Sony HCD-DZ720 [3/92] Table of contents
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Sony HCD-DZ720 [3/92] Table of contents

Sony HCD-DZ720 [3/92] Table of contents
3
HCD-DZ720
TABLE OF CONTENTS
1. SERVICING NOTE ................................................... 4
2. GENERAL ................................................................... 10
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 13
3-2. Case, Front Panel Assy .................................................... 14
3-3. FL Board.......................................................................... 15
3-4. JACK Board, SW Board .................................................. 15
3-5. IO-S TERMINAL Board, SPEAKER Board .................. 16
3-6. MAIN Board.................................................................... 16
3-7. DMB12 Board ................................................................. 17
3-8. DC Fan, Tuner Unit ......................................................... 17
3-9. POWER Board ................................................................ 18
3-10. DVD Mechanism Deck (CDM85-DVBU102) ................ 18
3-11. Tray.................................................................................. 19
3-12. Belt, MS-203 Board ........................................................ 19
3-13. Optical Pick-up (KHM-310CAA) ................................... 20
4. TEST MODE ............................................................... 21
5. ELECTRICAL ADJUSTMENT ............................. 25
6. DIAGRAMS
6-1. Block Diagram – RF Section –....................................... 28
6-2. Block Diagram – AMP Section – ................................... 29
6-3. Block Diagram – AUDIO Section – ............................... 30
6-4. Block Diagram – VIDEO Section – ............................... 31
6-5. Block Diagram – POWER Section –.............................. 32
6-6. Printed Wiring Board – DMB12 Board (Side A) – ......... 33
6-7. Printed Wiring Board – DMB12 Board (Side B) – ......... 34
6-8. Schematic Diagram – DMB12 Board (1/7) –................. 35
6-9. Schematic Diagram – DMB12 Board (2/7) –................. 36
6-10. Schematic Diagram – DMB12 Board (3/7) –................. 37
6-11. Schematic Diagram – DMB12 Board (4/7) –................. 38
6-12. Schematic Diagram – DMB12 Board (5/7) –................. 39
6-13. Schematic Diagram – DMB12 Board (6/7) –................. 40
6-14. Schematic Diagram – DMB12 Board (7/7) –................. 41
6-15. Printed Wiring Board – MAIN Board (Side A) –............ 42
6-16. Printed Wiring Board – MAIN Board (Side B) –............ 43
6-17. Schematic Diagram – MAIN Board (1/6) – ................... 44
6-18. Schematic Diagram – MAIN Board (2/6) – ................... 45
6-19. Schematic Diagram – MAIN Board (3/6) – ................... 46
6-20. Schematic Diagram – MAIN Board (4/6) – ................... 47
6-21. Schematic Diagram – MAIN Board (5/6) – ................... 48
6-22. Schematic Diagram – MAIN Board (6/6) – ................... 49
6-23. Printed Wiring Board
– IO-S TERMINAL Board (Side A) –............................. 50
6-24. Printed Wiring Board
– IO-S TERMINAL Board (Side B) –............................. 51
6-25. Schematic Diagram – IO-S TERMINAL Board – ......... 52
6-26. Printed Wiring Boards – PANEL Section –..................... 53
6-27. Schematic Diagram – PANEL Section – ....................... 54
6-28. Printed Wiring Board – SPEAKER Board – ................... 55
6-29. Schematic Diagram – SPEAKER Board – .................... 55
6-30. Printed Wiring Board – MS-203 Board –........................ 56
6-31. Schematic Diagram – MS-203 Board – ........................ 56
6-32. Printed Wiring Board – POWER Board – ....................... 57
6-33. Schematic Diagram – POWER Board – ........................ 58
7. EXPLODED VIEWS
7-1. Overall Section ................................................................ 71
7-2. Front Panel Section ......................................................... 72
7-3. Chassis Section ................................................................ 73
7-4. DVD Mechanism Deck Section (CDM85-DVBU102) ... 74
8. ELECTRICAL PARTS LIST .................................. 75

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