NAD C-325-BEE Service manual

NAD

1

SERVICE MANUAL

C 325BEE

STEREO

C 325BEE

STEREO

AMPLIFIER

AMPLIFIER

TABLE OF CONTENTS

2

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

PRODUCT SAFETY SERVICING GUIDELINES

3

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.

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

AFTER THE ORIGINAL SERVICE PROBLEM HAS BEEN
CORRECTED. A CHECK SHOULD BE MADE OF THE
FOLLOWING.

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.

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.

SUBJECT : GRAPHIC SYMBOLS

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.

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.

SERVICING PRECAUTIONS

4

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:

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.

2. Do not spray chemicals on or near this A/V Receiver or any of its
assemblies.

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. Do not defeat any plug/socket B+ voltage interlocks with which
instruments covered by this service manual might be equipped.

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.

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.

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.

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.

3. Use only a grounded-tip soldering iron to solder or unsolder ES
devices.

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.

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).

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.

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

6

POWER AMPLIFIER SECTION
STEREO MODE

CONTINUOUS AVERAGE POWER 50 W (17 dBW)
OUTPUT INTO 8 OHMS OR 4 OHMS

(Min. power per channel, 20 Hz – 20 kHz,
with no more than rated distortion)

Rated Distortion 0.03%
(THD 20 Hz – 20 kHz)

Clipping power 68 W
(maximum continuous power per channel 4 and 8).

IHF dynamic headroom: at 8 ohms + 3.4 dB

at 4 ohms + 5.0 dB

IHF dynamic power
(maximum short term power per channel)

8 ohms: 110 W (20.4 dBW)
4 ohms: 160 W (22.0 dBW)
2 ohms: 210 W (23.2 dBW)

Damping factor > 100
(ref. 8 ohms 1 kHz)

Input Impedance R = 20 kohms

C = 1 nF

Input sensitivity (for rated output into 8 ohms) 630 mV

Voltage gain 29 dB

Frequency response 20 Hz – 20 kHz

Signal / Noise ratio, A-weighted 100 dB ref. 1 W

THD + Noise < 0.03%
(Total Harmonic Distortion, 20 Hz – 20 kHz,
from 250 mW to rated output)

SMPTE I.M. < 0.01%
(Intermodulation Distortion, 60 Hz + 7 kHz, 4:1,
from 250 mW to rated output)

0.2 dB

117 dB ref. 50 W

IHF I.M. < 0.01%
(CCIF IM Distortion, 19 + 20 kHz at rated output)

Headphones Output Impedance 220 ohms

PREAMPLIFIER SECTION

7

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 6 V

Signal / Noise ratio, A-weighted 93.0 dB ref. 1W
(from CD Input to Speakers Output, Volume Setting
for 500mV in , 8ohms 1W out)
Signal to noise ratio preamp out, IHF “A” weighted 106 dB re 500mV

Frequency response, 20 Hz – 20 kHz < +/-0.1 dB (tone defeat on)
< +/-0.5 dB (tone defeat off)
THD + Noise, SMPTE IM < 0.01% at 5 V out

LINE LEVEL OUTPUTS

Pre-amp output impedance 80 ohms

Tape output impedance Source Z + 1kohms

Maximum output level pre-amp out : > 12 V
Tape-out : > 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 6.5 kg ( 14.3 Ib)
Shipping Weight 8 kg ( 17.6 Ib)

×

DIMENSION (W×H×D) 435

100 × 290MM

WIRING DIAGRAM

8

AC POWER PLUG

AC OUTLET

T401(TRANSFORMER)

POWER SWITCH

CB45

CB47

Q215

P1-L

-46V WHITE
+46V RED

P2-L

Q214

P5-GND

Q114

P4-R

+46V RED

-46V WHITE

P3-R

Q115

MAIN BOARD

CB21

CB11

CB32

CB33

CB35

CB31

CB34

AMP-SMD-R BOARD

CZ11

AMP-SMD-L BOARD

CZ21

IN MODULE BOARD

01-32560-01

CB61

OUT MODULE BOARD

01-32560-02

CB61

CB51

CB55

POWER BOARD

CB58

CB52

CB53

CB54

CZ45

HEADPHONE BOARD

Ipod SOCKET BOARD

CZ75

CZ74

CZ72

IR BOARD

CZ73

STANDBY BOARD

CB73

CB74

S75

S74

KEY BOARD

S76

S71

S72

S73

S77

CZ72_1

CZ71

CB72

CB56

CB59

CB57

DISC L

9

DISC R

VIDEO L

VIDEO R

AUX L

AUX R

TUNER L

TUNER R

TAPE1 IN L

TAPE1 IN R

TAPE1 OUT L

TAPE1 OUT R

TAPE2 IN L

TAPE2 IN R

TAPE2 OUT L

TAPE2 OUT R

11,12,13,14)

RT31

RT32

RT34

SW31

SCR

CONTROL

CIRCUIT

TRIG I-V

ISC CIRCUIT

(IC43,TL082D)

(4,5,6,7

IC74
CD4094

BASS

TREBLE

BALANCE

TONE DEFEAT

MIRROR
CURRENT
SOURCE

CIRCUIT

R467

POSISTOR

(80 DEGREE C)

01-32560-02

(IC44,UPC1237HA)

R439

POSISTOR

(90 DEGREE C)

INPUT SELECTION

CIRCUIT (BY RELAY)

MP L

MP R

CD L

CD R

01-32560-01

IN

˄˅

AMP CIRCUIT

PREAPM MODULE

Relay Switchs

RL12/2

Speaker R

Speaker L

F1AA012V

92

IC 75
CD4094

OUT

˄˅

AMP CIRCUIT

PREAPM MODULE

MUTE

CONTROL

CIRUIT

PROTECTION

CIRCUIT

VOL+

5

4

VOL-

VOLUME CONTROL

CIRCUIT (REMOTE)

Q31

MUTE

Q32

MUTE

POWER AMP

CIRCUIT L

PRE-OUT L

PRE-OUT R

S41

SOFT CLIPPING

CONTROL CIRCUIT

RT33

VOLUME

CONTROL

BLOCK DIAGRAM

MAIN IN R

MCU

MCU

(1,2,3)

(1,3)

HEADPHONE

JK41

POWER AMP

CIRCUIT R

MAIN IN L

4

10

3

Vss

SDA5SCL6NC7Vcc

CIRCUIT

IR OUT

+5V

3

2

27pF

IC72

1

IS1U60L

C79

C710

27pF

IC71

24C01

NC1NC2NC

8

+5V

Y71

11.0592M

IR Flash

Mute Flash

Remote Mute Flash

IP
C
TA1
DI
TU
TA2
AU
VI

TO RELAY CONTROL CIRCUITTO VOL CONTROL CIRCUIT

CIRCUIT

IR IN

IC75

10

9

11
12
13
14

7
6
5
4

10

9

11
12
13
14

7
6
5
4

4094

IC74

4094

8

QS

VEE

QS

Q8
Q7
Q6

16

Q5

VCC

15

Q4

OE

+5V

3

Q3

CLK

2

Q2

D

1

Q1

STR

10

5

6

7

9

P3.48P3.5

GND

P3.3(INT1)

P3.2(INTO)

8

QS

VEE

QS

Q8
Q7
Q6

16

Q5

VCC

15

Q4

OE

+5V

3

Q3

CLK

2

Q2

D

1

Q1

STR

P3.711(AIN0)P1.012(AIN1)P1.113P1.214P1.215P1.416P1.517P1.618P1.719VCC

3

XTAL24XTAL1

Input selection

Keys

P3.0(RXD)2P3.1(TXD)

1

RST/VPP

20

IC73
AT89C4051

+5V

2

MICROPROCESSOR CONNECTION DIAGRAM

13

IC76
TCM810MEND

+5V

PHONE71
Ipod IN

Circuit

18V Power Supply

Sandby control line

10k

10k

10K

2K2

Q717

+5V

CD4094

11

KEY BOARD IC74&IC75

PIN CONFIGURATION

1

STROBE

2

DATA

3

CLK

4

Q1

5

Q2

6

Q3

7

Q4

89

VSS

16

15

14

13

12

11

10

VDD

OUTPUT ENABLE

Q5

Q6

Q7

Q8

Q'S

QS

2

CLOCK

*

3

STROBE

*

1

OUTPUT ENABLE

*

15

CL

p

Q

D

1

CL
CL

TR

CL

CL

TR

LATCH

TR

1

VDD

CL
CL

TR

3 - STSTE

1

p

4

Q1

Q

D

2

TR

DQ

CL
CL

n

8

CL

Q

CL

CL

STAGES

TR

VSS

3- 7

TR

LATCH

2

TR

3-

STATE

2

n

n

5

Q2

6

7121314

Q3 Q4 Q5 Q6 Q7

TR

LATCH

TR

8

3

STATE

8

11

Q8

p
n

SERIAL

OUT

10

Q'S

SERIAL

OUT

10

QS

*VDD

* ALLINPUTS
PROTECTED BY
CMOS PROTECTION
NETWORK

VSS

TL082D

MAIN BOARD IC41&IC42&IC43

OUTPUT A

INVERTING INPUT A

NON-INVERTING INPUT A

1

2

A

-

3

++

45

V-

8

V+

7

B

OUTPUT B

-

6

INVERTING INPUT B

NON-INVERTING INPUT B

uPC1237HA

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MAIN BOARD: IC44

8PIN PLASTIC SLIM SIP

1

8

ICS BLOCK DIAGRAM

VCC

78

1

2

Overload Detector

Output Offset Detector

Flip--Flop

VCC ON

MUTE

AC---OFF detector

Relay driver

6

5

GND

Switch for latch/automatic --reset

43

24C01

13

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Pin Configuration

PDIP/SOIC

RST/VPP

(RXD) P3.0

(TXD) P3.1

XTAL2

XTAL1

( INT0 ) P3.2

( INT1 ) P3.3

(TO) P3.4

(T1) P3.5

GND

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

VCC

P1.7

P1.6

P1.5

P1.4

P1.3

P1.2

P1.1 (AIN1)

