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SERVICE MANUAL

Ver 1.0  2003.01

9-874-226-01

Sony Corporation

2003A0500-1

Personal Audio Company

C

 2003.01

Published by Sony Engineering Corporation

RADIO CASSETTE PLAYER

AEP Model

SPECIFICATIONS

WM-FX522

Model Name Using Similar Mechanism

WM-FX521

Tape Transport Mechanism Type

MT-WMEX505-162

Radio section

Frequency range

FM: 87.5 - 108 MHz
AM: 531 - 1 602 kHz 

Tape section

Frequency response

Playback: 40 - 15 000 Hz

Output

Headphones (

i

) jack

Load impedance 8 - 300 

General

Power requirements

1.5 V
One R6 (size AA) battery

Dimensions (w/h/d)

Approx. 77.0  

×

  108.4  

×

  28.7 mm, excl. projecting parts and

controls

Mass

Approx. 165 g (main unit only)

Supplied accessories

• Stereo headphones/earphones with remote control or stereo

headphones/earphones (1)

Design and specifications are subject to change without notice.

Battery life* (Approx. hours)

Tape playback Radio reception

Sony alkaline LR6 (SG)**

35

65

* Measured value by the standard of JEITA (Japan Electronics

and Information Technology Industries Association). (Using
a Sony HF series cassette tape)

**When using a Sony LR6 (SG) “STAMINA” alkaline dry

battery (produced in Japan).

Note

• The battery life may be shorter depending on the

operating condition, the surrounding temperature
and battery type.

Summary of Contents for Walkman WM-FX522

Page 1: ...AA battery Dimensions w h d Approx 77 0 108 4 28 7 mm excl projecting parts and controls Mass Approx 165 g main unit only Supplied accessories Stereo headphones earphones with remote control or stereo headphones earphones 1 Design and specifications are subject to change without notice Battery life Approx hours Tape playback Radio reception Sony alkaline LR6 SG 35 65 Measured value by the standard...

Page 2: ...ematic Diagrams 17 6 4 Schematic Diagram MAIN Board 1 2 18 6 5 Schematic Diagram MAIN Board 2 2 19 6 6 Printed Wiring Board 20 6 7 IC Pin Function Description 23 7 EXPLODED VIEWS 7 1 Case Section 25 7 2 Bracket MAIN Board Section 26 7 3 Mechanism Deck Section MT WMEX505 162 27 8 ELECTRICAL PARTS LIST 28 Notes on chip component replacement Never reuse a disconnected chip component Notice that the m...

Page 3: ...wer sup ply switch is set to OFF once and then set to ON Move the DIRECTION switch S703 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 sine wave to the TP40 PHOTO IN and the TP2 GND 3 Press the RADIO OFF button S709 to set the STOP mode 4 Press the FF AMS button S707 or the REW AMS but ton S708 4 PLAY mode 1 Ch...

Page 4: ... REEL T side motor pulley idler A gear T side gear FR FF left side insert flywheel N insert flywheel R reverse pulley clutch assy F gear Y cam gear gear REEL T side motor pulley idler A gear T side gear NR FWD left side REW right side idler B gear idler A gear S side gear REEL S side insert flywheel N insert flywheel R reverse pulley clutch assy F gear Y cam gear motor pulley gear FR REW right sid...

Page 5: ...ommande Modelle mit Fernbedienung Model supplied with headphones earphones only Modèle fourni uniquement avec un casque des écouteurs Modelle mit Kopfhörer Ohrhörer RADIO OFF SET MENU TUNE PRESET TUNE PRESET ENTER BAND RADIO ON Model supplied with remote control Modèle fourni avec télécommande Modelle mit Fernbedienung Model supplied with headphones earphones only Modèle fourni uniquement avec un ...

Page 6: ... Page 7 3 9 HOLDER FS ASSY Page 10 3 10 PINCH LEVER N ASSY PINCH LEVER R ASSY Page 11 3 11 MAGNETIC HEAD PLAYBACK HP901 Page 11 3 8 MOTOR CAPSTAN REEL M901 Page 10 3 5 BATTERY HOLDER Page 8 3 7 MAIN BOARD Page 9 3 6 BELT F2 Page 8 Note 1 The process described in can be performed in any order Note 2 Without completing the process described in the next process can not be performed SET 4 cassette lid...

