Sony ta s 3 service manual

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sony ta s 3 service manual

Extracted text from sony ta s 3 service manual (Ocr-read)


Page 1

2 TA - S 3 SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY. TABLE OF CONTENTS 1. SERVICING NOTES ............................................... 3 2. GENERAL ................................................................... 4 3. DISASSEMBLY 3-1. Disassembly Flow ........................................................... 5 3-2. Cover ............................................................................... 6 3-3. Front Panel Section ......................................................... 6 3-4. Back Panel (2CH/VCD) Section .................................... 7 3-5. FRONT AMP Board ....................................................... 7 4. TEST MODE .............................................................. 8 5. DIAGRAMS 5-1. Note for Printed Wiring Boards and Schematic Diagrams ................................................ 10 5-2. Printed Wiring Boards – FRONT AMP Section – ........ 11 5-3. Schematic Diagram – FRONT AMP Section (1/2) – .... 12 5-4. Schematic Diagram – FRONT AMP Section (2/2) – .... 13 5-5. Printed Wiring Boards – CONTROL Section – ............ 14 5-6. Schematic Diagram – CONTROL Section – ................. 15 5-7. Printed Wiring Boards – POWER Section – ................. 16 5-8. Schematic Diagram – POWER Section – ..................... 17 5-9. IC Pin Function Description ........................................... 18 6. EXPLODED VIEWS 6-1. Cover Section .................................................................. 18 6-2. Front Panel Section ......................................................... 19 6-3. Chassis Section ............................................................... 20 7. ELECTRICAL PARTS LIST ............................... 21

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3 TA - S 3 SECTION 1 SERVICING NOTES This set is a component of the MHC-S3. The MHC-S3 system configuration is as shown below, and there- fore it does not operate normally unless all four components are connected. In performing the repair, connect all components with the system cables. Note:The precaution to the users is described on the label stuck on the back panel (CD player) and in the troubleshooting section in the Operation Manual. System Configuration: POWER SUPPLYAC IN TA SYSTEM & CD µcon ST CDP TC µcon TC DISPLAY FRONT AMP BOARD SERVICE POSITION In checking the FRONT AMP board, prepare jig (extension cable J-2501-087-A: 1.25 mm Pitch, 23 core, Length 300 mm) (Fig A) (Fig A) Turn over the FRONT AMP board with Heat Sink, THP board and RELAY board connected. Remove the back panel (2CD/VCD) section. Remove the fan motor connector lead wire. FRONT AMP board (CN104) Connect jig (extension cable J-2501-087-A to the FRONT AMP board (CN104) and PANEL board (CN700). PANEL board (CN700)