P1.0 (AIN0)

P3.7

Block Diagram

Vcc

GND

REGISTER

RAM ADDR.
REGISTER

B

ACC

TMP2

RMA

PSW

ALU

TMP1

INTERRUPT SERIAL PORT

AND TIMER BLOCKS

STACK

POINTER

FLASH

PROGRAM
ADDRESS
REGISTER

BUFFER

PC

INCREMENTER

PROGRAM
COUNTER

RST

TIMING

AND

CONTROL

OSC

INSTRUCTION

REGISTER

ANALOG
COMPARATOR

+

-

PORT 1
LATCH

PORT 1 DRIVERS

PORT 3

LATCH

PORT 3 DRIVERS

P 1.0 - P 1.7 P 3.0 - P 3.5 P 3.7

DPTR

ALIGNMENT PROCEDURES

15

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

TP1

VR22

TP2

TP3

MAIN BOARD

TP10 TP11

VR3

VR12

TP4

VR302

VR301

SCHEMATICS DIAGRAM

16

PREAMP CIRCUIT Vm1.2
PCB-1:MAIN BOARD Vm2.0

RCA31A

RCA31C

CD

RCA32A

RCA32C

RCA33A

RCA33C

RCA33E

RCA34A

RCA34C

RCA31B

RCA31D

CD

RCA32B

RCA32D

RCA33B

RCA33D

RCA33F

RCA34B

RCA34D

CB35

CON3

R31

470
R349

1M
R33

470
R351

1M
R35

470
R353

1M
R37

470
R355

1M
R39

470
R357

1M
R311

470
R337

1M
R313

470
R338

1M
R315

470
R339

1M
R317

470

R393

470
R394

1M

3
2
1

R396

470
R395

1M
R32

470
R350

1M
R34

470
R352

1M
R36

470
R354

1M
R38

470
R356

1M
R310

470
R358

1M
R312

470
R341

1M
R314

470
R342

1M
R316

470
R343

1M
R318

470

DISC

VIDEO

AUX

TUNER

TAPE2

REC2

TAPE1

REC1

Ipod-L

Ipod-R

DISC

VIDEO

AUX

TUNER

TAPE2

REC2

TAPE1

REC1

C314
100p

C31
100p

C33
100p

C35
100p

C37
100p

C39
100p

C311
100p

C313
100p

C315
100p

C317
100p

C304
100P

C305
100P

C32
100p

C34
100p

C36
100p

C38
100p

C310
100p

C312
100p

C316
100p

C318
100p

RL31B

RL32B

RL33B

RL34B

RL35B

RL36B

RL37B

RL38B

RL39B

RL39A

RL31A

RL32A

RL33A

RL34A

RL35A

RL36A

RL37A

RL38A

R345
220K

MF

LOW NOISE AMP

IN MODULE

R346
220K

MF

L-CH INPUTS

C319

0.1u 10%

1
2
3

CB32

4
5
6
7
8
9

R-CH INPUTS

C320

0.1u 10%

C324
47u/25

+18V

-18V

C323
47u/25

C325BEE RELAY CONTROL CIR.

D37

D38

D39

D310

D311

R407
1K

R361

30K

R362

30K

1N4148

N.I.

N.I.

Q403

A1015

Q404
C1815

TUNER

C335
N.I.

C336
N.I.

1N4148

5%,63V

C331 0.22u C333

1u,63V,5%

63V

C332

0.22u 5%

C334

1u,63V,5%

D312

R329
1K5 MF

RT32A

R331
390 MF

R330
1K5 MF

RT32B

BASS POT

10KA

R332
390 MF

R404
10K

R405
1K

BASS POT

10KA

LOW NOISE AMP

OUT MODULE

1N4148

1N4148

1N4148

1N4148

RL31C RL32C RL33C RL34C RL35C RL36C RL37C RL38C

DISC

CD

VIDEO

AUX

R391 560 1%

R392 560 1%

TONE DEFEAT SW

C301

10uF/50V

C325

47u/25

C321

0.1U

R319

N.I.

TONE DEFEAT SW

C326
47u/25

C322

0.1U

R320

N.I.

C325BEE TONE CONTROL CIR.

R325
390 MF

R321
3K3 MF

C327

63V

22n 5%

R363

51K

RT31A

TREBLE POTTREBLE POT

10KA

R323

750 MF

3K3 MF

R322

R324

750 MF

R402
10K

Q401

A1015

R403
1K

Q402

C1815

C329

0.1u 5%
63V

R327

180 MF

C328
22n 5%

C330

0.1u 5%
63V

R328

180 MF

OFF
ON

4u7/25V

SW31A

1

OFF

2
3

ON

R326
390 MF

R364
51K

RT31B

10KA

SW31B

4
5
6

+5V

VOLUME CONROL

RT33C

20KB

- +

M

C417

R406
1K

C303
220p

VR303

VR304

C418

4u7/25V

C302
220p

D313

1N4148

TAP2

RT33A

RT34A

CB33

RT34B

RT33B
20KB
VOLUME POT

VOLUME POT

20KB

20K MN

BALANCE POT BALANCE POT

20K MN

R448

100K

C434
22n/63V

D316

1N4148

TAP1

BY MOTOR

+18V

1
2
3
4
5
6
7
8
9

BY MOTOR

+18V

Q411

-18V

R451
330K

C337

0.1U

C339
1u/16

C338

0.1u

C340
1u/16

+12V

R489

100K

A1015

R435
390k

RL39C

-46V

CB31

TAP1

10

DISC

9

TAP2

8

TUNER

7

AUX

6

VIDEO

5

CD

4

+12V
IROUT
IRIN

220p

12V TRIG

Q31
K363

R389
10M

D315
1N4148

D314
N.I.

R390
10M

Q32
K363

+12V+12V

-46V-46V
+5V
+18V

-18V
Protection
Standby
Soft Cliping

Ipod

3
2
1

TO CZ72

PHONE1B

IR IN

PHONE1A

IR OUT

PHONE2

+12V Trigger

R347

C363

100K

100pF

R348

C364

100K

100pF

CB34

1
2
3
4
5
6
7
8
9

TO CZ71

RCA35A

L PRE-OUT

RCA35B

R PRE-OUT

+12V

+5V

RI510K

RI1 10K

RI6

VR301

100

R385

1.8

R386

1.8

VR302

100

D423

1N4148

10K

RI7

C362

330,5%

10n

RI3
33

R2
10

C3 0.1uF

R335

68

C343

220p

R333

4.7K

C344

R336

68

R334

4.7K

+5V

+18V

-18V

Soft Cliping
REMOTE MUTE
Standby
Protection

+5V

VOL­VOL+

QI1

2SC1815

Ipod

+5V

RI2

RI4

1K

4.7K

QI2

2SA1015

C345

0.1uF

C341

47u/25

C349 N.I.

R387

20K

R383

560 1%

R384

560 1%

R388

20k

C350 N.I.

C346 0.1uF

C342

47u/25

R436

56K

R457

220K

PREAMP IN/OUT MODULE BOARD Vm1.2
PCB-6/7:OUT/IN MODULE BOARD Vm1.0

CZ61

+18V

1

LOUT

2

LIN-

3

LIN+

4

GND

5

RIN+

6

RIN-

7

ROUT

8

-18V

9

CON9

C68

0.1u 20%

R621 30K

C611

Note:C611 is 43pF ON "IN MODULE"

75pF ON "OUT MODULE"

R62

220
R64
1M

C62
220p

C610
100p

R68
1K

Q62

2SK170

C67

0.1u 20%

R610
430 2%

C64
22p

D63

1N4148

D64

1N4148

R614
10K

Q65
A970

R612
1K

R617

C63
22p

D61

1N4148

D62

1N4148

R613
10K

Q63
A970

R611
1K

Q67
D667

R615

33

R61810R619

Q64
B647

10

C66

Q68

0.1u 20%

D667

R616

R620

33

10

10

Q66
B647

R61

220
R63
1M

C61
220p

C69
100p

R67
1K

Q61
2SK170

C65

0.1u 20%

R69
430 2%

SCHEMATICS DIAGRAM(1/4)

17

AMP CIRCUIT Vm1.4
PCB-1:MAIN BAORD Vm2.0

+46V

-46V

RCA35D

1
2
3

S41A

RCA35C

MAIN-IN R-CH

D410

20V

OFF

S41B

ON

D411

20V

MAIN-IN L-CH

22n 10% 63V

C219

47uF/25V

C119

R158

2.2k

R258

2.2k

C12/1

+46V

+37V

Q12/1
A1015

+12V

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

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.

R427
22/1W FP

Q413
KSC2690

C419
10uF

R495
510

12V TRIG

+18V

Q414
C1815

Q423
C2240

+18V

STANDBY

R438
22K

R439
T0=90 degree C
POSISTOR

R483

270K

RL12/1
F1AA012V
O/P RELAY

5 6

3 4

1 2

D412

1N4148

R437
47K

D43
1N4148

D42
1N4148

+18V

C443

0.1uF
Q422
D667

R494
12

C446
10uF

C429

10u/25V

R477

47K

R473
43K

C426

10u/25V

D431

3.6V

R428
2K2

C49

47u/25V

C411

0.1uF

R429
5K1

C410

47u/25V

C412

0.1u

-18V

+18V

R474 1K

C430
10u/25V

R472
470K

8

6

5

IC43B
TL082D

4

R476
1K

-18V

ISC CIRCUIT

R446

R445

56K

56K

R12/2
22K

1

Q412

0V

C1815

2

0V

0V

0V

C422

330u/16V

PROTECTION CIR.

SUPPLY CIR.

