Sony Walkman WM-EX422 Service Manual Download

Page: 15 / 18

WM-EX422

SECTION 7

ELECTRICAL PARTS LIST

MAIN

NOTE :

• 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.

• RESISTORS

All resistors are in ohms
METAL : Metal-film resistor
METAL OXIDE :Metal oxide-film resistor
F : nonflammable

• Items marked “ * ”are not stocked since they

are seldom required for routine service. Some
delay should be anticipated when ordering
these items.

• SEMICONDUCTORS

In each case, u :

, for example :

uA.... :

A.... , uPA.... :

PA....

uPB.... :

PB.... , uPC.... :

PC....

uPD.... :

PD....

• CAPACITORS

uF :

• COILS

uH :

When indicating parts by reference num-
ber, please include the board.

Ref. No.

Part No.

Description

Remark

Ref. No.

Part No.

Description

Remark

A-3683-587-A MAIN PC BOARD ASSY

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

< CAPACITOR >

C100

1-126-236-11 ELECT

330uF

20%

C101

1-162-962-11 CERAMIC CHIP

470PF

10%

50V

C103

1-162-968-11 CERAMIC CHIP

0.0047uF 10%

50V

C104

1-104-847-11 TANTAL. CHIP

22uF

20%

C106

1-115-156-11 CERAMIC CHIP

1uF

10V

C107

1-135-834-91 CERAMIC CHIP

2.2uF

6.3V

C108

1-115-416-11 CERAMIC CHIP

0.001uF

25V

C109

1-165-128-11 CERAMIC CHIP

0.22uF

16V

C110

1-164-227-91 CERAMIC CHIP

0.022uF

10V

C111

1-135-834-91 CERAMIC CHIP

2.2uF

6.3V

C201

1-162-962-11 CERAMIC CHIP

470PF

10%

50V

C203

1-162-968-11 CERAMIC CHIP

0.0047uF 10%

50V

C204

1-104-847-11 TANTAL. CHIP

22uF

20%

C206

1-115-156-11 CERAMIC CHIP

1uF

10V

C207

1-135-834-91 CERAMIC CHIP

2.2uF

6.3V

C208

1-115-416-11 CERAMIC CHIP

0.001uF

25V

C209

1-165-128-11 CERAMIC CHIP

0.22uF

16V

C210

1-164-227-11 CERAMIC CHIP

0.022uF

10V

C211

1-135-834-91 CERAMIC CHIP

2.2uF

6.3V

C301

1-104-847-11 TANTAL. CHIP

22uF

20%

C304

1-104-851-11 TANTAL. CHIP

10uF

20%

10V

C305

1-164-156-11 CERAMIC CHIP

0.1uF

25V

C306

1-135-834-91 CERAMIC CHIP

2.2uF

6.3V

C307

1-125-837-91 CERAMIC CHIP

1uF

10%

6.3V

C308

1-115-467-11 CERAMIC CHIP

0.22uF

10%

10V

C309

1-164-156-11 CERAMIC CHIP

0.1uF

25V

C310

1-165-128-11 CERAMIC CHIP

0.22uF

16V

C311

1-117-720-11 CERAMIC CHIP

4.7uF

10V

C312

1-135-834-91 CERAMIC CHIP

2.2uF

6.3V

C316

1-115-156-11 CERAMIC CHIP

1uF

10V

C322

1-115-416-11 CERAMIC CHIP

0.001uF

25V

C323

1-135-834-91 CERAMIC CHIP

2.2uF

6.3V

C324

1-104-847-11 TANTAL. CHIP

22uF

20%

C325

1-135-834-91 CERAMIC CHIP

2.2uF

6.3V

C330

1-115-156-11 CERAMIC CHIP

1uF

10V

C331

1-165-176-11 CERAMIC CHIP

0.047uF

10%

16V

C601

1-125-837-91 CERAMIC CHIP

1uF

10%

6.3V

C602

1-107-826-11 CERAMIC CHIP

0.1uF

10%

16V

C603

1-115-467-11 CERAMIC CHIP

0.22uF

10%

10V

C604

1-164-156-11 CERAMIC CHIP

0.1uF

25V

C605

1-107-826-11 CERAMIC CHIP

0.1uF

10%

16V

