1 Safety Precautions 41.1. General Guidelines 42 Prevention of Electro Static Discharge (ESD) toElectrostatically Sensitive (ES) Devices 43 Precaution of Laser Diode 54 Handling Precautions For Traverse Deck 54.1. Handling of optical pickup 54.2. Grounding for electrostatic breakdown prevention 55 Self-check function 65.1. How to access 65.2. Screen display 65.3. Display phenomenon and treatment method 65.4. DVD self-diagnosis 66 Servicing method (DVD unit) 86.1. When disc is unloadable 86.2. Replacing A-PCB 96.3. Replacing H-PCB and PD-PCB 146.4. Replacing HA-PCB 156.5. Replacing K-PCB (operation panel) and J-PCB (junction)156.6. Replacing PS-PCB (power supply switch) 166.7. Replacing speakers (SP) 167 Servicing method (LCD panel) 177.1. Replacing LCD panel PCB 177.2. Removing fluorescent lamp 187.3. Adjustment of LCD panel PCB 197.4. Service Position 208 Assembling and Disassembling the Optical Pickup(Mechanical Parts) 218.1. Handling the Optical Pickup 218.2. Disassembly Procedure 218.3. Disassembling the Clamp Base Unit 228.4. Disassembling the Clamper Weight, Clamper Yoke,Magnet and Clamper 228.5. Disassembling the Traverse Unit 228.6. Disassembling the Stepping Motor Unit 238.7. Disassembling the Optical Pickup Unit 238.8. Disassembling the Nut Unit 248.9. Disassembling the Sub-Shaft Preload Spring 248.10. Assembling the Optical Pickup 248.11. Disassembling the Spindle Motor Unit 258.12. Disassembling the Intermediate Chassis 268.13. Disassembling the Vertical cam and Drive gear 268.14. Disassembling the Pulley Gear and Deceleration Gear 268.15. Disassembling the Mechanism Loading P.C.B. 269 Service Tools and Equipment 279.1. Service Tools and Equipment Table 279.2. Storing and Handling Test Discs 2710 Adjustment method 2810.1. How to enter into adjustment mode 2810.2. Cancellation 2810.3. Contents of adjustment mode 2810.4. DVD level adjustment 2910.5. Video level adjustment 3111 Conductor Views 3311.1. P-Board 3311.2. A-Board 3511.3. DG-Board 3811.4. H, HA, J, K, PD, PSand Z-Board 4011.5. DVD Module-Board 4112 Abbreviations 4513 Voltage Chart 4713.1. DVD Module Board 4714 Block and Schematic Diagram 5114.1. Schematic Diagram Notes 5114.2. DVD Overall Block Diagram 5214.3. DVD Servo Block Diagram 5314.4. Power Block Diagrams 5414.5. Signal Block Diagrams 5614.6. DG-Board Block Diagrams 5814.7. Interconnection Schematic Diagrams 5914.8. H, HA, and A-Board (1/6) Schematic Diagrams 6014.9. A-Board (2/6) Schematic Diagrams 6114.10. A-Board (3/6) Schematic Diagrams 6214.11. A-Board (4/6) Schematic Diagrams 6314.12. A-Board (5/6) Schematic Diagrams 6414.13. A-Board (6/6) Schematic Diagrams 6514.14. DG-Board (1/4) Schematic Diagram 6614.15. DG-Board (2/4) Schematic Diagram 6714.16. DG-Board (3/4) Schematic Diagram 6814.17. DG-Board (4/4) Schematic Diagram 6914.18. J, K, and PS-Board Schematic Diagram 7014.19. P-Board (1/3) and Z-Board Schematic Diagram 7114.20. P-Board (2/3) and PD-Board Schematic Diagram 7214.21. P-Board (3/3) Schematic Diagram 7314.22. ADSC Section (DVD Module Board (1/8)) SchematicDiagram 7414.23. AV Decorder Section (DVD Module Board (2/8))Schematic Diagram 75CONTENTS Page Page2TC-15DT2