ
!
Ƹ
!
Ƹ
!
Ƹ
15-02251-20
15-10121-10
15-02251-30
17-07002-10
11-01101-03
NOTES:
AH
70-065002-0
61-022510-5
61-022514-5
62-010202-5
61-382003-5
CONNECTERS
VH 3.96A-3Y(delete
center needle) plug.
18AWG UL1672#,
red/blue,180mm
length.
VH3.96A-3Y(delete
center needle)
plug,18AWG
UL1672# .
red/blue,160mm
length.
WB01HS-001
WB05HS-001
2GTJ1
JY0647A
RF-1003-BB2, 10A
250V, TV-5
C
TRANSFORMER
TD-120-0150L
TD-230-0150C
AC CORE
WB05HS-001
WB01HS-001
34
ALU 6063 BLACK
MB2.5×10
MB2.5×14
M2.5
GB975-86-2.5×3
CB59——AC OUTLET(AH)
CB56——POWER SWTICH
AC CORD˄C˅
AC CORD˄AH˅
AC CORD˄CCC˅
AC Outlets(AH)
SW52
EXPLODED VIEW
T001
S011
S010
C013
C012
C011
S011
S012
S010
C010
R004
C009
S012
C007
R002
S013
R001
C008
S009
R003
R005
S005
R006
S006
F017
F002
F018
S002
S002
S001
C006
F014
F011
F001
S002
S002
F020
S001
S001
S004
S007
S001
F016
F012
F003
C005
S001
C014
S002
F004
C001
S008
F011
S007
F006
S001
C002
F013
F014
C003
F010
F009
C004
F007
F008
S001
S003
35
S001
EXPLODED VIEW PARTS LIST
REF.NO
PART NO.
DESCRIPTION
C001
66-065001-0
Chassis
C002
66-001004-1
Base Cover
C003
75-010004-0
C004
C005
Qty.
PART NO.
DESCRIPTION
Qty.
F016
01-32503-00
KEY BOARD ASSY
1
1
F017
74-065001-0
Power Button
1
Foot
4
F018
92-048001-0
Spring For Button
1
78-001002-0
Foot Pad
4
F019
01-32508-00
Standby Board Assy
1
01-32501-10
Main Board Assy(AH)
1
F020
01-32504-00
Phone Board Assy
1
01-32501-20
Main Board Assy(C)
1
01-32505-10
Power PCB (AH)
1
01-32505-20
Power PCB (C)
1
C007
70-065003-0
Heatsink
1
R001
67-065001-0
Rear PanelAH
1
C008
66-001009-0
Clamper
1
67-065002-0
Rear PanelC
1
C009
66-001010-0
Transformer Bracket
1
R002
11-01101-03
Rocker Switch
1
C010
67-003006-0
Shielding Box
1
R003
17-07002-10
AC OutletAH
1
C011
18-32515-10
Transformer(AH)
1
R004
84-001002-0
Relief Bushing
1
18-32515-20
Transformer(C)
1
R005
15-02251-20
AC CORDC
1
C012
66-001008-0
Metal Disc
1
15-10121-10
AC CORDAH
1
C013
94-001004-2
Transformer Label
1
R006
30-63200-00
Shorting Plug
2
C014
75-065001-0
PCB Spacer
1
T001
67-065004-0
Top cover
1
C006
1
REF.NO
F001
77-065002-0
Fascia
1
F002
66-065002-0
Subfascia
1
F003
77-001007-1
Power Button Bezel
1
F004
77-065001-0
Input Button Lozenge
1
S001
61-023106-0
Self Taping Screw STB3X6
38
F005
74-001001-1
Tone Button
1
S002
61-023208-0
Self Taping Screw BTB3X8
21
Self Taping Screw STB3X8
4
F006
73-014001-1
Tone Knob
3
S003
61-023108-0
F007
73-014002-1
Volume Knob
1
S004
61-224516-0
Machine screw HM4×16
2
F008
77-001001-1
Tone Control Lozenge
1
S005
63-010410-0
Plain Washer 4
2
F009
76-003001-0
LED Lens
2
S006
63-020411-0
Spring Washer 4
2
F010
76-001001-0
IR Lens
1
S007
61-022206-6
Self Taping Screw BTB2.6X6
13
F011
76-001002-0
LED Lens
8
S008
61-022204-6
Self Taping Screw BTB2.6×4
2
F012
74-047001-0
Trio Buttons
1
S009
64-108050-0
Bolt M8×50
1
F013
74-001008-0
Quad Buttons
1
S010
63-020820-0
Spring Washer 8
2
F014
01-32509-00
IPOD BOARD PCB
1
S011
62-010802-0
Nut M8
2
F015
01-32507-00
IR BOARD ASSY
1
S012
61-084108-0
Self Taping Screw STPW4×8
2
S013
61-023206-0
Self Taping Screw BTB3X6
4
36
PROTECT IC CHANGE
R10
100k
Q10
2SA1015GR
D13
4.7V
R12
10k
R21
C11
100N
Q11
220k
2SA1015GR
R13
10k
R17
100k
D10
1N4148
R14
22k
Q14
2SC1815GR
R28
10k
R11
100k
R26
10k
R16
10k
R27
10k
Q17
2SC1815GR
D12
1N4148
Q18
2SC1815GR
R18
100k
Q15
2SC1815GR
C10
1N
R23
56K
J10
CON8
1
2
3
4
5
6
7
8
Protect Module
R24
180k
Q16
2SC1815GR
Q19
C12
2SC1815 0.22UF
R19
56k
R22
820k
Q12
2SA1015GR
R15
10K
Q13
2SC1815GR
R20
220k
This Protect Module replaces Protection IC 44
Remove part below:
R442 Remove 56K Ohm resistor
Replace and change orientation the part below:
C421 From 4.7uF/50V to 0.47uF/50V.
Reverse mount the new C421.
Change orientation for the part below:
D513 Reverse mount the 1N4004
37
R25
4.7k
STEREO
AMPLIFIER
NAD ELECTRONICS LTD
TORONTO
37
SERVICE MANUAL C 325BEE
© NAD 2006