Sony Walkman WM-FX888 Service Manual Download Page 6

Page: 6 / 34

WM-FX888

lever (hold)

Note: On installation

cassette lid assy adjust
the S2 and lever (hold).

cassette lid assy

Close terminal board assy.

two screws (M1.4)

screw (M1.4)

claw

open battery lid.

battery lid

case section

two screws (M1.4)

• This set can be disassembled in the order shown below.

3-1.

DISASSEMBLY FLOW

SECTION 3

DISASSEMBLY

Note:

Follow the disassembly procedure in the numerical order given.

3-2.

CASE SECTION

set

3-2. CASE SECTION

(page 6)

3-6. CASSETTE LID SUB ASSY

(page 8)

3-7. REEL ORNAMENT BLOCK ASSY

(page 9)

3-8. HOLDER (F) ASSY (/M)

(page 9)

3-9. PINCH LEVER (RA)/(NA) ASSY

(page 10)

3-10. MAGNETIC HEAD

(PLAYBACK) (HP901)
(page 10)

3-3. MAIN BOARD

(page 7)

3-4. BELT (F2)

(page 7)

3-5. MOTOR

(CAPSTAN/REEL)
(page 8)

www. xiaoyu163. com

QQ 376315150

TEL 13942296513

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

Summary of Contents for Walkman WM-FX888

Page 1: ...AC power adaptor 1 Battery case 1 Stereo headphones or earphones with remote control 1 Charging stand 1 Rechargeable battery NC 6WM 1 2 V 600 mAh Ni Cd 1 Rechargeable battery carrying case 1 Carrying pouch 1 Design and specifications are subject to change without notice Battery life Approx hours JEITA Sony alkaline LR6 SG Tape playback 36 Radio reception 32 Rechargeable battery NC 6WM Tape playbac...

Page 2: ...tion 25 7 4 Mechanism Deck Section 1 MF WMFX671 162 26 7 5 Mechanism Deck Section 2 MF WMFX671 162 27 7 6 Mechanism Deck Section 3 MF WMFX671 162 28 8 ELECTRICAL PARTS LIST 29 Notes on chip component replacement Never reuse a disconnected 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 ...

Page 3: ...cording 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 sine wave to the Q15 1 COLLEC TOR and the TP23 GND 3 Press the RADIO OFF button S3 to set the STOP mode 4 Press the FF button S4 or the REW button S5 4 PLAY mode 1 Check that the preset state is set 2 Input the square wave or sine wave to the Q15 1 COLLEC TOR and the...

Page 4: ...ey clutch assy F idler gear B gear Y cam gear gear REEL side T gear REEL side S motor pulley idler gear A side T idler gear A side S gear NR FWD left side REV right side insert flywheel N insert flywheel R reverse pulley clutch assy F gear Y cam gear gear REEL side S motor pulley idler gear A side S gear FR REW right side www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 ...

Page 5: ... FWD forward side REV reverse side There is a tactile dot beside VOL on the main unit to show the direction to turn up the volume The button has a tactile dot SECTION 2 GENERAL This section is extracted from instruction manual www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 8...

Page 6: ...sembly procedure in the numerical order given 3 2 CASE SECTION set 3 2 CASE SECTION page 6 3 6 CASSETTE LID SUB ASSY page 8 3 7 REEL ORNAMENT BLOCK ASSY page 9 3 8 HOLDER F ASSY M page 9 3 9 PINCH LEVER RA NA ASSY page 10 3 10 MAGNETIC HEAD PLAYBACK HP901 page 10 3 3 MAIN BOARD page 7 3 4 BELT F2 page 7 3 5 MOTOR CAPSTAN REEL page 8 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9...

Page 7: ...eaf switch S901 slider S2 Note On installation MAIN board adjust the S2 and slider 2 battery terminal board 1 Remove solder of battery terminal board 3 belt F2 motor pulley reverse pulley insert flywheel R belt F2 insert flywheel N www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315...