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

C610

1-115-156-11 CERAMIC CHIP

1uF

10V

C701

1-119-750-11 TANTAL. CHIP

22uF

20%

6.3V

C702

1-104-851-11 TANTAL. CHIP

10uF

20%

10V

C703

1-162-915-11 CERAMIC CHIP

10PF

0.5PF

50V

C704

1-107-826-11 CERAMIC CHIP

0.1uF

10%

16V

C705

1-115-156-11 CERAMIC CHIP

1uF

10V

C706

1-115-156-11 CERAMIC CHIP

1uF

10V

C707

1-115-156-11 CERAMIC CHIP

1uF

10V

C708

1-115-156-11 CERAMIC CHIP

1uF

10V

C709

1-135-834-91 CERAMIC CHIP

2.2uF

6.3V

C711

1-115-156-11 CERAMIC CHIP

1uF

10V

< DIODE >

D701

8-719-064-07 DIODE SML-310LTT86 (BATT)

D702

8-719-049-09 DIODE 1SS367-T3SONY

D711

8-719-422-58 DIODE MA8062

D713

8-719-422-58 DIODE MA8062

< FERRITE BEAD >

FB101

1-469-125-21 FERRITE

0UH

FB201

1-469-125-21 FERRITE

0UH

FB301

1-469-125-21 FERRITE

0UH

< IC >

IC301

6-701-831-01 IC TA2160FN(EL)

IC601

8-759-356-46 IC MM1279XVBE

IC701

6-802-989-01 IC ML63512-CFX1749

IC702

8-759-566-77 IC XC6371C251PL

IC703

8-759-430-08 IC PST9008NL

IC704

8-759-280-84 IC S-81211SG-QA-T1

< JACK >

J301

1-580-680-11 JACK (

)

< COIL >

L701

1-412-032-11 INDUCTOR CHIP 100uH

< REFLECTOR >

PH751

8-749-016-61 REFLECTOR NJL5197K-W-F20(TE1)

< TRANSISTOR >

Q101

8-729-230-72 TRANSISTOR 2SA1362YG

Q102

8-729-230-72 TRANSISTOR 2SA1362YG

Q201

8-729-230-72 TRANSISTOR 2SA1362YG

Q202

8-729-230-72 TRANSISTOR 2SA1362YG

Q301

8-729-230-49 TRANSISTOR 2SC2712-YG

Summary of Contents for Walkman WM-EX422

Page 1: ...l projecting parts and controls Mass Approx 124 g 4 4 oz main unit only Supplied accessories Stereo headphones or earphones 1 Hand strap 1 European model only Carrying pouch 1 Asian model only Design and specifications are subject to change without notice Battery life approximate hours Sony alkaline LR6 SG Sony R6P SR Tape playback 35 9 Measured value by the standard of JEITA Japan Electronics and...

Page 2: ...6 EXPLODED VIEWS 6 1 Cabinet Section 13 6 2 Mechanism Deck Section MF WMFX495 147 14 7 ELECTRICAL PARTS LIST 15 Flexible Circuit Board Repairing Keep the temperature of the 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 Notes on chip c...

Page 3: ... set to the center position If not set the preset state as follow 2 Move the MD switch S601 to the side which the slider NRA is facing 3 The slider NRA will move when the regulated power supply switch is set to OFF once and then set to ON Move the MD switch S601 according to this timing and set to the center position 3 FF REW modes 1 Check that the preset state is set 2 Input the square wave or si...

Page 4: ...ed from instruction manual OPEN AVLS BATT VOL FF Y DIRECTION HOLD MEGA BASS x REW Supplied with the European model only There is a tactile dot beside VOL to show the direction to turn up the volume The button has a tactile dot i To attach the hand strap ...

