– 3 –
TABLE OF CONTENTS
SERVICE NOTE
................................................................... 4
1.
GENERAL
................................................................... 1
2.
DISASSEMBLY
2-1.
LID Assembly Removal ................................................. 2-1
2-2.
Disk Base Assembly Removal ...................................... 2-1
2-3.
Base Unit Removal ........................................................ 2-1
2-4.
BU Holder Removal ....................................................... 2-1
2-5.
SW-406 Board Removal ................................................ 2-2
2-6.
HP-137 & Jack Plate Removal ...................................... 2-2
2-7.
Lower Case Removal .................................................... 2-2
2-8.
Power Switching Regulator Block Removal ................. 2-2
2-9.
Shield Plate Removal .................................................... 2-3
2-10. AV-77 Board Removal ................................................... 2-3
2-11. IF-106 Board Removal .................................................. 2-3
2-12. MB-108 & SW-407 Boards Removal ............................ 2-3
2-13. Circuit Boards Location ................................................. 2-4
3.
BLOCK DIAGRAMS
3-1.
Overall Block Diagram ................................................... 3-1
3-2.
System Control Block Diagram ..................................... 3-3
3-3.
RF/Servo Block Diagram ............................................... 3-5
3-4.
Signal Processor Block Diagram .................................. 3-7
3-5.
Video/Audio Block Diagram .......................................... 3-9
3-6.
Interface Control Block Diagram ................................... 3-11
3-7.
Power 1 Block Diagram ................................................. 3-13
3-8.
Power 2 Block Diagram ................................................. 3-15
4.
PRINTED WIRING BOARDS AND SCHEMATIC
DIAGRAMS
4-1.
Printed Wiring Boards and Schematic Diagrams ........ 4-1
4-2.
Frame Schematic Diagram ............................................ 4-3
Waveforms ..................................................................... 4-5
•
MB-108 Printed Wiring Board .................................. 4-7
•
MB-108 (System Control) Schematic Diagram ....... 4-9
•
MB-108 (Motor Drive) Schematic Diagram ............. 4-11
•
MB-108 (Servo) Schematic Diagram ....................... 4-13
•
MB-108 (AV Decoder) Schematic Diagram ............ 4-15
•
MB-108 (Audio DAC, PLL) Schematic Diagram ...... 4-17
•
MB-108 Board Differential Part List ......................... 4-17
•
AV-77 Printed Wiring Board ..................................... 4-19
•
AV-77 (Audio/Video Out) Schematic Diagram ........ 4-21
•
AV-77 Board Differential Part List ............................ 4-23
IF-106 Printed Wiring Board .................................... 4-25
IF-106 (Interface Control) Schematic Diagram ....... 4-27
SW-406, SW-407 Printed Wiring Boards ................ 4-29
SW-406 (Function Switch), SW-407 (Door Switch)
Schematic Diagram ............................................. 4-31
HP-137 Printed Wiring Board .................................. 4-33
HP-137 (Headphone) Schematic Diagram ............. 4-35
DPSN-20CP Printed Wiring Board .......................... 4-37
DPSN-20CP (Switching Regulator)
Schematic Diagram ............................................. 4-39
DPSN-20CP-2 Printed Wiring Board ....................... 4-41
DPSN-20CP-2 (Switching Regulator)
Schematic Diagram ............................................. 4-43
5.
IC PIN FUNCTION DESCRIPTION
5-1.
System Control Pin Function
(MB-108 BOARD IC104: MB9130RPFV-G-BND-E1) ... 5-1
6.
TEST MODE
6-1.
General Description ...................................................... 6-1
6-2.
Starting Test Mode ......................................................... 6-1
6-3.
Syscon Diagnosis .......................................................... 6-1
6-4.
Drive Auto Adjustment ................................................... 6-5
6-5.
Drive Manual Operation ................................................ 6-7
6-6.
Emergency History ........................................................ 6-10
6-7.
Version Information ....................................................... 6-11
6-8.
Video Level Adjustment ................................................ 6-11
6-9.
Troubleshooting ............................................................. 6-11
7.
ELECTRICAL ADJUSTMENT
7-1.
Power Supply Check ..................................................... 7-1
7-2.
Adjustment of Video System ......................................... 7-2
1.
Video Level Adjustment ................................................ 7-2
2.
Checking S Video Output S-Y ....................................... 7-2
3.
Checking S Video Output S-C ...................................... 7-2
7-3.
Adjustment Related Parts Arrangement ....................... 7-3
8.
REPAIR PARTS LIST
8-1.
Exploded Views ............................................................. 8-1
8-1-1. Disk Base Section .................................................... 8-1
8-1-2. Lower Case Section ................................................. 8-2
8-2.
Electrical Parts List ........................................................ 8-3
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