Page 7: ...ASSY 3 4 ORNAMENT REEL 1 three screws M1 4 1 two screws M1 4 2 Remove the case block assy to direction of the arrow knob hold S701 On installation case block assy adjust the S701 and knob hold 1 two claws 2 ornament reel 1 claw ...

Page 8: ...WM FX522 8 3 5 BATTERY HOLDER 3 6 BELT F2 2 two screws 3 battery holder 1 Break the soldering of battery terminal 1 Break the soldering of battery terminal 1 belt F2 See page 4 ...

Page 9: ...w M1 4 flexible board 1 Remove six solders of flexible board 1 Remove two solders of plunger solenoid 1 Remove four solders of motor 1 Remove four solders of leaf switch 3 main board slider NRA S703 main board On installation main board adjust the S703 and slider NRA ...

Page 10: ...FS ASSY 1 two screws M1 4 2 motor capstan reel M901 1 two screws IB lock 2 boss 3 lock lever B M 7 bracket cassette assy M 5 lock lever S M 4 screw M1 4 6 boss 9 Remove the holder FS assy to direction of the arrow 8 Remove six solders of flexible board ...

Page 11: ... LEVER R ASSY 1 claw 2 Remove the pinch lever R assy to direction of the arrow 4 Remove the pinch lever N assy to direction of the arrow 3 claw 3 11 MAGNETIC HEAD PLAYBACK HP901 1 claw 2 Remove the magnetic head HP901 to direction of the arrow ...

Page 12: ...TAPE DECK SECTION 0 dB 0 775 V TEST TAPE Type Signal Used for WS 48A 3 kHz 0 dB Tape Speed Adjustment set Test tape WS 48A 3 kHz 0 dB frequency counter 16 Ω i jack J301 PRECAUTION 1 Clean the following 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...

Page 13: ...Confirmation 108 MHz 7 7 1 V FM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter L7 87 5 MHz Confirmation 108 MHz TUNER SECTION 0 dB 1 µV AM Setting function RADIO BAND button AM FM Setting function RADIO BAND button FM digital voltmeter TP5 VT AM RF signal generator 30 amplitude modulation by 400 Hz signal Output level as low as possible Put the lead wire antenna close to the set l...

Page 14: ...14 WM FX522 MEMO ...

Page 15: ... AMRFIN AM MIX FM RF AMP FM AM MIX AMP FM AM OSC IC1 1 2 CF1 B P F FL1 FM AM D1 1 2 L4 AM FERRITE ROD ANTENNA LOCAL DX 57 VCO IN 49 BAND1 54 BAND2 55 IF REQ 65 IF IN 45 D3 L5 AM OSC A Page 16 B Page 16 TUNER L CH R CH MPXIN FM MIX FMRFIN ANT REQSW FMRFOUT FM TVOSC 20 5 OSCOUT 4 29 24 2 D1 2 2 D4 SIGNAL PATH R ch is omitted due to same as L ch L7 FM RF L7 FM TRACKING CT1 L5 AM TRACKING CT1 FM AM PO...

Page 16: ... AMP POWER AMP PW NF L BASS BOOST AMP PW IN L PW IN C BST OUT VOL RV301 i J301 S901 2 ATS PRE OUT L MTL DRV L FWD IN L REV IN L L CH R CH FWD L CH R CH REV R CH R CH R CH R CH R CH R CH R CH S703 DIRECTION OSC OSC IN MOTOR DIR AMS OUT F R SW M N SW 67 8 7 5 DR 6 10 9 11 W 3 V 1 U 19 61 XOUT 71 XIN 72 33 18 VCC 19 RFOUT 17 20 22 21 29 EQ L 30 40 BST SW 43 AGC IN 35 BEEP 39 28 32 33 AMS IN 12 7 8 46...

Page 17: ...is dc 1 5V and fed with regulated dc power supply from battery terminal Voltages and waveforms are dc with respect to ground in no signal detuned conditions no mark PLAYBACK FM AM Voltages are taken with aVOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Waveforms are taken with a oscilloscope Voltage variations may be noted due to normal produc tion to...