Page 5: ...en 3 1 CABINET FRONT SUB ASSY z The equipment can be removed using the following procedure MAIN board Cabinet center Cassette holder sub assy Mechanism deck Set Cabinet front sub assy 8 Cabinet front sub assy 6 Claws 5 Claws 7 1 2 Screw B 1 7 9 tapping 4 Claws 3 Screw B 1 7 9 tapping Cabinet center ...

Page 6: ... MECHANISM DECK 3 Mechanism deck Cabinet center assy 1 Claws 2 3 2 MAIN BOARD Cabinet center assy 1 Unsolder HEAD flexible board 3 Screw 1 7 2 5 tapping 2 Unsolder leads from motor four places 6 MAIN board 5 4 Claws ...

Page 7: ...er Use caution when installing the cassette holder assy Install the cassette holder sub assy with the spring lid up as shown below in the drawing so that it fits into the holes on the cabinet center Once installed fit the left and right pieces on Press on the left right clips from the rear of the cabinet center and remove the boss 2 1 ...

Page 8: ... m less than 2 g cm back tension less than 0 027 oz inch FF REW CQ 201B more than 5 89 mN m more than 60 g cm more than 0 84 oz inch SECTION 4 ADJUSTMENTS 4 2 ELECTRICAL ADJUSTMENTS PRECAUTION Supplied voltage 1 5V Switch and control position MEGA BASS NORMAL VOLUME control RV301 maximum AVLS OFF HOLD OFF PB EQ NORMAL TAPE SECTION Test Tape Type Signal Used for WS 48A 3kHz 0dB Tape Speed Adjustmen...

Page 9: ...YSTEM CONTROL IC703 RESET IC701 1 2 SYSTEM CONTROL IC601 CAPSTAN REEL MOTOR DRIVE IN PHOTO 1 FWD SW 2 FF SW 3 REW SW 4 REV SW 2 5V BATT_CTL2 BATT_CTL3 NC KEY_IN ENDRESS MODE XTO XTI BEEP Q303 EQ SWITCH X701 32 768KHz R CH R CH RV601 TAPE SPEED S705 REW S704 FF S702 x S703 Y DIRECTION S701 HOLD B ON R OFF IN M601 CAPSTAN REEL MOTOR S301 TAPE DET BATT 1 5V DRY BATTERY SIZE AA IEC DESIGNATION LR6 1PS...

Page 10: ...B B B B DIRECTION i C323 R610 R605 R611 S301 TAPE SW C608 R209 PH751 R207 C106 C201 C103 R751 R208 C110 R720 R305 R211 C322 R107 C610 R603 R110 1 15 16 30 C108 C107 R204 C310 R109 Q302 R311 C109 C207 C104 C308 C203 R206 C330 C312 R755 R210 R106 Q703 Q303 C304 IC301 C306 C208 C316 R111 R203 C325 R103 C210 R306 R330 C301 R104 R108 R609 C101 R105 C204 C324 Q305 BEB C C C305 R333 C307 C209 R331 C206 R...

Page 11: ...2k 22k 10k 22k 100k 4700p 470 22 4V 470k 470k 100k 4700p 1000p 22 4V 1k 1 1 1000p 1000p 1 1k 1k 100k 22 1k 1k 2 2 470p 470p 100k 100k XP1116 TX AVLS CONTROL SWITCH 0 22 0 1 1 2 2 10 6 3V 2 2 2 2 10k 4 7k 4 7k 0 047 0 MA8062 220k 220k 220k 0 01 0 01 0 1 100 0 1 0 22 22k 1 0 01 UN5215 SPEED CONTROL SWITCH 3 3K 0 1 MA8062 2SA1036KT146Q 2SA1036KT146Q 2SA1036KT146Q 470 10k 100k 330 2V 0 1k 2 2 470k 0 5...

