Sony Walkman ICF-CD832 Service Manual Download Page 21

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ICF-CD832

5-8. PRINTED WIRING BOARD — MAIN SECTION — • Refer to page 14 for Circuit Boards Location and page 18 for Common Note on Printed Wiring Boards.

ANT1

C108

R120

R109

R209 C208

R220

R111

CV1

CT3

CV1-3

CT2

CV1-2

CV1-4

CT4

CV1-1

CT1

R11

C15

C201

R461

C465 C466

R472

D402

C117
C116
C217
C216

R6
R5

C13

C10

BPF1

C301

C207

TP103

TP203

C107

C460

W403

W402

S401

PUSH

OPEN/CLOSE

R469

C440

Q401

CN501

C421

C457

R468

R467

C456

R464

R463

D404

D403

Q403

R465

R471

R459

R458

IC401

C447

C452

C459

C444

C409

X402

X401

R457

C441

L402

IC402

L401

W401

R444

R441

R443

R552

C12

C101

C25
C20

CF1

CF2

C21

R10

C109

R211
C209

R119

R110

R219

R210

C31

C34

C36

R13

R215

C304

R212

R115

C212

C213

C113

R909

Q903

Q202

Q101

Q201

IC301

IC1

R308

C909

C308

C307

C115

C908

R911

C913

R906

Q901

Q904

R903

R904

R905

Q902

R910
C918

R116

R107

C221

R302

C203

C302

C23

C29

C912

R207

R217

R306

C305

R106

C121

C312

R213

R113

R303

C106

D302

Q203

Q103

Q301

Q102

R206
C206

C105

C104

R103
R102

R203
R202
C204

TP7

TP8

TP3

TP201

TP101

TP102

TP204

TP206

TP205

SP101

Lch SPEAKER

SP201

Rch SPEAKER

TP101

TP105

TP901

CN901

CN301

TP302

TP202

C205

C123

C223

R214

C210

R304

C303

C103

R301

D301

R201

R112

R117

R216

C112

R912

C911

C915

R908

R907

C916

D908

D907

D912

D913

D910

C914

D911

D909

C910

C917

C919

C215

R101

R114

C110

C19

C11

C35

C17

C14

C18

R551

C467

C464

D405

D401

C454

C455

C439

C451

R460

C450

C446

C445

C442

C443

C417

C413

R413

R416

R417

C461

R411

C410

C411

R409

R410

R401

R402

R403

R404

R405

R406

R407

R408

C401

C402

C403

C404

C405

C406

C407

C408

C416

C415

C414

R418

R419

R421

R425

R423

C449

C448

C463

R466

C462

R470

C438

C437

C436

C435

C434

C433

C432

B C E

R452

R451

R450

R449

R448

R447

R446

R445

C429

C430

C428

C427

C426

C425

C424

C423

JC2

R438

R439

R437

R436

R435

R434

R433

R432

R430

R429

R428

R427

R426

C420

C422

C551

C419

C418

C16

C37

GRY

RV301

VOLUME

AM FERRITE

ROD ANTENNA

CV1

TUNING

BAND

Q551

Q402

B C

20 21

41
40

D914

1-687-041-

MAIN BOARD

(Page 25)

(Page 23)

(Page 18)

(Page 24)

D301

F-8

D302

E-9

D401

G-6

D402

G-7

D403

I-4

D404

J-5

D405

G-7

D907

C-7

D908

C-6

D909

B-6

D910

C-5

D911

B-5

D912

C-5

D913

C-5

D914

D-5

IC1

E-5

IC301

C-8

IC401

I-7

IC402

H-5

E-6

Q101

D-7

Q102

E-7

Q103

E-9

Q201

E-7

Q202

D-7

Q203

E-9

Q301

F-8

Q401

G-7

Q402

J-5

Q403

J-5

Q551

F-7

Q901

B-6

Q902

C-6

Q903

C-7

Q904

B-5

• Semiconductor

Location

Ref. No.

