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MDS-NT1
SELF-DIAGNOSIS FUNCTION ........................... 2
1. SERVICING NOTES ............................................... 7
2. GENERAL ................................................................... 12
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 13
3-2. Case (Upper) ................................................................... 14
3-3. Main Board...................................................................... 15
3-4. MD Mechanism Deck (MDM-7S2B) ............................. 15
3-5. Front Panel Section ......................................................... 16
3-6. BD Board, Over Write Head (HR901) ........................... 16
3-7. Holder Assy ..................................................................... 17
3-8. Loading Motor Assy (M103) .......................................... 17
3-9. Sled Motor Assy (M102) ................................................ 18
3-10. Optical Pick-Up (KMS-262E) ........................................ 18
3-11. Spindle Motor Assy (M101) ........................................... 19
4. TEST MODE .............................................................. 20
5. ELECTRICAL ADJUSTMENTS ........................ 24
6. DIAGRAMS
6-1. Block Diagram – SERVO Section – ............................... 36
6-2. Block Diagram – MAIN Section – ................................. 37
6-3. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 38
6-4. Printed Wiring Board – BD Board – .............................. 39
6-5. Schematic Diagram – BD Board (1/2) – ........................ 40
6-6. Schematic Diagram – BD Board (2/2) – ........................ 41
6-7. Printed Wiring Board
– MAIN Board (Component Side) – .............................. 42
6-8. Printed Wiring Board
– MAIN Board (Conductor Side) – ................................ 43
6-9. Schematic Diagram – MAIN Board (1/2) – ................... 44
6-10. Schematic Diagram – MAIN Board (2/2) – ................... 45
6-11. Printed Wiring Board – Panel Board – ........................... 46
6-12. Schematic Diagram – Panel Board – .............................. 47
6-13. IC Pin Function Description ........................................... 51
7. EXPLODED VIEWS
7-1. Case Section .................................................................... 59
7-2. Front Panel Section ......................................................... 60
7-3. Case (B) Section.............................................................. 61
7-4. MD Mechanism Deck Section-1 (MDX-7S2B) ............. 62
7-5. MD Mechanism Deck Section-2 (MDX-7S2B) ............. 63
8. ELECTRICAL PARTS LIST ............................... 64
TABLE OF CONTENTS