Page 18: ...V 0 47 2 2 470 4V 2 2k 470k 0 1 2 2 6 3V 0 022 0 022 1 2 2 2 2 0 47 4 7 4V 1 1 1 10k 2 2 2 2 0 1 1k 220p 47 4V 1000p 30k 30k 0 047 47 4V TA2154FN FM IF IN 0 022 VT 1000p 0 1 GND 2200p 0 47 4 7 4V 2 2 6 3V 0 22 A1 A2 A3 A4 A5 A6 A8 A9 A10 C1 C2 C3 C4 C5 C6 C7 D1 D2 D3 D4 D5 D6 X1 X2 X3 X4 X5 X3 X4 X5 REMOTE GND VCC DATA COM LCH RCH RFGND FM MIX AM MIX AGC Vcc GND AMIFin QUAD DETout MPXin LPF1 R OUT...

Page 19: ...C4 C5 C6 C7 COM1 COM2 COM3 COM4 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 COM1 COM2 COM3 COM4 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 D1 D2 D3 D4 D5 D6 E1 E2 E3 X1 X2 SEG16 SEG17 SEG17 E2 E1 E3 LX VSS CE VOUT NC SEG17 COM1 COM2 COM3 COM4 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 S...

Page 20: ...1 X701 T401 DC DC CONVERTER PM901 PLUNGER 1 21 LCD1 LIQUID CRYSTAL DISPLAY V W U VCC M901 CAPSTAN REEL REPEAT S710 REW AMS TUNE PRESET S708 FF AMS TUNE PRESET S707 RADIO OFF S709 x BAND RADIO ON S702 DRY BATTERY SIZE AA IEC DESIGNATION R6 1PC 1 5V MENU SET ENTER B P F 1 2 3 4 5 6 7 8 9 10 11 12 13 A B C D E F G H 4 5 3 2 1 TP61 FM RF IN TP2 GND Semiconductor Location Ref No Location D1 C 12 D3 C 3...

Page 21: ... FM OSC OSC OUT MODE2 MODE1 IF REQ IF COUNT LPF2B LPF2A L OUT IC301 TA2123AF EL PRE A PRE B MIX PW B PW A PW C BST MT TC BASE RF IN PW GND OUT B OUT C OUT A VCC RF OUT VREF OUT BST NF BST OUT PW IN C LPF EQ A PW NF A PW IN A PW IN B PW NF B 3 IN A R 5 PRE NF A 6 PRE OUT A 7 MTL DRV A 8 MTL DRV B 9 PRE OUT B 10 PRE NF B 11 AMS IN 12 IN B R 4 IN B F 2 IN A F 1 21 20 19 18 17 GND 16 AMS DET 15 AMS MI...

Page 22: ... 17 VCC 16 FC 15 TC1 14 TC2 13 R1 12 OUT 11 MOTIVE CONTROL CIRCUIT MOTIVE OSC MOTIVE LOGIC SOFT SWITCH PRE DRIVER INVERTER BIAS REFERENCE VOLTAGE SPEED CONTROL CURRENT CONTROL OUTPUT BIAS IC601 MM1279XVBE CHIP ENABLE V REF VDD 2 STEP PFM CONTROL OSC 100 180 kHz VLx LIMITER BUFFER 1 2 3 4 5 CE V OUT NC LX VSS ...

Page 23: ...ction H reverse direction 41 NC I Not used 42 EEP WRITE IN I Input terminal for the EEPROM write mode L EEPROM write mode 43 HOLD SW I HOLD switch input terminal L hold on 44 AMS IN I AMS Automatic Music Sensor detection signal input L music is present H music is not present 45 IF IN I Intermediate frequency detection signal input 46 TAPE IN I Cassette tape detection switch input terminal L casset...

Page 24: ...em clock input terminal 75 kHz 73 GND Ground terminal 74 VDB Connection terminal of doubler circuit capacitor for liquid crystal display drive power supply 75 76 C1 C2 Connection terminal of doubler circuit capacitor for liquid crystal display drive power supply 77 VEE Connection terminal of doubler circuit capacitor for liquid crystal display drive power supply 78 79 C3 C4 Connection terminal of ...