Page 8: ...4 2 two screws M1 4 2 screw M1 4 3 boss 1 Open knob open 4 cassette lid sub assy www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 9: ...3 lock lever B M 5 lock lever S M 1 two screws IB lock 4 screws M1 4 8 Remove six solders of head flexible board 9 holder F assy M www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 10: ... Remove pinch lever NA assy in the direction of the arrow holder F assy M 3 claw 1 claw 2 4 magnetic head playback HP901 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 11: ... parts with a denatured alcohol moistened swab playback head pinch roller rubber belts capstan 2 Demagnetize the playback head with a head demagnetizer Do not bring the head demagnetizer close to the erase head 3 Do not use a magnetized screwdriver for the adjustments 4 The adjustments should be performed with the rated power supply voltage 1 3 V unless otherwise noted Torque Measurement Mode Torq...

Page 12: ...uency counter Specification 18 95 kHz to 19 05 kHz Adjustment Location 0 001 µF FM RF SSG Carrier frequency 98 MHz Modulation no modulation Output level 0 1 V 100 dB TP1 FM IN digital voltmeter TP2 VT IC2 pin qs 1 µF frequency counter 33 kΩ MAIN Board Side B TP1 FM IN IC2 1 12 T2 AM IF Adjustment T1 AM VT Voltage Adjustment L2 FM VT Voltage Adjustment RV1 FM VT Adjustment RV601 Tape Speed Adjustme...

Page 13: ...SWITCHING Q12 LOW PASS FILTER Q5 6 IF BUFFER Q2 FM AM D3 1 2 L5 AM FERRITE ROD ANTENNA DO 66 64 AM IN 71 LOCAL DX SWITCHING Q3 FM IF AMP Q7 14 LOCAL DX 65 FM IN 70 D2 T1 AM OSC L2 FM OSC A Page 14 C Page 14 D Page 14 B Page 14 AM RF AMP Q10 TUNER L CH DDC2 CTL MUTE R CH FM B RF B Q11 SWITCHING AM FM MPX IN PILOT IN Q13 IF IN 68 MONO ST MIX OUT RF IN ANT IF REQ RF OUT OSC 11 4 6 8 5 1 D3 2 2 D1 SIG...

Page 14: ... CH FWD L CH R CH REV R CH R CH R CH R CH R CH R CH R CH R CH S1 DIRECTION OSC OSC CTL MOTOR DIR AMS OUT SW F R SW M N SW 61 8 7 5 DR 6 10 9 11 W 3 V 1 U 19 36 XOUT 74 XIN 75 51 18 VCC 19 RF OUT 17 2 5V B 20 22 21 29 EQ L 30 40 BST SW 43 AGC IN 35 BEEP 39 28 32 33 AMS IN 12 4 5 7 8 46 44 F R CTL PLAY 29 TAPE 52 F R SW 44 DOLBY CTL 59 DOLBY VCC CTL 23 AVLS CTL 54 MB GRV CTL 57 AMS IN 37 BST CTL 55 ...

Page 15: ...due to normal produc tion tolerances Waveforms are taken with a oscilloscope Voltage variations may be noted due to normal produc tion tolerances Circled numbers refer to waveforms Signal path F FM f AM E PLAYBACK Note The components identified by mark 0 or dotted line with mark 0 are critical for safety Replace only with part number specified Caution Pattern face side Parts on the pattern face si...

Page 16: ... K A D305 K A D5 A K A K A K D304 D302 D303 A K FB1 FB2 FB3 FB4 D101 A K A K A K D201 D301 FB6 FB7 FB5 RB1 11 11 1 683 354 MAIN BOARD SIDE A T801 VCC DATA REMO GND R L COM i J701 2 1 VOL RV301 A B C D E F G H I 1 2 3 4 5 6 7 8 9 10 11 12 13 14 TP23 GND JC101 JC201 6 4 PRINTED WIRING BOARD MAIN Board Side A D5 C 11 D101 D 12 D201 D 12 D301 D 13 D302 B 12 D303 B 12 D304 B 11 D305 H 11 D801 E 5 D802 ...

