Sony WM-GX670 WM-GX674 free download

File name WM-GX670 WM-GX674.pdf

WM-GX670/GX674 SERVICE MANUAL Ver 1.2 2002. 01 US Model AEP Model UK Model Australian Model WM-GX670 Chinese Model E Model WM-GX670/GX674 Photo: WM-GX670 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 WM-EX677 MT-WMGX670-162 SPECIFICATIONS Radio section Frequency range Dimensions (w/h/d) FM: 65 ­ 74/87.5 ­ 108MHz (Eastern Europe) 87.5 ­ 108MHz (other countries) AM: 530 ­ 1,710kHz (North, Central, and South America) 531 ­ 1,602kHz (other countries) Approx. 108.4 Ч 77.7 Ч 23.8 mm (43/8 Ч 31/8 Ч 15/16inches), incl. projecting parts and controls Approx. 250g (8.9oz) Approx. 315g (11.2oz) incl. rechargeable battery and a cassette Battery case (1) Stereo earphones with remote control (1) Battery charge (1) AC plug adaptor (1) (except for European, Australian, Saudi Arabian, Chinese, Hong Kong, U.S.A., Canadian, and Korean model) Rechargeable battery (NC-6WM, 1.2V, 600mAh, Ni-Cb) (1) Rechargeable battery carring case (1) Carrying pouch (1) Stereo microphone (1) Mass Supplied accessories Tape section Frequency response (Dolby NR off) Output Input General Power requirements Playback: 40 ­ 15,000Hz Recording/playback: 100 ­ 8,000Hz Headphones (2 REMOTE) jack Load impedance 8 ­ 300 Microphone (MIC) jack 1.5V Rechargeable battery One R6 (size AA) battery Design and specifications are subject to change without notice RADIO CASSETTE CORDER 9-926-924-12 2002A1600-1 © 2002.1 Sony Corporation Personal Audio Company Published by Sony Engineering Corporation TABLE OF CONTENTS 1. SERVICE NOTE ······························································· 3 2. GENERAL ·········································································· 5 3. DISASSEMBLY 3-1. Case Block Assembly ····················································· 6 3-2. Belt (F2) ·········································································· 7 3-3. Cassette Lid Assembly ···················································· 7 3-4. Reel Ornament Assembly ··············································· 8 3-5. Main Board ····································································· 8 3-6. Motor (F2) (M901) ························································· 9 3-7. Holder Assembly ····························································· 9 3-8. Pinch Lever (N)/(R) Assembly ····································· 10 3-9. Magnetic Head (HP901) ··············································· 10 4. MECHANICAL ADJUSTMENT ································ 11 5. ELECTRICAL ADJUSTMENT ·································· 11 6. DIAGRAMS 6-1. Block Diagram ······························································ 13 6-2. Printed Wiring Board ···················································· 16 6-3. Schematic Diagram (1/2) ·············································· 19 6-4. S