Sony Walkman WM-EX402 Service Manual Download | Manualshive

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Summary of Contents for Walkman WM-EX402

Page 1: ...earphones with remote control 1 EX406 only Stereo headphones or Stereo earphones 1 EX402 EX404 EX405 only Belt clip 1 Design and specifications are subject to change without notice SPECIFICATIONS 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 caref...

Page 2: ...sy 5 2 2 Main Board 6 2 3 Mechanism Deck 6 2 4 Cassette Lid Sub Assy 7 2 5 Display Board 7 3 MECHANICAL ADJUSTMENTS 8 4 ELECTRICAL ADJUSTMENTS 8 5 DIAGRAMS 5 1 Printed Wiring Boards 9 5 2 Schematic Diagram 11 6 EXPLODED VIEWS 6 1 Cassette Lid Section 16 6 2 Cabinet Section 17 6 3 Mechanism Deck Section 18 7 ELECTRICAL PARTS LIST 19 ...

Page 3: ... 3 SECTION 1 GENERAL This section extracted from instruction manual ...

Page 4: ... 4 ...

Page 5: ...re Set Cabinet rear assy Main board Mechanism deck Cassette lid sub assy Display board Note Follow the disassembly procedure in the numerical order given 2 1 CABINET REAR ASSY 1 screw B 1 7x12 1 screw B 1 7x12 2 Open the lid battery case 3 3 3 6 4 5 5 5 claws claws cabinet rear assy ...

Page 6: ... 6 2 2 MAIN BOARD 2 3 MACHANISM DECK 1 serrat IB lock 3 flexible MEGA BASS board 2 flexible board HEAD 4 4 5 MAIN board cabinet front assy mechanism deck cabinet front assy 1 1 1 2 ...

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

Page 8: ...cm back tension less than 0 03 oz inch more than 50 g cm FF REW CQ 201B more than 0 69 oz inch SECTION 4 ELECTRICAL ADJUSTMENTS SECTION 3 MECHANICAL ADJUSTMENTS PRECAUTION Supplied voltage 2 5 V Switches and control position TAPE switch NORM GROOVE MEGA BASS NORMAL switch NORMAL EX402 EX404 SOUND switch NORMAL EX405 EX406 VOL control maximum AVLS switch NORM DOLBY NR switch OFF Except EX402 Test T...

Page 9: ... OUT L SW OUT R PRE OUT L PRE OUT R PRE GND PRE MUTE POWER MUTE PWR OUT R VCC COM PWR GND PWR OUT L AVLS DET2 PWR IN L PRE2 PRE1 14 13 12 11 10 9 8 4 3 2 1 5 6 7 WEIGHT G2 G1 V I BIAS CIRCUIT Bch BLOCK same Ach VCC ON OFF VEXT INR OUTR DCR DETR GND IREF VREF INL OUTL DCL DETL SUM Gm Ach BLOCK 20 19 18 17 16 15 14 13 12 7 8 10 9 6 5 4 1 2 3 11 OUTPUT BIAS CIRCUIT CURRENT CONTROL VELOCITY CONTROL ST...

Page 10: ...G GENERATOR CLOCK GENERATOR INTERRUPTION CONTROL CIRCUIT INTERRUPTION PERMISSION MASTER F F INTERVAL TIMER 12BIT TIMER COUNTER 2 CHANNEL 8BIT SERIAL INTERFACE WATCH DOG TIMER ZERO CROSS FLAG C Z ALU S 8BIT A D CONVERTER PULSE OUTPUT CIRCUIT R7 5 6 11 R5 R6 16 15 17 18 19 R8 20 21 22 23 R9 KE 24 25 26 27 28 12 13 14 7 R4 8 9 10 VDD HOLD NC BEEP NC NC PHOTO CTL PHOTO IN FWD REV REV SW REW SW FF SW F...

