Sony MDX-C7900-C7900R free download

File name sony_MDX-C7900R_service_manual-1.pdf

MDX-C7900/C7900R SERVICE MANUAL Ver 1.1 2001.08 US Model Canadian Model E Model MDX-C7900 AEP Model UK Model MDX-C7900R Refer to RM-X4S Service Manual (9-925698-[][]) issued previously for information of remote commander (RM-X4S) supplied with this set. Photo: MDX-C7900 Model Name Using Similar Mechanism Base Mechanism Type Optical Pick-Up Name NEW MG-164KT-138 KMS-241A/J2N SPECIFICATIONS ­ Continued on next page ­ MDX-C7900 FM/AM MINIDISC PLAYER MDX-C7900R FM/MW/LW MINIDISC PLAYER 9-925-787-12 2001H0500-1 C 2001.8 Sony Corporation e Vehicle Company Shinagawa Tec Service Manual Production Group Ver 1.1 TABLE OF CONTENTS 1. 2. SERVICE NOTE ... 3 GENERAL Location of Controls (MDX-C7900) ... 4 Location of Controls (MDX-C7900R) ... 5 Resetting the Unit ... 6 Detaching the Front Panel ... 6 Preparing the Rotary Commander ... 6 Setting the Clock ... 6 Installation (US, Canadian) ... 7 Installation (AEP, UK, E) ... 8 Connections ... 10 3. 4. DISASSEMBLY ... 13 ELECTRICAL ADJUSTMENTS Test Mode ... 18 MD Section ... 18 Tuner Section ... 18 5. DIAGRAMS 5-1. Block Diagram ­ SERVO Section ­ ... 21 5-2. Block Diagram ­ MAIN Section ­ ... 23 5-3. Block Diagram ­ DISPLAY/KEY CONTROL Section ­ ... 25 5-4. Block Diagram ­ BUS CONTROL/POWER SUPPLY Section ­ ... 27 5-5. Printed Wiring Boards ­ MECHANISM DECK Section ­ ... 29 5-6. Schematic Diagram ­ MECHANISM DECK Section ­ ... 31 5-7. Schematic Diagram ­ MAIN Section ­ ... 35 5-8. Printed Wiring Board ­ MAIN Section ­ ... 39 5-9. Printed Wiring Board ­ PANEL Section ­ ... 43 5-10. Schematic Diagram ­ PANEL Section ­ ... 45 5-11. IC Pin Function Description ... 55 6. 7. EXPLODED VIEWS ... 64 ELECTRICAL PARTS LIST ... 68 ­2­ SECTION 1 SERVICE NOTE · Type A/B Discrimination [MAIN BOARD] (Component Side) Flexible Circuit Board Repairing · Keep the temperature of the soldering iron around 270 °C during repairing. · Do not touch the soldering iron on the same conductor of the cir