Sony WMEX-7 Service manual

Page 1

WM-EX7

SERVICE MANUAL

Manufactured under license from Dolby Laboratories Licensing Corporation. ÒDOLBYÓ and the double-D symbol a are trademarks of Dolby Laboratories Licensing Corporation.

U.S and foreign patents licensed from Dolby Laboratories Licensing Corporation.

US Model

Canadian Model

AEP Model

UK Model

E Model

Tourist Model

Model Name Using Similar Mechanism WM-EX5

Tape Transport Mechanism Type MT-WMEX7-125

SPECIFICATIONS

Tape section

Frequency response (Dolby NR off) Playback : 30 — 18,000 Hz Output Headphones (REMOTE 2 jack)

General

Power requirements 1.5 V

Dimensions (w/h/d) Approx. 80.2 · 112.2 · 21.45 mm

Mass Approx. 180 g (6.4 oz.)

Load impedance 8 — 300 W

One rechargeable battery or one R6 (size AA) battery

1 ·

4 inches), incl.

projecting parts and controls

Approx. 245 g (8.7 oz) (incl. rechargeable battery and cassette)

Supplied accessories Battery case (1)

Stereo earphones with remote control (1) Battery charger (1) Rechargeable battery NC-6WM, 1.2 V, 600 mAh, Ni-Cd (1) (US, Canadian, and Eupopean model) NH-14WM, 1.2 V, 1,400 mAh, Ni-MH (1) (Korean and other countries model) Rechageable battery carrying case (1) Carrying pouch (1) AC plug adaptor (1) (Except for US, Canadian, European, and Korean model)

Design and specification subject to change without notice.

www.electronicsrepair.net

MICROFILM

CASSETTE PLAYER

Page 2

TABLE OF CONTENTS

1. GENERAL ·········································································· 3

2. SERVICE NOTE······························································· 5

3. DISASSEMBLY

3-1. CASSETTE LID ASSY·················································· 7 3-2. REEL ORNAMENT (B) SLIDER··································7 3-3. CASE ·············································································· 8 3-4. REEL ORNAMENT (B) ASSY······································ 8 3-5. AUDIO BOARD ·····························································8

4. MECHANICAL ADJUSTMENT ·································· 9

5. ELECTRICAL ADJUSTMENT ····································9

6. DIAGRAMS

6-1. BLOCK DIAGRAM ····················································· 10 6-2. SCHEMATAC DIAGRAM ··········································· 12 6-3. PRINTED WIRING BOARD······································· 15 6-4. IC BLOCK DIAGRAMS··············································19 6-5. IC PIN FUNCTION······················································ 22

7. EXPLODED VIEWS

7-1. CABINET BLOCK·······················································24 7-2. AUDIO BOARD BLOCK············································· 25 7-3. MECHANISM DECK BLOCK (MT-WMEX7-125) ···26

8. ELECTRICAL PARTS LIST······································· 27

Notes on chip component replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be damaged by heat.

Flexible Circuit Board Repairing

• Keep the temperature of soldering iron around 270˚C during repairing.

• Do not touch the soldering iron on the same conductor of the circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering or unsoldering.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

— 2 —

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ! LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.

Page 3

SECTION 1

GENERAL

This section is extracted from instruction manual.

— 3 —

Page 4

— 4 —

Page 5

SECTION 2

IC601

IC701

BP701

IC301

IC305

IC303

IC302

BP702

IC801

F side

S704

IC304

Center

R side

Lever (SW)

Center

R side

F side

SERVICE NOTE

[Service Mode]

The service mode enables to operate and check the mechanism of WM-EX7 while the AUDIO board is opened.

1. How to enter the service mode

1) Remove the cabinet referring to section 3 DISASSEMBLY. Open the AUDIO board.

2) Connect the motor and plunger solenoid to the AUDIO board using jumper wires. The motor and plunger solenoid can be easily connected when the extension jig (1-769-143-11) (10 cables are bound as a jig.)

3) Short the service mode land (BP701) and the holder land (BP702) as shown using soldering.

4) Connect DC 1.3 V from a regulated po wer supply to the ‘ and ’ terminals of battery.

5) Remove soldering from the service mode land (BP701).

2. PRE-SET status

The PLAY, FF and REW mode can be entered only from the PRESET status.

1) Check that the lever (SW) is in the center position, and the F/R switch (S704) is also I the center position. When these switches are not in the center position, set them to the center (pre-set) position as follows.

2) Find the position in which the lever (SW) is set (either F or R position). Move the F/R switch (S704) into the position in which the lever (SW) is set.

(3) The lever (SW) can be moved by turning OFF the main power

of the regulated power supply once then back ON. Move the F/R switch (S704) to the center position in synchronism with this timing.

[AUDIO board]

— Side A —

— Side B —

3. FF, REW modes

1) After confirming the “2. PRE-SET status”, press the FF switch or the REW switch.

4. PLAY mode

1) Confirm the “2. PRE-SET status”.

2) When the 9( switch of the remote control is pressed, the lever (SW moves once to the R side then moves to the F side. Move the F/W switch (S704) to the R side in synchronism with the motion of the lever (SW). It enables the system to enter into the PLAY (R side) mode.

Note 1: When you fail to enter the PLA Y mode, re-start from ste p

1) PRE-SET status.

Note 2: When you operate 9(, p, FF, REW switch, use these

switches of the remote control unit as much as possible.

[Lever (SW)]

— 5 —

Page 6

[Tape drive mechanism]

Tape drive mechanism in PLAY mode

Gear (NR)

Gear (Reel) T side

Gear (TA)

Gear (Y)

Flywheel (N) Assy

(REW:Right side/ FWD:Left side)

Gear (TB)

Gear (S)

Clutch Assy (M)

Flywheel (R) Assy

Tape drive mechanism in REW mode

Gear (FR) (REW:Right side)

Gear (NR)

Gear (S)

Gear (Reel) (S side)

Pulley (Reverse)

Gear (Reel) (S side)

Motor Pulle

Tape drive mechanism in FF mode

Gear (TB)

Gear (Reel) (T side)

Gear (Y)

Flywheel (N) Assy

Gear (FR) (FF:Left side)

Clutch Assy(M)

Flywheel (R) Assy

Motor Pulley

Gear (NR)

Pulley (Reverse)

Gear (Y)

Flywheel (N) Assy

Clutch Assy(M)

Flywheel (R) Assy

Pulley (Reverse)

— 6 —

Page 7

SECTION 3

)

DISASSEMBLY

Note : Follow the disassembly procedure in the numerical order given.

SET

CASSETTE LID ASSY

REEL ORNAMENT (B) SLIDER

3-1. CASSETTE LID ASSY

Cassette lid assy

Remove the lid

from the protrusion

CASE

REEL ORNAMENT (A) ASSY AUDIO BOAR

Screws, 2 pcs (IB lock)

3-2. REEL ORNAMENT (B) SLIDER

Screw, 1 pc (IB lock)

Screw, 1 pc (IB lock

Reel ornament (B)

Slider

Remove the CUSHION(7L) with tweezer.(Pull off)

— 7 —

Page 8

3-3. CASE

(

Remove it while pressing A.)

3-4. REEL ORNAMENT (A) ASSY

Reel ornament (A) ass

Battery lid

Screws, 4 pc (M1.4 × 1.6)

3-5. AUDIO BOARD

Case

Screw, 1 pc (IB lock)

Remove soldering of the leaf switch at the two points.

!º

AUDIO board

Remove soldering at the two points.

!¡

SUB board

Battery terminal plate assy

Remove soldering of the plunger

solenoid at the two points.

