Sony Walkman WM-FX571 Service Manual Download Page 5 | Manualshive

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2

screw (M1.4

×

2)

5

cassette lid assy

3

screw (M1.4

×

1.6)

1

OPEN button

4

7

AUDIO board

1

Unsolder the 3 places.

2

battery terminal (–)

4

battery terminal (+)

3

Unsolder the 5 places.

5

Flexible board

6

3-3. AUDIO BOARD

3-4. CASSETTE LID ASSY

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Summary of Contents for Walkman WM-FX571

Page 1: ...A battery Rechargeable battery Dimensions w h d Approx 109 79 2 29 4 mm 4 3 8 3 1 8 1 3 16 inches incl projecting parts and controls Mass Approx 150 g 5 3 oz Approx 210 g 7 5 oz incl a battery and a cassette Supplied accessories Stereo earphones with remote control MDR WMF653 1 Battery charger BC 820T 1 AC plug adaptor 1 Rechargeable battery NC AA 1 Battery R6P SR 1 Carrying pouch 1 Design and spe...

Page 2: ...io Section 20 6 6 Printed Wiring Board Audio Section 23 7 EXPLODED VIEWS 7 1 Cabinet Section 29 7 2 Audio and Tuner Board Section 30 7 3 Tape Mechanism Section 31 8 ELECTRICAL PARTS LIST 32 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 careful not...

Page 3: ...rm sections 3 1 and 3 2 of the DISASSEMBLY and attach the JIG extension cable to the AUDIO board as shown below JIG Part No J 2503 005 A 1 OPEN knob 2 Display window 3 PRESET AMS FF Fast Forward button 4 TUNING button 5 TUNING button 6 ENTER button 7 PRESET AMS REW Rewind button 8 MENU button 9 RADIO ON BAND button º SET button p RADIO OFF button REPEAT button VOLUME control C HOLD knob 2 REMOTE j...

Page 4: ... claws 3 screws M1 4 2 2 1 screw M1 4 2 2 2 screw M1 4 3 0 5 CASE ASSY TUNER BOARD AUDIO BOARD CASSETTE LID ASSY TAPE MECHANISM DECK SET SECTION 3 DISASSEMBLY Note Follow the disassembly procedure in the numerical order given 3 1 CASE ASSY 3 2 TUNER BOARD Note Disassemble the unit in the order as shown below ...

Page 5: ... 4 2 5 cassette lid assy 3 screw M1 4 1 6 1 OPEN button 4 7 AUDIO board 1 Unsolder the 3 places 2 battery terminal 4 battery terminal 3 Unsolder the 5 places 5 Flexible board 6 3 3 AUDIO BOARD 3 4 CASSETTE LID ASSY ...

Page 6: ... 6 2 1 3 4 reel ornament 5 tape mechanism deck 3 5 TAPE MECHANISM DECK ...

Page 7: ...Test tape WS 48A 3kHz 0dB set 16Ω 2 REMOTE jack J701 Frequency counter RV601 Tape speed SECTION 4 MECHANICAL ADJUSTMENTS PRECAUTION 1 Clean the following parts with a denatured alcahol moistened sweb Playback head Pinch roller Rubber belt Capstan 2 Demagnetize the playback head using a demagnetizer 3 Do not use a magnetized screwdriver for adjustments 4 After adjusting apply screw locking compound...

Page 8: ...1 1 395kHz FM IF ADJUSTMENT Adjust for a maximum reading on level meter L3 10 7MHz FM VOLTAGE ADJUSTMENT 1 05 to 1 15 V L2 76MHz L3 FM IF Adjustment TP1 TP13 IC7 L2 FM Voltage Adjustment RV1 FM VCO Adjustment L4 AM Tracking Adjustment CT1 AM Tracking Adjustment 100Ω Frequency counter 1µF TP23 IC7 pin IC7 pin 9 FM RF signal generator Carrier frequency 98MHz Modulation No moduration Output level 0 1...

Page 9: ... 3 S1 to 22 P13 1 P13 2 P13 3 P14 0 P14 1 P14 2 P14 3 IN2 K0 K1 K2 K3 P1 1 P1 2 P1 3 P2 0 AD IN1 P2 1 AD IN2 P2 2 P2 3 P3 0 P3 1 P3 2 P3 3 BUZR P4 0 P4 1 P4 1 P4 2 P4 3 P5 0 P5 1 P5 2 P5 3 P6 0 P6 1 P6 2 P6 3 MUTE TEST IF IN DO1 OT DO2 HOLD PSC GND INT H Hi imp Hi imp Hi imp Hi imp L Hi imp L L L L H L L L L L L L L H L L L L Hi imp Hi imp Hi imp L L H ACT L L Hi imp L VCC AD Vrcl H H H H H H H L ...

Page 10: ... 13 14 15 WM FX571 16 6 3 PRINTED WIRING BOARD TUNER SECTION ...

