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Sony Walkman WM-FX491, Service Manual

The Sony Walkman WM-FX491 comes with a handy user manual filled with detailed "Operating Instructions" on how to get the most out of your portable music player. Easily "download" the "manual" for "free" from manualshive.com and navigate effortlessly through the product features and settings.

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R11

1-216-296-91 SHORT

0

R12

1-216-833-91 RES-CHIP

10K

5%

1/16W

R13

1-216-821-11 METAL CHIP

1K

5%

1/16W

R14

1-216-845-11 METAL CHIP

100K

5%

1/16W

(EXCEPT US,CND,5E,6E)

R15

1-216-827-11 METAL CHIP

3.3K

5%

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1-216-821-11 METAL CHIP

1K

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R17

1-216-839-11 METAL CHIP

33K

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1-216-839-11 METAL CHIP

33K

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1/16W

R19

1-216-815-11 METAL CHIP

330

5%

1/16W

R20

1-216-821-11 METAL CHIP

1K

5%

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(US,CND,5E,6E)

R21

1-216-864-11 METAL CHIP

0

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R22

1-216-864-11 METAL CHIP

0

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R52

1-216-819-11 METAL CHIP

680

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R53

1-216-829-11 METAL CHIP

4.7K

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1-216-847-11 METAL CHIP

150K

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1-216-833-91 RES-CHIP

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1-216-864-11 METAL CHIP

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(EXCEPT E,EA,9E,CH)

R107

1-216-791-11 METAL CHIP

3.3

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(US,CND)

R107

1-216-797-11 METAL CHIP

10

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R107

1-216-811-11 METAL CHIP

150

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R108

1-216-817-11 METAL CHIP

470

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R109

1-216-825-11 METAL CHIP

2.2K

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R207

1-216-791-11 METAL CHIP

3.3

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(US,CND)

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R207

1-216-811-11 METAL CHIP

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R208

1-216-811-11 METAL CHIP

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R208

1-216-817-11 METAL CHIP

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1-216-825-11 METAL CHIP

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1-216-821-11 METAL CHIP

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1-216-827-11 METAL CHIP

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1-216-833-91 RES-CHIP

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1-216-821-11 METAL CHIP

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1-216-864-11 METAL CHIP

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1-216-841-11 METAL CHIP

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1-216-817-11 METAL CHIP

470

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1-216-817-11 METAL CHIP

470

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1-216-829-11 METAL CHIP

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1-216-835-11 METAL CHIP

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1-216-841-11 METAL CHIP

47K

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1-216-805-11 METAL CHIP

47

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1-216-835-11 METAL CHIP

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1-216-837-11 METAL CHIP

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1-216-825-11 METAL CHIP

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1-216-864-11 METAL CHIP

0

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1-216-845-11 METAL CHIP

100K

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1-216-821-11 METAL CHIP

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1-216-853-11 METAL CHIP

470K

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1-216-851-11 METAL CHIP

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1-216-853-11 METAL CHIP

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1-216-853-11 METAL CHIP

470K

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1-216-845-11 METAL CHIP

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1-216-833-91 RES-CHIP

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1-218-871-11 METAL CHIP

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< VARIABLE RESISTOR >

RV301

1-225-362-11 RES, VAR, CARBON (

w

 VOL)

RV601

1-241-784-11 RES, ADJ, CARBON 5K (TAPE SPEED)

< SWITCH >

S301

1-771-040-21 SWITCH, PUSH (OPEN DET)

S601

1-771-598-11 SWITCH, SLIDE (RVS/REW/FF/FWD)

S701

1-572-922-11 SWITCH, SLIDE (HOLD 

.

)

< TRANSFORMER >

T1

1-416-594-11 TRANSFORMER, IF (AM IF)

T401

1-449-021-21 TRANSFORMER, DC/DC CONVERTER

< THERMISTOR >

TH601

1-810-794-11 THERMISTOR, POSITIVE

< VIBRATOR >

X1

1-781-367-21 FILTER, CERAMIC(DISCRIMINATOR)

X701

1-577-262-11 VIBRATOR, CRYSTAL (75kHz)

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

MISCELLANEOUS

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

HP901

1-500-555-11 HEAD, MAGNETIC (PLAYBACK)

L2

1-501-987-21 AM FERRITE-ROD ANTENNA (AM TRACKING)

M901

1-763-073-11 MOTOR, DC (CAPSTAN/REEL)

(INCLUDING PULLEY)

ND701

1-803-764-11 DISPLAY PANEL, LIQUID CRYSTAL

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

MAIN

Ref. No.

Part No.

Description

Remark

Ref. No.

Part No.

