Sony Walkman WM-FX855 Service Manual Download Page 7 | Manualshive

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LID ASS’Y, CASSETTE

MECHANISM DECK

5

lid ass’y, cassette

4

serrat
(IB lock)

4

serrat (IB lock)

2

tuner flexible board

3

screw
(IB lock)

1

Open the cassette lid.

ornament ass’y, reel

2

Remove the mechanism deck
to direction of the arrow

A

.

A

1

1

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5
6
7
8
9
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Summary of Contents for Walkman WM-FX855

Page 1: ...Ni Cd One R6 size AA battery Battery life Approx hours Rechargeable NC 6WM Fully charged Playback 9 Radio TV reception 9 Sony alkaline LR6 WM Playback 36 Radio TV reception 29 Sony R6P SR Playback 10 Radio TV reception 9 Rechargeable NC 6WM Sony alkaline LR6 WM Used together Playback 45 Radio TV reception 36 Dimensions Approx 108 7 80 0 23 5 mm w h d Weight Approx 150 g Main unit Approx 210 g incl...

Page 2: ...chip component Notice that the minus side of a tantalum capacitor may be dam aged by heat Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C dur ing 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 COM...

Page 3: ...ding to this timing and set to the center position 3 FF REW Modes 1 Check that the preset state is set and press the FF and REW switches 4 PLAY mode 1 Check that the preset state is set 2 Pressing the ª switch will move the lever FR SW once towards the F side and then to the R side Moving the FWD RVS switch S708 according to this timing will set the PLAY mode R side Pressing the ª switch another t...

Page 4: ...otor pulley gear NR REW right side FWD left side Rotation system during FF gear TB gear FR FF left side gear NR clutch ass y M motor pulley pulley reverse flywheel R ass y flywheel N ass y gear Y gear REEL T side Rotation system during REW gear NR gear FR REW right side gear REEL S side gear S motor pulley clutch ass y M pulley reverse flywheel R ass y flywheel N ass y gear Y ...

Page 5: ...mation display 3 Contact for dry battery case 4 Rechargeable battery case 5 Tape operation buttons 6 BATT indicator 7 HOLD switch 8 Main unit VOLUME knob Remote control VOL knob 9 Åa Tape direction BL SKIP Blank skip switch º a DOLBY NR switch 2 REMOTE jack Micro plug SOUND AVLS button 1 ENTER button 2 ASP Auto Station Preset button 3 PRESET button 4 TUNE button 5 p RADIO OFF button 6 FM ST MONO s...

Page 6: ...arrow A 2 two screws IB lock 2 screw IB lock 6 two screws M1 7 3 0 3 Remove four solders 5 Remove four solders 2 tuner flexible board 9 sw cover 8 AUDIO board 4 Remove two solders 7 screw IB lock 1 head flexible board CASE ASS Y page 6 AUDIO BOARD page 6 MECHANISM DECK page 7 LID ASS Y CASSETTE page 7 Note Follow the disassembly procedure in the numerical order given ...

Page 7: ...ETTE MECHANISM DECK 5 lid ass y cassette 4 serrat IB lock 4 serrat IB lock 2 tuner flexible board 3 screw IB lock 1 Open the cassette lid ornament ass y reel 2 Remove the mechanism deck to direction of the arrow A A 1 1 ...

Page 8: ... 30 g cm CQ 102C 0 25 0 41 oz inch FWD 0 7 2 0 g cm back tension 0 006 0 027 oz inch REV CQ 102RC 18 30 g cm 0 25 0 41 oz inch REV 0 7 2 0 g cm back tension 0 006 0 027 oz inch FF CQ 201B more than 35g cm REW more than 0 49 oz inch Type Signal Used for WS 48A 3 kHz 0 dB Tape Speed Adjustment Tape Speed Adjustment Procedure 1 Playback WS 48A tape center part in the FWD state and ad just RV601 so th...

Page 9: ...ltmeter TUNER Board TP21 VT see page10 Caution Before the FM measurement remove a chip ceramic capacitor C22 in the ANT line Reconnect it after measure ment For the tracking adjustment repeat is 2 or 3 times then end with adjustment of trimmer capacitor TUNER Board C22 AM IF ADJUSTMENT Adjust for a maximum reading on level meter T2 450 kHz AM FREQUENCY COVERAGE ADJUSTMEN Adjusting device Frequency...

Page 10: ...cation TUNER Board TP25 19 kHz TP23 ANT GND TP1 ANT T2 AM IF Adjustment T1 AM Frequency coverage Adjustment L5 FM IF Adjustment TP21 VT RV1 VCO Adjustment L8 CT1 AM Tracking Adjustment VCO Adjustment Adjusting device Frequency display Frequency counter reading RV1 78 00 MHz 19 00 kHz 0 05 kHz ...