D49
18V

R414
2K2
MF

STANDBY

R413
680

R412
2K

MF

7

D418
1N4148

C431
10u/25V

R490

100K

R491

100K

1N4148

+3.25V

+2.16V

8

345

R471
10K

D420

+46V

C432

0.22u

R411

680

C41

0.1uF

R410

680

C48
10u/25V

R441

4.7K

R442
56K

7

IC44
UPC1237HA

R401

4K7

D417
1N4148

C420
100u/16V

+2.0V

Q41

R45

2SC2690

C46

22p

C428
10u/25V

+18V

C45
22p

Q43
C1815

Q44
A1015

Q42
2SA1220

C425
10u/25V

2

3

220/2W FPR452

220/2W FP

R440
2K2

R443
150 1/2W FS

33/0.5W FS

C413

220u/35V

R47
680

R48

680

C414
220u/35V

R46

33 / 0.5W FS

R482
4K7

R478

100K
R479

100K

R480
3K9

R OUT

L OUT

C47
47u/25V

R49

680

D403

1N4148

R470

TP10

10K

1

IC43A
TL082D

TP11

R487

18K

R488

18K

D419
1N4148

R453

6

C421
4u7/50V

+37V

R41
680

R43

680

C43

220u/63V

C44

220u/63V

R44

680

R42
680

R493
180k

VR3
10K

+18V

CB45

CZ45

1

1

2

2

3

3

4

4

5

5

R454

100,2W

+18V

C445

100uF

C444

4700uF/16V

D430

-37V

I-V
AC DET.
ISC TRIG

+18V

D428

R469

R468

1N4148

10K

22K

Q421

C1815

R467
T0=80 degree C

BINDING POSTS

4

3

2

1

N8C320D03

JK41

PHONES SOCKET

R455
100,2W

C325BEE HEADPHONE BOARD Vm1.2
PCB-10:HEADPHONE Vm1.0

STANDBY

Protection

Soft Cliping

+5V
+18V

-18V+5V
+12V

-18V

-46V

+12V

-46V

Standby

DB104

SPKOUT

+5V

2

IC45

1

AMS1117-5.0

3

*

CB47

1
2
3
4
5
6
7

7PIN

R130

82/1W FS

R169
1M2

+18V

R154
10

C13
10u/35V

C12

1nF

R149
68,1/4 1% MF

C22

1nF

R249
68,1/4 1% MF

C14

10u/35V

R155
10

R254
10

C23
10u/35V

C24

10u/35V

R255
10

39k,MF,5%

39k,MF,5%

-18V

+18V

39k,MF,5%

39k,MF,5%

-18V

R110

R210

C11

R11

470

R12
220K

A1015

R420

36K

4
5
6

R421

36K

C1815

R21

470

R22
220K

10u/16V

C17

0.1uF/63V

Q47

Q48
C1815

10u/25V

10u/25V

R419
100

C415

C416

R417
100

Q45

A1015

C27

0.1uF/63V

C21
10u/16V

R25
22K

R418
100

R422

1.3K

R424

1.3K

R425

1.3K

R423

1.3K

R416
100

Q46

+18V

R14

100

-18V

R15
22K

SOFT CLIPING CIR.

+18V

R24

100

-18V

CZ11

CZ11

8

8

7

7

6

6

5

5

4

4

3

3

2

2

1

1

CON8

CON9

CZ21

CZ21

8

8

7

7

6

6

5

5

4

4

3

3

2

2

1

1

CON8

CON9

39K,MF,5%

R101

Q103
C3324-GR

R119

220k,MF,5%

220k,MF,5%

220k,MF,5%

220k,MF,5%

R103

R106

Q104

A1312-GR

Q203
C3324-GR

R203

R206

Q204

A1312-GR

82,MF,5%

82,MF,5%

82,MF,5%

82,MF,5%

82,MF,5%

Q16

A1015

C18

39p

Q18

2SB647

Q19

C19

2SD667

39p

Q17
C1815

R120
82,MF,5%

P/N: 01-32520-02

AMP-SMD MODULE R CHANNEL Vm1.4

PCB-5:AMP-SMD-R Vm1.0

R219
82,MF,5%

Q26

A1015

C28

39p

Q28

2SB647

Q29

C29

2SD667

39p

Q27
C1815

R220
82,MF,5%

P/N: 01-32520-01

AMP-SMD MODULE L CHANNEL Vm1.4
PCB-4:AMP-SMD-L Vm1.0

R121

100K,MF

R123

D14

1N4148

C124

R169

R221

100K,MF

R223

D24

1N4148

C224

R269 330

D13
1N4148

47K

D23
1N4148

47K

D15
1N4148

D16

1N4148

R122

100K,MF,5%

1nF

330

D25
1N4148

D26

1N4148

R222

100K,MF,5%

1nF

C103

22uF/16V

R111
100,MF,5%

Q12

A1312-GR

Q13

C3324-GR

R112

100,MF,5%

22uF/16V

22uF/16V

R211
100,MF,5%

Q22

A1312-GR

Q23

C3324-GR

R212

100,MF,5%

22uF/16V

C104

R159 100,5%

L12 100uF

C203

C204

R259 100,5%

L22 100uF

Q101

Q14
C3324-GR

R115
15

R116
15

Q15
A1312-GR

Q102

A1312-GR

R105

39k,MF,5%

39K,MF,5%

R201

Q201

Q24
C3324-GR

R215
15

R216
15

Q25
A1312-GR

Q202

A1312-GR

R205

39k,MF,5%

R102

C3324-GR

R104

R202

C3324-GR

R204

R19

R29

C15
220uF/63V

D102
1N4148

D103
1N4148

C16
220uF/63V

R131

82/1W FS

R230

82/1W FS

R269
1M2

C25
220uF/63V

D202
1N4148

D203
1N4148

C26
220uF/63V

R231

82/1W FS

R162
1K

R262
1K

D101
1N4148

R163
1K

Q117

2SA970

Q118

2SC2240

C123

0.1uF

R168
1K

D201
1N4148

R263
1K

Q217

2SA970

Q218

2SC2240

C223

0.1uF

R268
1K

POWER AMP CIR. L

3K3/2W FP

330/0.5W FP

R164

R165

10K

10K

R166
5K6

IC11

AZ431

R167
1K

POWER AMP CIR. R

R264

R265

10K

10K

R266
5K6

IC21
AZ431

R267
1K

KSA1220

Q110

Q111

KSC2690

330/0.5W

R126

R132

3K3/2W FP

R128

R124

3.3/0.5W FP

D11

4.7V

C110
47u/25V

D12

4.7V

C111
47u/25V

R125

R137

3.3/0.5W

R129

R127

R133

3K3/2W FP

3K3/2W

R226

R232

3K3/2W

3K3/2W FP

R228

330/0.5W FP

R224

3.3/0.5W FP

Q210
KSA1220

C210

47u/25V

C211

47u/25V

Q211

KSC2690

R225

R229

R233
3K3/2W FP

R237

3.3/0.5W

10

FP

330/0.5W

R227
3K3/2W

470p,100V,20%

R138

430

FS

10

470p,100V,20%

470p,100V,20%

D21

4.7V

R238

430

D22

4.7V

FS

470p,100V,20%

R142
22,MF,5%

R107

39,MF,5%

C112

R136

Q112

10

FS

KSC2690

TP3

VR12

R144

200

0.068/3W CE

C127

N.I.

R145

0.068/3W CE

Q116

KSC2690

TP4

R139
412

Q113
KSA1220

C113

R108
39,MF,5%

R143
22,MF,5%

R242
22,MF,5%

R207
39,MF,5%

C212

R236

Q212
KSC2690

FS

10

TP1

VR22

R244

200

0.068/3W CE

C227
N.I.

R245

0.068/3W CE

Q216
KSC2690

TP2

R239
412

Q213
KSA1220

C213

R208
39,MF,5%

R243
22,MF,5%

Q115

Q114
2SA1943

2SC5200

Q214
2SA1943

R147

1K

R247
1K

Q215

R148

15K

R146
1K8,1W,1%,MF

D27

1N4148

R248

15K

C220

22n 10%

63V

R246
1K8,1W,1%,MF

2SC5200

D17
1N4148

C120
22n 10%

-46V

+46V

-46V

0.1u

C215

0.1u

C114

0.1u

C115

C214

0.1u 10% 63V

R12/1
6K8

R152
22K

Q11
C1815

R156
470K

3

2

IC41A

TL082D

R157
470K

R252
22K

Q21
C1815

R256
470K

5

6

IC42B

TL082D

R257
470K

R151

10/1W FS

L11

0.5uH

R251
10/1W FS

0.5uH

R250
1/1W FP

R150
1/1W FP

L21

C118

0.1u 10% 63V

R160

48

1K,5%

R161

1K,5%

1uF,63V,5%

R260

48

1K,5%

R261

1K,5%

1uF,63V,5%

C121
1uF,63V,5%

1

C122

C218

0.1u 10% 63v

22n 10% 63V

C221
1uF,63V,5%

7

C222

-18V

+18V

-18V

+18V

P5-GND

-46V+46V

P3-RP4-R

-46V+46V

P1-LP2-L

SCHEMATICS DIAGRAM(4/4)

18

C325BEE IR BOARD Vm1.0
PCB-11:IR BOARD Vm1.0

P9

IC72

IS1U60L

SHIELDING

S78 STANDBY

RED GREEN

CZ73

1

2

12345

CB73

R71
330

+5V

+12V

R701
2K2

R766

4.7K

3 4

VCC

3

2

R72
470

C1815

Q73

C1815

1

SIGNAL

5

Q74

GND

IR RECEIVER

C325BEE STANDBY BOARD Vm1.0
PCB-8:STANDBY BOARD Vm1.0

POWER/PROTECTION IND.

D717

513AW

Q72

C1815

CZ76

R730
15K

3

1 2

D715
1N4148

D718
1N4148

CB72

CON3

PROTECTION

IPOD BAORD Vm1.0
PCB-9:IPOD BOARD Vm1.0

Ipod GREEN

R759

D719

TP701

C760

C758
PHONE71
Ipod IN

TO MAIN BOARD CB35

+5V

R703

2K2

Q717
2SC1815

R764
10K

R725
2K2

2k2

D716
GREEN

C721

Q718

10nF

C1815
R760
4k7

+5V

+12V

SOFT CLIPING

+12V

+5V

G

R

123

100p

L

CZ75

TAPE1
DISC
TAPE2
TUNER
AUX
VIDEO
CD
+12V
IR OUT
IR IN

SOFT CLIPING
REMOTE MUTE

PROTECTION

+5V
VOL­VOL+

IPOD

C759

100p

0.1uF

CZ74

CB74

123

123

4

4

CZ76

TO CB31

CZ71

TO CB34

1
2
3
4
5
6
7
8
9
10

9
8
7
6
5
4
3
2
1

+5V

C78

0.1u

IC73

20

VCC

19

P1.7

18

P1.6

17

P1.5

16

P1.4

15

P1.2

14

P1.2

13

(AIN1)P1.1

12

(AIN0)P1.0

11

D73
VIDEO

VIDEO AUX TAPE2 TUNER DISC TAPE1CD

C714

Q79

10n

C1815
R741
4K7

R749

4K7

AU

C724

C725

N.I.

