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Sony SRF-M75PM - Walkman AM/FM Stereo Radio, Service Manual

The Sony SRF-M75PM Walkman AM/FM Stereo Radio is a compact and portable device that guarantees an exceptional audio experience. With its sleek design and user-friendly controls, you can easily tune in to your favorite stations. For detailed instructions on how to maximize its features, the Service Manual is available for free download on manualshive.com.

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– 23 –

Ref. No.

Part No.

Description

Remark

Ref. No.

Part No.

Description

Remark

KEY     MAIN

<TRANSISTOR>

Q101

8-729-402-19 TRANSISTOR

XN6501

Q102

8-729-402-16 TRANSISTOR

XN4608

Q103

8-729-402-19 TRANSISTOR

XN6501

Q104

8-729-402-16 TRANSISTOR

XN4608

Q105

8-729-120-28 TRANSISTOR

2SC1623-L5L6

Q106

8-729-120-28 TRANSISTOR

2SC1623-L5L6

<RESISTOR>

R105

1-216-065-00 RES, CHIP

4.7K

5%

1/10W

R106

1-216-089-00 RES, CHIP

47K

5%

1/10W

R107

1-216-089-00 RES, CHIP

47K

5%

1/10W

R108

1-216-089-00 RES, CHIP

47K

5%

1/10W

R109

1-216-097-00 RES, CHIP

100K

5%

1/10W

R110

1-216-821-11 METAL CHIP

1K

5%

1/16W

R111

1-216-821-11 METAL CHIP

1K

5%

1/16W

R112

1-216-821-11 METAL CHIP

1K

5%

1/16W

R113

1-216-821-11 METAL CHIP

1K

5%

1/16W

R114

1-216-833-11 RES, CHIP

10K

5%

1/16W

R115

1-216-833-11 RES, CHIP

10K

5%

1/16W

R116

1-216-833-11 RES, CHIP

10K

5%

1/16W

R117

1-216-833-11 RES, CHIP

10K

5%

1/16W

R118

1-216-833-11 RES, CHIP

10K

5%

1/16W

R120

1-216-049-11 RES, CHIP

1K

5%

1/10W

R121

1-216-073-00 METAL CHIP

10K

5%

1/16W

R123

1-216-833-11 RES, CHIP

10K

5%

1/16W

R126

1-216-109-00 METAL CHIP

330K

5%

1/10W

R128

1-216-833-11 RES, CHIP

10K

5%

1/16W

R129

1-216-845-11 METAL CHIP

100K

5%

1/16W

R130

1-216-833-11 RES, CHIP

10K

5%

1/16W

R131

1-216-845-11 METAL CHIP

100K

5%

1/16W

R132

1-216-827-11 METAL CHIP

3.3K

5%

1/16W

R133

1-216-049-11 RES, CHIP

1K

5%

1/10W

R134

1-216-097-00 RES, CHIP

100K

5%

1/10W

R135

1-216-097-00 RES, CHIP

100K

5%

1/10W

R136

1-216-089-00 RES, CHIP

47K

5%

1/10W

R137

1-216-017-00 RES, CHIP

47

5%

1/10W

R138

1-216-825-11 METAL CHIP

2.2K

5%

1/16W

R139

1-216-845-11 METAL CHIP

100K

5%

1/16W

R140

1-216-833-11 RES, CHIP

10K

5%

1/16W

R141

1-216-821-11 METAL CHIP

1K

5%

1/16W

R142

1-216-805-11 METAL CHIP

47

5%

1/16W

R152

1-216-814-11 METAL CHIP

270

5%

1/16W

R153

1-216-821-11 METAL CHIP

1K

5%

1/16W

R154

1-216-857-11 METAL CHIP

1M

5%

1/16W

R155

1-216-864-11 METAL CHIP

0

5%

1/16W

R156

1-216-853-11 METAL CHIP

470K

5%

1/16W

R157

1-216-845-11 METAL CHIP

100K

5%

1/16W

R158

1-216-845-11 METAL CHIP

100K

5%

1/16W

R159

1-216-825-11 METAL CHIP

2.2K

5%

1/16W

R160

1-216-825-11 METAL CHIP

2.2K

5%

1/16W

R161

1-216-837-11 METAL CHIP

22K

5%

1/16W

R162

1-216-841-11 METAL CHIP

47K

5%

1/16W

R163

1-216-833-11 RES, CHIP

10K

5%

1/16W

R164

1-216-841-11 METAL CHIP

47K

5%

1/16W

R165

1-216-841-11 METAL CHIP

47K

5%

1/16W

R171

1-216-833-11 RES, CHIP

10K

5%

1/16W

R172

1-216-833-11 RES, CHIP

10K

5%

1/16W

R173

1-216-833-11 RES, CHIP