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Page 14: ...veforms AUDIO Section TUNER Section 1 IC501 ª XIN 1V DIV 10 µs DIV 2 IC701 5 X0 2V DIV 200 ns DIV 1 T3 4 1V DIV 100 ns DIV 2 T3 1 10V DIV 100 ns DIV 2 4 Vp p 2 ns 20 4 Vp p 18 ns 1 8 Vp p 75 kHz 4 Vp p 4 MHz ...

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Page 16: ......

Page 17: ...NR SW BUF IN L EK IN L PRE OUT L PRE OUT R MTL DRV L MTL DRV R HIGH SW BST SW PW IN C BST OUT BST NF EQ R PW NF R VCC1 PRE GND 3 IN R REV IN R FWD DC SRV R PRE VREF DC SRV L IN R FWD IN L REV DET 2 AGC IN RF OUT BASE VCC PW GND PW OUT R PW OUT C PW OUT L PW SW MUTE SW BEEP TC AVLS DET AVLS IN AVLS OUT EQ L PW NF L PW IN L PRE GND PW IN R PW VREF RF IN NR OUT R SC IN R HPF R RECT R PRE GND 2 RECT L...

Page 18: ... 29 TUNER Section IC1 TA8182FN IC2 TA2022AFN EL ...

Page 19: ... OFF control signal L DOLBY ON 19 IF DET I Input of IF detection signal 20 GND Ground terminal 21 GND Ground terminal 22 EO O Output of PLL error signal 23 VCOL I Input of local oscillating frequency direct frequency dividing system 24 VCOH I Input of local oscillating frequency pulse swallow system 25 VREG0 Output of PLL requlator 26 VDD Power supply terminal 27 VDD Power supply terminal 28 XOUT ...

Page 20: ...nable control signal 58 RQT I Input of request signal for MB89133LPFV communication 59 NC Not used for this set Open 60 BEEP O Output of beep sound 61 PRE AMP CTL O Preamplifier output switching L TC H RADIO 62 DDC TC ON O Output of DC DC converter control signal 63 TC CLK O Communication clock input output terminal 64 TC DATA I Communication data input output terminal ...

Page 21: ... of AVLS control H OFF L ON 23 PHOTO CTL O Output of rotation detect control signal 24 MOTOR CTL O Output of motor control signal 25 VSS Ground terminal 26 MOTOR DIR O Output of motor rotating direction control signal 27 MOTOR BRK O Output of motor control circuit control signal 28 NC Not used for this set Open 29 PHOTO IN I Input of rotation detect signal 30 NC Not used for this set Open 31 MODE ...

Page 22: ...erter ON OFF control signal L ON 53 MUTE CTL O Output of audio MUTE control signal L MUTE ON 54 TC DATA O Output of communication data to µPD17073 55 TC CLK O Output of communication clock to µ PD17073 56 NC Not used for this set Open 57 AVSS Ground terminal A D converter 58 NC Not used for this set Open 59 AVR I Input of A D converter reference voltage 60 F R SW I Input of mechanism deck mode swi...

Page 23: ... 7X2 5 5 3 015 917 01 LOCKER OPEN 6 3 704 197 11 LOCK SERRAT IB GOLD 6 3 704 197 13 LOCK SERRAT IB BLACK BROWN 7 X 3374 056 1 LID ASSY CF B CASSETTE BLACK 7 X 3374 057 1 LID ASSY CF N CASSETTE GOLD 7 X 3374 058 1 LID ASSY CF T CASSETTE BROWN 8 3 015 912 01 ORNAMENT REEL 9 3 704 197 01 SCREW IB LOCK 10 3 015 913 01 KNOB OPEN 11 3 015 924 01 PLATE ORNAMENTAL 12 3 939 590 18 SCREW IB LOCK GOLD 12 3 9...

Page 24: ... No Part No Description Remark Ref No Part No Description Remark 60 3 928 465 01 DETENT CASSETTE 61 3 366 890 01 SCREW M1 4 62 3 007 282 01 TERMINAL BOARD MINUS BATTERY 63 3 016 087 01 COVER SW 64 A 3061 553 A AUDIO B BOARD COMPLETE 65 1 694 030 11 CONDUCTIVE BOARD CONNECTION 66 1 668 361 11 AUDIO SWITCH UNIT BOARD 67 3 014 925 01 HOLDER LCD 68 3 019 232 01 SPRING TENSION 69 3 018 159 01 SPRING TO...

Page 25: ...1 GEAR FR 118 X 3372 853 1 LEVER FRG ASSY 119 3 007 432 01 SHEET R REFLECTION 120 3 010 272 01 BELT RETAINER 121 3 007 427 01 SCREW IB LOCK 122 X 3374 094 1 CHASSIS S ASSY Y 123 3 007 457 01 SPRING TEN TENSION 124 X 3372 849 1 PINCH LEVER R ASSY 125 3 010 954 01 SPRING BT COMPRESSION 126 3 010 274 02 TABLE REEL 127 3 366 017 01 BUSHING CAPSTAN 128 3 918 943 01 WASHER STOPPER 129 3 007 455 01 SPRIN...