Page 11: ...LID SECTION N N Ref No Part No Description Remark 12 12 2 3 13 5 6 7 14 1 1 5 6 7 11 11 10 9 8 4 3 2 1 1 EX404 EX404 WM EX405 EX406 WM EX402 EX404 1 3 008 298 11 SCREW EX402 EX404 2 1 667 932 11 DISPLAY BOARD 3 1 667 927 11 FLEXIBLE MEGA BASS BOARD 4 3 019 493 01 BUTTON CONTROL EX402 EX404 5 3 318 382 61 SCREW 1 7X2 5 TAPPING 6 3 019 506 01 LOCKER OPEN 7 3 025 276 01 SPRING LID UP 8 X 3374 790 1 L...

Page 12: ...1 4 SPECIAL HEAD 59 3 019 421 01 LEVER OPEN 60 3 022 856 01 SPRING KNOB TENSION 61 3 019 422 01 JOINT 62 3 019 514 01 KNOB OPEN 63 3 025 230 01 SPACER KNOB OPEN 64 3 020 507 01 CABINET FRONT EX402 64 3 020 507 11 CABINET FRONT EX404 64 3 020 507 22 CABINET FRONT EX405 EX406 65 3 364 675 01 SPRING CASSETTE 66 3 020 511 01 TERMINAL BATTERY 67 3 020 512 01 TERMINAL BATTERY 68 3 010 838 22 LOCK SERRAT...

Page 13: ...6 X 3375 024 1 CLUTCH ASSY F 107 3 021 951 01 GEAR CAM 108 3 348 953 21 WASHER 109 3 021 979 01 SPRING UDF 110 3 021 949 01 GEAR BF 111 X 3375 022 1 CHASSIS ASSY F 112 3 021 974 01 SPRING HEAD BASE 113 3 703 816 31 SCREW M1 4 SPECIAL HEAD 114 X 3375 021 1 LEVER ASSY R F PINCH 115 3 703 816 73 SCREW M1 4 SPECIAL HEAD 116 3 921 797 01 WASHER 117 3 921 003 01 BEARING 118 3 022 100 01 SPRING B T COMPR...

Page 14: ...D COMPLETE EX405 FR A 3021 020 A MAIN BOARD COMPLETE EX405 AEP EX406 A 3021 099 A MAIN BOARD COMPLETE EX402 FR 3 020 511 01 TERMINAL BATTERY 3 020 512 01 TERMINAL BATTERY CAPACITOR C101 1 162 962 11 CERAMIC CHIP 470PF 10 50V C102 1 162 962 11 CERAMIC CHIP 470PF 10 50V C103 1 162 968 11 CERAMIC CHIP 0 0047uF 10 50V C104 1 126 153 11 ELECT 22uF 20 6 3V C105 1 115 156 11 CERAMIC CHIP 1uF 10V C106 1 1...

Page 15: ...HIP 0 5 1 16W JC7 1 216 864 11 METAL CHIP 0 5 1 16W JC8 1 216 864 11 METAL CHIP 0 5 1 16W JC9 1 216 295 00 SHORT 0 JC10 1 216 864 11 METAL CHIP 0 5 1 16W JC11 1 216 295 00 SHORT 0 COIL L301 1 410 997 31 INDUCTOR CHIP 2 2uH PHOTO REFLECTOR PH701 8 719 988 23 PHOTO REFLECTOR PR 11 C TL TRANSISTOR Q101 8 729 421 26 TRANSISTOR UN5216QRS Q201 8 729 421 26 TRANSISTOR UN5216QRS Q303 8 729 807 86 TRANSIST...

Page 16: ...41 11 METAL CHIP 47K 5 1 16W R708 1 216 845 11 METAL CHIP 100K 5 1 16W R711 1 218 836 11 RES CHIP 360 0 50 1 16W R715 1 216 841 11 METAL CHIP 47K 5 1 16W R716 1 216 829 11 METAL CHIP 4 7K 5 1 16W R717 1 218 836 11 RES CHIP 360 0 50 1 16W R718 1 216 845 11 METAL CHIP 100K 5 1 16W R719 1 216 833 11 METAL CHIP 10K 5 1 16W R720 1 216 845 11 METAL CHIP 100K 5 1 16W R721 1 216 845 11 METAL CHIP 100K 5 1...

Page 17: ... 22 Sony Corporation Personal A V Products Company 9 923 324 11 WM EX402 EX404 EX405 EX406 98B0468 1 Printed in Japan C1998 2 Published by Quality Engineering Dept Shibaura ...

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