Location

Summary of Contents for Walkman ICF-CD832

Page 1: ...ystem Compact disc digital audio system Laser diode properties Material GaAlAs Wavelength 780 nm Emission duration Continuous Laser output Less than 44 6 µW This output is the value measured at a distance of about 200 mm from the objective lens surface on the optical pick up block with 7 mm aperture Frequency response 20 20 000 Hz dB Wow and flutter Below measurable limit Radio section Frequency r...

Page 2: ... or performance of proce dures other than those specified herein may result in haz ardous radiation exposure 1 5 kΩ 0 15 µF AC voltmeter 0 75 V To Exposed Metal Parts on Set Earth Ground SAFETY CHECK OUT After correcting the original service problem perform the follow ing safety check before releasing the set to the customer Check the antenna terminals metal trim metallized knobs screws and all ot...

Page 3: ... Block Diagram Tuner Section 16 5 4 Block Diagram Main Section 17 5 5 Printed Wiring Board CD Section 18 5 6 Schematic Diagram CD Section 19 5 7 Schematic Diagram Main Section 20 5 8 Printed Wiring Board Main Section 21 5 9 Schematic Diagram Control Display Section 22 5 10 Printed Wiring Boards Key Section 23 5 11 Printed Wiring Board Drive Section 24 5 12 Printed Wiring Board Transformer Section ...

Page 4: ...OCUS SEARCH OPERATION CHECK 1 Turn ON the POWER button and press CD button to CD position 2 Open the CD lid 3 Turn on S401 with screwdriver etc as following figure 4 Press the N X CD button 5 Confirm the laser diode emission while observing the objecting lens When there is no emission Auto Power Control circuit or Optical Pick up is broken Objective lens moves up and down three times for focus sea...

Page 5: ...d as shown in the figure pointer 2 Fit the protrusion on the pointer in the hole A 3 Align the notch on the boss of the knob tune with the direction of CV1 knob tune chassis assy 1 Turn this in the arrow direction until stopped A power cord 1 2 POINTER ALIGNMENT ...

Page 6: ...6 ICF CD832 SECTION 2 GENERAL This section is extracted from instruction manual ...

Page 7: ...Y Page 8 SET 3 4 MAIN BOARD DRIVE BOARD Page 9 3 5 KEY A BOARD KEY B BOARD Page 9 3 7 OPTICAL PICK UP Page 10 3 2 LID CD Page 8 3 6 CD MECHANISM DECK Page 10 3 1 CABINET UPPER ASSY Note Follow the disassembly procedure in the numerical order given 1 two screws BV tapping B3 2 four screws BV tapping B3 3 cabinet upper sub assy 4 connector ...

Page 8: ...SSIS ASSY 3 2 LID CD 1 screw BV tapping B3 3 screw BV tapping B3 4 two screws BV tapping B3 2 damper 6 holder CD 5 claws 7 CD lid sub assy cabinet upper sub assy 3 three screws BV tapping B3 4 chassis assy 2 CN901 1 CN301 ...

Page 9: ... BOARD KEY B BOARD 7 five screws P 3x10 9 MAIN board 2 Removal the solders 3 Removal the solders 5 Removal the solders 4 shield plate main chassis assy 1 CN601 8 CN501 6 DRIVE board 1 two screws B 2x8 3 three screws B 2x8 2 KEY A board 4 KEY B board ...

Page 10: ... 1 two screws PWH 2 6x10 5 screw BVTT 2x6 6 Removal the solders 8 CD board 0 CD mechanism deck 7 Removal the solders 4 CD cover 2 two screws PWH 2 6x10 9 CNP701 3 2 screw PWB tapping M2 3 screw PWB tapping M2 1 gear A claw 5 sled shaft 6 optical pick up 4 ...

Page 11: ...justment Location See page 12 TUNER SECTION 0 dB 1 µV SECTION 4 ELECTRICAL ADJUSTMENTS FM Section Setting BAND switch FM VOLUME control MIN FM lead wire antenna terminal FM RF signal generator 0 01 F set 75 kHz frequency deviation by 1 kHz signal output level as low as possible Put the lead wire antenna close to the set AM RF signal generator AM Section Setting BAND switch AM VOLUME control MIN 30...