10K

5%

1/16W

R174

1-216-833-11 RES, CHIP

10K

5%

1/16W

R175

1-216-845-11 METAL CHIP

100K

5%

1/16W

R176

1-216-049-11 RES, CHIP

1K

5%

1/10W

R177

1-216-049-11 RES, CHIP

1K

5%

1/10W

R178

1-216-821-11 METAL CHIP

1K

5%

1/16W

R179

1-216-821-11 METAL CHIP

1K

5%

1/16W

R180

1-216-845-11 METAL CHIP

100K

5%

1/16W

R181

1-216-837-11 METAL CHIP

22K

5%

1/16W

R183

1-216-849-11 METAL CHIP

220K

5%

1/16W

<VARIABLERESISTOR >

RT102

1-223-581-11 RES, ADJ, CARBON 220

<SWITCH>

S113

1-572-499-11 SWITCH, TACTIL (POWER)

S114

1-572-499-11 SWITCH, TACTIL (HOLD)

S115

1-572-499-11 SWITCH, TACTIL (START/STOP)

S116

1-572-499-11 SWITCH, TACTIL (LAP/RESET)

<TRANSFORMER>

T101

1-449-138-71 TRANSFORMER, DC-DC CONVERTER

<VIBRATOR>

X101

1-767-517-11 VIBRATOR, CRYSTAL (75kHz)

**************************************************************

*

A-3663-262-A MAIN BOARD, COMPLETE (EXCEPT Panama)

*

A-3663-288-A MAIN BOARD, COMPLETE (Panama)

*********************

3-033-937-01 HOLDER (BAR ANT)

< BAND PASS FILTER >

BPF1

1-235-171-00 FILTER, BAND PASS

< CAPACITOR >

C1

1-163-141-00 CERAMIC CHIP

0.001uF

5%

50V

C2

1-163-141-00 CERAMIC CHIP

0.001uF

5%

50V

C3

1-163-092-00 CERAMIC CHIP

9PF

0.25PF 50V

C4

1-162-908-11 CERAMIC CHIP

3PF

0.25PF 50V

C5

1-163-809-11 CERAMIC CHIP

0.047uF

10%

25V

C6

1-163-131-00 CERAMIC CHIP

390PF

5%

50V

C7

1-163-231-11 CERAMIC CHIP

15PF

5%

50V

C8

1-163-251-11 CERAMIC CHIP

100PF

5%

50V

C9

1-163-021-11 CERAMIC CHIP

0.01uF

10%

50V

C10

1-126-157-11 ELECT

10uF

20%

16V

C11

1-126-157-11 ELECT

10uF

20%

16V

C12

1-126-162-11 ELECT

3.3uF

20%

50V

C13

1-113-619-11 CERAMIC CHIP

0.47uF

10V

C14

1-135-181-21 TANTALUM CHIP 4.7uF

20%

6.3V

C16

1-162-970-11 CERAMIC CHIP

0.01uF

10%

25V

C17

1-164-156-11 CERAMIC CHIP

0.1uF

25V

C18

1-135-259-11 TANTALUM CHIP 10uF

20%

6.3V

C19

1-164-346-11 CERAMIC CHIP

1uF

16V

C20

1-135-181-21 TANTALUM CHIP 4.7uF

20%

6.3V

C21

1-124-584-00 ELECT

100uF

20%

10V

Summary of Contents for SRF-M75PM - Walkman AM/FM Stereo Radio

Page 1: ...CROFILM SERVICE MANUAL FM STEREO AM PLL SYNTHESIZED RADIO US Model Canadian Model AEP Model E Model Australian Model SPECIFICATIONS SRF M75PM US Canadian and E models AEP Australian models Ver 1 0 1999 04 ...

Page 2: ...microprocessor can be reset in the following proce dure Use these procedure when the unit cannot be worked normally due to the overrunning of the microprocessor etc Procedure 1 Set to radio OFF 2 While pressing the SCAN button press two buttons of START STOP and BAND simultaneously for 5 seconds 3 The unit is reset and display blinking AM 12 00 Notes on chip component replacement Never reuse a dis...

Page 3: ... 3 SECTION 2 GENERAL This section is extracted from instruction manual US Canadian and E models AEP Australian models ...

Page 4: ...ard Main Board Knob A Cabinet Rear Assy Cabinet Front Assy 2 three screws B1 7 8 2 two screws B1 7 8 1 Remove the battery case lid of the arrow 3 cabinet front assy 4 cabinet rear assy 1 three claws 2 Open the key board to direction of the arrow 1 four claws Note Follow the disassembly procedure in the numerical order given ...

