Sony ST D777ES Service Manual

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2 TABLE OF CONTENTS 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 PUBLISHED BY SONY. 1. GENERAL ·······································································3 2. TEST MODE ·································································12 3. ELECTRICAL ADJUSTMENTS ·····························14 4. DIAGRAMS ···································································17 4-1. BLOCK DIAGRAM··························································17 4-2. CIRCUIT BOARDS LOCATION·····································18 4-3. PRINTED WIRING BOARD MAIN SECTION············19 4-4. SCHEMATIC DIAGRAM MAIN SECTION (1/4)········20 4-5. SCHEMATIC DIAGRAM MAIN SECTION (2/4)········21 4-6. SCHEMATIC DIAGRAM MAIN SECTION (3/4)········22 4-7. SCHEMATIC DIAGRAM MAIN SECTION (4/4)········23 4-8. SCHEMATIC DIAGRAM DISPLAY SECTION···········24 4-9. PRINTED WIRING BOARD DISPLAY SECTION······25 4-10. SCHEMATIC DIAGRAM POWER SECTION·············26 4-11. PRINTED WIRING BOARD POWER SECTION········27 4-12. IC PIN FUNCTION DESCRIPTION·······························28 4-13. IC BLOCK DIAGRAMS··················································31 5. EXPLODED VIEWS ····················································34 5-1. FRONT PANEL SECTION···············································34 5-2. MAIN SECTION·······························································35 6. ELECTRICAL PARTS LIST ····································36 SERVICE POSITION - The service position of the MAIN board is the state in which the back-panel is removed and the MAIN board is swing-raised by 90 °. (An insulating material is necessary to prevent the machine from shorting.) Insulating material MAIN board

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3 SECTION 1 GENERAL FRONT PANEL REAR PANEL 1 234 87 6 5 9 qd qa0 qs qf qg 1 2 3 4 5 6 7 8 1?/1 switch 2DAB button 3FM button 4AM button 5TUNING MODE button 6PTY button 7TUNING/SELECT button 8MENU button9ENTER button 0MEMORY button qaCHARACTER button qsMONO/SC button qdDISPLAY MODE button qfEON button qgDISPLAY button 1DAB RDI OUT OPTICAL jack 2DAB DIGITAL OUT COAXIAL jack 3DAB DIGITAL OUT OPTICAL jack 4ANTENNA DAB jack 5ANTENNA FM jack 6ANTENNA AM terminal 7ANALOG OUT jack 8POWER cord