C716
10n

R757
10K

R743
4K7

N.I.

S76

TAPE2

C717
10n

R744
4K7

S75

DISC

S74

TAPE1

+12V

D714

1N4148

R727
2K2

D72

D74

TUNER

C718
10n

R745
4K7

TAPE1

GREEN

Q713
C1815

R753

4K7

C

GREENGREEN GREEN GREEN

Q712
C1815

R752

4K7

DI

S77

CD

R756
10K

D76
TAPE2

Q711
C1815

R751

4K7

TU

R763
10K

P22
P21
P20

P02
P01
P00

R758
10K

+5V

D71
AUX

C715

Q710

10n

C1815
R742
4K7

R750

4K7

TA2

C719
10n

R746
4K7

S73

VIDEO

S72

TUNER

S71

AUX

TA1

R754

4K7

Q714
C1815

D77
CD
GREEN

R726

2K2

C720
10n

R747
4K7

R761

4K7

IP

C723

100uF/16V

R762

10K

R702

10K

D75
DISC

AMBER

Q715
C1815

C71

100u/16V

+5V

+5V

0.1u 20%

8

IC75
4094

10

IR BLINK

MUTING BLINK

Q716
C1815

+5V

C77
10n

IC71

1
2
3

+5V

C711

VEE

R733
5K1

NC
NC
NC
Vss4SDA

24C01

16

15

VCC

8

Vcc

7

NC

6

SCL

5

C722

N.I.

C79
27p

3

2

1

D

OE

STR

CLK

Q14Q25Q36Q47Q514Q613Q712Q811QS9QS

VOL+

VOL-

3
2
1

R73 10K

D710

1N4148
D711

1N4148

D712
1N4148

D713
1N4148

REMOTE MUTE

IR IN

IR OUT

C72

0.1uF

+5V

R708

10K

Y71

11.0592MHz

C710
27p

8

VEE

10

CVITU

IP

2

IC76

R765

TCM810MENB

N.I.

1 3

1

RST/VPP

2

P3.0(RXD)

3

P3.1(TXD)

4

XTAL2

5

XTAL1

6

P3.2(INTO)

7

P3.3(INT1)

8

P3.4

9

P3.5
GND10P3.7

AT89C4051

C712

0.1u 20%

16

3

2

15

1

IC74

D

OE

4094

STR

CLK

VCC

Q14Q25Q36Q47Q514Q613Q712Q811QS9QS

R748

4K7

TA2

TA1

DI

VI

AU

KEY BOARD Vm1.2
PCB-3:KEY BOARD Vm1.0

SCHEMATICS DIAGRAM (3/4)

19

POWER CIRCUIT Vm1.2
PCB-2:POWER BOARD Vm2.0

RED

WHITE

RED

WHITE

CB54

CB52

CB58

CB53

2
1

2
1

2
1

1
2
3
4
5
6
7

+46V

-46V

TRIG
AC DET.
I-V
+37V

-37V
~8V

0V

R531

0.05/3W 5% CE

A1015
Q510

R533

R567

1M

330K

+46V

-46V

R532
220

Q59
A1015

R534
2K2

R566

4K7

R562
1K

D531

TIC116D

15000uF/50V 10%

15000uF/50V 10%

Q519
A1015

C1815
Q520

R561

100

Q517
A1015

C517

C518

R565

100
R564

22K

D513

1N4004

Q518
C1815

R563
22K

R558
1K

D532
TIC116D

R544

22K

R560

1K
R559

1K

D55

KBU8D

NAD C325BEE POWER CIR.

!!

C52

D51
KBU8D

C523

3300u/50V

C524
2200u/50V

10n/250V

10%

C51

10n/250V

10%

+37v

D56

DB104

-37v

F51F52 F54 F53

F55

500mA/250V

6.3A/250V X4

C54

0.47uF

C53

4.7nF/400V

36.4V

36.4V

28.5V

28.5V

CB55

CZ55

3

3

2

2

1

1

CON3

CB56

1
2
3

CON3
CB59

1
2
3

CON3
CB57

3

1

CON3

CB51

1
2

0V

3
4
5

8V

6

0V

7

CON7

CZ56

1
2
3

CON3
CZ59

3
2
1

CON3
CZ57

1
2
3

CON3

CZ51

7
6
5
4
3
2
1

CON7

RED
VIO
BLK
ORG
GRY

AC POWER CORD

POWER SWIT CH

SW52

1

1

2

2

AC outlet

T401

!

(For AH version)

!

Transformer

PCB-1: MAIN BOARD Vm2.0

SPKOUT

CB45

C445

IC45

C444

JDD

JDK

0VAC

GND

PL

R452

8VAC

-37

L-OUT

PR

C218

R251 L21

TRIG

AC DET

I-V

+37

D430

CB47

C219

S41

GND

RL12/1

J1

J2

R250

D412

R467

Q215

P1-L

(-46V)

WHITE

RED

(+46V)

Q214

P2-L

TP9

Q114

P4-R

(+46V)

RED

WHITE

(-46V)

Q115

P3-R

R439

J125

J193

J191

J164

(+46V)

J142

R453

TP5

J192

TP2

C215

C214

TP1

TP6

P5-GND

TP8

TP3

J143

C114

C115

TP4

TP7

J3

L-OUT

(DGND)

R245

R244

J166

J124

R150

J165

C119

(GND)

J144

J126

J123

R144

R145

J43

R478

RI2

RI5

C362

(+12V)

J34

MUTE

STANDBY

PROTECT

VOL-

R493

VOL+

J49

J50

Q413

H1

Q423

CB31

+5V

Ipod

PHONE2

R2

C3

RI3

RI4

QI2

RI6

RI7

RI1

J38

J37

QI1

(+5V)

J35

J36

IR IN

IR OUT

+12V

CD

VIDEO

AUX

TUNER

TAPE2

DISC

TAPE1

J203

CB34

R494

C446

R483

R-OUT

J7

C118

J6

L11

R-OUT

R151

J5

H7

C213

J199

Q211

Q213

(DGND)

Q216

C227

J195

J196

J197

J198

J190

J189

(GND)

(L-OUT)

J188

J171

R246

J167

(DGND)

(GND)

J169

J168

J146

J145

J147

J148

R146

C113

J122

J120

J121

J173

J172

C212

J170

Q212

Q210

H6

H4

Q112

Q110

C112

J141

J140

J134

(R-OUT)

J133

(GND)

VR12

J127

Q111

Q113

Q116

J119

C127

H5

J4

R487

R490

D419

R445

R446

D420

R491

R488

J10

J9

J8

(GND)

RCA35

C363

J13

R347

R348

Q31

Q32

C343

R389

D315

R334

R336

R335

J12

J11

R333

RCA34

C364

C344

C317

R390

D314

R339

R317

R318

C318

J25

R343

R315

C315

J26

RL38

RCA33

R338

R342

R316

R313

C313

C316

J28

J27

D313

R341

R337

R314

R311

C314

C311

J29

RL37

D312

R358

R357

R310

R39

R312

C39

C312

RL36

D311

COPYRIGHT C 2006

(MAIN IN L)

(GND)

(MAIN IN R)

(GND)

J31

J30

J200

R242

R225

R239

R237

R233

R230

R227

R238

R207

R229

D22

D21

R236

R228

J174

R224

R247

R208

R243

J162

J163

J149

R143

R147

R108

C25

C211

J187

J186

VR22
C210

C26

J175

R232

R231

R226

J161

J160

Q21

C220

Q11

C120

J150

R132

R126

R130

C416

J151

J14

R258

R257

R256

R261

R260

J201

J185

J184

J176

CB21

J177

J202

D27

R424

R422

R248

R252

J155

Q45

Q46

J205

J156

J158

J157

Q47

Q48

C415

R418

R420

D410

R148

R152

D17

CB11

C15

R136

R128

D11

R124

R142

C110

J130

J129

C111

D12

J152

R138

R107

R125

J128

R129

R139

R137

R127

R133

J132

J131

C16

R131

R160

R158

R157

R156

R161

C332
C334

(PRE OUT L)

J15

J16

J17

J18

IC42

C27

C21

R25

R24

R21

R22

J178

D202

R416

R425

R417

R423

Q217

R262

Q218

R263

J159

J154

Q118

R163

Q117

R162

D411

D102

D103

R421

R419

J138

J206

J137

R11

R12

C11 C17

R15

R14

IC41

VR304

VR303

J105

J109

R332

R330

R331

J107

J108

(PRE IN L)

(GND)

(PRE OUT R)

(GND)

J22

J19

J21

J20

BUS-BAR (PRE-GND)

C222

C221

J183

(GND)

(GND)

J180

J181

J179

D203

R268

C223

R267

R265

R264

IC21

R266

J207

D101 D201

R164

IC11

R166

J153

R165

R167

R168

C123

J139

(GND)

J136

J135

C122

J104

J106

C333

C331

R361

RT32

J23

J75

(+18V)

J182

J96

(MAIN IN R)

J97

J98

C121

SW31

R329

R362

J76

J77

J78

(PRE IN R)

J24

(+18V)

(-18V)

(-18V)

(+18V)

J79

(GND)

C323

C324

(GND)

J84

J85

J86

J94

J95

J99

(+18V)

PRE OUT L

R328

R327

R325

R321

R323

C330

R363

NAD C325BEE MAIN BOARD Vm2.0

CB32

J73

(-18V)

