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TABLE OF CONTENTS
Section
Title
Page
Section
Title
Page
Service Note ............................................................................ 4
1.
GENERAL
Getting Started .............................................................. 1-1
Playing Discs ................................................................. 1-4
Using Various Functions with the Control Menu ........... 1-6
Enjoying Karaoke .......................................................... 1-11
Settings and Adjustments ............................................. 1-14
Additional Information ................................................... 1-16
Playing Discs ................................................................. 1-4
Using Various Functions with the Control Menu ........... 1-6
Enjoying Karaoke .......................................................... 1-11
Settings and Adjustments ............................................. 1-14
Additional Information ................................................... 1-16
2.
DISASSEMBLY
2-1.
Case Removal ............................................................... 2-1
2-2.
MB-98 Board Removal .................................................. 2-1
2-3.
Tray Cover Removal ...................................................... 2-1
2-4.
Front Panel Removal ..................................................... 2-1
2-5.
Power Block Removal ................................................... 2-2
2-6.
Mechanism Deck Removal ........................................... 2-2
2-7.
Rear Panel Removal ..................................................... 2-2
2-8.
AI-24 Board Removal .................................................... 2-2
2-9.
Tray Removal ................................................................. 2-3
2-10. Loading Motor (M001), MS-81 Board Removal ............ 2-3
2-11. Optical Pick-up Removal ............................................... 2-3
2-12. Internal Views ................................................................ 2-4
2-13. Circuit Boards Location ................................................. 2-5
2-11. Optical Pick-up Removal ............................................... 2-3
2-12. Internal Views ................................................................ 2-4
2-13. Circuit Boards Location ................................................. 2-5
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.
Audio DSP, MIC IN Block Diagram ............................... 3-9
3-6.
Video/Audio Out Block Diagram ................................... 3-11
3-7.
Interface Control Block Diagram ................................... 3-13
3-8.
Power 1 Block Diagram ................................................. 3-15
3-9.
Power 2 Block Diagram ................................................. 3-17
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
MS-81 (LOADING) Printed Wiring Board and
Schematic Diagram ....................................................... 4-5
MB-98 Printed Wiring Board ......................................... 4-7
MB-98 (RF AMP, SERVO) Schematic Diagram ............ 4-11
MB-98 (ARP, SERVO DSP) Schematic Diagram .......... 4-13
MB-98 (AV DECODER) Schematic Diagram ................ 4-15
MB-98 (BNR) Schematic Diagram ................................ 4-17
MB-98 (DRIVE) Schematic Diagram ............................ 4-19
MB-98 (SYSTEM CONTROL)
Schematic Diagram ....................................................... 4-21
MB-98 (CLOCK GENERATOR)
Schematic Diagram ....................................................... 4-23
MB-98 (AUDIO DSP, D/A CONVERTER)
Schematic Diagram ....................................................... 4-25
AI-24 Printed Wiring Board ........................................... 4-29
AI-24 (VIDEO BUFFER) Schematic Diagram ............... 4-31
AI-24 (AUDIO AMP) Schematic Diagram ..................... 4-33
AI-24 (KARAOKE DSP) Schematic Diagram ................ 4-35
AI-24 (IF CON) Schematic Diagram ............................. 4-37
MC-135 (MIC AMP) Schematic Diagram ...................... 4-39
MC-135 Printed Wiring Board ....................................... 4-41
SW-79 Printed Wiring Board ......................................... 4-42
SW-79 (FUNCTION SWITCH) Schematic Diagram ..... 4-43
HS13S0E Printed Wiring Board (EXCEPT Taiwan) ...... 4-45
HS13S0E Schematic Diagram (EXCEPT Taiwan) ........ 4-47
HS13S0U Printed Wiring Board (Taiwan) ..................... 4-49
HS13S0U Schematic Diagram (Taiwan) ....................... 4-51
MS-81 (LOADING) Printed Wiring Board and
Schematic Diagram ....................................................... 4-5
MB-98 Printed Wiring Board ......................................... 4-7
MB-98 (RF AMP, SERVO) Schematic Diagram ............ 4-11
MB-98 (ARP, SERVO DSP) Schematic Diagram .......... 4-13
MB-98 (AV DECODER) Schematic Diagram ................ 4-15
MB-98 (BNR) Schematic Diagram ................................ 4-17
MB-98 (DRIVE) Schematic Diagram ............................ 4-19
MB-98 (SYSTEM CONTROL)
Schematic Diagram ....................................................... 4-21
MB-98 (CLOCK GENERATOR)
Schematic Diagram ....................................................... 4-23
MB-98 (AUDIO DSP, D/A CONVERTER)
Schematic Diagram ....................................................... 4-25
AI-24 Printed Wiring Board ........................................... 4-29
AI-24 (VIDEO BUFFER) Schematic Diagram ............... 4-31
AI-24 (AUDIO AMP) Schematic Diagram ..................... 4-33
AI-24 (KARAOKE DSP) Schematic Diagram ................ 4-35
AI-24 (IF CON) Schematic Diagram ............................. 4-37
MC-135 (MIC AMP) Schematic Diagram ...................... 4-39
MC-135 Printed Wiring Board ....................................... 4-41
SW-79 Printed Wiring Board ......................................... 4-42
SW-79 (FUNCTION SWITCH) Schematic Diagram ..... 4-43
HS13S0E Printed Wiring Board (EXCEPT Taiwan) ...... 4-45
HS13S0E Schematic Diagram (EXCEPT Taiwan) ........ 4-47
HS13S0U Printed Wiring Board (Taiwan) ..................... 4-49
HS13S0U Schematic Diagram (Taiwan) ....................... 4-51
5.
IC PIN FUNCTION DESCRIPTION
5-1.
System Control Pin Function
(MB-98 Board IC103) .................................................... 5-1
(MB-98 Board IC103) .................................................... 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.
Mecha Aging ................................................................. 6-10
6-7.
Emergency History ........................................................ 6-10
6-8.
Version Information ....................................................... 6-11
6-9.
Video Level Adjustment ................................................ 6-11
6-10. IF Con Self Diagnostic Function ................................... 6-11
6-11. Troubleshooting ............................................................. 6-18
6-11. Troubleshooting ............................................................. 6-18
7.
ELECTRICAL ADJUSTMENT
7-1.
Power Supply Check ..................................................... 7-1
1.
HS13S0E/HS13S0U Boards ......................................... 7-1
7-2.
Adjustment of Video System ......................................... 7-2
1.
Video Level Adjustment (MB-98 BOARD) .................... 7-2
2.
Checking S Video Output S-Y ....................................... 7-2
3.
Checking S Video Output S-C ....................................... 7-2
4.
Checking Component Video Output Y .......................... 7-2
5.
Checking Component Video Output B-Y ...................... 7-3
6.
Checking Component Video Output R-Y ...................... 7-3
7-3.
Adjustment Related Parts Arrangement ....................... 7-4
8.
REPAIR PARTS LIST
8-1.
Exploded Views ............................................................. 8-1
8-1-1. Front Panel Assembly .............................................. 8-1
8-1-2. Chassis Assembly .................................................... 8-2
8-1-3. Mechanism Deck Assembly ..................................... 8-3
8-1-2. Chassis Assembly .................................................... 8-2
8-1-3. Mechanism Deck Assembly ..................................... 8-3
8-2.
Electrical Parts List ....................................................... 8-4
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