Screw, 1 pc

Battery terminal plate

(minus - terminal of the size C battery)

Lever (Switch)

Remove soldering of the motor terminal

at the seven points.

Note: When re-assembling

the parts, confirm that the knob of the switch (S707) has securely entered into the groove of the lever (SW).

Screw, 1 pc (IB lock)

Flexible board

— 8 —

Page 9

SECTION 4

MECHANICAL ADJUSTMENT

SECTION 5

ELECTRICAL ADJUSTMENT

SECTION 6

WM-EX7

DIAGRAMS

PRECAUTION

1. Clean the following parts with a denatured-alcohol-moistened swab:

record/playback head pinch roller rubber belts capstan

2. Demagnetize the record/playback head with a head demagnetizer.

3. Do not use a magnetized screwdriver for the adjustments.

4. After the adjustments, apply suitable locking compound to the parts adjusted.

5. The adjustments should be performed with the rated power supply voltage unless otherwise noted.

• Torque Measurement

Mode

FWD FWD

Back Tension

REW REW

Back Tension

FF, REW

Torque Meter

CQ-102D CQ-102D CQ-102C CQ-102C CQ-201B

Meter Reading

18 to 30 g•cm

0.7 to 2.0g•cm 18 to 30 g•cm

0.7 to 2.0 g•cm

More than 35 g•cm

PRECAUTION

1. Specified voltage: 1.3 V

2. Switch position F/R select switch: FWD

Test Tape

Tape

WS-48A

Signal

3 kHz, 0 dB

purpose

Tape Speed Adjustment

Procedure:

Test tape

WS-48A

(3kHz, 0dB)

Set

PHONES jack

Frequency counter

Ω

+ –

1. Playback WS-48A (Tape center part) in the FWD state and adjust RV601 so that the frequency counter reading becomes 3000 ± 15 Hz.

2. Playback WS-48A (tape center) in the REV state. Check that frequency counter reading is within 2.5% of reading of step 1.

Adjustment Point:

[AUDIO BOARD] — SIDE B —

IC303

IC302

IC305

RV601

IC301

IC701

IC601

6-1. BLOCK DIAGRAM

HP301

PLAYBACK

S707

ATS

S702

HOLD

Q603,605

MOTOR

SPEED

CONTROL

Q604

MOTOR SWITCH

M901

CAPSTAN/

REEL

W V U

Q601

MOTOR

SWTICH

13 11

1 2 3 4 5 6

1.5V

S701

KEY

28 29 30

31 32 34 21

FWD L

FWD R

REV R

REV L

Q301

AUDIO

PW SW

Q302-304

CI1 CI2

UT VT WT

W OUT V OUT U OUT MC ENTER

AMS AMP

IC601

MOTOR SERVO

18 22 15 29

VREF

LED1

LED2

W IN

V IN

U IN CTRL1 CTRL2

PSIG

REF OUT AMS DET PW SE

Q315

M/N

CONTROL

1011

24 25 26 18 17 20

IC301

AUDIO AMP

Q312

EQ AMP

CTL

FOR AMS

J701(1/2) PHONES/

REMOTE

RJ601

MOTOR

SPEED

(1/2)

14 2

16 26

MUTE SW

AMS OUT

Q101

EQ AMP

CONT Q201

EQ AMP

CONT

REMO

DATA

S704

F/R

S705

DOLBY

PH701

T REEL

SENS

PH702

S REEL

SENS

FWD

REV

OFF

Q705

Q709

Q704 DATA

CONTROL

S703

HOLDER

S706

A/B

Q602

MOTOR

START

Q706

IC303

DOLBY SW

IC302

DOLBY AMP

VCC

(1/2)

1 3

DOLBY CTL DDC CTL

14 54

F/R CTL MUTE CTL

AMS IN

AMS CTL

KEY IN

61 50

WAKE UP

R DATA

RMUM

FWD SW

REV SW

DOLBY SW

A/B SW

PHOTO IN(T)

PHOTO IN(S)

MOTOR

START

MOTOR W

MOTOR V

MOTOR U

CTL1

CTL2

P-SIG

Q306

DOLBY

PW SW

IC701

SYSTEM CONTROL

BOOST CTL

BATT DET1

BATT DET2

BATT CTL

LOAD CTL

PARA CTL

PARA DDC

43 46

SOUND1

SOUND2

RESET

2 4 5

62 55

PM CTL

18 16

Q712

X701 4MHz

IC304

SOUND SW

IC305

BOOST AMP

1 2

Q313 HIGH

CONTROL

Q308

BOOST

GAIN CONT

IC704

RESET

HPL DET

4 3

HPR

LP GAIN

VCC

IC703

STOP

1 3

DETECT

IC702

4 8 3

VOLTAGE

DET

1 7

Q707,708

LOAD

CONTROL/

DRIVE

IC802

2 3 10 12

REG

Q801

DDC CLT

Q701,702

DRIVE

Q305

BOOST PW SW

IC801

DC/DC

CONVERTOR V OUT VC

MODE

1.5V

IC303

VOL SW

Q202

VOL

CONT

Q703

DDC CTL

DC/DC CONV.

Q711,D701,703

(2/2) (2/2)

Q102

VOL

CONT

Q710

PARA

RECHARGEABLE

BATTERY

AUDIO AMP

10 6

32 31

1.5V RIPPLE

FILTER

Q309

S708 AVLS

F701

0.25A

IC301

RFOUTRF BASE

DRY BATTERY

SIZE AA

(IEC DESIGNATION R6)

1.5V

• Signal path

FB201

FR MODEL

DC IN 1.5V

– +

: PB

R250

EXCEPT

R150

L-CH

R-CH

VCC

FB101

FR MODEL

J301(2/2)

PHONES/ REMOTE

— 9 — — 10 — — 11 —

Page 10

WM-EX7

6-2. SCHEMATIC DIAGRAM

(IEC DESIGNATION R6)

IEC JIS R6

MAIN BOARD

IC703

STOP DETECT

B+

Q701,Q702

PLUNGER DRIVER

Q701

2SA1362YG

1.5 0

0.9

TP8 VCC

B+

UN5215-RS-TX

Q601

2SB1386-

T100-R MOTOR SWITCH

TP7 TW

LOAD DRIVE

R713

B+

Q702

3.3

DRY BATTERY

SIZE"AA"

1P,1.5V

1.5V

NBL-2061

C U V W TU TV TW

D702

MA111

Ni-MH NH-14WM

GND-P

R714 1k

2SK2152-TD

GND

C609 1u(B)

TP1

TP32

Q710

PARA SW

TP9

0.6

TP2 U

TP4 W TP5 TU TP6 TV

B+

7.5

1.5

TP3 V

IC703

XC61AS0VXXMR

C703 1u(F)

R801 1.5M

Q703

MSD1819A-RT1

DDC CTL SW

Q707

1.5

2SA1362YG

UN5215-RS-TX

LOAD CONTROL

B+

3456789101112131415

C801

0.0.47u(B)

IC801

DC/DC

CONVERTOR

Q708

4.4

0.7 0

0.6

R717

7.5

UDZ-TE

-17-12B

0.6

0.4

0.6

0.4

0.6

0.4

1.5

R719

100k

IC702

VOLTAGE DETECT

GND

OUT4

1.2 RIPPLE

OUT3

1.4

OUT2

1.5

OUT1Vcc

MM1305BWBE

C802 0.01u(B)

C803 0.047u(B)

IC801 MPC1850DTBEL

C3H

C2H

C1H

C2L

GND

COL

1.9

COH

2.6

VOUT

2.5

MODE

C807

22u 4V

R718

D703

470k

R728 470K

C705

0.1u (B)