J80

CB33

(PRE OUT R)

(-18V)

J100

C322
C326

R346

R392

C320
C319

R391

R345

C325
C321

J93

J110

J81

J83

C342

J92

J103

C341

R326

R319

R320

R324

R322

C328

R364

C335

(GND)

(-18V)

J82

C346

J101

J102

C345

C327

C329

RT31

C310

C339

C336

R37

RL35

(GND)

RCA32

R356

R353

R355

C37

D310

R354

R38

C38

RL34

R36

R35

C35

C36

D39

NAD ELECTRONICS

J39

C429

C426

C430

J74

J45

J48

J47

J44

R441

Q12/1

(-37V)

(+37V)

J55

J54

C49

C411

C43

C44

C338 C340

J114

D43

R438

R442

R437

C47

R41

C410

C48

C301

J90

(PRE IN R)

C417

Q401

J117

J115

J116

(GND)

RT34

J72

J71

J70

(+18V)

J69

J68

J67

C412

R384

R386

VR302

R388

C350

J91

(PRE IN L)

R383

VR301

R387

R385

C349

C337

J112

J111

(GND)

J113

RCA31

R351

R352

R34

R33

C33

C34

RL33

D38

R473

R472

R477

R469

R468

R474

Q421

(+18V)

D428

R443

C12/1

R12/2

R12/1

J53

IC44

J56

D42

Q412

C420

C413

R49

R43

R45

J66

C45

R42

R46

R44

R410

J87

C46

C414

Q402

C303

R406

R407

R402

R403

R405

R404

J118

R480

R412

C418

Q403

R350

R349

R31

C31

RL32

D37

J32

TP10

TP11

IC43

J42

D417

D418

J41

R440
D423

C432

J58

J57

H3

C421

R411

R413

D49

Q41

R47

Q43

D403

Q44

R48

J88

R414

Q42

Q404

C302

H2

J89

PHONE1

CB35

R394

R395

R32

R393

R396

C32

C304

C305

RL31

R479

J40

Q411

R436

R489

R435

J204

RT33

RL39

D316

(DGND)

J33

(GND)

C431

C428

SOFT CLIPPING

R476

C425

(DGND)

R471

R470

R482

VR3

C434

J46

R448

R457
R451

J51
J52

C422

J59

J60

J61

J62

J63

J64

C419

C41

J65

C443

Q414

R428

R429

R401

R427

R495

Q422

20

PCB-7:IN MODULE Vm1.0

COPYRIGHT C 2006 NAD ELECTRONIC

NAD C325BEE

R614

Q66

R616

R618

Q68

Q65

Q62

R68

C610

R610

MODULE BOARD Vm1.0

OUT

J61

D64

C67

C65

C66

C68

D61

D63

R612

C63

C64

C62

C61Q61

R64

R62

R61

R63

D62

R615

R613

Q67

R69

R611

Q64

Q63

C69

R617

R67

PCB-2:POWER BOARD Vm1.0

R563

R566

R564

R559

R560

F54

Q518

J513

J510

C52

R565

To AC cord

F53

CB55

C54

D55

D532

R558

Q517

CB51

Q520

Q519

J52

J57

RED

CB57

To Thansformer

C53

CB59

To AC Outlet

J520

J51

C518

CB56

To Power Switch

RED

+46V

CB54

WHITE

-46V

R620

CB61

R621

C611

R619

PCB-6:OUT MODULE Vm1.0

COPYRIGHT C 2006 NAD ELECTRONIC
NAD C325BEE

R614

Q66

R616

R618

Q68

Q65

Q62

R68

C610

R610

R620

CB61

MODULE BOARD Vm1.0

IN

J61

C65

D63

C64

R62

R64

R621

C67

C68

R61

D62

R615

D61

C63

Q61C61

R63

C611

D64

C66

R612

C62

R613

Q67

R611

R69

R619

Q64

Q63

C69

R617

R67

R531

CB53

CB58

J519

WHITE

-46V

TRIG

AC DET

I-V

+37V

-37V

8VAC

0V

(GND)

RED

+46V

CB52

J56

J514

(-46V)

BLUE

(GND)

J512

D531

F51 C51

Q59

Vm2.0

NAD ELECTRONICS

COPYRIGHT C 2006

NAD C325BEE

Q510

F52

R532

R567

R534

R562

R561

R533

D51

J516

J518

J54

J58

T500MAL/250V

F55

J515

(GND)

D56

J517

C524

C517

R544

D513

C523

21

PCB-3:KEY BOARD Vm1.0

C72

IC71

J78

J792

Q72

CB73

R708

D713

Q73

J714

J79

J710

R71

R701

J712

RED

D714

J716

J715

(GND)

J71

J72

J74

J73

D712

D711

D710

RED

Q74

CB74

R763

R72

J711

R759

R758

J717

R756

J713

J75

J719

J718

C710

Y71

IC73

C725

D74

S75

R757

C79

C711

(+5V)

R765

J734

(GND)

(+5V)

C78

J733

D75

(+5V)

J724

J727

R726

J725

S74

C724

J721

J722

J723

J720

(+5V)

J735

J793

J726

IC75

IC74

C712

J736

(GND)

J737

R733

D718

J732

D72

D71

J776

J730

J731

J728

D76

J729

COPYRIGHT C 2006
NAD ELECTRONICS
C325BEE KEY BOARD Vm1.0

76

S

S72

S71

R752

R754

J738
(GND)

R748

R761

R760

R749

C721

D73

S73

R751

R750

R747

Q718

J

7

39

J740

R745

C718

C720

R727

J741

S7

Q713

Q715

J745

D77

J742

Q716

7

R744

R743

C716

C717

Q712

Q711

J744

J743

R762

J752

(GND)

R703

R725

R764

J753

R753

R742

C715

Q710

J746

J747

R702

R730
R73

C722

CZ72

Q79

R741

C714

C723

Q717

(GND)

R746

C719

Q714

J748

J749

(GND)

J750(GND)

D716

J794

CZ71

RED

C77

C71

CB72

D715

J76

J77

PCB-8:STANDBY BOARD Vm1.0

C325BEE STANDBY
BOARD Vm1.0

S78

D717

CZ73

RED

PCB-9:IPOD BOARD Vm1.0

C325BEE IPOD BOARD Vm1.0

C760

TP701

D719

L

RED

PHONE71

CZ74

WHITE

C758

R

RED

CZ75

PCB-11:IR BOARD Vm1.0

CZ76

IC72

C759

RED

S

G

V

PCB-10:HEADPHONE BOARD Vm1.0

C325BEE HEADP Vm1.0

R455

R454

J41

CZ45

JK41

22

PCB-5:AMP-SMD-R BOARD Vm1.0

(TOP VIEW)

C325BEE AMP-SMD-R Vm1.0

D16

C104

Q19

Q18

D13

C103

P/N: 01-32520-02

(BOTTOM VIEW)

D14

R104

R155

R122

R106

R110

R120

Q104

Q102

R112

C14

R105

Q17

R123

C19

Q15

Q13

C18

R116

L12

R169
C124

Q103

Q16

Q14

R115

Q12

R159

R111

R149

Q101

R19

C13

CZ11

D15

R103

R121

C12

R119

R101

R102

R154

D24

R204

R255

R222

R206

R210

R220

C325BEE AMP-SMD-L Vm1.0

D26

C204

Q204

Q202

R212

C24

R205

Q27

R223

Q29

C29

Q25

Q23

Q28

C28

Q203

Q26

Q24

R216R215

Q22

R259R249

L22

R269
C224

R211

Q201

R29

D23

C203

C23

D25

R203

R221

C22

R219

R201

R202

R254

CZ21

PCB-4:AMP-SMD-L BOARD Vm1.0

(TOP VIEW)

P/N: 01-32520-01

(BOTTOM VIEW)

23

TROUBLESHOOTING GUIDE

24

PUSH THE POWER SUPPLY
SWITCH TO ON

IS THE AMBER LED AMBER

LIGHT?

YES

CAN PRESSING ANY KEY MAKE

THE UNIT WORK NORMALLY?

YES

IS THE SPK OUT NORMAL?

YES

NO

IS IT RED?

YES

NO

ARE ALL POWER SUPPLIES OK?

NO

IS THE ABMER LED GREEN?

YES

YES

NO

NO NO

IS THE OUTPUT DC LEVEL
NORMAL?

YES

IS THERE SIGNAL OUTPUT? NORMAL?

YES

CHECK THE AMBER LED CONTROL
CIRCUIT(Q72,Q73,Q74,LED717)
CHECK 12V SUPPLY

NO

YES

YES

NO YES

YES

IS IT GREEN?

IS THE STANDBY SINGAL LOW

LEVEL?

NO

YES

NO

NO

IS THE POWER AMP INPUT

NO

IS THE MUTE SIGNAL OFF?

NO

IS THE VOLUME CONTROL CIRCUIT
NORMAL?

YES

ARE THE TWO MODULES NORMAL?

YES

NO

YES

YES

NO

NO

CHECK THE 5V SUPPLY CIRCUIT
(ON POWER BOARD)

CHECK THE LED CONTROL
CIRCUIT(Q72,Q73,Q74,LED717)
AND PROTECET CIRCUIT

CHECK THE POWER SUPPLIES
CIRCUIT

CHECK THE PROTECT CIRUIT

CHECK THE STANDBY CONTROL
CIRCUIT

CHECK THE KEYS CONNECTIONSOME KEYS IS USELESS?

CHECK MCU AND RELAY
CONTROL CIRCUIT

CHECK THE SERVO CIRCUIT

CHECK THE POWER AMP CIRCUIT

SECTION

CHECK THE MUTE CONTROL
CIRCUIT

CHECK THE VOLUME CONTROL
CIRCUIT

CHECK THE MODULES CIRCUIT

CHECK THE TONE CIRCUIT

IS THE REMOTE CONTROL OK?

YES

IS THE 12V SUPPLY NORMAL?

YES

OK

IS THE THD HIGH?

YES

IS THE IDLE CURRENT NORMAL?

YES

NO

NO

IS THE IR IN/OUT NORMAL?