Page 12: ...ER FM LEAD WIRE ANTENNA IC1 S1 RV301 CV1 TUNING CT3 T2 FM IF ADJUSTMENT CT4 L4 AM FREQUENCY COVERAGE ADJUSTMENT CT1 L1 AM TRACKING ADJUSTMENT CT2 L2 FM TRACKING ADJUSTMENT CT3 L5 FM FREQUENCY COVERAGE ADJUSTMENT T1 AM IF ADJUSTMENT MAIN BOARD component side 1 4 CT2 CT1 CT4 ...

Page 13: ...check confirm that focus bias FOCUS BIAS CHECK 1 Connect the oscilloscope between IC701 pin 4 and pin qa or TP RF and TP VREF 2 Insert the disc YEDS 18 Part No 3 702 101 01 3 Press the N X CD button 4 Confirm that the oscilloscope waveform is as shown in the figure below eye pattern A good eye pattern means that the diamond shape in the center of the waveform can be clearly distinguished RF signal...

Page 14: ...14 ICF CD832 SECTION 5 DIAGRAMS 5 1 CIRCUIT BOARDS LOCATION MAIN board DRIVE board KEY A board TRANSFORMER board CD board KEY B board ...

Page 15: ...IVER IC702 S701 LIMIT EFMIN HFL AGC PH RFENV FE TE VREF CONT1 FSEQ CONT4 DRF RES DI CE CL WRQ DO XOUT XIN LCHO RCHO 12 11 9 5 7 8 3 10 4 6 CNP702 3 67 TDD TD FD SP SL 31 72 25 66 63 61 62 49 48 65 64 42 45 RF AMP SYSTEM SERVO PROCESSOR DIGITAL SIGNAL PROCESSOR IC701 X701 16 93MHz CLV CAV CONTROL PLL VCEC SWITCH ERROR CORRECTION AUDIO CD A D CONVERTER SERVO PROCESSOR FRAME SYNC DETECT PROTECT INSER...

Page 16: ...3 21 12 8 7 4 14 FM DET AM OSC AM MIX FM OSC FM MIX AM DET LPF2 VREG CF2 AM OSC L2 CT2 CV1 2 L5 CT3 CV1 3 VREG MIX OUT MPX IN T1 AM IFT T2 FM DET IC1 FM AM FRONTEND IF AMP DET LOUT ROUT DET OUT VREG VREG VREG AM IF IN FM IF IN FM RF IN AMRF IN FM RF OUT FM OSC AF ST MO FM AM TU R TU L A 13 DECODE 18 17 16 19 ANT1 FM 1 S1 BAND SW BPF1 CT4 CV1 4 L4 MW FM VREG CV1 1 CT1 L1 AM ANT Signal path FM AM ...

Page 17: ...7 5 1 3 4 5 7 6 2 1 CD B 6V R CH R CH TU R TU L DATA A MUT BUZZER POWER ON BRIGHTNESS SEG13 SEG14 50 60Hz RESET AC IN RADIO ON CD ON VREF CN501 DATA IN CD CLK LAT XRST DRF WRQ FSEQ SEG14 SEG15 SEG16 COM1 COM2 CD OPEN KEY1 X2 74 X1 3 9V 71 X401 32KHz XT2 70 XT1 SW2 SW0 SW1 CD RADIO NAP LED KEY0 11 9 12 13 1 I 13 S653 CLOCK TRACK S602 RADIO ON S604 TIME SET S606 SNOOZE SLEEP OFF S607 ALARM SET A S61...

Page 18: ... WIRING BOARDS AND SCHEMATIC DIAGRAMS In addition to this the necessary note is printed in each block Common Note on Schematic Diagrams 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 4 W or less unless otherwise specified f internal component C panel designation A B Line H adjustment for rep...

Page 19: ...1 R708 C708 C742 R741 C740 C709 R726 C729 R731 R720 R719 R722 R727 R728 C744 R730 R729 C724 C720 C722 C723 C721 R717 R716 R718 R721 FB701 C717 C735 R715 R714 R723 C728 R725 C702 S701 C730 CNP702 C707 C706 TP TP C711 L706 C750 C747 C746 C701 C739 IC702 JC702 JC701 C738 C705 C734 C736 JC703 C727 C726 C725 R732 C755 C754 IC701 X701 C716 Q701 JC704 Page 20 1 IC701 4 RF 500mV div 0 5µsec div 2 IC701 qd...