Page 26: ...uF 16V C214 1 164 943 11 CERAMIC CHIP 0 01uF 10 16V C216 1 164 677 11 CERAMIC CHIP 0 033uF 10 16V C217 1 164 939 11 CERAMIC CHIP 0 0022uF 10 16V C218 1 162 968 11 CERAMIC CHIP 0 0047uF 10 50V C301 1 104 847 11 TANTAL CHIP 22uF 20 4V C302 1 164 489 11 CERAMIC CHIP 0 22uF 10 16V C303 1 109 982 11 CERAMIC CHIP 1uF 10 10V C304 1 109 935 11 TANTAL CHIP 4 7uF 20 6 3V C305 1 104 847 11 TANTAL CHIP 22uF 2...

Page 27: ...STOR 2SC3931 C Q504 8 729 423 52 TRANSISTOR 2SC3931 C Q505 8 729 040 12 TRANSISTOR MUN5215T1 Q506 8 729 040 12 TRANSISTOR MUN5215T1 Q601 8 729 403 42 TRANSISTOR XN1401 Q602 8 729 402 84 TRANSISTOR XN4601 Q701 8 729 230 72 TRANSISTOR 2SA1362YG Q702 8 729 421 29 TRANSISTOR UN5216R Q703 8 729 800 71 TRANSISTOR 2SB815B7 TB Q704 8 729 425 46 TRANSISTOR XP4315 TXE Q705 8 729 422 54 TRANSISTOR XN4215 Q70...

Page 28: ...965 11 METAL CHIP 10K 5 1 16W R723 1 218 965 11 METAL CHIP 10K 5 1 16W R729 1 218 953 11 METAL CHIP 1 0K 5 1 16W R730 1 218 983 11 METAL CHIP 330K 5 1 16W R731 1 218 981 11 METAL CHIP 220K 5 1 16W R736 1 218 977 11 METAL CHIP 100K 5 1 16W R739 1 218 953 11 METAL CHIP 1 0K 5 1 16W R740 1 218 953 11 METAL CHIP 1 0K 5 1 16W R801 1 216 859 11 METAL CHIP 1 5M 5 1 16W COMPOSITION CIRCUIT BLOCK RB701 1 2...

Page 29: ...IP 33uF 20 2 5V C109 1 107 685 11 TANTAL CHIP 15uF 20 6 3V C110 1 164 346 11 CERAMIC CHIP 1uF 16V C111 1 109 935 11 TANTAL CHIP 4 7uF 20 6 3V C112 1 135 201 11 TANTALUM CHIP 10uF 20 4V FILTER CF1 1 767 357 11 FILTER CERAMIC 10 7MHz CF2 1 767 313 11 FILTER CERAMIC 10 7MHz CF3 1 767 313 11 FILTER CERAMIC 10 7MHz CF4 1 767 480 11 FILTER CERAMIC AM 450kHz TRIMMER CT1 1 141 327 11 CAP CHIP TYPE TRIMMER...

Page 30: ...HIP 470 5 1 16W R71 1 218 937 11 METAL CHIP 47 5 1 16W R72 1 218 951 11 METAL CHIP 680 5 1 16W R73 1 218 985 11 METAL CHIP 470K 5 1 16W R74 1 218 949 11 METAL CHIP 470 5 1 16W R75 1 218 973 11 METAL CHIP 47K 5 1 16W R101 1 216 827 11 METAL CHIP 3 3K 5 1 16W R102 1 216 829 11 METAL CHIP 4 7K 5 1 16W R103 1 216 832 11 METAL CHIP 8 2K 5 1 16W VARIABLE RESISTOR RV1 1 223 578 11 RES ADJ METAL GLAZE 22K...

Page 31: ... 42 WM FX855 MEMO ...

Page 32: ...ervice Manual Page 36 MT WMEX655 125 Modificated portion ECN WM800635 Former New Ref No Part No Description Remark 122 X 3374 094 1 CHASSIS S ASSY Y M901 1 698 885 11 MOTOR REEL CAPSTAN Ref No Part No Description Remark 122 X 3374 420 1 CHASSIS S ASSY M M901 X 3376 217 1 MOTOR ASSY REEL CAPSTAN 117 118 119 120 121 M901 122 123 118 119 120 121 M901 122 123 117 Caution Old and new motors are not int...

Page 33: ... 2 2 Caution when installing a new motor Always give a drop of Diamond Oil NT68 7 661 018 18 to the hole of the shaft marked with when installing a new motor X 3376 217 1 ...

Page 34: ...WM FX855 MEMO ...

Page 35: ...ge 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 3 2001 11 Change of IC502 on the AUDIO board SPM 01041 1 2 1999 04 Change of Tuner flexible board 1 1 1998 08 Supplement 1 1 0 1997 11 New ...

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