Page 11: ...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 Printed inductor Signal path F FM f AM Ref No Location D1 B 20 D2 B 19 D3 A 21 D4 D 19 D5 D 17 D6 E 13 D7 E 13 D8 E 14 D9 E 16 IC1 B 13 IC2 B 18 IC3 B 19 IC4 E 13 IC5 B 12 IC6 G 12 IC7 F 20 Q1 A 19 Q2 B 21 Q3 C 20 Q4 C 20 Q...

Page 12: ...lled Power voltage is dc 1 5 V and fed with regulated dc power supply from external power voltage jack Voltage and waveforms are dc with respect to ground under no signal detuned conditions no mark PB FM 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 ...

Page 13: ... Q304 D 4 Q306 C 12 Q601 D 19 Q602 D 18 Q701 G 14 Q702 G 14 Q704 E 17 Semiconductor Location Note r Through hole b Pattern from the side which enables seeing The other layer s patterns are not indicated Caution Pattern face side Parts on the pattern face side seen from the Side B pattern face are indicated Parts face side Parts on the parts face side seen from the Side A parts face are indicated ...

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Page 18: ...TORSION 112 3 007 436 01 SPRING TRIGGER TORSION 113 X 3372 848 1 CLUTCH ASSY M 114 3 016 696 01 GEAR FRN 115 X 3372 853 1 LEVER FRG ASSY 116 3 007 432 01 SHEET R REFLECTION 117 3 029 765 01 SCREW M1 4 TOOTHED LOCK 118 X 3374 094 1 CHASSIS S ASSY F 119 3 019 710 01 SPRING R TORSION 120 3 007 458 01 SPRING H B TENSION 121 3 019 709 01 SPRING N TORSION 122 3 007 454 01 SPRING FR TORSION 123 3 007 457...

Page 19: ...F 20 6 3V C209 1 164 174 11 CERAMIC CHIP 0 0082uF 10 25V C210 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C211 1 107 823 11 CERAMIC CHIP 0 47uF 10 16V C212 1 115 156 11 CERAMIC CHIP 1uF 10V C213 1 115 156 11 CERAMIC CHIP 1uF 10V C214 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V C215 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C216 1 115 156 11 CERAMIC CHIP 1uF 10V C217 1 115 156 11 CERAMIC CHIP 1uF 10V C219 1...

Page 20: ...16W R204 1 216 824 11 METAL CHIP 1 8K 5 1 16W R205 1 216 825 11 METAL CHIP 2 2K 5 1 16W R207 1 216 795 11 RES CHIP 6 8 5 1 16W R208 1 218 270 11 RES CHIP 1 1K 5 1 16W R209 1 216 834 11 METAL CHIP 12K 5 1 16W R210 1 216 852 11 METAL CHIP 390K 5 1 16W R211 1 216 822 11 METAL CHIP 1 2K 5 1 16W R212 1 216 824 11 METAL CHIP 1 8K 5 1 16W R213 1 216 809 11 METAL CHIP 100 5 1 16W R214 1 216 840 11 METAL C...

Page 21: ...115 156 11 CERAMIC CHIP 1uF 10V C38 1 164 227 11 CERAMIC CHIP 0 022uF 10 25V C39 1 135 151 21 TANTALUM CHIP 4 7uF 20 4V C40 1 115 156 11 CERAMIC CHIP 1uF 10V C41 1 165 176 11 CERAMIC CHIP 0 047uF 10 16V C42 1 164 362 11 CERAMIC CHIP 470PF 5 50V C43 1 104 908 11 TANTAL CHIP 47uF 20 2 5V C44 1 164 227 11 CERAMIC CHIP 0 022uF 10 25V C45 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C46 1 162 965 11 CERAMIC...

Page 22: ...29 037 63 TRANSISTOR UN9115J TX SO Q16 8 729 028 69 TRANSISTOR 2SC4655 BC TX Q17 8 729 028 69 TRANSISTOR 2SC4655 BC TX Q18 8 729 800 71 TRANSISTOR 2SB815B7 TB Q21 8 729 037 63 TRANSISTOR UN9115J TX SO RESISTOR R1 1 216 825 11 METAL CHIP 2 2K 5 1 16W R2 1 216 853 11 METAL CHIP 470K 5 1 16W R3 1 216 853 11 METAL CHIP 470K 5 1 16W R4 1 216 821 11 METAL CHIP 1K 5 1 16W R5 1 216 813 11 METAL CHIP 220 5...

Page 23: ...849 11 METAL CHIP 220K 5 1 16W R75 1 216 845 11 METAL CHIP 100K 5 1 16W R76 1 216 835 11 METAL CHIP 15K 5 1 16W R77 1 216 819 11 METAL CHIP 680 5 1 16W R78 1 216 821 11 METAL CHIP 1K 5 1 16W R79 1 216 821 11 METAL CHIP 1K 5 1 16W R80 1 216 821 11 METAL CHIP 1K 5 1 16W R82 1 216 805 11 METAL CHIP 47 5 1 16W VARIABLE RESISTOR RV1 1 223 578 11 RES ADJ METAL GLAZE 22K SWITCH S1 1 692 453 11 SWITCH KEY...

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