Q604

MDC06TR

MOTOR SWITCH

9 10 11 12 13 14

MA111

7 6 5 4 3 2 1

D701

IC702

3.2

1.9

0.6

1.5

C805

15u 6.3V

L701

100uH

1.3

MSD1819A-

Q711

DC/DC

CONVERTOR

1.5 1

0.6 1

0.6

C804 4.7u 6.3V

R804 100k

2.6

DDC CTL SW

R727 1k

Q711

RT1

2.6

R706 100k

R705

47k

Q801

R720 100k

R703 100k

R708 220K

IC802

REGURATOR

22u 4V

2.6

R803 220k

IC802

XC62FP2002MR

Q801

XN4601

0.5

R802 220k

C707 1u(F)

1 1 1 10 0.5 0.6

27 26 25 24 23 22 21 20 19

0.4

0.6

UIN

PGND VT WT WOUT VOUT NC UOUT

Vcc1

123456789

C606 0.01(B)

C806

VIN

WIN

GND

IC601

MORTOR SERVO

IC601

LB1899M-TLM

WSOFT

VSOFT

USOFT

1.2 2 11.2 1.5

C608

C607

0.01(B)

TP10 DDC OUT

R601

220k

MC ENTER

Vcc2

1.61.5 1.3

0.01(B)

PSIG

LED1

CTRL1 CTRL2

VREF LED2

IC704

RESET

C709 2.2uF

IC704

PST9015NL

1 23

C702 1u(F)

X701 4MHz

S706

A/B

R707 470k

C601

1000p

(B)

1.5

1828 1729

1630 1531

1432

1333

CI2 CI1

11 10

RB601 100k

B+

1.9

B+

Q602

MOTOR START SW

0.3

R604

1.1

100k

1.1

C603 0.1u

R606 100k

1.1

1.1 R607 22k

0.3

R610 910k

1.1

RV601 330k

SUB BOARD

C710

0.1u(B)

C704

B+ B+

1.9

123456

1.9

0.7

0.9

1.9

2 0 0

C602

3.3u

6.3V

7 89

10 111213141516

OFF

R704

470k

R611 1M

0.047u(B)

R608 270k

AVcc RESET MODE0 MODE1 X0 NC NC X1 Vcc X0A NC NC X1A DOLBY CTL PARA DDC PARA CTL

DOLBY NR

1.1

R605

22k

C604

2200p(CH)

KEY IN

BATT DET2

MOTOR START

SOUND2

SOUND1

PM CTL

0 0 0 1 1 1.8 1.8

S705

R602 470k

R603 1M

1.1

Q602

2SB1218A

-QRS

C610

0.1u(B)

C701 1u (F)

AVR

1.9

AVss

BATT DET1

IC701

SYSTEM CONTROL

IC701

MB89135LPFV-G-427BND

RDATA

MOTOR-W

LOAD CTL

02 1

PH702 PR-20-T

R725

R726 560k

R711 470k

R712 470k

MOTOR START SW

Q603

2SB1218A-QRS

R609 100k

0.3

R612 470k

R613

R614

Q605

220k

UN5215

Q603,Q605

MOTOR SPEED CONTROL

1.4

Vss 25

1.1

R615

1.2

BATT CTL

MOTOR-V

R701

Q709

UN5215

TP13

PHOTO-S

BP701

SERVICE

R732

0.6

F/R CTL

MUTE CTL

MOTOR-U

NC 28

TP11

REV SW

470k

1.9

C605

15u

6.3V

15k

0.8

P-SIG

PHOTO IN(S)

R702

1.9

1.7

360(0.5%)

P-SIG

BOOST CTL

DOLBY SW

PHOTO IN(T)

1.8 1.8

470k

FWD

R723

1.9

1.8

Q705,Q709 INVERTER

S702 HOLD

R710

R716 22k

(0.5%)

HOLDER

WAKE UP

BEEP

NC DDC CTL AMS CTL

AMS IN

NC NC

RMUM

CTL2 CTL1

A/B SW

REV SW

FWD SW

TP12

FWD SW

REV

S704

F/R

PH701 PR-20-T

R724

560k

Q705

UN5215

1.9 TP14

PHOTO-T

484746

0 0

1.9

45444342

1.9 2

1.8

414039383736353433

0.7

0.6

1.9

1.6 0

1.9

C706

0.047u(F)

R715 470k

S703

TP33

DDC CTL

TP15 DOLBY SW

INVERTER

Q706

MSD1819A-

RT1

S701 OPR

Q312

2SB1218A-QRS

EQ AMP CTL FOR AMS

R324 220k

B+ B+

R709 470k

BP702

HOLDER

R730 470k

TP16

AMS

R729 220k

C708 220p (B)

R313 470k

C303

0.047u (B)

Q302

1.4

MSB1218A-RT1

0.8

0.3

Q304

2SD1819A-R

R318 470k

R323 470k

R30610k

R731 220k

0.5

R204

22k

R301 100k

R302 390

1.4

0.047u(B)

0.8

Q303

2SD1819A-R

Q302,Q303,Q304

AMS AMP

R305

10k

R308 10k

R322 47k

1.3

2SA1362YG

1.4

DOLBY AMP

0.3 0 0.6 0.5

1413121110

Vcc

IC302 NJM2185AV-TE2

GND

1234567

000

C306 1000p

Q712

MSD1819A-RT1

R212

22k

0.7 0.7

R104

22k

C304 68p (CH)

C302

C310

4.7u 4V

1.9

MSB1218A-RT1

1.4

M/N CONTROL

1.9

TP17 ATS

Q306

IC302

C205 1u(F)

0.5 0.3

Vext

IN-R

IN-L

Vref

Iref

0.8

0.6

C105

1u(B)

(0.5%)

C305 10u 4V

R307 36k

R211 2.2k

0.8

R110

R111 2.2k

0.7

Q202

MSD1819A

-RT1

MSD1819A

C114 220p (B)

C214 220p (B)

C104

R102

47u 2.5V

150

0.5

33k

0.5

Q201

MSD1819A-

RT1

R210

C322

33k

1000p (B)

FB302

Q315

C206

0.47(B)

DC-R

OUT-R

0.5

DC-L

OUT-L

C106

0.47u(B)

R112 22k

1.3

Q102

-RT1

C103

0.022u(B)

Q101

MSD1819A-

RT1

0.5 R203 10k

0.5 C204 47u 2.5V

0.1

DET-R

0.1

DET-L

0.4

Q102,Q202 VOL CONT.

