3
1. SERVICING NOTE......................................................... 4
2. GENERAL
Looking at the Controls ......................................................5
3. DISASSEMBLY
3-1. Case (Lower) Assy.............................................................. 6
3-2. Case (Upper) Assy.............................................................. 6
3-3. LCD Module....................................................................... 7
3-4. Main Board .........................................................................7
3-5. MD Mechanism Deck......................................................... 8
3-6. Service Assy, OP.................................................................8
3-7. Holder Assy.........................................................................9
3-8. Motor Flexible Board.......................................................... 9
3-9. DC Motor (M602)............................................................. 10
3-10. DC Motor (M601), DC Motor (M603)............................. 10
4. TEST MODE
4-1. Outline............................................................................... 11
4-2. Setting Method of Test Mode............................................ 11
4-3. Operation in Setting the Test Mode...................................11
4-4. Releasing the Test Mode................................................... 11
4-5. Configuration of Test Mode.............................................. 12
4-6. Manual Mode ....................................................................12
4-7. Overall Adjustment Mode................................................. 13
4-8. Self-Diagnosis Result Display Mode................................ 13
4-9. Reset the Error Display Code............................................ 14
4-10. Sound Skip Check Result Display Mode.......................... 15
4-11. Key Check Mode............................................................... 15
TABLE OF CONTENTS5. ELECTRICAL ADJUSTMENTS
5-1. Outline............................................................................... 17
5-2. Precautions for Adjustment............................................... 17
5-3. Adjustment Sequence........................................................ 17
5-4. NV Reset........................................................................... 17
5-5. Power Supply Manual Adjustment....................................18
5-6. Temperature Correction.....................................................19
5-7. Laser Power Check ...........................................................19
5-8. Overall Adjustment Mode................................................. 20
5-9. Mode Settings ...................................................................22
5-10. Resume Clear ....................................................................23
6. DIAGRAMS
6-1. IC Pin Function Description ............................................24
6-2. Block Diagram – Servo Section –..................................... 30
6-3. Block Diagram – Audio Section – ....................................31
6-4. Block Diagram – System Control/Power Section –.......... 32
6-5. Printed Wiring Board – Main Section –............................ 34
6-6. Schematic Diagram – Main Section (1/3) –...................... 36
6-7. Schematic Diagram – Main Section (2/3) –...................... 37
6-8. Schematic Diagram – Main Section (3/3) –...................... 38
7. EXPLODED VIEWS
7-1. Panel Section..................................................................... 43
7-2. Chassis Section .................................................................44
7-3. MD Mechanism Deck Section.......................................... 45
8. ELECTRICAL PARTS LIST......................................46
MZ-R501/R501PC