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ABLE OF CONTENTS
Section Title Page Section Title Page
Service Note ........................................................................\
.... 4
1. GENERAL
Precautions................................................................... 1-1
Simple Start Guide........................................................ 1-3
Hookups ........................................................................\
1-4
Playing Discs ................................................................. 1-8
Searching for a Scene................................................... 1-11
Viewing Information About the Disc.............................. 1-12
Sound Adjustments ....................................................... 1-13
Enjoying Mo vies............................................................ 1-14
Using Various Additional Functions ..............................1-16
Settings and Adjustments ............................................. 1-18
Additional Infor mation................................................... 1-20
2. DISASSEMBLY
2-1. Case Removal............................................................... 2-1
2-2. Tray Cover Assy Removal ............................................ 2-1
2-3. Front Panel Block Assy Removal ................................. 2-1
2-4. Power Block Removal ................................................... 2-1
2-5. Mechanism Deck Removal ........................................... 2-2
2-6. AV-64 Board Removal ................................................... 2-2
2-7. MB-105 Board Removal ................................................ 2-2
2-8. ER-19 Board Removal .................................................. 2-2
2-9. IF-94 Board Removal .................................................... 2-3
2-10. Optical Pick-up Remo val............................................... 2-3
2-11. Internal Vie ws ................................................................ 2-4
2-12. 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. Video (1) Block Diagram ............................................... 3-9
3-6. Video (2) Block Diagram ...............................................3-11
3-7. Audio (1) Block Diagram ...............................................3-13
3-8. Audio (2) Block Diagram ...............................................3-15
3-9. Interface Control Block Diagram ...................................3-17
3-10. Power (1) Bloc k Diagram.............................................. 3-19
3-11. Power (2) Bloc k Diagram.............................................. 3-21
4. PRINTED WIRING BOARDS AND SCHEMATIC
DIAGRAMS
4-1. Frame Schematic Diag ram ............................................ 4-3
4-2. Printed Wiring Boards and Schematic Diagrams......... 4-5
MS-81 (LOADING) Printed Wiring Board
and Schematic Diagra m................................................ 4-5
MB-105 Printed Wir ing Board....................................... 4-7
MB-105 (RF AMP, SERVO) Schematic Diagram.......... 4-11
MB-105 (ARP, SERVO DSP) Schematic Diagram........ 4-13
MB-105 (AV DECODER) Schematic Diagram.............. 4-15
MB-105 (MOTOR DRIVE) Schematic Diagram............4-17
MB-105 (SYSTEM CONTROL)
Schematic Diagra m....................................................... 4-19
MB-105 (CLOCK GENERATOR)
Schematic Diagra m....................................................... 4-21
MB-105 (I/P CONVERTOR) Schematic Diagram.........4-23
MB-105 (VIDEO ENCODER, AUDIO D/A
CONVERTER) Schematic Diag ram .............................. 4-25
MB-105 (AUDIO DSP) Schematic Diagram.................. 4-27
MB-105 (2ch/6ch DAC) Schematic Diagram................ 4-29
MB-105 (SACD DECODER) Schematic Diagram........4-31 LE-34 (LED) Printed Wiring Board
and Schematic Diagra
m................................................ 4-33
AV -64 Printed Wir ing Board.......................................... 4-35
AV -64 (VIDEO BUFFER) Schematic Diagram.............. 4-39
AV -64 (AUDIO AMP) Schematic Diagram.................... 4-41
AV -64 (5.1CH AUDIO AMP) Schematic Diagram.........4-43
IF-94 Printed Wir ing Board........................................... 4-45
IF-94 (IF CON) Schematic Diag ram ............................. 4-49
ER-19 Printed Wir ing Board.......................................... 4-51
ER-19 (EURO AV) Schematic Diagram........................ 4-53
ETXNY393N2F Printed Wir ing Board........................... 4-55
ETXNY393N2F (SWITCHING REGULATOR)
Schematic Diagra m....................................................... 4-57
HS12S1U Printed Wir ing Board.................................... 4-59
HS12S1U Schematic Diagra m...................................... 4-61
HS12S1F Printed Wir ing Board.................................... 4-63
HS12S1F Schematic Diagra m...................................... 4-65
5. IC PIN FUNCTION DESCRIPTION
5-1. System Control Pin Function
(MB-105 Board IC104) .................................................. 5-1
6.TEST MODE
6-1. General Descr iption...................................................... 6-1
6-2. Starting T est Mode........................................................ 6-1
6-3. Syscon Diagnosis .......................................................... 6-1
6-4. Drive Auto Adjustment .................................................. 6-6
6-5. Drive Manual Operation ................................................ 6-8
6-6. Mecha Aging ................................................................. 6-11
6-7. Emergency History ........................................................ 6-11
6-8. Version Information ....................................................... 6-12
6-9. Video Level Adjustment ................................................6-12
6-10. IF CON Self Diagnostic Function .................................. 6-12
6-11. Troub leshooting............................................................. 6-19
7. ELECTRICAL ADJUSTMENT
7-1. Power Supply Check..................................................... 7-1
1. ETXNY393N2F/HS12S1U/HS12S1F ...........................7-1
7-2. Adjustment of Video System......................................... 7-2
1. Video Lev el Adjustment................................................ 7-2
2. Progressive Video Output Level Adjustment ................7-2
3. Checking S Video Output S-Y....................................... 7-2
4. Checking S Video Output S-C....................................... 7-2
5. Checking Component Video Output Y.......................... 7-3
6. Checking Component Video Output B-Y...................... 7-3
7. Checking Component Video Output R-Y...................... 7-3
7-3. Adjustment Related Parts Arrangement ....................... 7-6
8. REPAIR PARTS LIST
8-1. Exploded Views ............................................................. 8-1
8-1-1. Front Panel Assembly (NS705V/NS755V) ..............8-1
8-1-2. Front Panel Assembly (NS905V/NS915V) ..............8-2
8-1-3. Chassis Assembly (NS705V/NS755V)....................8-3
8-1-4. Chassis Assembly (NS905V/NS915V)....................8-4
8-1-5. Mechanism Deck Assembly..................................... 8-5
8-2. Electrical Parts List ....................................................... 8-6