YES

IS THE REMOTE HANDSET ITSELF
NORMAL?

YES

IS THE 18V SUPPLY NORMAL?

NO

NO

NO

NO

IS THE S/N RATE BAD? TURN THE TRANSFORMER

NO

YES

ADJUST THE IDLE CURRENT OR

CHECK THE IDLE CURRENT
CIRCUIT

CHECK THE POWER AMP CIRCUIT

(IF SOME TRANSISTORS ARE
DEFEATED)

CHECK THE IR IN/OUT
CONNECTION OR CIRCUIT(PARTS)

REPLACE THE BTTERIES OR
ANOTHER REMOTE CONTROL
HANDSET

CHECK THE IR CONTROL CIRCUIT

(INCLUDE THE IR RECEIVER AND

MCU)

CHECK THE 18V SUPPLY

YES

DID THE 12V SUPPLY SHORT
GROUND?

CHECK THE CONNECTION
AND CHECK IF THE RELATIONAL
TRANSISTORS ARE DEFEATED

ELECTRIAL PARTS LIST

25

PCB-1: MAIN BOARD

CIRCUIT NO. PART NO. DESCRIPTION

ICS

IC41, IC42, IC43 03-00082-00 TL082CP/CN/D
IC44 03-01237-00 UPC1237HA

IC45 03-01117-01

IC11, IC21 03-00431-03 AZ431BZ-B

DIODES

D430 DB104

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 1N4148 (Pitch=10mm)
D11, D12, D21, D22 4.7V, 0.5W

D410, D411 20V, 0.5W

D49 18V, 0.5W

TRANSISTORS

Q31, Q32 31-00363-00 2SK363

AMS1117-5.0/
LM1117MPX-5.0

1N4148 (Pitch=7.5mm)

Q31, Q32 or 31-00369-00 2SK369

Q31, Q32 or 31-00170-00 2SK170

QI2, Q12/1, Q44, Q45, Q47,
Q401, Q403, Q411

QI1, Q11, Q21, Q43, Q46,
Q48, Q402, Q404, Q412,
Q414, Q421

Q117, Q217 31-00970-00 2SA970 GR
Q423, Q118, Q218 31-02240-00 2SC2240

Q422 31-00667-00 2SD667A

Q413, Q41, Q216, Q211,
Q212, Q112, Q116, Q111
Q42, Q213, Q210, Q110,
Q113

C45, C46 05-22012-00 22p, 100V, ±10%
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 05-22151-01 220p, 50V, ±10%
C112, C113, C212, C213 05-47112-00 470p, 100V, ±10%

31-01015-00 2SA1015 GR

31-01815-00 2SC1815

31-02690-00 KSC2690AYSTU

31-01220-00 KSA1220AYSTU

CAPACITORS

05-10151-01 100p, 50V, ±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%

C327, C328, C119, C219 25-22361-01 22n, 63V, ±5%

26

C329, C330 25-10461-05 0.1uF, 63V, ±5%
C114, C115, C118, C214,
C215, C218, C411, C412
C17, C27, C322, C321,
C345, C346, C337, C338,
C319, C320
C331, C332 25-22461-02 0.22uF, 63V, ±5%
C121, C122, C221, C222,
C333, C334

C339, C340 06-10951-08 1uF, 50V, ±20%

C421, C417, C418 06-47951-00 4.7uF, 50V, ±20%
C301, C48, C415, C416,
C419, C425, C426, C428,
C429, C430, C431, C446
C11, C21 06-10051-08 10uF, 50V, ±20%
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 06-47021-06 47uF, 25V, ±20%
C325, C326, C341, C342 06-47021-09 47uF, 25V, ±20%
C420, C445 06-10111-00 100uF, 16V, ±20%
C125, C126, C225, C226 100uF, 63V, ±20%(N.I)
C413, C414 06-22131-00 220uF, 35V, ±20%
C15, C16, C25, C26, C43,
C44
C422 06-33111-01 330uF, 16V, ±20%
C444 06-47211-00 4700u, 16V, ±20%

R169, R269 07-91204-02
R385, R386 07-10189-50 1R8, 1/6W, ±5%
R2 07-10100-50 10R, 1/6W, ±5%
R494 07-10120-50 12R, 1/6W, ±5%
R142, R143, R242, R243, 07-10220-51 22R, 1/4W, ±5%
RI3 07-10330-50 33R, 1/6W, ±5%
R107, R108, R207, R208 07-10390-51 39R, 1/4W, ±5%
R335, R336 07-10680-51 68R, 1/4W, ±5%
R14, R24, R416, R417,
R418, R419
RI7 07-10331-50 330R, 1/6W, ±5%
R138, R238 07-10431-51 430R, 1/4W, ±5%

25-10461-01 0.1uF, 63V, ±10%

25-10461-06 0.1uF, 63V, ±10%

25-10561-02 1u, 63V ±5%

06-10051-00 10uF, 50V, ±20%

06-47021-00 47uF, 25V, ±20%

06-47021-08 47uF, 25V, ±20%

06-22161-00 220uF, 63V, ±20%

RESISTORS

1M2¡, ±1%

07-10101-50 100R, 1/6W, ±5%

R11, R21 07-10471-50 470R, 1/6W, ±5%

R31, R32, R33, R34, R35,
R36, R37, R38, R39, R310,
R311, R312, R313, R314,
R315, R316, R317, R318,
R393, R396

R495 07-10511-50 510R, 1/6W, ±5%
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

07-10471-51 470R, 1/4W, ±5%

07-10681-51 680R, 1/4W, ±5%

07-10102-50 1K, 1/6W, ±5%

07-10102-51 1K, 1/4W, ±5%

R422, R423, R424, R425 07-10132-50 1K3, 1/6W, ±5%

/

27

R428, R440, R158, R258 07-10222-51 2K2, 1/4W, ±5%
R480 07-10392-51 3K9, 1/4W, ±5%
R401, R482, , R333, R334, 07-10472-51 4K7, 1/4W, ±5%
RI4 07-10472-50 4K7, 1/6W, ±5%
R429 07-10512-51 5K1, 1/4W, ±5%
R166, R266 07-10562-50 5K6, 1/6W, ±5%
R12/1 07-10682-51 6K8, 1/4W, ±5%
RI1, RI5, RI6, R164, R264,
R165, R265
R470, R471, R469, R402,
R404
R148, R248 07-10153-50 15K, 1/6W, ±5%
R441 07-10153-51 15K, 1/4W, ±5%
R487, R488 07-10183-51 18K, 1/4W, ±5%
R387, R388 07-10203-50 20K, 1/6W, ±5%
R15, R25, R152, R252 07-10223-50 22K, 1/6W, ±5%
R12/2, R468 07-10223-51 22K, 1/4W, ±5%
R420, R421 07-10363-50 36K, 1/6W, ±5%
R473 07-10433-51 43K, 1/4W, ±5%
R477, R437 07-10473-51 47K, 1/4W, ±5%
R436, R442, R445, R446 07-10563-51 56K, 1/4W, ±5%
R347, R348, R448, R478,
R479, R489, R490, R491
R438, R493 07-10184-51 180K, 1/4W, ±5%
R12,R22 07-10224-50 220K, 1/6W, ±5%
R457, R345, R346 07-10224-51 220K, 1/4W, ±5%
R483 07-10274-51 270K, 1/4W, ±5%
R451 07-10334-51 330K, 1/4W, ±5%
R435 07-10394-51 390K, 1/4W, ±5%
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 07-20181-51 180R, 1/4W, ±5%
R325, R326 07-23900-51 390R, 1/4W, ±1%
R331, R332 07-23900-50 390R, 1/6W, ±1%
R139, R239 07-24120-51 412R, 1/4W, ±1%
R383, R384, R391, R392 07-25600-50 560R, 1/6W, ±1%
R323, R324 07-27500-51 750R, 1/4W, ±1%
R329, R330 07-21501-50 1K5, 1/6W, ±1%
R412 07-20202-51 2K, 1/4W, ±5%
R414 07-20222-51 2K2, 1/4W, ±5%
R321, R322 07-20332-51 3K3, 1/4W, ±5%
R363, R364 07-20513-50 51K, 1/6W, ±5%
R389, R390 07-20106-50 10M, 1/6W, ±5%
R150, R250 07-30109-01 1R, 1W, ±5%
R124, R125, R224, R225 07-30339-00 3R3, 1/2W, ±5%
R427 07-30220-01
R452, R453 07-30221-03
R128, R129, R228, R229 07-30331-00 330R, 1/2W, ±5%
R146, R246 07-30182-02 1K8, 2W, FP, ±5%
R126, R127, R132, R133
R226, R227, R232, R233
R136, R137, R236, R237 07-50100-10
R151, R251 07-50100-01 10R, 1W, FS, ±5%
R45, R46 07-50330-00 33R, 1/2W, ±5%, FS
R130, R131, R230, R231 07-50820-02 82R, 1W, FS, ±5%
R443 07-50151-00 150R, 1/2W, ±5%
R144, R145, R244, R245 07-40687-03 0.068R, 3W, CE, ±5%

L11, L21 08-01005-00 0.5uH

07-10103-50 10K, 1/6W, ±5%

07-10103-51 10K, 1/4W, ±5%

07-10104-51 100K, 1/4W, ±5%

07-10474-51 470K, 1/4W, ±5%

07-10105-51 1M, 1/4W, ±5%

22¡, 1W ±5%
220¡

2W 5%

07-30332-12 3K3, 2W, FP, ±5%

10¡, 1/4W, ±5%

INDUCTORS

POTS

VR301, VR302 09-02101-00 100R

28

VR12, VR22 09-02201-02 200R
VR3 09-02103-00 10K
VR304, VR303 09-02303-00 30K
RT31, RT32 09-01103-01 RK163121A2CA 10KAx2
RT33 09-01203-01 RK16812MG 20KBx2
RT34 09-01203-03 RK163121A10D 20KMN

