Read Sony HCD-VR90AV Service Manual online
4
TABLE OF CONTENTS
6-15. Schematic Diagram Deck Section ································ 40
6-16. Printed Wiring Board Deck Section ····························· 41
6-17. Printed Wiring Board Power Section ··························· 42
6-18. Schematic Diagram Power (1/2) Section ····················· 43
6-19. Schematic Diagram Power (2/2) Section ····················· 44
6-20. Schematic Diagram Surround Section ························· 45
6-21. Printed Wiring Board Surround Section ······················· 45
6-22. Schematic Diagram FL Section ···································· 46
6-23. Printed Wiring Board FL Section ································· 47
6-24. Schematic Diagram Panel VR Section ························· 48
6-25. Printed Wiring Board Panel VR Section ······················ 49
6-26. Schematic Diagram TC Panel Section ························· 50
6-27. Printed Wiring Board TC Panel Section ······················· 51
6-28. Schematic Diagram CD Panel Section ························· 52
6-29. Printed Wiring Board CD Panel Section ······················ 53
6-30. Schematic Diagram CD Motor Section ························ 54
6-31. Printed Wiring Board CD Motor Section ····················· 55
6-32. Schematic Diagram Jack Section ································· 56
6-33. Printed Wiring Board Jack Section ······························ 57
6-34. Schematic Diagram Trans Section ······························· 58
6-35. Printed Wiring Board Trans Section ····························· 59
6-36. Schematic Diagram Leaf SW Section ·························· 59
6-37. Printed Wiring Board Leaf SW Section ······················· 59
6-38. IC Block Diagrams ··························································· 60
6-39. IC Pin Functions ······························································· 61
6-16. Printed Wiring Board Deck Section ····························· 41
6-17. Printed Wiring Board Power Section ··························· 42
6-18. Schematic Diagram Power (1/2) Section ····················· 43
6-19. Schematic Diagram Power (2/2) Section ····················· 44
6-20. Schematic Diagram Surround Section ························· 45
6-21. Printed Wiring Board Surround Section ······················· 45
6-22. Schematic Diagram FL Section ···································· 46
6-23. Printed Wiring Board FL Section ································· 47
6-24. Schematic Diagram Panel VR Section ························· 48
6-25. Printed Wiring Board Panel VR Section ······················ 49
6-26. Schematic Diagram TC Panel Section ························· 50
6-27. Printed Wiring Board TC Panel Section ······················· 51
6-28. Schematic Diagram CD Panel Section ························· 52
6-29. Printed Wiring Board CD Panel Section ······················ 53
6-30. Schematic Diagram CD Motor Section ························ 54
6-31. Printed Wiring Board CD Motor Section ····················· 55
6-32. Schematic Diagram Jack Section ································· 56
6-33. Printed Wiring Board Jack Section ······························ 57
6-34. Schematic Diagram Trans Section ······························· 58
6-35. Printed Wiring Board Trans Section ····························· 59
6-36. Schematic Diagram Leaf SW Section ·························· 59
6-37. Printed Wiring Board Leaf SW Section ······················· 59
6-38. IC Block Diagrams ··························································· 60
6-39. IC Pin Functions ······························································· 61
7. EXPLODED VIEWS
7-1.
Case and Back Panel Section ··········································· 69
7-2.
Front Panel Section 1 ······················································· 70
7-3.
Front Panel Section 2 ······················································· 71
7-4.
Chassis Section ································································· 72
7-5.
TC Mechanism Section 1 (TCM230AWR2/230PWR2) ·· 73
7-6.
TC Mechanism Section 2 (TCM230AWR2/230PWR2) ·· 74
7-7.
CD Mechanism Section (CDM37M-5BD32L) ················ 75
7-8.
Base Unit Section (BU-5BD32L) ····································· 76
8. ELECTRICAL PARTS LIST
······································· 77
1. GENERAL
·········································································· 5
2. DISASSEMBLY
2-1.
Front Panel ········································································· 7
2-2.
Main Board ········································································· 7
2-3.
Sub Panel ············································································ 8
2-4.
CD-L/CD-R Board and CD Lid Assembly ························· 8
2-5.
Tape Mechanism Deck and Cassette Lid ···························· 9
2-6.
CD Mechanism Deck ························································· 9
2-7.
Base Unit ············································································ 9
2-8.
Disc Table ········································································· 10
3. SERVICE MODE
···························································· 11
4. MECHANICAL ADJUSTMENTS
····························· 15
5. ELECTRICAL ADJUSTMENTS
······························· 15
6. DIAGRAMS
6-1.
Circuit Boards Location ··················································· 19
6-2.
Block Diagrams
BD Section ······································································· 20
Video Section ··································································· 21
Deck Section ····································································· 22
Main (1/2) Section ···························································· 23
Main (2/2) Section ···························································· 24
Power Section ··································································· 25
Display Section ································································· 26
BD Section ······································································· 20
Video Section ··································································· 21
Deck Section ····································································· 22
Main (1/2) Section ···························································· 23
Main (2/2) Section ···························································· 24
Power Section ··································································· 25
Display Section ································································· 26
6-3.
Printed Wiring Board BD Section ································ 28
6-4.
Schematic Diagram BD Section ··································· 29
6-5.
Printed Wiring Board Video Section ···························· 30
6-6.
Schematic Diagram Video (1/3) Section ······················ 31
6-7.
Schematic Diagram Video (2/3) Section ······················ 32
6-8.
Schematic Diagram Video (3/3) Section ······················ 33
6-9.
Printed Wiring Board Main Section ····························· 34
6-10. Schematic Diagram Main (1/5) Section ······················· 35
6-11. Schematic Diagram Main (2/5) Section ······················· 36
6-12. Schematic Diagram Main (3/5) Section ······················· 37
6-13. Schematic Diagram Main (4/5) Section ······················· 38
6-14. Schematic Diagram Main (5/5) Section ······················· 39
6-11. Schematic Diagram Main (2/5) Section ······················· 36
6-12. Schematic Diagram Main (3/5) Section ······················· 37
6-13. Schematic Diagram Main (4/5) Section ······················· 38
6-14. Schematic Diagram Main (5/5) Section ······················· 39
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