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TABLE OF CONTENTS
Section Title Page Section Title Page
Service Note ............................................................................ 4
1. GENERAL
This Player Can Play the Following Discs .................... 1-1
Getting Started .............................................................. 1-1
Basic Operations ........................................................... 1-2
Playing Discs in Various Modes .................................... 1-4
Setting and Adjustments ............................................... 1-9
Dolby Digital Surround .................................................. 1-10
Additional Information ................................................... 1-11
2. DISASSEMBLY
2-1. CASE REMOVAL ......................................................... 2-1
2-2. FRONT PANEL SECTION REMOVAL....................... 2-1
2-3. MB-83 BOARD REMOVAL .......................................... 2-1
2-4. REAR PANEL REMOVAL ........................................... 2-1
2-5. TABLE ASS’Y REMOVAL............................................ 2-2
2-6. ROTARY MOTOR ASS’Y (M951) REMOVAL ........... 2-2
2-7. CHASSIS ASS’Y REMOVAL ....................................... 2-2
2-8. LOADING MOTOR ASS’Y (M991) REMOVAL ......... 2-2
2-9. BU HOLDER ASS’Y REMOVAL ................................ 2-3
2-10. TK-48 BOARD REMOVAL .......................................... 2-3
2-11. SKEW MOTOR ASS’Y (M902) REMOVAL............... 2-3
2-12. SLED MOTOR ASS’Y (M501) REMOVAL ................ 2-3
2-13. SPINDLE MOTOR ASS’Y (M901) REMOVAL.......... 2-4
2-14. OPTICAL PICK-UP REMOVAL ................................... 2-4
2-15. INTERNAL VIEWS ....................................................... 2-4
2-16. 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 Precess Block Diagram ..................................... 3-5
3-4. Video Block Diagram..................................................... 3-7
3-5. System Control Block Diagram ..................................... 3-9
3-6. Audio Block Diagram..................................................... 3-11
3-7. Mode Control Block Diagram ........................................ 3-13
3-8. Power Block Diagram.................................................... 3-15
4. PRINTED WIRING BOARDS AND SCHEMATIC
DIAGRAMS
4-1. Frame Schematic Diagram............................................ 4-1
4-2. Printed Wiring Boards and Schematic Diagrams ......... 4-5
TK-48 Printed Wiring Board .......................................... 4-5
TK-48 (RF, Servo 1) Schematic Diagram ..................... 4-7
TK-48 (RF, Servo 2) Schematic Diagram ..................... 4-9
MB-83 Printed Wiring Board ......................................... 4-11
MB-83 (AC-3 Decoder) Schematic Diagram ................ 4-15
MB-83 (M Gate Array) Schematic Diagram.................. 4-17
MB-83 (AV Decoder) Schematic Diagram.................... 4-19
MB-83 (Clock Generator) Schematic Diagram............. 4-21
MB-83 (Video Encoder) Schematic Diagram................ 4-23
FG-44 Printed Wiring Board.......................................... 4-26
MB-83 (Drive 1) Schematic Diagram ............................ 4-27
MB-83 (Drive 2), FG-44 Schematic Diagram .............. 4-29
MB-83 (DSP 1) Schematic Diagram ............................. 4-31
MB-83 (DSP 2) Schematic Diagram ............................. 4-33
MB-83 (Roulette), CK-78, LM-55, SE-70
Schematic Diagram ....................................................... 4-35
CK-78, LM-55, SE-70 Printed Wiring Boards ............... 4-37
MB-83 (Bias) Schematic Diagram ................................ 4-39
MB-83 (IF µ-com) Schematic Diagram ......................... 4-41
MB-83 (L Gate Array) Schematic Diagram ................... 4-43
MB-83 (ARP, Decrypt) Schematic Diagram .................. 4-45
MB-83 (System µ-com) Schematic Diagram ................ 4-47
MB-83 (S Gate Array) Schematic Diagram .................. 4-49
AU-198 Printed Wiring Board ....................................... 4-51
AU-198 (Audio 1) Schematic Diagram ......................... 4-55
AU-198 (Audio 2) Schematic Diagram ......................... 4-57
AU-198 (Audio 3) Schematic Diagram ......................... 4-59
AU-198 (Video Buffer) Schematic Diagram .................. 4-61
FL-89, LE-20 Printed Wiring Boards............................. 4-63
FL-89, LE-20 Schematic Diagrams............................... 4-65
FR-134, HP-97 Printed Wiring Boards ......................... 4-67
FR-134, HP-97 Schematic Diagrams ........................... 4-69
HS-934SU Printed Wiring Board .................................. 4-71
HS-934SU Schematic Diagram .................................... 4-73
5. IC PIN FUNCTION DESCRIPTION
5-1. Interface Control Pin Function (MB-83 Board IC604) .. 5-1
5-2 System Control Pin Function (MB-83 Board IC805) .... 5-2
6. TEST MODE
6-1. Starting up Test Mode ................................................... 6-1
6-2. Selection of Check Item ................................................ 6-1
6-2-1. Selected Item Check................................................ 6-1
6-2-2. All Items Check ........................................................ 6-1
6-3. Error Display.................................................................. 6-2
6-4. General Description of Checking Method..................... 6 -2
6-5. Drive Auto Adjustment................................................... 6-10
6-6. Drive Manual Operation ................................................ 6-14
6-6-1. Drive Manual Operation menu screen..................... 6-14
6-6-2. Disc Type .................................................................. 6-14
6-6-3. Manual Control 1...................................................... 6-14
6-6-4. Manual Control 2...................................................... 6-15
6-6-5. Manual Control 3...................................................... 6-15
6-6-6. Manual Adjust 1........................................................ 6-15
6-6-7. Manual Adjust 2........................................................ 6-16
6-6-8. Auto Adjust ............................................................... 6-16
6-6-9. Check ....................................................................... 6-16
6-6-10. EEPROM Data screen Display ................................ 6-17
6-7. Other Operation............................................................. 6-17
6-8. Emergency History ........................................................ 6-18
6-9. Error Code ..................................................................... 6-20
7. ELECTRICAL ADJUSTMENT
7-1. Power Supply Check ..................................................... 7-1
1. HS-934SU Board........................................................... 7-1
7-2. Adjustment of System Control ...................................... 7-2
1. System Clock 27 MHz Adjustment ................................ 7-2
7-3. Adjustment of Video System
1. Video Level Adjustment ................................................ 7-2
2. S-Terminal Output Check .............................................. 7-2
3. Checking Composite Video Output B-Y........................ 7-2
4. Checking Composite Video Output R-Y ....................... 7-3
5. Checking Composite Video Output Y ............................ 7-3
6. Checking S Video Output S-C....................................... 7-3
7. Checking S Video Output DC Level .............................. 7-3
7-4. Adjustment Related Parts Arrangement ....................... 7-4
8. REPAIR PARTS LIST
8-1. Exploded Views ............................................................. 8-1
8-1-1. Main Assembly ......................................................... 8-1
8-1-2. Front Panel Assembly .............................................. 8-2
8-1-3. Table Assembly ........................................................ 8-3
8-1-4. Chassis Assembly .................................................... 8-4
8-1-5. DVD Mechanism Chassis Assembly........................ 8-5
8-2. Electrical Parts List........................................................ 8-6