Table Of Contents - Sony HCD-MD373 Service Manual

1. SERVICING NOTE
.......................................................... 6
2. GENERAL
........................................................................ 16
3. DISASSEMBLY
3-1. Case ................................................................................... 19
3-2. Front Panel ......................................................................... 20
3-3. Back Panel ......................................................................... 20
3-4. Main Board and Power Transformer ................................. 21
3-5. CD Mechanism Deck ......................................................... 21
3-6. Tray, Gear and Cam ........................................................... 22
3-7. CD Base Unit ..................................................................... 22
3-8. Optical Pick-up Section of CD (KSS-213BA/F-NP) ......... 22
3-9. BD (CD) Board, Spindle Motor (M101) and
Sled Motor (M102) ............................................................ 23
3-10. MD Mechanism Deck ........................................................ 23
3-11. Slider (Cam) ...................................................................... 24
3-12. Base Unit (MBU-5A) and BD (MD) Board ...................... 24
3-13. Over Write Head ................................................................ 25
3-14. Optical Pick-up of MD (KMS-260B/J1N) ........................ 25
3-15. Spindle Motor (M901) and SLed Motor (M902) (MD) .... 25
4. TEST MODE
..................................................................... 26
5. ELECTRICAL ADJUSTMENTS
6. DIAGRAMS
6-1. Circuit Boards Location ..................................................... 40
6-2. Block Diagrams
• BD (CD) Section ............................................................ 41
• BD (MD) Section (1/2) ................................................... 42
• BD (MD) Section (2/2) ................................................... 43
• Main Section ................................................................... 44
6-3. Printed Wiring Board - BD (CD) Section - ...................... 46
6-4. Schematic Diagram - BD (CD) Section - ......................... 47
6-5. Printed Wiring Board - BD (MD) Section - ..................... 48
6-6. Schematic Diagram - BD (MD) Section - (1/2) ............... 49
6-7. Schematic Diagram - BD (MD) Section - (2/2) ............... 50
6-8. Schematic Diagram - SP Section - ................................... 51
6-9. Printed Wiring Board - SP Section - ................................ 51
6-10. Printed Wiring Board - Main Section - ............................ 52
6-11. Schematic Diagram - Main Section - (1/3) ...................... 53
6-12. Schematic Diagram - Main Section - (2/3) ...................... 54
6-13. Schematic Diagram - Main Section - (3/3) ...................... 55
6-14. Schematic Diagram - MD Digital Section - ..................... 56
6-15. Printed Wiring Board - MD Digital Section - .................. 57
6-16. Schematic Diagram - AMP Section - ............................... 58
6-17. Printed Wiring Board - AMP Section - ............................ 59
6-18. Schematic Diagram - Panel Section - ............................... 60
6-19. Printed Wiring Board - Panel Section - ............................ 61
6-20. Schematic Diagram - Power Section - ............................. 62
6-21. Printed Wiring Board - Power Section - ........................... 63
6-22. Schematic Diagram - BD Switch Section - ...................... 64
6-23. Printed Wiring Board - BD Swtich Section - ................... 64
6-24. Schematic Diagram - Loading Section - .......................... 64
6-25. Printed Wiring Board - Loading Section - ........................ 64
6-26. IC Block Diagrams ............................................................ 65
6-27. IC Pin Functions ................................................................ 69

TABLE OF CONTENTS

7. EXPLODED VIEWS
7-1. Case and Front Panel Section ............................................ 77
7-2. Chassis Section .................................................................. 78
7-3. MD Mechanism Section (MDM-5A) ................................ 79
7-4. MD Base Unit Section (MBU-5A) .................................... 80
7-5. CD Mechanism Section (CDM55A-5SBD32)................... 81
7-6. CD Base Unit Section (BU-5SBD32) ............................... 82
7-7. CD Mechanism Section (CDM55C-5BD32) ..................... 83
7-8. CD Base Unit Section (BU-5BD32) .................................. 84
8. ELECTRICAL PARTS LIST
............................... 31
Ver 1.1 2001.06
........................................ 85
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