Page 20: ... R303 R304 C303 D302 R213 R113 C210 C110 R214 R114 Q203 Q103 TP302 IC301 R215 R115 R216 R116 C213 C113 C308 R217 R117 R306 C305 C304 C212 TP204 C112 TP104 C215 C115 TP205 TP206 TP106 TP105 CN301 CN302 SP201 SP101 Q903 D912 C917 C915 C913 C911 C918 C908 C909 C910 C912 C914 C916 R908 R907 R906 R905 D907 D908 R904 D910 D911 R910 R909 D909 R903 CN901 TP904 TP903 TP905 C551 C919 R552 R911 R912 R551 D91...

Page 21: ... TP105 TP901 CN901 CN301 TP302 TP202 C205 C123 C223 R214 C210 R304 C303 C103 R301 D301 R201 R112 R117 R216 C112 R912 C911 C915 R908 R907 C916 D908 D907 D912 D913 D910 C914 D911 D909 C910 C917 C919 C215 R101 R114 C110 C8 C19 C11 C35 C17 L5 C14 C18 R551 C467 C464 D405 D401 C454 C455 C439 C451 R460 C450 C446 C445 C442 C443 C417 C413 R413 R416 R417 C461 R411 C410 C411 R409 R410 R401 R402 R403 R404 R40...

Page 22: ... R510 R511 R512 R513 R514 R515 Q517 Q516 R519 R517 Q515 Q514 R642 R641 R646 R644 R643 R645 C602 C601 S601 S602 S603 S604 S605 S606 S607 S608 S609 S610 R601 R602 R603 R604 R605 R606 R608 R609 R610 R614 R615 R617 R619 R621 R622 R631 R629 R630 R627 R628 R625 R626 R623 R624 R640 R638 R639 R636 R637 R634 R635 R632 R633 R662 R663 R660 R661 S652 S653 W501 W401 R618 S611 S612 CN601 W601 S651 T901 Q602 Q60...

Page 23: ...R632 R635 R634 R637 R636 R639 R638 R640 R631 R622 R613 R642 R615 R614 C602 R646 W601 CN601 R645 Q602 E C B E C B S601 OFF x S603 CD u S608 NAP D602 NAP TIME SET S605 SLEEP S610 ALARM SET S611 ALARM MODE S606 SNOOZE SLEEP OFF ALARM RESET S602 RADIO ON S607 ALARM SET S609 S604 D601 BUZZER RADIO CD OFF S612 ALARM MODE BUZZER RADIO CD OFF 1 1 3 9 B SLEEP B A MAIN BOARD W403 A R657 R658 R655 R656 R653 ...

Page 24: ...514 R513 B E C Q513 R512 B E C Q512 W401 W501 R511 B E C Q511 R510 B E C Q510 R509 B E C Q509 R508 B E C Q508 R507 B E C Q507 R506 B E C Q506 R505 WHT B E C Q505 R504 B E C Q504 R503 B E C Q503 R502 B E C Q502 R501 B 1 687 042 11 E C Q501 18 1 1 1 18 21 A MAIN BOARD W401 Q501 B 8 Q502 B 7 Q503 B 7 Q504 B 7 Q505 B 6 Q506 B 6 Q507 B 6 Q508 B 5 Q509 B 5 Q510 B 5 Q511 B 4 Q512 B 4 Q513 B 4 Q514 B 3 Q5...

Page 25: ...ds Location and page 18 for Common Note on Printed Wiring Boards 1 A B C D E F G H 2 3 4 5 6 7 TRANSFORMER BOARD C901 JW901 R901 C907 C906 C905 D905 D906 L902 L901 AC IN WHT BLK C903 C904 T901 POWER TRANSFORMER R902 C902 D902 D901 JW902 D904 D903 CH901 1 5 1 687 043 11 C MAIN BOARD CN901 Page 21 ...

