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Sony WM-FS555 Service Manual
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Sony WM-FS555 Service Manual

Sony WM-FS555 Service Manual

Radio cassette player
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3 7 63 1515 0
SERVICE MANUAL
Ver 1.1 2003.01
TE
L 13942296513
www
.
Sony Corporation
9-873-595-02
Personal Audio Company
2003A0200-1
Pubulished by Sony Engineering Corporation
© 2003.01
http://www.xiaoyu163.com
WM-FS555/FS556
• Frequency
TV: 2-13 ch
WEATHER: 1-7ch
FM: 87.5-108 MHz
AM: 530-1710 kHz (North, Central and South America)
531-1602 kHz (Other counries)
• Power requirements
1.5 V DC battery size AA (R6) × 1
• Dimensions
Approx. 102.3 × 117.5 × 47.3 mm (4
including projecting parts and controls
• Mass
Approx. 219 g (7.8 oz) (main unit only)
• Supplied accessories
Stereo headphones or earphones (1)
Hand strap with belt clip (1)
Design and specifications are subject to change witout notice.
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u163
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http://www.xiaoyu163.com
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Photo : WM-FS555
Model Name Using Similar Mechanism
MD Mechanism Type
SPECIFICATIONS
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1 3
1 5
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RADIO CASSETTE PLAYER
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US Model
WM-FS555/FS556
Canadian Model
AEP Model
E Model
NEW
MF-WMFS555-114
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8
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WM-FS555
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  • Page 1 • Supplied accessories Stereo headphones or earphones (1) Hand strap with belt clip (1) Design and specifications are subject to change witout notice. RADIO CASSETTE PLAYER u163 Sony Corporation 9-873-595-02 Personal Audio Company 2003A0200-1 Pubulished by Sony Engineering Corporation © 2003.01 http://www.xiaoyu163.com...

  • Page 2: Table Of Contents

    WM-FS555/FS556 3 7 63 1515 0 TABLE OF CONTENTS Flexible Circuit Board Repairing Specifications ................1 • Keep the temperature of the soldering iron around 270°C during 1. GENERAL repairing............... 2 • Do not touch the soldering iron on the same conductor of the circuit board (within 3 times).

  • Page 3: Disassembly

    WM-FS555/FS556 SECTION 2 3 7 63 1515 0 DISASSEMBLY The equipment can be removed using the following procedure. Chassis, H/P board Main board Mechanism deck Belt, Capstan/reel motor (M601), Magnetic head (playback) (HP901) Note : Follow the disassembly procedure in the numerical order given.

  • Page 4: Mechanism Deck

    WM-FS555/FS556 3 7 63 1515 0 2-3. MECHANISM DECK Chassis 1 Claws Mechanism deck L 13942296513 2-4. BELT, CAPSTAN/REEL MOTOR (M601), MAGNETIC HEAD (PLAYBACK) (HP901) 2 Two screws (M1.4) 4 Two screws (M1.4) 3 Capstan/reel motor Mechanism deck (M601) •...

  • Page 5: Adjustments

    WM-FS555/FS556 SECTION 3 ADJUSTMENTS 3 7 63 1515 0 3-1. MECHANICAL ADJUSTMENTS 3-2. ELECTRICAL ADJUSTMENTS PRECAUTION PRECAUTION 1. Clean the following parts with a denatured-alcohol-moistened • Supplied voltage : 1.5 V. swab : • Switch and control position (MENU display)
  • Page 6 WM-FS555/FS556 3 7 63 1515 0 TUNER SECTION 0 dB = 1µV AM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. AM Section 620kHz <621kHz> BAND : AM 1,400kHz <1,395kHz> AM RF signal Put the lead-wire generator antenna close to the set.
  • Page 7 WM-FS555/FS556 3 7 63 1515 0 Adjustment Location : [MAIN BOARD] (SIDE A) L2 : FM Tracking Adjustment L7 : TV Tracking Adjustment CT1 : AM Tracking Adjustment L 13942296513 L5 : AM Frequency Coverage Adjustment L4: AM Tracking Adjustment u163 http://www.xiaoyu163.com...

  • Page 8: Diagrams

    WM-FS555/FS556 SECTION 4 DIAGRAMS 3 7 63 1515 0 4-1. EXPLANATION OF IC TERMINALS IC701 TC9329FA-CFX1740 (SYSTEM CONTROL) Pin No. Pin name Description 1 – 4 COMI-4 LCD common drive. 5 – 19 S1-15 LCD segment drive. 20 – 22 K01-03 Key output.