Page 17: ...F2 C32 C13 C308 C305 C304 C302 C307 C301 C101 C201 C51 X1 X2 S3 S4 S5 MENU S6 S8 S10 SET S7 S901 1 TAPE DETECT S901 2 ATS FWD REV L ch R ch R ch L ch HP901 PLAYBACK 1 2 3 4 5 6 2 1 3 4 5 6 RV1 BAND ASP RADIO ON RV601 AMS TUNE PRESET FF REW S4 S5 bB REPEAT S9 S10 RB601 TP1 FM IN D1 D2 K A K A D4 A K A K A D3 D6 A K Q3 B C E Q4 B C E E C B E C B Q7 Q14 E C B Q10 Q16 B C E E B C Q17 E C B Q13 Q6 B C ...

Page 18: ... dotted line with mark 0 are critical for safety Replace only with part number specified w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 19: ...r dotted line with mark 0 are critical for safety Replace only with part number specified w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 20: ...8 C AMP SW 37 PW SW 42 MT SW 41 F R SW 44 BST SW 43 M N SW 46 PRE GND 47 VREF IN 48 PRE SW 45 AMS OUT 40 BEEP 39 26 27 28 29 30 31 32 33 34 DET 36 AGC IN 35 EQ B 25 RIPPLE FILTER AGC DET BEEP VREF SWITCH COMPARATOR MTL DRV IC302 NJM2185AV TE2 8 9 10 14 13 12 2 1 3 A CH BLOCK 11 7 6 5 4 G2 G1 V I WEIGHT BIAS CIRCUIT GM SUM V SW VEXT OUTA DCA DETA INA GND IREF VREF OUTB DCB DETB INB B CH BLOCK SAME ...

Page 21: ... detection circuit on 39 PHOTO IN I Rotation detection signal input of the capstan reel motor 40 DDC1 CTL O Power on off control signal output of the DC DC converter circuit H power on 41 HOLD SW I HOLD switch input terminal L hold on 42 BATT DET I Battery voltage detection signal input A D input 43 KEY IN I Key input terminal A D input 44 F R SW I Tape direction switch input terminal A D input L ...

Page 22: ... AM IN I AM VCO input terminal 72 VDD Power supply terminal 2 5V 73 RESET I System reset signal input L reset 74 XOUT O Main system clock output terminal 75 kHz 75 XIN I Main system clock input terminal 75 kHz 76 VXT Connection terminal of external capacitor for oscillator circuit power supply 77 VLCD Connection terminal of doubler circuit capacitor for liquid crystal display drive power supply 78...

Page 23: ...ark 1 3 034 068 61 LID BATTERY BLUE 1 3 034 068 71 LID BATTERY SILVER 2 3 029 219 02 KNOB OPEN 3 3 029 220 11 SPRING TENSION 4 3 233 968 01 ORNAMENT REEL BLUE 4 3 233 968 11 ORNAMENT REEL WHITE SILVER 5 3 225 996 09 SCREW M1 4 EG PRECISION PAN SILVER 5 3 225 996 10 SCREW M1 4 EG PRECISION PAN BLACK 6 X 3381 199 1 CASSETTE ASSY LID SILVER 6 X 3381 200 1 CASSETTE ASSY LID BLUE 7 X 3381 692 1 CASE AS...

Page 24: ... BRACKET CASSETTE ASSY M 57 3 038 054 01 LEVER B M LOCK 58 3 939 590 05 SCREW IB LOCK 59 3 893 942 11 SCREW 1 7X3 TAPPING B 60 3 038 056 01 TERMINAL BOARD MINUS M S901 1 762 553 11 SWITCH LEAF TAPE DETECT ATS S901 MF WMFX671 162 main section 55 56 54 57 58 53 52 51 53 60 59 59 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ...

Page 25: ...D BATTERY 106 3 031 460 01 SHEET BT 107 X 3377 726 2 TERMINAL BOARD ASSY M L5 1 424 975 11 ANTENNA FERRITE ROD LCD1 1 803 469 21 DISPLAY PANEL LIQUID CRYSTAL X2 1 577 262 11 VIBRATOR CRYSTAL 75kHz 103 101 102 104 106 107 105 LCD1 L5 X2 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 37...

