Sony WM-FS220 Service Manual
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Sony WM-FS220 Service Manual

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3 7 63 1515 0
SERVICE MANUAL
Ver 1.0 2000. 02
TE
L 13942296513
www
.
http://www.xiaoyu163.com
Radio Frequency
Power Requirements
Dimensions (w/h/d)
Mass
Supplied Accessories
Design and specifications are subject to change without notice.
x
ao
u163
y
i
http://www.xiaoyu163.com
WM-FS220
2 9
8
Model Name Using Similar Mechanism
Tape Transport Mechanism Type
SPECIFICATIONS
FM : 87.5 – 108 MHz
Q Q
AM : 531 – 1,602 kHz
3
6 7
1 3
1 5
3 V DC Batteries R6 (AA) × 2
Approx. 108.4 × 125.7 × 47.2 mm
× 5 × 1
3
7
(4
/
/
inches) incl.
8
8
projecting parts and controls
Approx. 280 g (9.9 oz)/Approx. 355 g (12.6 oz)
(incl. batteries and a cassette)
• Stereo headphones or earphones (1)
• Belt clip (1)
RADIO CASSETTE PLAYER
co
.
9 4
2 8
Canadian Model
NEW
MF-WMFS220-114
0 5
8
2 9
9 4
2 8
m
9 9
9 9

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  • Page 1 WM-FS220 3 7 63 1515 0 SERVICE MANUAL Canadian Model Ver 1.0 2000. 02 Model Name Using Similar Mechanism Tape Transport Mechanism Type MF-WMFS220-114 SPECIFICATIONS Radio Frequency FM : 87.5 – 108 MHz AM : 531 – 1,602 kHz L 13942296513 3 V DC Batteries R6 (AA) ×...

  • Page 2: Table Of Contents

    http://www.xiaoyu163.com 3 7 63 1515 0 TABLE OF CONTENTS 1. GENERAL 7. MEXPLODED VIEWS ·········································································· 2 7-1. Cabinet Assy Section ··················································· 18 2. SERVICE NOTE 7-2. Main Board Section ····················································· 19 ······························································· 3 7-3. Mechanism Deck Section-1 (MF-WMFS220-114) ·················································· 20 3.

  • Page 3: Service Note

    Note : In case the parts in the figure are removed for repair, treat them to protect from water drop following the instructions in the figure (spread grease, bond etc.) • Sony grease SGL-601 : 7-651-000-10 Tapping screw (B)(1.4 × 4) Tapping screw (B)(1.4 ×...

  • Page 4: Disassembly

    http://www.xiaoyu163.com SECTION 3 DISASSEMBLY 3 7 63 1515 0 Note : Disassemble the unit in the order as shown below. Chassis Sub Assy Main Board and Mechanism Deck Belt Main Assembly Head, Magnetic (HP901) Note : Follow the disassembly procedure in the numerical order given. 3-1.

  • Page 5: Chassis Sub Assy

    http://www.xiaoyu163.com 3 7 63 1515 0 3-2. CHASSIS SUB ASSY Main board 2 Knob (DX-Local) 1 Two claws 3 Chassis sub assy L 13942296513 3-3. MAIN BOARD AND MECHANISM DECK 4 Main board 3 Screw (M1.4 ) Toothed Lock 2 Remove the solder 1 Remove the solder (fouf points) 5 Stopper (MD) 6 Mechanism deck...

  • Page 6: Belt

    http://www.xiaoyu163.com 3 7 63 1515 0 3-4. BELT Belt Belt threading Capstan wheel assy(SP) Reel/Capstan motor Belt 3-5. HEAD, MAGNETIC (HP901) L 13942296513 1 Two screws (M1.4) 2 Head, magnetic (HP901) u163 — 6 — http://www.xiaoyu163.com...

  • Page 7: Mechanical Adjustment

    http://www.xiaoyu163.com SECTION 4 SECTION 5 MECHANICAL ADJUSTMENT ELECTRICAL ADJUSTMENT 3 7 63 1515 0 PRECAUTION 0 dB = 0.775 V TAPE SECTION Clean the following parts with a denatured-alcohol-moistened swab: playback head pinch roller Test Tape rubber belts capstan Tape Signal Used for Do not use a magnetized screwdriver for the adjustments.
  • Page 8 http://www.xiaoyu163.com 3 7 63 1515 0 • Repeat the procedures in each adjustment several times for the 0 dB = 1 µV TUNER SECTION maximum level meter indication. • Switch Location • The frequency coverage and tracking adjustments should be finally done by the trimmer capacitors.
  • Page 9 http://www.xiaoyu163.com 3 7 63 1515 0 [MAIN BOARD] — Component side — FM Tracking Adjustment AM Tracking Adjustment AM Frequency Coverage Adjustment FM Frequency AM IF Coverage Adjustment Adjustment L 13942296513 — Conductor side — TP22 FM IN TP30 u163 —...