  • Page 9: Block Diagrams

    WM-FS555/FS556 4-2. BLOCK DIAGRAMS 3 7 6 3 1 5 1 5 0 EXCEPT US MODEL POWER AMP PRE AMP HP901 IC301 (2/2) US MODEL IC301 (1/2) PLAY BACK RV301 HEAD VOLUME PRE AMP R-CH PRE OUTA J301 PW INA...

  • Page 10: Printed Wiring Boards - Main Section

    WM-FS555/FS556 3 7 6 3 1 5 1 5 0 4-3. PRINTED WIRING BOARDS – MAIN SECTION – Semiconductor M601 Location CAPSTAN/REEL MOTOR Ref. No. Location (SIDE A) MAIN BOARD (SIDE B) MAIN BOARD HOLD . D401 D402 D701...

  • Page 11: Schematic Diagram - Main Section (1/2)

    WM-FS555/FS556 3 7 6 3 1 5 1 5 0 4-4. SCHEMATIC DIAGRAM − MAIN SECTION (1/2) − Refer to page 13 for Notes. Refer to page 13 for Waveforms. Refer to page 13 for IC Block Diagrams. 1 3 9 4 2 2 9 6 5 1 3...

  • Page 12: Schematic Diagram - Main Section (2/2)

    WM-FS555/FS556 3 7 6 3 1 5 1 5 0 4-5. SCHEMATIC DIAGRAM − MAIN SECTION (2/2) − Refer to page 13 for Notes. Refer to page 14 for IC Block Diagrams. 1 3 9 4 2 2 9 6 5 1 3...

  • Page 13: Ic Block Diagrams

    WM-FS555/FS556 3 7 63 1515 0 Note on Schematic Diagram: MAIN SECTION Waveforms • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. • All resistors are in Ω and W or less unless otherwise specified.
  • Page 14 WM-FS555/FS556 3 7 63 1515 0 IC301 TA2160FN (EL) RF & REF PW C AGC DET PW A PW B PRE A PRE B BST SW IC601 MM1279XVBE L 13942296513 MOTIVE CONTROL DRIVER CIRCUIT MOTIVE SOFT MOTIVE LOGIC SWITCH...

  • Page 15: Exploded Views

    WM-FS555/FS556 SECTION 5 EXPLODED VIEWS 3 7 63 1515 0 NOTE : • Hardware (# mark) list and accessories and packing • -XX, -X mean standardized parts, so they materials are given in the last of this parts list.

  • Page 16: Cabinet Section

    WM-FS555/FS556 3 7 63 1515 0 5-2. CABINET SECTION MF-WMFS555-114 L 13942296513 LCD701 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-386-371-21 PACKING, HP JACK 3-227-297-01 BUTTON (PLAY) 3-221-321-11 KNOB (VOL) 3-227-300-01 BUTTON (REW) 3-012-927-01 RING, O...

  • Page 17: (Mf-Wmfs555-114)

    WM-FS555/FS556 Ver 1.1 2003.01 3 7 63 1515 0 5-3. MECHANISM SECTION (MF-WMFS555-114) supplied supplied supplied supplied L 13942296513 supplied HP901 M601 supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-3369-749-8 PINCH LEVER (N) ASSY...

  • Page 18: Electrical Parts List

    WM-FS555/FS556 SECTION 6 MAIN ELECTRICAL PARTS LIST 3 7 63 1515 0 NOTE : • Due to standardization, replacements in the • Items marked “ * ”are not stocked since they When indicating parts by reference num- parts list may be different from the parts are seldom required for routine service.
  • Page 19 WM-FS555/FS556 MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C312 1-135-149-21 TANTALUM CHIP 2.2uF D402 8-719-404-50 DIODE MA111-TX D701 8-719-049-09 DIODE 1SS367-T3SONY C316 1-115-156-11 CERAMIC CHIP C322 1-115-416-11 CERAMIC CHIP 0.001uF...
  • Page 20 WM-FS555/FS556 MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark <RESISTOR> R301 1-216-845-11 METAL CHIP 100K 1/16W R302 1-216-845-11 METAL CHIP 100K 1/16W 1-216-821-11 METAL CHIP 1/16W R303 1-216-845-11 METAL CHIP...
  • Page 21 WM-FS555/FS556 MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark S707 1-771-053-12 SWITCH, KEY BOARD (SET) S708 1-771-053-12 SWITCH, KEY BOARD (TUNING+) S711 1-771-053-12 SWITCH, KEY BOARD (MENU) <TRANSFORMER> T401 1-437-569-11 TRANSFORMER, DC-DC CONVERTER <THERMISTOR> TH601 1-810-794-11 THERMISTOR, POSITIVE) <VIBLATOR>...
  • Page 22 WM-FS555/FS556 3 7 63 1515 0 REVISION HISTORY 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.

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