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TABLE OF CONTENTS
Section
Title
Page
1.
GENERAL
2.
DISASSEMBLY
2-1.
Terminal Cover, Lower Case .......................................... 2-1
2-2.
Upper Case .................................................................... 2-1
2-3.
Mechanism Deck ............................................................ 2-1
2-4.
Chucking Arm Block ....................................................... 2-1
2-5.
MD-90, Board, Lever Assembly ...................................... 2-2
2-6.
Base (C) Assembly ......................................................... 2-2
2-7.
Optical Device ................................................................ 2-2
2-8.
BU Holder ....................................................................... 2-2
2-9.
Gate Assembly, Cover (T) .............................................. 2-3
2-10.
Roller (Slider) ................................................................. 2-3
2-11.
Slider (L), Slider (R) ........................................................ 2-3
2-12.
FL-123 Board ................................................................. 2-3
2-13.
MB-99, IR-39 Boards ...................................................... 2-4
2-14.
Sliders (L) and (R) Phase Adjustment ............................ 2-4
2-15.
Internal Views ................................................................. 2-5
2-16.
Circuit Boards Location .................................................. 2-6
3.
BLOCK DIAGRAMS
3-1.
Overall Block Diagram .................................................... 3-1
3-2.
RF/SERVO Block Diagram ............................................. 3-3
3-3.
Signal Processor Block Diagram .................................... 3-5
3-4.
System Control Block Diagram ...................................... 3-7
3-5.
Video Block Diagram ...................................................... 3-9
3-6.
Audio Block Diagram .................................................... 3-10
3-7.
Interface Control Block Diagram ................................... 3-11
3-8.
Power Block Diagram ................................................... 3-12
4.
PRINTED WIRING BOARDS AND SCHEMATIC
DIAGRAMS
DIAGRAMS
4-1.
Frame Schematic Diagram ............................................. 4-3
4-2.
Printed Wiring Boards and Schematic Diagrams ........... 4-5
• IR-39 (IR) Printed Wiring Boards and Schematic
• IR-39 (IR) Printed Wiring Boards and Schematic
Diagrams .................................................................... 4-5
• MB-99 (VIDEO/AUDIO/SIGNAL PROCESS/SERVO)
Printed Wiring Board .................................................. 4-7
• MB-99 (SYSTEM CONTROL) Schematic
Diagram .................................................................... 4-11
• MB-99 (RF SERVO) Schematic Diagram ................. 4-13
• MB-99 (SIGNAL PROCESS) Schematic Diagram ... 4-15
• MB-99 (SERVO) Schematic Diagram ....................... 4-17
• MB-99 (SIGNAL PROCESS) Schematic Diagram ... 4-19
• MB-99 (SIGNAL PROCESS) Schematic Diagram ... 4-21
• MB-99 (POWER) Schematic Diagram ...................... 4-23
• MB-99 (AV OUT) Schematic Diagram ...................... 4-25
• MB-99 (VIDEO) Schematic Diagram ........................ 4-27
• MB-99 (AUDIO) Schematic Diagram ........................ 4-29
• MB-99 (AVMS) Schematic Diagram ......................... 4-31
• MD-89 (FUNCTION SWITCH 1)
• MB-99 (SIGNAL PROCESS) Schematic Diagram ... 4-15
• MB-99 (SERVO) Schematic Diagram ....................... 4-17
• MB-99 (SIGNAL PROCESS) Schematic Diagram ... 4-19
• MB-99 (SIGNAL PROCESS) Schematic Diagram ... 4-21
• MB-99 (POWER) Schematic Diagram ...................... 4-23
• MB-99 (AV OUT) Schematic Diagram ...................... 4-25
• MB-99 (VIDEO) Schematic Diagram ........................ 4-27
• MB-99 (AUDIO) Schematic Diagram ........................ 4-29
• MB-99 (AVMS) Schematic Diagram ......................... 4-31
• MD-89 (FUNCTION SWITCH 1)
Printed Wiring Board and Schematic Diagram ......... 4-33
• FL-123 (INTERFACE CONTROL)
Printed Wiring Board ................................................ 4-35
• FL-123 (INTERFACE CONTROL)
Schematic Diagram .................................................. 4-37
• MD-90 (FUNCTION SWITCH) Printed Wiring Board
and Schematic Diagram ........................................... 4-39
• MD-91 (SWITCH) Printed Wiring Board and
Schematic Diagram .................................................. 4-39
Section
Title
Page
5.
IC PIN FUNCTION DESCRIPTION
5-1.
System Control PIN Function (MB-99 Board IC103) ...... 5-1
5-2.
System Control PIN Function (FL-123 Board IC403) ..... 5-2
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.
Mecha Aging ................................................................ 6-10
6-7.
Emergency History ....................................................... 6-10
6-8.
Version Information ...................................................... 6-12
6-9.
Video Level Adjustment ................................................ 6-12
6-10.
IF CON Function Check Mode ..................................... 6-12
6-11.
Troubleshooting ............................................................ 6-15
7.
ELECTRICAL ADJUSTMENT
7-1.
Power Supply Check ...................................................... 7-1
1.
1.
MB-99 Boards .......................................................... 7-1
7-2.
Adjustment of Video System .......................................... 7-2
1.
1.
Video Level Adjustment (MB-99 Board) ................... 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 ......................... 7-2
8.
REPAIR PARTS LIST
8-1.
Exploded Views .............................................................. 8-1
8-1-1.
Case Assembly ............................................................ 8-1
8-1-2.
MECH.DECK Block (1) ................................................ 8-2
8-1-3.
MECH.DECK Block (2) ................................................ 8-3
8-1-4.
CHASSIS Block ........................................................... 8-4
8-1-5.
Supplied Accessories .................................................. 8-5
8-2.
Electrical Parts List ......................................................... 8-6
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