  • Page 10: Diagrams

    http://www.xiaoyu163.com SECTION 6 DIAGRAMS 3 7 63 1515 0 6-1. IC BLOCK DIAGRAMS TA2111F-(EL) DET OUT MPX IN AM RF IN FM RF OUT RF VCC FM OSC AM OSC LPF2 LPF1 L-OUT R-OUT DECODE BUFF DIVIDE MUTE ST/MO FM/AM LEVEL FM RF IN RF GND...

  • Page 11: Block Diagram

    WM-FS220 6-2. BLOCK DIAGRAM 3 7 6 3 1 5 1 5 0 TUNER +B FM/AM RF,IF AMP DET,MPX PRE POWER AMP LOCAL 10.7MHz IC301 RV301 QUAD STEREO MONO VOLUME J301 B.P.F FM RF IN DET OUT MPX IN...

  • Page 12: Schematic Diagram

    WM-FS220 • Refer to page 10 for IC Block Diagrams. 6-3. SCHEMATIC DIAGRAM 3 7 6 3 1 5 1 5 0 • Refer to page 17 for IC Pin Function. 2.1Vp-p 13.3µsec 500mV/div µ sec/div 100P AM IF +1.5V REG.

  • Page 13: Printed Wiring Board

    WM-FS220 6-4. PRINTED WIRING BOARD • Semiconductor 3 7 6 3 1 5 1 5 0 Location Ref. No. Location D701 D705 D706 IC301 IC701 IC702 Q101 CN301 Q102 Q201 Q202 Q301 Q304 Q501 Q502 Q503 S303 1 3 9 4 2 2 9 6 5 1 3...

  • Page 14: Ic Pin Function Description

    http://www.xiaoyu163.com SECTION 7 EXPLODED VIEWS 3 7 6 3 1 5 1 5 0 NOTE: 6-5. IC PIN FUNCTION DESCRIPTION • -XX, -X mean standardized parts, so they may • The mechanical parts with no reference number • MAIN BOARD IC701 (DTC) LC72348W-9906 have some differences from the original one.

  • Page 15: Main Board Section

    http://www.xiaoyu163.com 3 7 63 1515 0 7-2. MAIN BOARD SECTION MF-WMFS220-114 L 13942296513 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 3-934-020-41 LID,BATTERY CASE 3-042-868-01 BUTTON (STOP) 3-028-087-01 SPRING, TORSION 3-042-892-01 STOPPER (MD) 3-318-203-82 SCREW (B1.7X7), TAPPING 3-015-285-01 SCREW (M1.4),TOOTHED LOCK 3-934-005-01 KNOB(DX-LOCAL) A-3021-319-A MAIN BOARD, COMPLETE...

  • Page 16: Mechanism Deck Section-2

    http://www.xiaoyu163.com 3 7 63 1515 0 7-3. MECHANISM DECK SECTION-1 (MF-WMFS220-114) HP901 M601 L 13942296513 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 3-938-657-01 BELT 3-704-197-71 SCREW (M1.4) 3-920-997-01 SPRING (PINCH R) X-3369-749-1 PINCH LEVER (N) ASSY X-3369-748-1 PINCH LEVER (R) ASSY 3-920-996-01 SPRING (PINCH N) 3-703-816-31 SCREW (M1.4), SPECIAL HEAD...
  • Page 17 http://www.xiaoyu163.com 3 7 63 1515 0 7-4. MECHANISM DECK SECTION-2 (MF-WMFS220-114) L 13942296513 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 3-921-797-01 WASHER 3-022-094-01 SPRING (STOP-S) 3-938-628-01 SPRING (PLAY-CP) 3-728-091-01 WASHER, STOPPER 3-019-773-01 GEAR (AS) 3-019-778-01 SLEEVE (MS) 3-021-786-01 LEVER (FS), D SELECTION 3-921-335-01 WASHER, LEVER 3-929-419-01 LEVER (BR), DETECTION...

  • Page 18: Electrical Parts List

    http://www.xiaoyu163.com SECTION 8 MAIN ELECTRICAL PARTS LIST 3 7 63 1515 0 NOTE: • Due to standardization, replacements in the • RESISTORS • SEMICONDUCTORS parts list may be different from the parts All resistors are in ohms. In each case, u: µ, for example: specified in the diagrams or the components METAL: metal-film resistor uA...: µA...
  • Page 19 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C708 1-162-927-11 CERAMIC CHIP 100PF L702 1-412-033-11 INDUCTOR CHIP 220uH C709 1-124-433-00 ELECT 100uF 20.00% 4V C710 1-107-826-11 CERAMIC CHIP 0.1uF 10.00% 16V <...
  • Page 20 WM-FS220 MAIN HEADPHONE 3 7 63 1515 0 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R208 1-216-795-11 RES-CHIP 1/16W < VIBRATOR > R209 1-216-829-11 METAL CHIP 4.7K 1/16W R301 1-216-789-11 METAL CHIP 1/16W 1-781-137-11 FILTER ASSY, CERAMIC...

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