C213 2.2u (F)

R101 7.5k

R103 10k

R202 150

C102

470p (B)

FWDREV

R722 100k

C207

0.22u(B)

C107

0.22u(B)

0.7

0.5

7.5k

R201

C203

0.022u(B)

C301

47u 2.5V

470p (B)

B+

IC303

TC74HC4066AFS

0.5

R312 470k

C113 2.2u (F)

C309 0.1u (F)

0.7

BST NF PW IN-L

0.8

LPF1

PW IN-R

PRE NF-L

0.5

PRE OUT-L

0.7

AMS DET

PRE OUT-R

C201 470p

C101

CN301 6P

HP LchRchLch Rch

DOLBY,VOL SW

LPF2

TP27

1.5

1.9

IC303

B+

R107

33k

0.5

0.7

121314

11 4ch

3ch

4ch

Vcc

CTL1

CTL4

0.7

CTL3

CTL2

GND

2ch

1ch

2143576

0.5

R206

2.2k

R207

33k

C109 4.7u (F)

R121 2.2

C311 22u 4V

C115 0.1u (B)

0.70.7

0.6

5678

GND

BST OUT

AGC TAU

PW OUT-L

IC301

AUDIO AMP

IC301

BA3632K-E2

NF-R

PRE

0.7

REV-L

FWD IN-L

FWD IN-R

REV IN-R

REV IN-L

0.7 0.7 0.7 0.8 0 2 1

TP28 REV-R

TP31 REF

TP29

FWD-R

TP30 FWD-L

Q704

XN4315

DATA

CONTROL

R106

2.2k

R311 470k

R221 2.2

C215 0.1u (B)

1.5

0.6

1234

RF BASE

PW NF

PW OUT-R

RF OUT

PW SW

MUTE SW

BST SW

F/R SW

AMS OUT

REF OUT

REF IN

2423222120191817

C316 2.2u 10V

B+

Vcc

CTL1

1ch

1ch 2

00 0 0

DOLBY OUT-L

IC304

SOUND SW

IC304

TC74HC4066AFS

C312

22u

C321

1u (F)

B+

0.9

Vcc

1.8

RF IN

1.8

27 26

PRE

MUTE

4.7u (F)

DOLBY OUT-R

0.80.8

101112

4ch

CTL4

CTL2

2ch

543

TP26

1.5

RIPPLE FILTER

1.4

C314 4.7u 4V

R315 220k

R316 100k

TP20 VOL MAX

TP21 AVLS

B+

C209

TP25

0.8

3ch

GND

CTL3

HIGH CONTROL

Q309

2SB815B7-TB

C313 22u 4V

AUDIO PW SW

1.8

TP19 REMO

S708

D704

MA111

R317 10k

C108

2.2u (F)

C208

2.2u (F) IC305

LA3550MTP-1

R208 1k

R108 1k

R209 100k

R109 100k

Q313

XN1217

C315

0.047u(B)

Q301

MSD1819A

-RT1

0.6

R320 220k

B+B+

TP18

0.3

C210 2200p

C110 2200p

1.7

0.3

DATA

VOL

0.3

OUT-L

OUT-RIN-R

IN-L

0.3

C111 3300p

1.7

D201

UDZ-TE-

17-12B

B+

F701 0.25A

R721 1k

MAX

NORM

MIN

1.7

0.3

C319 3.3u 6.3V

C318 10u 4V

0.3

1011121314

REF

DET-IN

DET-OUT

LP-IN

HP-L

HP-R

543

0.3

0.7

(B) u

C211 3300p

C320 0.033

UDZ-TE-

17-12B

C711 1u (F)

C712 1u (F)

B+

R205 68k

Q305 2SB1218A-QRS BOOST PW SW

IC305

BOOST AMP

0.3

Vcc

GND

LP-OUT

LP-GAIN

C308 0.022u(B)

0.7

R309 100k

C307

Q308

4.7u

XN1217

R304

22k

R303

3.9k

R310 220k

D101

FB301

R105 68k

0.3

C317 1u(F)

C116 100u

2.5V

R122

6.8k

MODEL

FB101

R150 27

MODEL

TP23 Lch

TP22 COM

TP24 Rch

EXCEPT FR

MODEL

Q308 BOOST GAIN CONT.

C216 100u

2.5V

R222

6.8k

R250 27

Vcc DATA REMO

GND COM

Lch

Rch

FB201

J301

REMOTE

• Waveform

4 MHz

0.1µsec/div 1V/div

2.2Vp-p

2 IC801 5

28 kHz

W or less unless otherwise

Note:

Les composants identifiés par une marque ! sont critiques pour la sécurité. Ne les remplacer que par une piéce portant le numéro spécifié.

1 IC701 5

Note:

• All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.

• All resistors are in Ω and 1/ specified.

• % : indicates tolerance.

• C : panel designation.

Note:

The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified.

• U : B+ Line.

• H : adjustment for repair.

• Power voltage is dc 1.5 V and fed with regulated dc power supply from battery terminal. no mark : PLAY

• Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances.

• Circled numbers refer to waveforms.

• Signal path. E : PB

• Abbreviation FR : French

10µsec/div 1V/div

1.6Vp-p

— 12 — — 13 — — 14 —

Page 11

Page 12

WM-EX7

ON/ OFF

40k

8.8k

40k

3 4

6 7

12 11

OUT-1

OUT-2

DET IN DET OUT

REF

VCC

GND

LP-OUT

LP-GAIN

LP-IN

HP-L

HP-R

IN-2

IN-1

8.8k

50k

6-4. IC BLOCK DIAGRAMS

IC301 BA3632K-E2 IC601 LB1899M IC302 NJM2185AV-TE2

V+

AMS OUT

BIAS IN

BIAS OUT

FWD IN1

FWD IN2

REV IN2

REV IN1

PRE NF2

24 23 22 21 20 19 18 17

VCC

PRE MUTE

FWD/REV

LOW BST

200k

25k

–

200k

–

COMP

PRE OUT2

AMS DET

PRE OUT1

BIAS

PWR MUTE

PRE NF1

SYSTEM CONTROLRIPPLE FILTER

PW SW

RF IN

RF OUT

RF BASE

–

30k

+ –

210k 3k

VDET

–

COMP

90k90k

45k

–

30k

PWR IN1

LPF1

PWR IN2

BST NF

1 2 3 4 5 6 7 8

VCC

PWR NF

PWR OUT1

IC702 MM1305BWBE IC801 MPC1850DTBEK IC305 LA3550MT

BST OUT

GND

LPF2

RGC T AU

PWR OUT2

— 19 — — 20 — — 21— — 22 —

GND

Circuit

IREF

VEXT12INA

BIAS

VREF3INB

OUTA

1011

+ –

SUM

Ach BLOCK

Bch BLOCK

OUTB

DCA

G1G2 V/I

Weight

(same Ach)

DCB

DETA

– +

DETB

6-5. IC PIN FUNCTION

• IC701 MB89135LPFV-G-427BND (AUDIO BOARD)

Pin No.

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47

Pin Name

AVCC

RESET MODE0 MODE1

X0 NC NC

X1 VCC X0A

NC X1A

DOLBY CTL

P ARA DDC

PRA CTL

PM CTL SOUND1 CTL SOUND2 CTL

LOAD CTL

RDATA

MOTOR-U

VSS

MOTOR-V

MOTOR-W

NC PHOTO IN (S) PHOTO IN (T)

FWD SW

REV SW

A/B SW

CTL1 CTL2

RMUM

AMS IN

DOLBY SW

AMS CTL DDC CTL

BOOST CTL

BEEP

I/O

—

Power supply terminal of A/D converter.

Reset input terminal.

Test input terminal. (Connected directly to Vss).

—

Terminal to which external main clock is connected. (4 MHz).

—

Terminal to which external main clock is connected. (4 MHz).

—

Power supply terminal.

—

Terminal to which external sub clock is connected. (32.768 MHz).

—

Terminal to which external sub clock is connected. (32.768 MHz).

DOLBY control output. (OFF = H, ON = L).

Oscillator circuit control output for power supply voltage selection. (During operation = intermittent output).

Control output to power supply selector circuit. (Parallel connection OFF = H, Parallel connection ON = L).

Plunger solenoid control output. (OFF = L, ON = H).

Sound quality control output. (During MB, GROOVE = H, Other modes = L).

Sound quality control output. (During GROOVE = H, Other modes = L).

Remaining battery detection output. (When detected = H).

Communication data output to LCD remote control.

Motor control output. (3-state).

—

Power supply (Ground).

Motor control output. (3-state).

Rotation detection input. (Supply side).

Rotation detection input. (Takeup side).

Mode status input of MD. (FWD PLAY mode = L).