Page 25: ...mple KNOB BALANCE WHITE RED Parts Color Cabinet s Color Ref No Part No Description Remark Ref No Part No Description Remark 1 X 3382 977 1 LID ASSY CASSETTE S SILVER 1 X 3382 978 1 LID ASSY CASSETTE L BLUE 1 X 3382 979 1 LID ASSY CASSETTE R RED 2 3 225 996 09 SCREW M1 4 EG PRECISION PAN 3 3 029 219 61 KNOB OPEN for SILVER 3 3 029 219 71 KNOB OPEN for BLUE RED 4 3 029 220 11 SPRING TENSION 5 3 233 ...

Page 26: ...ED LOCK 58 A 3021 647 A MAIN BOARD COMPLETE 59 3 234 097 01 HOLDER LCD 60 3 234 413 01 RUBBER CONDUCTIVE 61 3 939 590 05 SCREW IB LOCK 62 3 038 054 01 LEVER B M LOCK 64 X 3377 719 1 BRACKET CASSETTE ASSY M 65 3 365 630 41 SCREW M1 4 66 X 3377 717 2 BRACKET ASSY M 67 3 241 345 02 CUSHION 68 3 033 757 01 SHEET H LCD1 1 804 524 11 LIQUID CRYSTAL DISPLAY S901 1 771 888 11 SWITCH LEAF TAPE DETECT ATS S...

Page 27: ...111 3 040 897 04 SPRING TGA TORSION 112 3 386 694 01 WASHER 113 3 029 306 21 FLYWHEEL N INSERT 114 3 388 079 01 BELT 115 3 029 268 21 FLYWHEEL R INSERT 116 3 007 428 01 WASHER R 117 3 029 765 01 SCREW M1 4 TOOTHED LOCK 118 3 029 274 11 RETAINER F2 MOTOR 119 3 007 433 01 SHEET N REFLECTION 120 X 3378 107 3 CHASSIS ASSY FB 121 3 010 274 02 TABLE REEL 122 3 010 954 01 SPRING BT COMPRESSION 123 3 029 ...

Page 28: ...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 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 When indicating parts by reference number please include the board C43 1 164...

Page 29: ...47T TL D3 8 719 080 77 DIODE MA2S357 E TX SO D4 8 719 080 77 DIODE MA2S357 E TX SO D401 8 719 158 49 DIODE RD12SB2 D402 8 719 404 50 DIODE MA111 TX D701 8 719 404 50 DIODE MA111 TX D801 8 719 049 09 DIODE 1SS367 T3SONY D802 8 719 404 50 DIODE MA111 TX FERRITE BEAD FB2 1 414 760 21 FERRITE 0uH FB3 1 414 760 21 FERRITE 0uH FB4 1 414 760 21 FERRITE 0uH FB5 1 500 245 22 FERRITE 0uH FB6 1 414 760 21 FE...

Page 30: ...11 RES CHIP 1K 5 1 16W R412 1 208 699 11 METAL CHIP 4 7K 0 5 1 16W R413 1 218 965 11 RES CHIP 10K 5 1 16W R414 1 208 927 11 METAL CHIP 47K 0 5 1 16W R415 1 218 985 11 RES CHIP 470K 5 1 16W R416 1 218 989 11 RES CHIP 1M 5 1 16W R417 1 208 715 11 METAL CHIP 22K 0 5 1 16W R501 1 218 953 11 RES CHIP 1K 5 1 16W R601 1 218 969 11 RES CHIP 22K 5 1 16W R602 1 218 941 81 RES CHIP 100 5 1 16W R603 1 218 953...

Page 31: ...EAD MAGNETIC PLAYBACK M901 1 763 166 14 MOTOR CAPSTAN REEL WITH PULLEY PM901 1 454 674 41 SOLENOID PLUNGER S901 1 771 888 11 SWITCH LEAF TAPE DETECT ATS ACCESSORIES 3 021 018 11 LABEL FRANCE 3 235 078 24 MANUAL INSTRUCTION ENGLISH FRENCH GERMAN 3 235 078 34 MANUAL INSTRUCTION SPANISH PORTUGUESE ITALIAN 3 235 078 44 MANUAL INSTRUCTION DUTCH SWEDISH FINNISH 3 235 078 54 MANUAL INSTRUCTION ENGLISH RU...

Page 32: ...TORY Clicking the version allows 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 01 New ...

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