Description

Remark

Summary of Contents for Walkman WM-FX491

Page 1: ...e AA x 2 Dimensions w h d Approx 115 8 x 83 2 x 30 1 mm incl projecting parts and controls Mass Approx 115 g Approx 195 g incl a battery and a cassette Supplied accessories Stereo headphones or earphones with remote control 1 FX493 FX493ST Stereo headphones or earphones 1 FX491 FX491ST Design and specifications are subject to change without notice Abbreviation 5E 6E South America Battery life appr...

Page 2: ... 4 4 Schematic Diagram 19 5 EXPLODED VIEWS 5 1 Cabinet Section 23 5 2 Mechanism Deck Section MT WMEX404 147 24 6 ELECTRICAL PARTS LIST 25 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 to apply force on the conductor when soldering or u...

Page 3: ...LDB TUNING BAND RADIO ON PRESET REW x Y FF PRESET RADIO OFF MB MODE TAPE AVLS FM MODE B FWD REV OPEN MENU SET ENTER Plug in firmly Branchez fermement FX493 FX491 VOL FF PRESET TUNING x RADIOOFF REW PRESET RADIO ON BAND VOL Y Y x RADIO ON BAND OFF HOLD FF PRESET C FX493 FX491 MENU MENU SET SET FX493 REW PRESET ...

Page 4: ...n the display Playing a Tape B 1 If the HOLD function is turned on slide the HOLD switch in the opposite direction of the arrow to unlock the controls 2 Insert a cassette and press MENU repeatedly to set the cursor to TAPE in the display Then press SET to select the tape type No message normal TYPE I METAL CrO2 TYPE II or metal TYPE IV 3 Press Y on the main unit or if using the remote control FX49...

Page 5: ...ing the following procedure Main board Cabinet Front sub ASSY Holder sub ASSY Cassette Mechanism deck Belt Motor Capstan reel M901 Set Cabinet Front sub ASSY 4 Screws B1 7x12 Lid Battery case Center cabinet 2 OPEN 6 Claws 3 7 1 6 Claws 5 Claws 6 Claws Main board 3 Screw Black Orange White Red Switch S601 Head flexible board 5 2 1 Remove solder Center cabinet 4 Claws ...

Page 6: ... 6 2 3 MECHANISM DECK 2 4 BELT MOTOR CAPSTAN REEL M901 Mechanism deck Center cabinet 2 1 Claws 1 belt 3 Motor Capstan reel M901 wheel assy SP capstan belt How to apply the belt M901 2 Screws M1 4 ...

Page 7: ...projection 3 Move hinge away from projection Holder sub ASSY Cassette Center cabinet 5 Spring Lid up Hinge 4 1 3 2 Hinge 1 Insert the spring Lid up to the slot as shown in the figure 2 3 Insert the hinge of the Holder sub ASSY Cassette 4 Close the Holder sub ASSY Cassette then press it 2 5 HOLDER SUB ASSY CASSETTE z CAUTIONS DURING ASSEMBLY ...

Page 8: ...inch REV less than 2 g cm back tension less than 0 027 oz inch FF REW CQ 201B more than 60 g cm more than 0 84 oz inch SECTION 3 ADJUSTMENTS 3 2 ELECTRICAL ADJUSTMENTS PRECAUTION Supplied voltage 2 5V Switch and control position MEGA BASS OFF VOLUME control maximum AVLS NORM TAPE SECTION Test Tape Type Signal Used for WS 48A 3kHz 0dB Tape Speed Adjustment Tape Speed Adjustment Procedure 1 Playback...

Page 9: ...JUSTMENT Adjust for a maximum reading on level meter L1 87 5MHz 87 35MHz Confirmation 108MHz 108 25MHz Abbreviation 5E 6E South America Adjustment Location Main board See page 10 0 dB 1µV Repeat the procedures in each adjustment several times and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors AM RF signal generator 30 amplitude modulation by 400Hz ...

Page 10: ...730 TP759 TP770 TP781 VT TP21 TP736 TP739 TP740 TP2 C7 Q603 C9 C30 C35 C25 L70 C38 D3 D2 R708 C14 TP708 R723 R702 R703 TP745 FB2 C41 TP735 JC109 JC11 R722 TP731 TP734 TP725 TP764 GND TP809 L4 L3 CF 6E TP844 TP204 S705 SET Y TP781 VT TP809 GND MAIN BOARD Side B digital voltmeter DC range MAIN BOARD SIDE A L4 AM Frequency Coverage Adjustment L3 FM Frequency Coverage Adjustment T1 AM IF Adjustment L1...

Page 11: ... output for EEPROM 47 DATA O Data output for EEPROM 48 SCLK O SCLK output for EEPROM 49 BEEP O BEEP output 50 TEST I Test mode select terminal Connect to remote contorol 51 MEGA BASS O MEGA BASS control output ON L OFF H 52 MUTE O Mute signal output OFF L ON H 53 AMP CTL O Power AMP ON OFF control output 54 OPEN I OPEN switch input 55 REV SW I Mechanism deck mode detection switch input REV ON H 56...

