Sony R500PC User Manual

Page of 58
3
1. SERVICING NOTE
......................................................... 4
2. GENERAL
  Looking at the Controls ...................................................... 5
  Record an MD ..................................................................... 5
  Playing an MD right away .................................................. 6
3. DISASSEMBLY
3-1.   Case (Lower) Assy .............................................................. 7
3-2.   Case (Upper) Assy .............................................................. 7
3-3.   LCD Module ....................................................................... 8
3-4.   Main Board ......................................................................... 8
3-5.   MD Mechanism Deck ......................................................... 9
3-6.   Service Assy, OP ................................................................. 9
3-7.   Holder Assy ....................................................................... 10
3-8.   Motor Flexible Board ........................................................ 10
3-9.   Motor, DC (M602) ............................................................ 11
3-10. “Motor, DC (M601)”, “Motor, DC (M603)” .................... 11
4. TEST MODE
4-1.   Outline ............................................................................... 12
4-2.   Setting Method of Test Mode ............................................ 12
4-3.   Operation in Setting the Test Mode ................................... 12
4-4.   Releasing the Test Mode ................................................... 12
4-5.   Configuration of Test Mode .............................................. 13
4-6.   Manual Mode .................................................................... 13
4-7.   Overall Adjustment Mode ................................................. 14
4-8.   Self-Diagnosis Result Display Mode ................................ 14
4-9.   Reset the Error Display Code ............................................ 15
4-10. Sound Skip Check Result Display Mode .......................... 16
4-11. Key Check Mode ............................................................... 16
TABLE OF CONTENTS
5. ELECTRICAL ADJUSTMENTS
5-1.   Outline ............................................................................... 18
5-2.   Precautions for Adjustment ............................................... 18
5-3.   Adjustment Sequence ........................................................ 18
5-4.   NV Reset ........................................................................... 18
5-5.   Power Supply Manual Adjustment .................................... 19
5-6.   Temperature Correction ..................................................... 20
5-7.   Laser Power Check ........................................................... 20
5-8.   Overall Adjustment Mode ................................................. 21
5-9.   Resume Clear .................................................................... 23
5-10. Patch Data Rewriting when Nonvolatile
  Memory was Replaced ...................................................... 23
6. DIAGRAMS
6-1.   IC Pin  Function Description ............................................ 30
6-2.   Block Diagram – Servo Section – ..................................... 36
6-3.   Block Diagram – Audio Section – .................................... 37
6-4.   Block Diagram – System Control/Power Section – .......... 38
6-5.   Printed Wiring Board – Main Section – ............................ 40
6-6.   Schematic Diagram – Main Section (1/3) – ...................... 42
6-7.   Schematic Diagram – Main Section (2/3) – ...................... 43
6-8.   Schematic Diagram – Main Section (3/3) – ...................... 44
7. EXPLODED VIEWS
7-1.   Case (Lower) Section ........................................................ 49
7-2.   Case (Upper) Section ........................................................ 50
7-3.   Chassis Section ................................................................. 51
7-4.   MD Mechanism Deck Section .......................................... 52
8. ELECTRICAL PARTS LIST
...................................... 53
MZ-R500/R500PC