Page 26: ...ETECT PROTECT INSERT EFM DECODE A D CLOCK GENERATOR COMMAND INTERFACE SERVO PROCESSOR LEVEL SET S H SW DRF DRF ATTENUATION DEEMPHASIS INTERPOLATION MUTE RUPTURE DEFECT SLICE LEVEL CONTROL CLV CAV CONTROL SERIAL OUT AUDIO OUT RAM JITTER DETECT PLL VCEC FE TE TEC RF RFMON VREF SPDO SLDO GPDAC FSEQ MONI1 5 FDO LPF LPF AGC 5 13 IC PIN DESCRIPTION IC401 uPD789477GC A28 8BT SYSTEM CONTROL Pin No Pin Nam...

Page 27: ...VCC 4 3 2 1 NC ROUT STBY GND 6 5 NC RIN 9 10 11 12 NC LOUT VCC PP 7 8 DC LIN FILTER AM RF IN FM RF OUT FM RF IN RF GND AM LOW CUT MIX OUT AGC VCC AM IF IN FM IF IN GND TUN LED ST LED QUAD FM OSC AM OSC AFC DET OUT MPX IN LPF2 LPF1 L OUT R OUT 7 5 4 3 1 2 6 8 9 12 10 11 14 15 16 17 18 19 21 20 24 23 RF VCC 22 13 DECODER VCO DIVIDER ST MONO FM AM AF AMP FM MUTE AF BUFFER FM DET AM DET AM RF AMP FM R...

Page 28: ...12 3 254 944 01 INDICATOR 13 3 254 145 01 SCREW B3 BV TAPPING 14 3 253 143 01 SCREW B2 6 P TAPPING 15 3 254 143 01 SCREW B3 BV TAPPING S401 1 692 960 11 SWITCH PUSH 1 KEY Z PUSH OPEN CLOSE NOTE The mechanical parts with no reference number in the exploded views are not supplied Items marked are not stocked since they are seldom required for routine service Some delay should be anticipated when ord...

Page 29: ...ETE 58 3 248 350 31 NET L SP WHITE WHITE 58 3 248 350 51 NET L SP BLACK BLACK 59 3 933 547 01 SHEET BAND 60 3 254 143 01 SCREW B3 BV TAPPING SP101 1 825 274 11 SPEAKER 6 6cm L CH SP201 1 825 274 11 SPEAKER 6 6cm R CH 0T901 1 439 564 11 TRANSFORMER POWER 51 52 53 54 55 55 58 57 56 59 SP101 SP201 T901 not supplied not supplied 60 60 The components identified by mark 0 or dotted line with mark 0 are ...

Page 30: ...907 51 ANTENNA FM WIRE 113 3 243 251 01 CUSHION LIGHT GUIDE PLATE 114 3 248 346 02 CHASSIS 115 A 3347 607 A KEY A BOARD COMPLETE 116 3 371 765 21 SCREW 2X8 BTP 117 A 3347 597 A KEY B BOARD COMPLETE 118 3 256 226 01 SHEET CD INSULATING 119 A 3347 592 A DRIVE BOARD COMPLETE 120 1 757 689 11 CABLE FLEXIBLE FLAT 16 CORE 121 3 831 441 11 CUSHION B 122 3 831 441 99 SPACER L1 1 456 281 11 COIL FERRITE RO...

Page 31: ... SCREW 2X3 156 151 153 153 155 152 154 157 M701 M702 156 2 626 908 01 SHAFT SLED 157 X 2162 707 2 CHASSIS ASSY RDP RP MOTOR SPINDLE including M701 M702 X 2162 712 2 GEAR ASSY R RP MOTOR SLED Ver 1 1 The components identified by mark 0 or dotted line with mark 0 are critical for safety Replace only with part number specified Les composants identifiés par une marque 0 sont critiques pour la sécurité...

Page 32: ...HIP 0 1uF 25V C743 1 164 156 11 CERAMIC CHIP 0 1uF 25V C744 1 164 156 11 CERAMIC CHIP 0 1uF 25V C745 1 164 156 11 CERAMIC CHIP 0 1uF 25V C746 1 104 658 11 ELECT 100uF 20 10V C747 1 104 658 11 ELECT 100uF 20 10V C750 1 104 658 11 ELECT 100uF 20 10V C751 1 164 156 11 CERAMIC CHIP 0 1uF 25V C754 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C755 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V CONNECTOR CNP701 1 77...

