— 2 —
TABLE OF CONTENTS
1. GENERAL ··········································································· 3
2. DISASSEMBLY
2-1. Sliding Panel Assembly ······················································ 5
3. SERVICE MODE ······························································· 6
4. DIAGRAMS
4-1. Circuit Boards Location ··················································· 10
4-2. Block Diagrams
• Main Section ·································································· 11
• Power Section ································································13
4-3. Printed Wiring Board – Main Section – ··························· 17
4-4. Schematic Diagram
– Main (1/2) Section (V5550 Model) – ····························19
4-5. Schematic Diagram
– Main (1/2) Section (V7770 Model) – ····························21
4-6. Schematic Diagram – Main (2/2) Section – ····················· 23
4-7. Schematic Diagram – Power Amp Section – ··················· 25
4-8. Printed Wiring Board – Power Amp Section –················· 27
4-9. Schematic Diagram – Display Section – ·························· 29
4-10. Printed Wiring Board – Display Section – ······················· 31
4-11. Schematic Diagram – Sliding Panel Section – ················· 33
4-12. Printed Wiring Board – Sliding Panel Section – ·············· 35
4-13. Schematic Diagram – Surround Amp Section – ··············· 37
4-14. Printed Wiring Board – Surround Amp Section – ············39
4-15. Printed Wiring Board – Trans Section – ··························· 41
4-16. Schematic Diagram – Trans Section – ····························· 43
4-17. Schematic Diagram – AV/Mic Section –··························44
4-18. Printed Wiring Board – AV/Mic Section – ······················· 45
4-19. IC Block Diagrams ··························································· 46
4-20. IC Pin Function ································································49
5. EXPLODED VIEWS
5-1. Case and Sliding Panel Section ········································ 52
5-2. Front Panel Section ·························································· 53
5-3. Slide Mechanism Section ················································· 54
5-4. Circuit Boards and Back Panel Section ····························55
6. ELECTRICAL PARTS LIST········································· 56
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE
WITH MARK ! 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.
MODEL IDENTIFICATION
— BACK PANEL —
V5550: Hong Kong, Malaysia, Singapore,
Indonesia
4-900-848-5π
V7770: Hong Kong, Malaysia, Singapore 4-900-848-6π
V7770: Thai, Chinese 4-900-848-7π
V5550: Chinese 4-900-848-8π
MODEL PART No.
LABEL MODEL NUMBER
No.
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