Page 5: ...OB A Note Check that two switch S1 S2 is latched with two adaptors when carrying out installation 2 screw B1 7 8 1 Remove two solders 3 knob vol 4 two claws S1 S2 5 main board 2 two knobs A 1 claw 1 claw 3 two adaptors ...

Page 6: ...mes and the tracking adjustments should be finally done by the trimmer ca pacitors Adjustment Location Main Board See page 7 FM RF signal generator 22 5 kHz frequency deviation by 400 Hz signal Output level as low as possible level meter 2 jack J1 set MAIN board TP FM IN 32 Ω 0 01 µF digital voltmeter MAIN board TP VT FM Free Run Adjustment Setting Procedure 1 Connect the frequency counter to TP M...

Page 7: ... Adjustment Location MAIN BOARD Conductor Side L4 AM VCO Voltage Adjustment RT1 FM Free Run Adjustment CT1 AM Tracking Adjustment L1 AM Tracking Adjustment T1 AM IF Adjustment FM Tracking Adjustment CT2 L2 TP MPX TP FM IN TP VT J1 ...

Page 8: ...n the KEY board 2 Press the PULSE button S112 to enter pulse monitor mode 3 Adjust RT102 for 0 24 V reading on the digital voltmeter Specification 0 22 to 0 26 V Adjustment Location digital voltmeter KEY board TP LED KEY BOARD Component Side KEY BOARD Conductor Side RT102 Luminance Adjustment TP LED ...

Page 9: ...AY LCD101 VOLTAGE DETECT IC102 B SWITCH Q104 DC DC CONVERTER Q103 T101 B SWITCH Q6 AM IF BUFFER Q4 5 LOW PASS FILTER Q101 SIGNAL PATH FM AM 05 POWER AMP MUTE CONTROL BUFFER Q105 106 LUMINANCE PULSE METER COMPARATOR IC103 RIPPLE FILTER Q2 B SWITCH Q102 REGULATOR IC104 KEY MATRIX S101 116 KS0 KS3 KR0 KR3 X101 75kHz SYSTEM CONTROLLER IC101 EEPROM IC105 B FM AM TUNER IC1 HEADPHONE AMP IC3 B BASS BOOST...

Page 10: ......

Page 11: ... terminal Voltages and waveforms are dc with respect to ground under no signal detuned conditions no mark FM AM PULSE Impossible to measure 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 tolerances Circled numbers refer to wavefo...

Page 12: ......

Page 13: ......

Page 14: ......

Page 15: ......

Page 16: ...CHIP 100K 5 1 16W R159 1 216 825 11 METAL CHIP 2 2K 5 1 16W R160 1 216 825 11 METAL CHIP 2 2K 5 1 16W R161 1 216 837 11 METAL CHIP 22K 5 1 16W R162 1 216 841 11 METAL CHIP 47K 5 1 16W R163 1 216 833 11 RES CHIP 10K 5 1 16W R164 1 216 841 11 METAL CHIP 47K 5 1 16W R165 1 216 841 11 METAL CHIP 47K 5 1 16W R171 1 216 833 11 RES CHIP 10K 5 1 16W R172 1 216 833 11 RES CHIP 10K 5 1 16W R173 1 216 833 11...

Page 17: ... 11 CERAMIC CHIP 0 01uF 10 25V C74 1 163 021 11 CERAMIC CHIP 0 01uF 10 50V C75 1 164 004 11 CERAMIC CHIP 0 1uF 10 25V FILTER CF1 1 760 237 11 FILTER CERAMIC CF2 1 579 638 11 FILTER CERAMIC CF3 1 760 237 11 FILTER CERAMIC EXCEPT Panama CF4 1 760 237 11 FILTER CERAMIC Panama CF5 1 760 233 71 FILTER CERAMIC Panama TRIMMER CT1 1 141 298 11 CAP TRIMMER 10PF CT2 1 141 298 11 CAP TRIMMER 10PF DIODE D1 8 ...

Page 18: ... 817 11 METAL CHIP 470 5 1 16W R40 1 216 805 11 METAL CHIP 47 5 1 16W R41 1 216 809 11 METAL CHIP 100 5 1 16W R43 1 216 797 11 METAL CHIP 10 5 1 16W R44 1 216 097 00 RES CHIP 100K 5 1 10W R45 1 216 095 00 METAL CHIP 82K 5 1 10W R46 1 216 845 11 METAL CHIP 100K 5 1 16W R47 1 216 845 11 METAL CHIP 100K 5 1 16W VARIABLE RESISTOR RT1 1 238 663 11 RES ADJ CARBON 4 7K RV1 1 237 352 21 RES BAR CARBON 20K...

Page 19: ... 26 SRF M75PM Sony Corporation Personal Audio Company 9 927 110 11 99D0577 1 Printed in Japan 1999 4 Published by General Engineering Dept ...

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