Page 33: ...0W R502 1 216 801 11 METAL CHIP 22 5 1 10W R503 1 216 801 11 METAL CHIP 22 5 1 10W R504 1 216 801 11 METAL CHIP 22 5 1 10W R505 1 216 801 11 METAL CHIP 22 5 1 10W R506 1 216 801 11 METAL CHIP 22 5 1 10W R507 1 216 801 11 METAL CHIP 22 5 1 10W R508 1 216 801 11 METAL CHIP 22 5 1 10W R509 1 216 801 11 METAL CHIP 22 5 1 10W R510 1 216 801 11 METAL CHIP 22 5 1 10W R511 1 216 801 11 METAL CHIP 22 5 1 1...

Page 34: ...52 1 786 050 21 SWITCH KEYBOARD BRIGHTNESS S653 1 786 050 21 SWITCH KEYBOARD CLOCK TRACK A 3347 588 A MAIN BOARD COMPLETE BLACK A 4547 112 A MAIN BOARD COMPLETE WHITE 1 501 907 51 ANTENNA FM WIRE 3 243 251 01 CUSHION LIGHT GUIDE PLATE 3 248 348 01 HOLDER ANTENNA 3 248 354 01 PLATE MAIN SHIELD 3 249 185 01 PLATE TUNER SHIELD 3 382 175 41 KNOB V 3 831 441 11 CUSHION B 7 685 147 14 SCREW P 3X10 TYPE2...

Page 35: ...27 11 CERAMIC CHIP 100PF 5 50V C428 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V C429 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C430 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C432 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C433 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C434 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C435 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C436 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C437 1 1...

Page 36: ...1 10W R102 1 216 829 11 METAL CHIP 4 7K 5 1 10W R103 1 216 825 11 METAL CHIP 2 2K 5 1 10W R106 1 216 845 11 METAL CHIP 100K 5 1 10W R107 1 216 821 11 METAL CHIP 1K 5 1 10W R109 1 216 821 11 METAL CHIP 1K 5 1 10W R110 1 216 821 11 METAL CHIP 1K 5 1 10W R111 1 216 821 11 METAL CHIP 1K 5 1 10W R112 1 216 829 11 METAL CHIP 4 7K 5 1 10W R113 1 216 821 11 METAL CHIP 1K 5 1 10W R114 1 216 845 11 METAL CH...

Page 37: ...ETAL CHIP 10K 5 1 10W R468 1 216 833 11 METAL CHIP 10K 5 1 10W R469 1 216 837 11 METAL CHIP 22K 5 1 10W R470 1 216 821 11 METAL CHIP 1K 5 1 10W R471 1 216 821 11 METAL CHIP 1K 5 1 10W R472 1 216 825 11 METAL CHIP 2 2K 5 1 10W R551 1 216 813 11 METAL CHIP 220 5 1 10W R552 1 216 841 11 METAL CHIP 47K 5 1 10W R903 1 216 833 11 METAL CHIP 10K 5 1 10W R904 1 216 833 11 METAL CHIP 10K 5 1 10W R905 1 249...

Page 38: ...SLED S401 1 692 960 11 SWITCH PUSH 1 KEY Z PUSH OPEN CLOSE SP101 1 825 274 11 SPEAKER 6 6cm L CH SP201 1 825 274 11 SPEAKER 6 6cm R CH 0T901 1 439 564 11 TRANSFORMER POWER ACCESSORIES 3 249 184 13 MANUAL INSTRUCTION ENGLISH FRENCH GERMAN SPANISH ITALIAN PORTUGUESE Canadian 3 249 184 24 MANUAL INSTRUCTION ENGLISH US The components identified by mark 0 or dotted line with mark 0 are critical for saf...

Page 39: ...39 ICF CD832 MEMO ...

Page 40: ... the version allows you to jump to the revised page Also clicking the version at the upper on the revised page allows you to jump to the next revised page Ver Date Description of Revision 1 0 2004 02 New 1 1 2004 03 Canadian model addition ...

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Sony Walkman ICF-CD832, Service Manual

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