SWITCHS

S41 11-05202-02 SK-22F03G7
SW31 11-02202-02 SPUN190700

RELAYS

RL31, RL32, RL33, RL34,
RL35, RL36, RL37,
RL38,RL39

RL12/1 12-01101-02 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 13-22503-00 XHB2.5A-3A
CB45 13-22505-00 XHB2.5A-5A
CB47 13-22507-00 XHB2.5A-7A
CB34 13-22509-00 XHB2.5A-9A
CB31 13-22510-00 XHB2.5A-10A
RCA31,RCA32,RCA34 17-01004-00 4 holes red and white, gilt
RCA33 17-01006-00 6 holes red and white, gilt

PHONE[phone]

PHONE[phone] PHONEJACK2
Binding Post Assy 02-03001-20 C VERSION
Binding Post Assy 02-03001-10 AH VERSION
Binding Post(Red) 17-03002-01 C VERSION
Binding Post(Red) 17-03002-11 AH VERSION
Binding Post(Red) 73-001003-0 HS4-C320-B009V1-P003
BDP CAP(Red) 73-001005-0 HS4-C320-B009V1-P007
Shaft 69-001001-0 HS4-C320-B009V1-M024
Binding Post 69-001002-0 HS4-C320-B009V1-M025
Binding Post(Black) 17-03002-02 C VERSION
Binding Post(Black) 17-03002-12 AH VERSION
Binding Post(Black) 73-001004-0 HS4-C320-B009V1-P004
BDP Cap(Black) 73-001006-0 HS4-C320-B009V1-P008
Shaft 69-001001-0 HS4-C320-B009V1-M024
Binding Post 69-001002-0 HS4-C320-B009V1-M025
BDP SUPPORT 66-001006-1 HS4-C320-B009V1-M015 B
BDP PIN 69-001010-0 HS4-C320-B009V1-M017

12-02101-02 JRC-27F/012/S

CONNECTERS

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®

ST-323B-04
CKK-3.5-02-3P

LINKS

J3, J7, J28, J29, J38, J42,

29

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

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

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 21-06000-00 L=22.5mm
J70, J71, J77, J78, J84,
J85, J86, J177
J2, J5 21-10750-00 L=7.5 (thick links)
J79 21-10101-00 L=10 (thick links)
J167 21-10201-00 L=20 (thick links)
J1, J6, J148 21-10251-00 L=25 (thick links)

PCB-6:OUT MODULE ; PCB-7: IN MODULE
CIRCUIT NO. PART NO. DESCRIPTIONS

Q61, Q62 31-00170-00 2SK170
Q63, Q65 31-00970-00 2SA970
Q64, Q66 31-00647-00 2SB647A
Q67, Q68 31-00667-00 2SD667A

D61, D62, D63, D64 33-44148-00 1N4148

C63, C64, 05-22012-01 22p, 100V, ±10%
C611(IN MODULE) 05-43012-01 43p, 100V, ±10%
C611(OUT MODULE) 05-75012-00 75p, 100V, ±10%
C69, C610 05-10151-00 100p, 50V, ±10%
C61, C62 05-22151-00 220p, 50V, ±20%

21-06000-00 L=5mm

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=25mm

Line Out: 01-32560-02 and Line In: 01-32560-01

TRANSISTORS

DIODES

CAPACITORS

C65, C66, C67, C68 24-10461-00 0.1uF, 63V, ±20%

30

RESISTORS

R617, R618, R619, R620 07-20100-50
R615, R616 07-20330-50
R61, R62 07-20221-50
R69, R610 07-24300-50
R67, R68, R611, R612 07-20102-50
R613, R614 07-20103-50
R621 07-20303-51
R63, R64 07-20105-50

CONNECTER

S006 13-12509-01 CZ61

J61 21-06000-00 L=5

PCB-4: AMP MODULE L SMD

CIRCUIT NO. PART NO. DESCRIPTION

Q26 31-01015-01 2SA1015
Q27 31-01815-01 2SC1815
Q22, Q25, R202, Q204 31-01312-00 2SA1312-GR
Q23, Q24, Q201, Q203 31-03324-00 2SC3324-GR
Q28 31-00647-00 2SB647A
Q29 31-00667-00 2SD667A

D23, D24, D25, D26 33-44148-11 LL4148

R254, R255 07-90100-01
R215, R216 07-91509-01
R249 07-96809-01
R203, R206, R219, R220 07-98209-01
R211, R212, R259 07-91000-01
R269 07-93300-01
R29, R201, R205, R210 07-93902-01
R223 07-94702-01
R221, R222 07-91003-01
R202, R204 07-92203-01

C28, C29 26-39051-01 39pF, 50V, ±5%
C22, C224 26-10251-11 1nF, 50V, ±5%
C23, C24 06-10031-02 VSS, 10uF, 35V, ±20%
C203, C204 06-22011-05 VSS, 22uF, 16V, ±20%

L22 08-04101-00 100uH

S006 13-12508-11 CZ21

PCB-5: AMP MODULE R SMD

CIRCUIT NO. PART NO. DESCRIPTION

01-32520-01

01-32520-02

TRANSISTORS

DIODES

RESISTORS

CAPACITORS

INDUCTORS

CONNECTER

10¡, 1/6W, ±5%
33¡, 1/6W, ±5%
220¡, 1/6W, ±5%
430¡, 1/6W, ±1%
1

K¡, 1/6W, ±5%
10K¡, 1/6W, ±5%
30K¡, 1/4W, ±5%
1M¡, 1/6W, ±5%

10¡, ±5%
15¡, ±1%
68¡, ±1%
82¡, ±1%
100¡, ±1%
330¡, ±1%
39K¡, ±1%
47K¡, ±1%
100K¡, ±1%
220K¡, ±1%

TRANSISTORS

Q16 31-01015-01 2SA1015
Q17 31-01815-01 2SC1815

Q12, Q15, Q102, Q104 31-01312-00 2SA1312-GR
Q13, Q14, Q101, Q103 31-03324-00 2SC3324-GR
Q18 31-00647-00 2SB647A
Q19 31-00667-00 2SD667A

DIODES

D13, D14, D15, D16 33-44148-11 LL4148

RESISTORS

R154, R155 07-90100-01
R115, R116 07-91509-01
R149 07-96809-01
R103, R106, R119, R120 07-98209-01
R111, R112, R159 07-91000-01

10¡, ±5%
15¡, ±1%
68¡, ±1%
82¡, ±1%
100¡, ±1%

R169 07-93300-01

K

31

R19, R101, R105, R110 07-93902-01

R123 07-94702-01

R121, R122 07-91003-01

R102, R104 07-92203-01

CAPACITORS

C18, C19 26-39051-01 39pF, 50V, ±5%

C12, C124 26-10251-11 1nF, 50V, ±5%

C13, C14 06-10031-02 VSS, 10uF, 35V, ±20%

C103, C104 06-22011-05 VSS, 22uF, 16V, ±20%

INDUCTORS

L12 08-04101-00 100uH

CONNECTER

CZ11 13-12508-11 S006

PCB-8: STANDBY BOARD

CIRCUIT NO. PART NO. DESCRIPTION

DIODES

D717 33-50525-00

SWITCHS

S78 11-04101-10

CONNECTER

CB73———CZ73 14-32505-10

PCB-2: POWER BOARD

CIRCUIT NO. PART NO. DESCRIPTION

TRANSISTORS

Q59, Q510, Q517, Q519 31-01015-00 2SA1015 GR

Q518, Q520 31-01815-00 2SC1815 GR

DIODES

D513 33-24004-02 1N4004

33-24004-00 1N4004
D56 33-30142-00 DB104
D51, D55 33-30822-00 8A/200V
D531, D532 33-60116-00 TIC116D/BT151-500R

C54 25-47422-00

C53 05-47242-00 4n7p, 400V, ±20%

C51, C52 25-10322-00 10n/250V 10%
C524 06-22251-00 2200u/50V 20%
C523 06-33251-00 3300u/50V 20%
C517, C518 06-15351-01 15000u/50V 10%, two foods
C517, C518 06-15351-02 15000u/50V 10%, two fods

R561, R565 07-10101-51
R532 07-10221-51
R558, R559, R560, R562 07-10102-51
R534 07-10222-51
R566 07-10472-51
R544, R563, R564 07-10223-51
R567 07-10334-51
R533 07-10105-51
R531 07-40507-03

F51, F52, F53, F54 20-12632-00 T6.3AL250V
F55 20-12501-00 T500mAL/250V
F51, F52, F53, F54 20-20000-00 HF-004

CB52, CB54, CB58 13-23902-00 VH 3.96A-2A

CB55, CB56, CB59 13-23903-01

CB57 13-23903-11

CB51 13-23907-10 VH 3.96A-7A

!

Ƹ

!

Ƹ

CAPACITORS

!

Ƹ

!

Ƹ

78-001001-0 811810-23

RESISTORS

FUSES

!

Ƹ

!

Ƹ

CONNECTERS

!

Ƹ

!