Input from tape side-A/B detection switch. (When side-A is on top = L, When side-B is on top = H).

Mode selector output from servo IC. (3-state)

Remote control connected or not-connected. (During when issuing request to re-send = L).

Input from the present or absence detector of music on tape. (Music present = PULSE, No music = H).

Input from DOLBY switch. (OFF = H, ON = L).

AMS sensitivity selection output. (During FF/REW mode = L, Other modes = H).

DDC oscillating frequency change output. (During STOP = L, During operation = H).

Sound quality control output. (During OFF = H, During REVIVE, MB, GROOVE = L).

Beep sound output. (f = 1.6 kHz).

Description

Page 13

Pin No.

48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

HOLDER

WAKE UP

P-SIG P-SIG

MUTE CTL

F/R CTL

BATT CTL

AVSS

AVR

BATT DET1

KEY IN

BATT DET2

MOTOR START

I/O

Input from cassette lid open/close switch. (Close = L, Open = H).

Input signal to for the system into the NORMAL mode during FF/REW. (PLAY = L, FF/REW = H).

Motor control input. (For controlling the three-phase of motor).

Motor control input. (For P-SIG count).

I/O

MUTE control output. (MUTE OFF = INPUT, MUTE ON = L).

I/O

Head selector output. (During FWD = INPUT, During REV = L).

I/O

ON/OFF control of the BATT detector circuit. (Intermittent output during PLAY).

—

Power supply terminal of A/D converter.

—

Reference voltage input terminal of A/D converter.

Input from voltage detection. (A/D input). Detects 0.95 V and 1.06 V.

Key input terminal. Used as the test mode terminal too.

Input from voltage detection. (A/D input). Detects 1.21 V, 1.245 and 1.275 V.

Motor startup output. (N-ch open drain output). (During startup = L).

DescriptionPin Name

— 23 —

Page 14

NOTE:

• -XX, -X mean standardized parts, so they may have some differences from the original one.

• Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items.

• Color Indication of Appearance Parts Example: KNOB, BALANCE (WHITE) . . . (RED)

↑ ↑

Parts of Color Cabinet’s Color

SECTION 7

EXPLODED VIEWS

• The mechanical parts with no reference number in the exploded views are not supplied.

• Hardware (# mark) list and accessories and packing materials are given in the last of this parts list.

• Abbreviation CND : Canadian FR : French KR : Korean JEW : Tourist

When indicating parts by reference number, please include the board name.

The components identified by mark ! or dotted line with mark ! are critical for safety . Replace only with part number specified.

Les composants identifiés par une marque ! sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.

7-1. CABINET BLOCK

Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks

1 3-019-066-01 CASE (SILVER) 1 3-019-066-11 CASE (BLUE) (KR, JEW) 1 3-019-066-21 CASE (ORANGE) (KR, JEW) 1 3-019-066-31 CASE (GREEN) (KR, JEW) 2 3-019-334-01 ORNAMENT (TERMINAL)

3 3-704-197-01 SCREW (M 1.4 × 1.6), LOCKING (SILVER) 3 3-704-197-03 SCREW (M 1.4 × 1.6), LOCKING (KR, JEW)

(BLUE, ORANGE, GREEN) 4 3-019-080-01 KNOB (DOLBY) (SILVER) 4 3-019-080-11 KNOB (DOLBY) (BLUE) (KR, JEW) 4 3-019-080-21 KNOB (DOLBY) (ORANGE) (KR, JEW)

4 3-019-080-31 KNOB (DOLBY) (GREEN) (KR, JEW) 5 3-019-058-01 SLIDER (OPEN) 6 X-3374-500-1 ORNAMENT (A) ASSY, REEL

7 X-3374-995-1 CASSETTE LID ASSY (SILVER) 7 X-3374-996-1 CASSETTE LID ASSY (BLUE) (KR, JEW) 7 X-3374-997-1 CASSETTE LID ASSY (ORANGE) (KR, JEW) 7 X-3374-998-1 CASSETTE LID ASSY (GREEN) (KR, JEW) 8 3-019-059-01 ORNAMENT (B), REEL

9 3-939-590-48 SCREW (IB LOCK) 10 3-939-590-35 SCREW (IB LOCK) 11 3-939-590-05 SCREW (IB LOCK) 12 3-019-076-01 KNOB (HOLD) 13 3-019-077-01 KNOB (VOL)

14 3-022-298-01 CUSHION (7F) 15 3-022-024-01 SHEET (7I) 16 3-022-297-01 CUSHION (7L) 17 3-022-381-01 CUSHION (7M)

— 24 —

Page 15

7-2. AUDIO BOARD BLOCK

MT-WMEX7-125

Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks

51 3-939-590-05 SCREW (IB LOCK) 52 3-009-690-01 TERMINAL BOARD, BATTERY 53 X-3374-170-1 TERMINAL BOARD ASSY, BATTERY 54 3-019-057-01 LID, BATTERY CASE (SILVER) 54 3-019-057-11 LID, BATTERY CASE (KR, JEW) (BLUE)

54 3-019-057-21 LID, BATTERY CASE (KR, JEW) (ORANGE) 54 3-019-057-31 LID, BATTERY CASE (KR, JEW) (GREEN) 55 A-3061-570-A MAIN BOARD (US, CND, AEP, UK, E, KR, JEW) 55 A-3061-723-A MAIN BOARD (FR) 57 3-007-282-01 TERMINAL BOARD (MINUS), BATTERY

58 3-020-751-01 CASE (MINUS) 59 X-3374-551-1 BRACKET (B) ASSY 60 X-3374-498-1 HOLDER ASSY 61 3-928-465-01 DETENT, CASSETTE 62 3-020-791-01 COVER (EX7), MD (JEW)

62 3-020-791-11 COVER (EX7), MD (AEP, UK, FR) 62 3-020-791-21 COVER (EX7), MD (US, CND, E, KR) 63 1-762-793-22 SWITCH, LEAF 65 X-3374-499-1 BRACKET (A) ASSY 67 3-366-890-01 SCREW (M1.4)

69 3-389-523-16 SCREW (IB LOCK) 70 3-375-114-41 SCREW 71 3-010-520-01 COVER, SW 72 3-389-523-06 SCREW (IB LOCK) 73 3-704-197-01 SCREW (M 1.4 × 1.6), LOCKING

74 3-022-023-01 SHEET (HOLDER SPRING), ADHESIVE 75 3-022-027-01 CUSHION (7K) 76 3-012-226-01 SPACER

* 77 1-667-827-11 SUB BOARD

— 25 —

Page 16

7-3. MECHANISM DECK BLOCK (MT-WMEX7-125)

107

109

108

110

106

105

103

104

123

111

130

102

101

124

115

114

122

131

128

132

HP301

125

129

130

137

PM901

134

128

116

117

118

127

135

136

119

134

120

M901

121

Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks

101 3-011-277-11 COVER (B) (Y), MD 102 3-022-104-01 SCREW (M1.4), PRECISION 103 X-3374-675-1 PINCH LEVER (N) ASSY 104 3-007-434-01 PULLEY (REVERSE) 105 3-007-428-01 WASHER (R)

106 X-3374-596-1 FLYWHEEL (R) ASSY 107 3-007-439-01 SLIDER (LOCK) 108 3-386-694-11 WASHER 109 X-3374-595-1 FLYWHEEL (N) ASSY 110 3-018-177-01 BELT

111 3-007-960-01 SPRING (EJECT) (Y), TORSION 114 3-007-436-01 SPRING (TRIGGER), TORSION 115 X-3374-674-1 CLUTCH ASSY (M) 116 3-016-696-01 GEAR (FRN) 117 X-3372-853-1 LEVER (FRG) ASSY