Page 26: ...R REEL 159 3 029 281 01 GEAR IDLER B 160 3 040 897 04 SPRING TGA TORSION 161 3 029 273 01 GEAR FR 162 3 007 433 12 SHEET N REFLECTION 163 3 029 282 12 GEAR Y 164 3 029 285 12 GEAR CAM PM901 1 454 674 32 SOLENOID PLUNGER PM901 154 153 160 162 162 151 151 152 152 155 156 157 159 158 158 161 163 163 164 mechanism deck section 2 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9...

Page 27: ...WASHER R 209 3 029 268 21 FLYWHEEL R INSERT 210 3 029 765 01 SCREW M1 4 TOOTHED LOCK 211 3 029 274 02 RETAINER F2 MOTOR 212 X 3377 584 5 CHASSIS ASSY FA 213 3 029 288 11 PULLEY REVERSE M601 1 763 166 14 MOTOR CAPSTAN REEL WITH PULLEY 206 M601 205 208 209 210 211 202 212 213 201 204 203 207 mechanism deck section 3 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 ...

Page 28: ...377 362 1 LEVER NA ASSY PINCH 254 3 046 789 01 SPRING HDA 255 X 3377 363 1 LEVER RA ASSY PINCH HP901 1 500 576 11 HEAD MAGNETIC PLAYBACK HP901 253 251 254 255 252 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 29: ...e Some delay should be anticipated when order ing these items SEMICONDUCTORS In each case u µ for example uA µA uPA µPA uPB µPB uPC µPC uPD µPD CAPACITORS uF µF COILS uH µH The components identified by mark 0 or dotted line with mark 0 are critical for safety Replace only with part number specified When indicating parts by reference number please include the board C41 1 110 563 11 CERAMIC CHIP 0 0...

Page 30: ...67 362 11 FILTER CERAMIC 10 7MHz CF2 1 767 480 11 FILTER CERAMIC AM 450kHz DIODE D1 8 719 050 97 DIODE MA357 E TX SO D2 8 719 050 97 DIODE MA357 E TX SO D3 8 719 072 58 DIODE SVC347 TL D4 8 719 404 50 DIODE MA111 TX D5 8 719 049 09 DIODE 1SS367 T3SONY D6 8 719 422 37 DIODE MA8051 D101 8 719 422 37 DIODE MA8051 D201 8 719 422 37 DIODE MA8051 D301 8 719 422 37 DIODE MA8051 D302 8 719 422 37 DIODE MA...

Page 31: ...6W R25 1 216 845 11 METAL CHIP 100K 5 1 16W R26 1 216 833 11 METAL CHIP 10K 5 1 16W R27 1 216 853 11 METAL CHIP 470K 5 1 16W R28 1 216 845 11 METAL CHIP 100K 5 1 16W R29 1 216 839 11 METAL CHIP 33K 5 1 16W R30 1 216 833 11 METAL CHIP 10K 5 1 16W R31 1 216 843 11 METAL CHIP 68K 5 1 16W R32 1 216 825 11 METAL CHIP 2 2K 5 1 16W R33 1 216 825 11 METAL CHIP 2 2K 5 1 16W R34 1 216 857 11 METAL CHIP 1M 5...

Page 32: ...TAL CHIP 100K 5 1 16W COMPOSITION CIRCUIT BLOCK RB1 1 233 811 21 RES NETWORK 470K 3216 RB601 1 233 873 21 RES NETWORK 220K CHIP TYPE 3216 VARIABLE RESISTOR RV1 1 238 091 11 RES ADJ CERMET 22K RV301 1 225 684 21 RES VAR CARBON 30K 30K VOL RV601 1 238 088 11 RES ADJ CERMET 2 2K SWITCH S1 1 771 475 21 SWITCH SLIDE DIRECTION S2 1 572 922 11 SWITCH SLIDE HOLD S3 1 771 053 21 SWITCH KEY BOARD x RADIO OF...

Page 33: ...xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 34: ...he revised page allows you to jump to the next revised page Ver Date Description of Revision 1 0 2001 11 New www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

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