Sony WM-EX20 free download

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WM-EX20 SERVICE MANUAL Ver 1.0 1999. 08 US Model Canadian Model AEP Model UK Model E Model Australian Model Tourist Model Manufactured under license from Dolby Laboratories Licensing Corporation. "DOLBY" and the double-D symbol a are trademarks of Dolby Laboratories Licensing Corporation. Model Name Using Similar Mechanism Tape Transport Mechanism Type NEW MT-WMEX20-162 SPECIFICATIONS Tape section Frequency response (Dolby NR off) Output Supplied accessories Playback: 30 ­ 18,000 Hz Headphones (REMOTE 2 jack) Load impedance 8 ­ 300 Battery case (1) Stereo earphones with remote control (1) Battery charger (1) US, CND model : BC-7DC AEP, FR model : BC-7DY E, JE model : BC-7HT UK model : BC-7S AUS model : BC-7SG KR model : BC-9HR Rechargeable battery (1) US, CND, AEP, UK, FR, AUS model : NC-6WM, 1.2V, 600mAh, Ni-Cd KR, E, JE model: NH-14WM, 1.2V, 1400mAh, Ni-MH Rechargeable battery carrying case (1) Carrying pouch (1) E, JE, model: AC plug adaptor (1) General Power requirements Dimensions (w/h/d) Mass 1.5 V One rechargeable battery or one R6 (size AA) battery Approx. 78.7 Ч 108.6 Ч 18.7 mm (31/8 Ч 43/8 Ч 3/4 inches), incl. projecting parts and controls Approx. 180 g (6.4 oz) Approx. 240 g (8.5 oz) (incl. rechargeable battery and a cassette) Design and specifications are subject to change without notice · Abbreviation CND : Canadian model FR : French model AUS : Australian model KR : Korea model JE : Tourist model CASSETTE PLAYER MICROFILM SECTION 1 GENERAL TABLE OF CONTENTS 1. GENERAL ·········································································· 2 2. SERVICE NOTE ······························································· 3 3. DISASSEMBLY 3-1. Lid Assy, Cassette ··························································· 5 3-2. Case ················································································· 5 3-3. Ornament (Open) Block Assy ········································· 6 3-4. "Sub Board", "Switch, Leaf", "Main Board" ················· 6 3-5. Belt (F KAI), Motor (M601) ··········································· 7 3-6. Holder Assy ····································································· 7 3-7. Pinch Lever (N)/(R) Assy ··············································· 8 3-8. Magnetic Head (HP701) ················································· 8 This section is extracted from instruction manual. 4. MECHANICAL ADJUSTMENT ·································· 9 5. ELECTRICAL ADJUSTMENT ···································· 9 6. DIAGRAMS 6-1. Block Diagram ······························································ 10 6-2. Printed Wiring Board ···················································· 12 6-3. Schematic Diagram (1/2) ·············································· 15 6-4. Schematic Diagra (2/2) ················································· 18 6-5. IC Block Diagrams ······················································· 21 6-6. IC Pin Function Discription ·························