118 3-007-433-01 SHEET (N), REFLECTION 119 3-007-432-01 SHEET (R), REFLECTION 120 3-019-715-01 SCREW (M1.4), LOCK ACE

121 X-3374-339-1 CHASSIS ASSY (S), OUTSERT 122 3-019-710-01 SPRING (R), TORSION 123 3-007-458-01 SPRING (H/B), TENSION 124 3-019-709-01 SPRING (N), TORSION 125 3-007-454-01 SPRING (FR), TORSION

127 X-3374-676-1 PINCH LEVER (R) ASSY 128 3-010-954-01 SPRING (BT), COMPRESSION 129 3-918-943-01 WASHER, STOPPER 130 3-366-017-01 BUSHING (CAPSTAN) 131 3-007-429-01 WASHER (R), STOPPER

132 3-932-724-21 WASHER 134 3-010-273-02 GEAR (REEL) 135 3-018-174-01 BUSHING (NR) 136 3-018-173-01 GEAR (NR) 137 3-010-274-02 TABLE, REEL

HP301 1-505-795-11 HEAD, MAGNETIC (PLAYBACK) M901 1-763-042-11 MOTOR PM901 1-454-674-31 SOLENOID, PLUNGER

— 26 —

Page 17

SECTION 8

ELECTRICAL PARTS LIST

MAIN

NOTE:

When indicating parts by reference number, please include the board name.

The components identified by mark ! or dotted line with mark ! are critical for safety . Replace only with part number specified.

Les composants identifiés par une marque ! sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.

• Abbreviation CND : Canadian FR : French KR : Korean JEW : Tourist

Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks

A-3061-570-A MAIN BOARD (US, CND, AEP, UK, E, KR, JEW)

***********

A-3061-723-A MAIN BOARD (FR)

***********

< CAPACITOR >

C101 1-162-962-11 CERAMIC CHIP 470PF 10% 50V C102 1-162-962-11 CERAMIC CHIP 470PF 10% 50V C103 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V C104 1-119-663-11 TANTAL. CHIP 47uF 20% 2.5V C105 1-115-156-11 CERAMIC CHIP 1uF 10V

C106 1-113-619-11 CERAMIC CHIP 0.47uF 10% 6.3V C107 1-115-467-11 CERAMIC CHIP 0.22uF 10% 10V C108 1-164-505-11 CERAMIC CHIP 2.2uF 16V C109 1-117-720-11 CERAMIC CHIP 4.7uF 10V C110 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V

C111 1-162-967-11 CERAMIC CHIP 0.0033uF 10% 50V C113 1-164-505-11 CERAMIC CHIP 2.2uF 16V C114 1-162-960-11 CERAMIC CHIP 220PF 10% 50V C115 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V C116 1-117-977-11 TANTAL. CHIP 100uF 20% 2.5V

C201 1-162-962-11 CERAMIC CHIP 470PF 10% 50V C202 1-162-962-11 CERAMIC CHIP 470PF 10% 50V C203 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V C204 1-119-663-11 TANTAL. CHIP 47uF 20% 2.5V C205 1-115-156-11 CERAMIC CHIP 1uF 10V

C206 1-113-619-11 CERAMIC CHIP 0.47uF 10% 6.3V C207 1-115-467-11 CERAMIC CHIP 0.22uF 10% 10V C208 1-164-505-11 CERAMIC CHIP 2.2uF 16V C209 1-117-720-11 CERAMIC CHIP 4.7uF 10V C210 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V

C211 1-162-967-11 CERAMIC CHIP 0.0033uF 10% 50V C213 1-164-505-11 CERAMIC CHIP 2.2uF 16V C214 1-162-960-11 CERAMIC CHIP 220PF 10% 50V C215 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V C216 1-117-977-11 TANTAL. CHIP 100uF 20% 2.5V

C301 1-119-663-11 TANTAL. CHIP 47uF 20% 2.5V C302 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V C303 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V C304 1-162-925-11 CERAMIC CHIP 68PF 5% 50V C305 1-135-201-11 TANTALUM CHIP 10uF 20% 4V

C306 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V C307 1-135-151-21 TANTALUM CHIP 4.7uF 20% 4V C308 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V C309 1-164-156-11 CERAMIC CHIP 0.1uF 25V C310 1-109-935-11 TANTAL. CHIP 4.7uF 20% 4V

• Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set.

• -XX, -X mean standardized parts, so they may have some difference from the original one.

• Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items.

• CAP A CITORS: uF: µF

C311 1-104-847-11 TANTAL. CHIP 22uF 20% 4V C312 1-104-847-11 TANTAL. CHIP 22uF 20% 4V C313 1-104-847-11 TANTAL. CHIP 22uF 20% 4V C314 1-135-151-21 TANTALUM CHIP 4.7uF 20% 4V C315 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V

C316 1-135-149-21 TANTALUM CHIP 2.2uF 20% 10V C317 1-115-156-11 CERAMIC CHIP 1uF 10V C318 1-135-201-11 TANTALUM CHIP 10uF 20% 4V C319 1-135-180-21 TANTALUM CHIP 3.3uF 20% 6.3V C320 1-164-677-11 CERAMIC CHIP 0.033uF 10% 16V

C321 1-115-156-11 CERAMIC CHIP 1uF 10V C322 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V C601 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V C602 1-135-180-21 TANTALUM CHIP 3.3uF 20% 6.3V C603 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V

C604 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V C605 1-107-685-11 TANTAL. CHIP 15uF 20% 6.3V C606 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C607 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C608 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V

C609 1-109-982-11 CERAMIC CHIP 1uF 10% 10V C610 1-164-695-11 CERAMIC CHIP 0.0022uF 5% 50V C701 1-115-156-11 CERAMIC CHIP 1uF 10V C702 1-115-156-11 CERAMIC CHIP 1uF 10V C703 1-115-156-11 CERAMIC CHIP 1uF 10V

C704 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V C705 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V C706 1-164-361-11 CERAMIC CHIP 0.047uF 16V C707 1-115-156-11 CERAMIC CHIP 1uF 10V C708 1-162-960-11 CERAMIC CHIP 220PF 10% 50V

C709 1-164-505-11 CERAMIC CHIP 2.2uF 16V C710 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V C711 1-115-156-11 CERAMIC CHIP 1uF 10V C712 1-115-156-11 CERAMIC CHIP 1uF 10V C801 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V

C802 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C803 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V C804 1-109-935-11 TANTAL. CHIP 4.7uF 20% 6.3V C805 1-107-685-11 TANTAL. CHIP 15uF 20% 6.3V C806 1-104-847-11 TANTAL. CHIP 22uF 20% 4V

C807 1-104-847-11 TANTAL. CHIP 22uF 20% 4V

• RESISTORS All resistors are in ohms. METAL: metal-film resistor METAL OXIDE: Metal Oxide-film resistor F: nonflammable

• COILS uH: µH

• SEMICONDUCTORS In each case, u: µ, for example: uA...: µA... , uPA... , µPA... , uPB... , µPB... , uPC... , µPC... , uPD..., µPD...