Page 12: ...4 C407 TP231 Q305 Q51 Q752 Q703 Q701 TP845 TP841 Q53 C2 D1 C19 Q401 C15 JC101 L401 C37 C716 R209 R109 Q751 IC702 1 2 3 C718 R757 R758 R755 R756 C311 L702 R753 C40 C8 JC102 JC108 C402 JC103 C313 C719 C720 C721 C722 C723 C724 C725 D301 JC111 TP808 C709 R759 TP854 FWD FF S601 REV REW FF FWD R22 R609 C17 S715 RADIO ON BAND R21 C32 C22 C29 R3 R4 R6 R8 C33 R19 R10 R5 IC1 1 5 10 12 13 15 20 24 X1 R12 C24...

Page 13: ...SECTION 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 tolerances Circled numbers refer to waveforms Signal path F FM f AM E PB Abbreviation CND Canadian FR French EA Saudi Arabia CH Chinese E Indication of country of origin 9...

Page 14: ...PEN 12 3 019 422 01 JOINT 13 3 349 825 31 SCREW 14 3 318 382 61 SCREW 1 7X2 5 TAPPING 15 3 039 661 01 LOCKER OPEN 16 3 025 276 01 SPRING LID UP 17 X 3378 289 1 HOLDER SUB ASSY CASSETTE FX491 CND 5E 6E FX491ST 17 X 3378 290 1 HOLDER SUB ASSY CASSETTE FX491 AEP CEV FR E 9E CH 17 X 3378 291 1 HOLDER SUB ASSY CASSETTE FX493 US 5E 6E FX493ST 17 X 3378 292 1 HOLDER SUB ASSY CASSETTE FX493 AEP CEV FR 9E ...

Page 15: ...IC CHIP 1uF 10 10V C20 1 164 156 11 CERAMIC CHIP 0 1uF 25V C21 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V EXCEPT US CND 5E 6E C21 1 164 245 11 CERAMIC CHIP 0 015uF 10 25V US CND 5E 6E C22 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V EXCEPT US CND 5E 6E C22 1 164 245 11 CERAMIC CHIP 0 015uF 10 25V US CND 5E 6E C23 1 125 837 91 CERAMIC CHIP 1uF 10 6 3V C24 1 125 837 91 CERAMIC CHIP 1uF 10 6 3V C25 1 109 935...

Page 16: ... 296 00 METAL CHIP 0 5 1 8W JC108 1 216 864 11 METAL CHIP 0 5 1 16W JC109 1 216 295 00 METAL CHIP 0 5 1 10W JC110 1 216 295 00 METAL CHIP 0 5 1 10W JC111 1 216 296 00 METAL CHIP 0 5 1 8W COIL L1 1 416 596 11 COIL RF FM TRACKING L2 1 501 987 21 AM FERRITE ROD ANTENNA AM TRACKING L3 1 416 595 11 COIL OSC FM FREQUENCY COVERAGE L4 1 415 962 11 COIL OSC AM FREQUENCY COVERAGE L401 1 412 991 11 INDUCTOR ...

Page 17: ...0 5 1 16W R614 1 216 817 11 METAL CHIP 470 5 1 16W R615 1 216 817 11 METAL CHIP 470 5 1 16W R700 1 216 829 11 METAL CHIP 4 7K 5 1 16W R701 1 216 835 11 METAL CHIP 15K 5 1 16W R702 1 216 841 11 METAL CHIP 47K 5 1 16W R703 1 216 805 11 METAL CHIP 47 5 1 16W R704 1 216 835 11 METAL CHIP 15K 5 1 16W R705 1 216 837 11 METAL CHIP 22K 5 1 16W R706 1 216 825 11 METAL CHIP 2 2K 5 1 16W R707 1 216 864 11 ME...

Page 18: ...N FX491 CEV FX493 CEV ENGLISH HUNGARIAN CZECH RUSSIAN 3 867 999 41 MANUAL INSTRUCTION FX491 CEV FX493 CEV POLISH GREEK TURKISH SLOVAKIAN 3 867 999 51 MANUAL INSTRUCTION FX491 5E 6E FX493 US 5E 6E FX493ST US ENGLISH SPANISH PORTUGUESE 3 867 999 61 MANUAL INSTRUCTION FX491 CND FX491ST FX493 EA FX493ST CND ENGLISH FRENCH ARABIC 3 867 999 71 MANUAL INSTRUCTION FX491 E ENGLISH TRADITIONAL CHINESE KOREA...

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