Ƹ

330¡, ±1%
39K¡, ±1%
47K¡, ±1%
100K¡, ±1%
220K¡, ±1%

5 DUAL COLOR

DTSG˄P˅-24N

26AWG UL2468# white, 70mm
length

MKP62, 275V, 0.47uF 10%
MPX 275VAC 0.47uF 10%

100¡, ±5%, 1/4W
220¡, ±5%, 1/4W
1

¡, ±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%

VH 3.96A-3A(delete the center
needle)
VH 3.96A-3A(delete the center
needle)

CB53——CB47 14-32507-10

32

LINKS

J52, J57, J513, J517 21-06000-00 L=5
J516, J520 21-06000-00 L=7.5
J51 21-06000-00 L=10
J514 21-10101-00 L=10
J54, J58, J518 21-06000-00 L=12.5
J510 21-06000-00 L=15
J56 21-10151-00 L=15
J515 21-06000-00 L=18
J519 21-10201-00 L=20
J512 21-06000-00 L=25

PCB-3: KEY BOARD
CIRCUIT NO. PARTS NO DESCRIPTION

ICS

IC71 03-02402-00 24C01A/24C02(A)/24C04(A)
IC74, IC75 03-04094-00 CD4094/HEF4094
IC73 03-04051-22 AT89C4051-12PU
IC73 03-04051-12 AT89C4051-12PU
IC76 03-00810-02 TCM810MENB

TRANSISTORS

Q72, Q73, Q74, Q79, Q710,
Q711, Q712, Q713, Q714,
Q715, Q716, Q717, Q718

D710, D711, D712, D713,
D714, D715
D718 33-44148-00 1N4148
D71 ,D72, D73, D74, D76,
D77, D716
D75 33-50340-00

Y71 04-11102-00 11.0592MHz, CL=15pF

C79, C710 05-27051-00 27p, 50V, ±10%
C724, C725 N.I.
C77, C714, C715, C716,
C717, C718, C719, C720,
C721
C72, C78, C711, C712 24-10461-00 100nF, 63V, ±20%
C722 N.I.
C71, C723 06-10111-00 100uF, 16V, ±20%

31-01815-00 2SC1815

DIODES

33-44148-00 1N4148

33-50350-00

CRYSTAL

CAPACITORS

24-10312-00 10nF, 100V, ±20%

SCN 2.5A-7D needles,XHB 2.5A-7Y
plug. 26AWG UL2468# white,
230mm length

¶3 GREEN LED

¶3 AMBER LED

RESISTORS

R71 07-10331-50
R72 07-10471-50
R701, R703, R725, R759 07-10222-50
R726, R727 07-10222-51
R748, R749, R750, R751,
R752, R754, R760, R766
R741, R742, R743, R744,
R745, R746, R747, R753,
R761
R733 07-10512-51
R702, R73, R756, R757,
R758, R762, R763, R764
R708 07-10103-51
R730 07-10153-50

S71, S72, S73, S74, S75,
S76, S77

07-10472-50

07-10472-51

07-10103-50

SWITCHS

11-04101-00 IT-1102D-1160

CONNECTERS

330¡, 1/6W, ±5%
470¡, 1/6W, ±5%
2K2¡, 1/6W, ±5%
2K2¡, 1/4W, ±5%

4K7¡, 1/6W, ±5%

4K7¡, 1/4W, ±5%

5K1¡, 1/4W, ±5%

10K¡, 1/6W, ±5%

10K¡, 1/4W, ±5%
15K¡, 1/6W, ±5%

CZ71--CB34 14-32509-00

1007#,24AWG,black,35mm

g

33

CZ72--CB31 14-32510-00

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 21-06000-00 L=15
J714, J748 21-06000-00 L=18
J721, J722, J723, J725,
J736, J741

PCB-9: IPOD BOARD

CIRCUIT NO. PART NO. DESCRIPTION

D719 33-50350-00

C758, C759 05-10151-01 100p, 50V, ±10%
C760 24-10461-00 0.1uF, 63V, ±20%

R766 07-10100-50

PHONE[phone] SCJ340R0GBS0B00
TP701--front panel 14-32501-12

CZ75——CB35 14-32503-11

CB74——CZ74 14-32504-10

PCB-10: HEADPHONE BOARD
CIRCUIT NO. PART NO. DESCRIPTION

R454, R455 07-30101-04

CZ45--CB45 14-32505-01

CZ45 13-22505-00 XHB2.5A-5A

J41 21-06000-00 L=5mm

PCB-11: IR BOARD
CIRCUIT NO. PART NO. DESCRIPTION

IC72 03-00038-40 HS0038B4

CZ72--CB72 14-32503-10

OTHERS
CIRCUIT NO. PART NO. DESCRIPTION

C VERSION 18-32515-20 TD-230-0150G
AH VERSION 18-32515-10 TD-120-0150G

Busbar 69-065001-0 T2Y2 T=1mm
Heatsink (SMALL1) 70-065001-0 ALU 6063 BLACK

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 L=20

DIODES

CAPACITORS

RESISTORS

CONNECTER

RESISTORS

CONNECTER

LINKS

ICS

CONNECTER

TRANSFORMER

!

Ƹ

!

Ƹ

METAL PARTS

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

¶3 GREEN LED

10¡, 1/6W, ±5%

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.

100¡ 2W ±5%

XHB 2.5A-5Y plug,26AWG
UL2468# white, 410mm length

SCN 2.5A-3D needles˗26AWG
UL2468# ,red/whiteˈ60mm len

th

Heatsink (SMALL2) 70-065002-0 ALU 6063 BLACK

34

Machine Screw 61-022510-5 MB2.5×10
Machine Screw 61-022514-5 MB2.5×14
Nut 62-010202-5 M2.5
RIVET 61-382003-5 GB975-86-2.5×3

CONNECTERS

VH 3.96A-3Y(delete

14-32502-23

14-32502-33

15-02251-20 WB01HS-001
15-10121-10 WB05HS-001
15-02251-30 2GTJ1
17-07002-10 JY0647A AC Outlets(AH)

11-01101-03

NOTES: AH C

center needle) plug.

18AWG UL1672#,

!

Ƹ

red/blue,180mm

length.

VH3.96A-3Y(delete

center needle)

plug,18AWG

!

Ƹ

UL1672# .

red/blue,160mm

length.

!

Ƹ

!

Ƹ

!

Ƹ

!

Ƹ

RF-1003-BB2, 10A

!

Ƹ

250V, TV-5

CB59——AC OUTLET(AH)

CB56——POWER SWTICH

AC CORD˄C˅
AC CORD˄AH˅
AC CORD˄CCC˅

SW52

TRANSFORMER

AC CORE

TD-120-0150L TD-230-0150C

WB05HS-001 WB01HS-001

35

EXPLODED VIEW

T001

S011

S010

C013

C012

C011

F001

S001

F011

F012

F014

S007

S001

F002

F016

F020

F017

F018

S012

C009

S011

C010

S010

S009

S002

S001

S002

C006

S001

C007

C008

S005

S006

S004

R001

S002

R005

R004

S012

R003

R002

S013

R006

S001S002

F003

F004

F011

F006

F014

F010

F009

F007

F008

S003

F013

S007

C005

S001

C014

S002

C001

S008

S001

C002

C003

C004

S001

EXPLODED VIEW PARTS LIST

36

REF.NO PART NO. DESCRIPTION Qty. REF.NO PART NO. DESCRIPTION Qty.

C001

C002

C003

C004

C005

C006

C007

C008

C009

C010

C011

C012

C013

C014

66-065001-0

66-001004-1 Base Cover

75-010004-0 Foot

78-001002-0 Foot Pad

01-32501-10 Main Board Assy(AH)

01-32501-20 Main Board Assy(C)

01-32505-10 Power PCB (AH)

01-32505-20 Power PCB (C)

70-065003-0 Heatsink

66-001009-0 Clamper

66-001010-0 Transformer Bracket

67-003006-0 Shielding Box

18-32515-10 Transformer(AH)

18-32515-20 Transformer(C)

66-001008-0 Metal Disc

94-001004-2 Transformer Label

75-065001-0 PCB Spacer

Chassis 1 F016 01-32503-00 KEY BOARD ASSY 1

1 F017

4 F018

4 F019

1 F020

1

1

1

1 R001

1

1 R002

1 R003

1 R004

1 R005

1

1 R006

1

74-065001-0 Power Button

92-048001-0 Spring For Button

01-32508-00 Standby Board Assy

01-32504-00 Phone Board Assy

67-065001-0

67-065002-0

11-01101-03 Rocker Switch

17-07002-10

84-001002-0 Relief Bushing

15-02251-20

15-10121-10

30-63200-00 Shorting Plug

Rear PanelAH

Rear PanelC

AC OutletAH

AC CORDC

AC CORDAH

1

1

1

1

1

1

1

1

1

1

1

2

T001

F001 77-065002-0 Fascia 1

F002

F003 77-001007-1 Power Button Bezel 1

F004 77-065001-0 Input Button Lozenge 1 S001

F005

F006 73-014001-1 Tone Knob 3 S003

F007

F008

F009

F010

F011

F012

F013

F014 01-32509-00 IPOD BOARD PCB 1 S011

F015 01-32507-00 IR BOARD ASSY 1 S012

66-065002-0 Subfascia

74-001001-1

73-014002-1 Volume Knob

77-001001-1 Tone Control Lozenge

76-003001-0 LED Lens

76-001001-0 IR Lens

76-001002-0 LED Lens

74-047001-0 Trio Buttons

74-001008-0 Quad Buttons

Tone Button 1 S002

1

1 S004

1 S005

2 S006

1 S007

8 S008

1 S009

1 S010

S013

67-065004-0

61-023106-0 Self Taping Screw STB3X6

61-023208-0 Self Taping Screw BTB3X8

61-023108-0 Self Taping Screw STB3X8

61-224516-0 Machine screw HM4×16

63-010410-0

63-020411-0

61-022206-6 Self Taping Screw BTB2.6X6

61-022204-6 Self Taping Screw BTB2.6×4

64-108050-0 Bolt M8×50

63-020820-0

62-010802-0 Nut M8

61-084108-0 Self Taping Screw STPW4×8

61-023206-0 Self Taping Screw BTB3X6

Top cover 1

Plain Washer 4

Spring Washer 4

Spring Washer 8

38

21

4

2

2

2

13

2

1

2

2

2

4

37

Q13
2SC1815GR

D10
1N4148

PROTECT IC CHANGE

R12

Q11
2SA1015GR

R27
10k

Q18
2SC1815GR

R18
100k

10k

R17
100k

R21

220k

D12
1N4148

R10
100k
Q10
2SA1015GR

R13
10k

Q14
2SC1815GR

R19
56k

R11
100k

R15
10K

D13

4.7V

Q19

2SC1815

R26
10k

2SA1015GR

R14
22k

C12

0.22UF

C11
100N

Q12

R28
10k

C10

R20
220k

1N

R22
820k

R24
180k

Q16
2SC1815GR

Q15
2SC1815GR

R25

4.7k

Q17
2SC1815GR

J10
CON8

R23

56K

1234567

8

R16
10k

Protect Module

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

SERVICE MANUAL

37

© NAD 2006

NAD ELECTRONICS LTD

TORONTO

STEREO

AMPLIFIER

C 325BEE