— 27 —

Page 18

MAIN

Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks

< CONNECTOR >

CN301 1-766-336-21 CONNECTOR, FFC/FPC 6P

< DIODE >

Q308 8-729-422-45 TRANSISTOR XN1217 Q309 8-729-800-71 TRANSISTOR 2SB815B7-TB Q312 8-729-420-24 TRANSISTOR 2SB1218A-QRS Q313 8-729-422-45 TRANSISTOR XN1217 Q315 8-729-030-54 TRANSISTOR MSB1218A-RT1

D101 8-719-056-89 DIODE UDZ-TE-17-12B D201 8-719-056-89 DIODE UDZ-TE-17-12B D701 8-719-056-89 DIODE UDZ-TE-17-12B D702 8-719-404-49 DIODE MA111 D703 8-719-404-49 DIODE MA111

D704 8-719-404-49 DIODE MA111

< FUSE >

! F701 1-533-792-11 FUSE (SMD)

< FERRITE BEAD >

FB101 1-414-760-21 INDUCTOR CHIP 0UH

(US, CND, AEP, UK, E, KR, JE)

FB201 1-414-760-21 INDUCTOR CHIP 0UH

(US, CND, AEP, UK, E, KR, JE) FB301 1-500-245-11 INDUCTOR 0UH FB302 1-414-760-21 INDUCTOR CHIP 0UH

< IC >

IC301 8-759-497-22 IC BA3632K-E2 IC302 8-759-488-80 IC NJM2185AV-TE2 IC303 8-759-066-57 IC TC74HC4066AFS IC304 8-759-066-57 IC TC74HC4066AFS IC305 8-759-380-15 IC LA3550MTP-1

IC601 8-759-431-31 IC LB1899M-TLM IC701 8-759-488-35 IC MB89135LPFV-G-427BND IC702 8-759-438-27 IC MM1305BWBE IC703 8-759-445-09 IC XC61AS0VXXMR IC704 8-759-460-26 IC PST9015NL

IC801 8-759-440-53 IC MPC1850DTBEL IC802 8-759-488-26 IC XC62FP2002MR

< JACK >

J301 1-779-867-41 JACK (REMOTE 2 )

< COIL >

L701 1-414-008-11 INDUCTOR 100uH

< PHOTO INTERUPTER >

PH701 8-749-014-43 PHOTO REFLECTOR PR-20-T PH702 8-749-014-43 PHOTO REFLECTOR PR-20-T

< TRANSISTOR >

Q101 8-729-030-53 TRANSISTOR MSD1819A-RT1 Q102 8-729-030-53 TRANSISTOR MSD1819A-RT1 Q201 8-729-030-53 TRANSISTOR MSD1819A-RT1 Q202 8-729-030-53 TRANSISTOR MSD1819A-RT1 Q301 8-729-030-53 TRANSISTOR MSD1819A-RT1

Q302 8-729-030-54 TRANSISTOR MSB1218A-RT1 Q303 8-729-402-32 TRANSISTOR 2SD1819A-R Q304 8-729-402-32 TRANSISTOR 2SD1819A-R Q305 8-729-420-24 TRANSISTOR 2SB1218A-QRS Q306 8-729-230-72 TRANSISTOR 2SA1362YG

Q601 8-729-025-88 TRANSISTOR 2SB1386-T100-R Q602 8-729-420-24 TRANSISTOR 2SB1218A-QRS Q603 8-729-420-24 TRANSISTOR 2SB1218A-QRS Q604 8-729-039-36 TRANSISTOR MDC06TR Q605 8-729-420-50 TRANSISTOR UN5215

Q701 8-729-230-72 TRANSISTOR 2SA1362YG Q702 8-729-020-99 TRANSISTOR UN5215-RS-TX Q703 8-729-030-53 TRANSISTOR MSD1819A-RT1 Q704 8-729-422-18 TRANSISTOR XN4315 Q705 8-729-420-50 TRANSISTOR UN5215

Q706 8-729-030-53 TRANSISTOR MSD1819A-RT1 Q707 8-729-230-72 TRANSISTOR 2SA1362YG Q708 8-729-020-99 TRANSISTOR UN5215-RS-TX Q709 8-729-420-50 TRANSISTOR UN5215 Q710 8-729-040-80 TRANSISTOR 2SK2152-TD

Q711 8-729-030-53 TRANSISTOR MSD1819A-RT1 Q712 8-729-030-53 TRANSISTOR MSD1819A-RT1 Q801 8-729-402-84 TRANSISTOR XN4601

R101 1-218-344-11 RES, CHIP 7.5K 5% 1/16W R102 1-216-811-11 METAL CHIP 150 5% 1/16W R103 1-216-833-11 METAL CHIP 10K 5% 1/16W R104 1-216-837-11 METAL CHIP 22K 5% 1/16W R105 1-216-843-11 METAL CHIP 68K 5% 1/16W

R106 1-216-825-11 METAL CHIP 2.2K 5% 1/16W R107 1-216-839-11 METAL CHIP 33K 5% 1/16W R108 1-216-821-11 METAL CHIP 1K 5% 1/16W R109 1-216-845-11 METAL CHIP 100K 5% 1/16W R110 1-216-839-11 METAL CHIP 33K 5% 1/16W

R111 1-216-825-11 METAL CHIP 2.2K 5% 1/16W R112 1-216-837-11 METAL CHIP 22K 5% 1/16W R121 1-216-789-11 METAL CHIP 2.2 5% 1/16W R122 1-216-831-11 METAL CHIP 6.8K 5% 1/16W R150 1-216-802-11 METAL CHIP 27 5% 1/16W

R201 1-218-344-11 RES, CHIP 7.5K 5% 1/16W R202 1-216-811-11 METAL CHIP 150 5% 1/16W R203 1-216-833-11 METAL CHIP 10K 5% 1/16W R204 1-216-837-11 METAL CHIP 22K 5% 1/16W R205 1-216-843-11 METAL CHIP 68K 5% 1/16W

R206 1-216-825-11 METAL CHIP 2.2K 5% 1/16W R207 1-216-839-11 METAL CHIP 33K 5% 1/16W R208 1-216-821-11 METAL CHIP 1K 5% 1/16W R209 1-216-845-11 METAL CHIP 100K 5% 1/16W R210 1-216-839-11 METAL CHIP 33K 5% 1/16W

R211 1-216-825-11 METAL CHIP 2.2K 5% 1/16W R212 1-216-837-11 METAL CHIP 22K 5% 1/16W R221 1-216-789-11 METAL CHIP 2.2 5% 1/16W R222 1-216-831-11 METAL CHIP 6.8K 5% 1/16W R250 1-216-802-11 METAL CHIP 27 5% 1/16W

— 28 —

< RESISTOR >

The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified.

(FR)

Les composants identifiés par une marque ! sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.

Page 19

MAIN SUB

Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks

R301 1-216-845-11 METAL CHIP 100K 5% 1/16W R302 1-216-852-11 METAL CHIP 390K 5% 1/16W R303 1-216-828-11 METAL CHIP 3.9K 5% 1/16W R304 1-216-837-11 METAL CHIP 22K 5% 1/16W R305 1-216-833-11 METAL CHIP 10K 5% 1/16W

R720 1-216-845-11 METAL CHIP 100K 5% 1/16W R721 1-216-821-11 METAL CHIP 1K 5% 1/16W R722 1-216-845-11 METAL CHIP 100K 5% 1/16W R723 1-216-821-11 METAL CHIP 1K 5% 1/16W R724 1-216-854-11 METAL CHIP 560K 5% 1/16W

R306 1-216-833-11 METAL CHIP 10K 5% 1/16W R307 1-218-884-11 RES, CHIP 36K 0.50% 1/16W R308 1-216-833-11 METAL CHIP 10K 5% 1/16W R309 1-216-845-11 METAL CHIP 100K 5% 1/16W R310 1-216-849-11 METAL CHIP 220K 5% 1/16W

