Sony WM-GX780 WM-GX788 free download

File name WM-GX780 WM-GX788.pdf

WM-GX780/GX788 SERVICE MANUAL Ver. 1.2 2006.04 US Model AEP Model WM-GX788 E Model Chinese Model WM-GX780/GX788 Tourist Model WM-GX788 Photo: WM-GX788 Model Name Using Similar Mechanism Tape Transport Mechanism Type NEW MF-WMGX788-162 SPECIFICATIONS Radio section Frequency range FM: 87.5 - 108 MHz 530 - 1 710 kHz (North, Central, AM: and South America) 531 - 1 602 kHz (other countries/regions) Supplied accessories AC power adaptor (1) Battery case (1) Stereo headphones or earphones with remote control (1) Charging stand (1) AC plug adaptor (1) (Saudi Arabian model only) Rechargeable battery (NH-14WM(A), 1.2 V, 1 350 mAh (min), Ni-MH) (1) Rechargeable battery carrying case (1) Carrying pouch (1) Stereo microphone (1) Design and specifications are subject to change without notice. Tape section Frequency response Playback: 40 - 15 000 Hz Recording/playback: 100 - 8 000 Hz Output Headphones (i) jack Load impedance 8 - 300 Input Microphone (MIC) jack General Power requirements 1.5 V Rechargeable battery One R6 (size AA) battery Dimensions (w/h/d) Approx. 77.1 Ч 108.0 Ч 22.5 mm (31/8 Ч 43/8 Ч 29/32 inches) excl. projecting parts and controls Mass Approx. 152 g (5.4 oz) (main unit only) RADIO CASSETTE-CORDER 9-877-201-03 2006D16-1 © 2006.04 Sony Corporation Personal Audio Division Published by Sony Techno Create Corporation WM-GX780/GX788 TABLE OF CONTENTS 1. SERVICE NOTE ······························································· 3 2. GENERAL ·········································································· 5 3. DISASSEMBLY 3-1. Case Block Assy ····························································· 6 3-2. Button Rec, Button Assy ················································· 7 3-3. Cassette Lid Assy ···························································· 7 3-4. Ornament Block Assy Reel, Flexible Retainer ··············· 8 3-5. MAIN Board, Belt (F0) ·················································· 8 3-6. Motor (M901) ································································· 9 3-7. Bracket (cassette) Assy, Holder (FA) Assy ····················· 9 3-8. Pinch Lever (RA) Assy, Pinch Lever (NA) Assy ·········· 10 3-9. Magnetic Head (HP901) ··············································· 10 4. MECHANICAL ADJUSTMENT ································ 11 5. ELECTRICAL ADJUSTMENT ·································· 11 6. DIAGRAMS ······································································ 12 6-1. Block Diagram ······························································ 13 6-2. Printed Wiring Board (Side A) ······································ 14 6-3. Printed Wiring Board (Side B) ······································ 15 6-4. Schematic Diagram (1/2) ·············································· 16 6-5. Schematic Diagram (2/2) ·············································· 17 6-6. IC Block Diagrams ······················································· 18 6-7. IC Pin Function Discription ·········