Page 12: ...enables seeing The other layers patterns are not indicated Caution Pattern face side Parts on the pattern face side seen from the Side B pattern face are indicated Parts face side Parts on the parts face side seen from the Side A parts face are indicated z Waveforms 1 IC701 9 VOLT DIV 1V AC TIME DIV 20msec PHOTO CTRL 1 0 Vp p 125msec 2 IC701 wl XT1 VOLT DIV 0 5V AC TIME DIV 10 µsec 1 3Vp p 32 768 ...

Page 13: ...BINET FRONT SUB ASSY 4 3 252 498 01 LID BATTERY 5 X 3383 898 1 LEVER OPEN ASSY 6 3 349 825 11 SCREW 8 3 022 856 01 SPRING KNOB TENSION 9 3 704 197 91 SCREW M1 4X1 8 LOCKING 10 3 019 422 03 JOINT 11 3 252 499 01 KNOB OPEN SILVER 11 3 252 499 11 KNOB OPEN BLUE 12 3 252 500 01 KNOB HOLD SILVER 12 3 252 500 11 KNOB HOLD BLUE 13 3 252 494 21 CABINET CENTER SILVER 13 3 252 494 31 CABINET CENTER BLUE 14 ...

Page 14: ...21 982 01 SPRING MODE COMPRESSION 106 X 3375 024 4 CLUTCH ASSY F 107 3 021 951 02 GEAR CAM 108 3 348 953 21 WASHER 109 3 021 979 02 SPRING UDF COMPRESSION 110 3 021 949 01 GEAR BF 111 X 3375 022 7 CHASSIS ASSY F 112 3 021 974 04 SPRING HEAD BASE 113 3 704 197 01 SCREW M1 4 SPECIAL HEAD 114 X 3375 021 3 PINCH LEVER R F ASSY 115 3 704 197 71 SCREW M1 4 116 3 921 797 01 WASHER 117 3 338 647 31 WASHER...

Page 15: ...0 22uF 10 10V C309 1 164 156 11 CERAMIC CHIP 0 1uF 25V C310 1 165 128 11 CERAMIC CHIP 0 22uF 16V C311 1 117 720 11 CERAMIC CHIP 4 7uF 10V C312 1 135 834 91 CERAMIC CHIP 2 2uF 6 3V C316 1 115 156 11 CERAMIC CHIP 1uF 10V C322 1 115 416 11 CERAMIC CHIP 0 001uF 5 25V C323 1 135 834 91 CERAMIC CHIP 2 2uF 6 3V C324 1 104 847 11 TANTAL CHIP 22uF 20 4V C325 1 135 834 91 CERAMIC CHIP 2 2uF 6 3V C330 1 115 ...

Page 16: ... 10W R610 1 216 849 11 METAL CHIP 220K 5 1 10W R611 1 216 849 11 METAL CHIP 220K 5 1 10W R700 1 218 895 11 METAL CHIP 100K 0 5 1 10W R701 1 218 903 11 METAL CHIP 220K 0 5 1 10W R702 1 218 911 11 METAL CHIP 470K 0 5 1 10W R704 1 216 853 11 METAL CHIP 470K 5 1 10W R705 1 216 833 11 METAL CHIP 10K 5 1 10W R706 1 218 895 11 METAL CHIP 100K 0 5 1 10W R707 1 218 871 11 METAL CHIP 10K 0 5 1 10W R708 1 21...

Page 17: ... Remark MISCELLANEOUS HP601 1 500 648 11 HEAD MAGNETIC PLAYBACK M601 1 763 798 11 MOTOR DC CAPSTAN REEL ACCESSORIES 3 220 749 01 CASE CARRYING 3 253 260 41 MANUAL INSTRUCTION ENGLISH TRADITIONAL CHINESE 8 954 008 93 RECEIVER EAR MDR E808LP ...

Page 18: ...lows you to jump to the revised page Also clicking the version at the upper right on the revised page allows you to jump to the next revised page Ver Date Description of Revision 1 0 2003 02 New 1 1 2003 12 Change of exploded views Ref No 5 RPC 03002 ...

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