R311 1-216-853-11 METAL CHIP 470K 5% 1/16W R312 1-216-853-11 METAL CHIP 470K 5% 1/16W R313 1-216-853-11 METAL CHIP 470K 5% 1/16W R315 1-216-849-11 METAL CHIP 220K 5% 1/16W R316 1-216-845-11 METAL CHIP 100K 5% 1/16W

R317 1-216-833-11 METAL CHIP 10K 5% 1/16W R318 1-216-853-11 METAL CHIP 470K 5% 1/16W R320 1-216-849-11 METAL CHIP 220K 5% 1/16W R322 1-216-841-11 METAL CHIP 47K 5% 1/16W R323 1-216-853-11 METAL CHIP 470K 5% 1/16W

R324 1-216-849-11 METAL CHIP 220K 5% 1/16W R601 1-216-849-11 METAL CHIP 220K 5% 1/16W R602 1-216-853-11 METAL CHIP 470K 5% 1/16W R603 1-216-857-11 METAL CHIP 1M 5% 1/16W R604 1-216-845-11 METAL CHIP 100K 5% 1/16W

R605 1-216-837-11 METAL CHIP 22K 5% 1/16W R606 1-216-845-11 METAL CHIP 100K 5% 1/16W R607 1-216-837-11 METAL CHIP 22K 5% 1/16W R608 1-216-850-11 METAL CHIP 270K 5% 1/16W R609 1-216-845-11 METAL CHIP 100K 5% 1/16W

R610 1-202-931-11 RES, CHIP 910K 5% 1/16W R611 1-216-857-11 METAL CHIP 1M 5% 1/16W R612 1-216-853-11 METAL CHIP 470K 5% 1/16W R613 1-216-857-11 METAL CHIP 1M 5% 1/16W R614 1-216-849-11 METAL CHIP 220K 5% 1/16W

R615 1-216-857-11 METAL CHIP 1M 5% 1/16W R701 1-216-853-11 METAL CHIP 470K 5% 1/16W R702 1-216-853-11 METAL CHIP 470K 5% 1/16W R703 1-216-845-11 METAL CHIP 100K 5% 1/16W R704 1-216-853-11 METAL CHIP 470K 5% 1/16W

R725 1-216-821-11 METAL CHIP 1K 5% 1/16W R726 1-216-854-11 METAL CHIP 560K 5% 1/16W R727 1-216-821-11 METAL CHIP 1K 5% 1/16W R728 1-216-853-11 METAL CHIP 470K 5% 1/16W R729 1-216-849-11 METAL CHIP 220K 5% 1/16W

R730 1-216-853-11 METAL CHIP 470K 5% 1/16W R731 1-216-849-11 METAL CHIP 220K 5% 1/16W R732 1-216-835-11 METAL CHIP 15K 5% 1/16W R801 1-216-859-11 RES, CHIP 1.5M 5% 1/16W R802 1-216-849-11 METAL CHIP 220K 5% 1/16W

R803 1-216-849-11 METAL CHIP 220K 5% 1/16W R804 1-216-845-11 METAL CHIP 100K 5% 1/16W

< CONPOSITION CIRCUIT BLOCK >

RB601 1-236-907-11 NETWORK RESISTOR (CHIP) 100K

< VARIABLE RESISTOR >

RV601 1-225-563-11 RES, ADJ 330K

< SWITCH >

S703 1-762-970-21 SWITCH, PUSH (1 KEY)(HOLDER) S704 1-572-581-11 SWITCH, SLIDE (F/R FWD REV) S705 1-572-922-11 SWITCH, SLIDE (DOLBY NR) S706 1-762-516-11 SWITCH, PUSH (1 KEY)(A/B) S708 1-692-605-11 SWITCH, SLIDE (VOL)

< VIBRATOR >

X701 1-767-289-11 VIBRATOR, CERAMIC 4MHz

************************************************************

* 1-667-827-11 SUB BOARD

**********

< SWITCH >

R705 1-216-841-11 METAL CHIP 47K 5% 1/16W R706 1-216-845-11 METAL CHIP 100K 5% 1/16W R707 1-216-853-11 METAL CHIP 470K 5% 1/16W R708 1-216-849-11 METAL CHIP 220K 5% 1/16W R709 1-216-853-11 METAL CHIP 470K 5% 1/16W

R710 1-218-836-11 RES, CHIP 360 0.50% 1/16W R711 1-216-853-11 METAL CHIP 470K 5% 1/16W R712 1-216-853-11 METAL CHIP 470K 5% 1/16W R713 1-218-608-11 METAL CHIP 3.3 5% 1W R714 1-216-049-91 RES, CHIP 1K 5% 1/10W

R715 1-216-853-11 METAL CHIP 470K 5% 1/16W R716 1-218-879-11 RES, CHIP 22K 0.50% 1/16W R717 1-216-857-11 METAL CHIP 1M 5% 1/16W R718 1-216-853-11 METAL CHIP 470K 5% 1/16W R719 1-216-845-11 METAL CHIP 100K 5% 1/16W

— 29 —

S701 1-771-053-21 SWITCH, KEY BOARD (OPR) S702 1-572-922-11 SWITCH, SLIDE (HOLD)

************************************************************

MISCELLANEOUS

***************

63 1-762-793-22 SWITCH, LEAF HP301 1-505-795-11 HEAD, MAGNETIC (PLAYBACK) M901 1-763-042-11 MOTOR PM901 1-454-674-31 SOLENOID, PLUNGER

************************************************************

Page 20

WM-EX7

Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks

ACCESSORIES &PACKING MATERIALS

*******************************

1-475-465-11 REMOTE CONTROL UNIT (RM-WME7)

! 1-528-252-11 BATTERY CHARGER (BC-7S) (UK)

1-528-299-41 BATTERY, NI-CD (NC-6WM) (US, CND) 1-528-543-22 BATTERY, NI-CD (NC-6WM) (AEP, UK, FR)

! 1-528-580-21 BATTERY CHARGER (BC-7HT) (E, JEW)

! 1-528-676-21 BATTERY CHARGER (BC-9HR) (KR) ! 1-528-713-21 BATTERY CHARGER (BC-7DC) (US, CND) ! 1-528-744-21 BATTERY CHARGER (BC-7DY) (AEP, FR)

1-528-842-11 BATTERY, NICKEL HYDROGEN (E, KR, JEW) 1-569-007-11 ADAPTOR, CONVERSION 2P (E, JEW)

1-759-213-11 CASE, BATTERY 3-008-521-01 CASE, BATTERY CHARGE 3-861-029-01 MANUAL, INSTRAUCTION (JEW)

(JAPANESE, ENGLISH, KOREAN)

3-861-029-11 MANUAL, INSTRAUCTION

(US/CND/AEP/UK/FR) (ENGLISH, FRENCH)

3-861-029-21 MANUAL, INSTRAUCTION (AEP)

(GERMAN, DUTCH)

3-861-029-31 MANUAL, INSTRAUCTION (AEP)

(SWEDISH, ITALIAN)

3-861-029-41 MANUAL, INSTRAUCTION (AEP)

(SPANISH, PORTUGUESE) 3-861-029-51 MANUAL, INSTRAUCTION (AEP) (FRENCH) 3-861-029-61 MANUAL, INSTRAUCTION (E/KR)

(ENGLISH, KOREAN)

3-861-029-71 MANUAL, INSTRAUCTION (E)

(SPANISH, CHINESE) 3-861-153-11 INSTRUCTION (JEW) 3-929-799-01 CASE, CARRYING

8-953-220-90 HEADPHONE MDR-ED132SP//K SET

The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified.

Les composants identifiés par une marque ! sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.

9-923-283-12

Sony Corporation

Personal A&V Products Company

— 30 —

98A1680-1

(Shibaura)