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SERVICE MANUAL
Ver 1.3 1999. 05
With SUPPLEMENT-1 (9-923-296-81)
With SUPPLEMENT-2 (9-923-296-82)
Radio Frequency
FM : 87.6 – 108 MHz (US, Chilean, Latin America, Central and
: 65.0 – 107.9MHz (East European Model)
: 87.6 – 107.9 MHz (Other Models)
AM : 530 – 1,710 kHz (US, Chilean, Latin America, Central and
: 531 – 1,602kHz (Other Models)
Power requirements
3V DC batteries R6 (size AA) × 2
External DC 3V power sources
Battery life
(Aprroximate hours)
Battery
Sony alkaline LR6 (SG)
Sony R6P (SR)
MICROFILM
SPECIFICATIONS
South America Models)
South America Models)
Playback
Radio
16 hrs
48 hrs
4.5 hrs
16 hrs
WM-FX141
Model Name Using Similar Mechanism
Tape Transport Mechanism Type
Dimensions
93.9 × 118.5 × 35.9 mm (w/h/d)
× 4
× 1
3
3
3
(3
/
/
/
in.) incl. projecting parts
4
4
16
Mass
205g (7.3 oz) incl.batteries
Supplied accessories
• Stereo headphones or earphones (1)
• Belt clip (1)
Design and specifications are subject to change without notice.
RADIO CASSETTE PLAYER
US Model
AEP Model
E Model
WM-FX101
MF-WMFX103-48
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Related Manuals for Sony WM-FX141
Summary of Contents for Sony WM-FX141
- Page 1 External DC 3V power sources Design and specifications are subject to change without notice. Battery life (Aprroximate hours) Battery Playback Radio Sony alkaline LR6 (SG) 16 hrs 48 hrs Sony R6P (SR) 4.5 hrs 16 hrs RADIO CASSETTE PLAYER MICROFILM...
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Page 2: Table Of Contents
TABLE OF CONTENTS 1. GENERAL ·········································································· 3 2. DISASSEMBLY 2-1. Cabinet (Rear) ································································· 4 2-2. Mechanism Deck and Main Board ································· 4 2-3. Main Board ····································································· 5 2-4. Cassette Lid ····································································· 5 2-5. Dial Pointer Setting ························································· 5 3. ADJUSTMENT 3-1. -
Page 3: General
SECTION 1 This section is extracted from instruction manual. GENERAL — 3 —... -
Page 4: Disassembly
SECTION 2 DISASSEMBLY Note : Disassemble the unit in the order as shown below. Cabinet (Rear) Mechanism deck and main board Main board Cassette lid Dial pointer setting Note : Follow the disassembly procedure in the numerical order given. 2-1. CABINET (REAR) Cassette lid Cabinet(rear) -
Page 5: Main Board
2-3. MAIN BOARD 1 head flexible board 3 MAIN board 2 claws 2-4. CASSETTE LID Release the catch Release the catch Front cabinet Cassette lid (Remove it in the direction of the arrow) 2-5. DIAL POINTER SETTING Align pointer with arrow marked side as shown in Fig.1 and then fit to groove in the order of... -
Page 6: Mechanical Adjustment
SECTION 3 ADJUSTMENTS 3-1. MECHANICAL ADJUSTMENTS 3-2. ELECTRICAL ADJUSTMENTS Precaution Precaution 1. Clean the following parts with a denatured-alcohol-moistend • Supplied voltage : 2.5V swab : • Switch and control position playback head pinch roller capstan rubber belts TAPE switch : NORM 2. - Page 7 • Repeat the procedures in each adjustment several times for the 0 dB = 1 µV TUNER SECTION maximum level meter indication. • The frequency coverage and tracking adjustments should be [AM] finally done by the trimmer capacitors. BAND: AM Signal generator AM IF ADJUSTMENT AM RF signal...
- Page 8 Adjustment Location : Main board antenna terminal FM Frequency coverage AM IF Adjustment AM Frequency Adjustment AM Frequency coverage coverage Adjustment Adjustment AM Tracking Adjustment FM Frequency AM Tracking coverage Adjustment Adjustment FM Tracking FM Tracking Adjustment Adjustment — 8 —...
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Page 9: Diagrams
WM-FX141 SECTION 4 DIAGRAM 4-1. BLOCK DIAGRAM S303(2/2) DX → LOCAL E,MX,EE,AEP MODEL FM/AM,RF/AF AMP DET OUT MPX IN FM RF IN TRACKING L OUT AM RF IN FM MIX FM IF IN IC301 HP901 AUDIO AMP R OUT MOTOR DRIVE... - Page 10 WM-FX141 4-2. SCHEMATIC DIAGRAM — MAIN SECTION — E,MX,EE,AEP MODEL L3,CT3 L4,CT4 FM FREQ. COVER AM FREQ. COVER AM FERRITE-ROD ANTENNA LOCAL S303(2/2) CV1-4 TUNING L1,CT1 L2,CT2 FM TRACKING TRACKING US,5E,6E,8E MODEL AEP,E,MX,EE MODEL 10.7 AM IF • Waveform ↑...
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Page 11: Schematic Diagram
WM-FX141 4-3. PRINTED WIRING BOARD — MAIN SECTION — • Semiconductor Location Note: Ref. No. Location • X : parts extracted from the component side. • Y : parts extracted from the conductor side. IC301 • ® : Through hole. - Page 16 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < JUMPER CAPACITOR > R601 1-217-905-11 RES, CHIP 1/10W (EE, E, MX, AEP) 1-216-295-91 SHORT 0 (EE, E, MX, AEP) R602 1-216-309-00 METAL CHIP 1/10W 1-216-295-91 SHORT 0 (EE, E, MX, AEP) (US, 5E, 6E, 8E) 1-216-295-91 SHORT...
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Page 17: Ic Block Diagram
WM-FX141 Sony Corporation 99D1644-1 Personal Audio Company 9-923-296-12 Printed in Japan © 1999.4 — 22 — Published by General Engineering Dept.