1.DISASSEMBLY .Rear Cover Removal ... 7 Vesa Bracket Assembly Removal ... 9 H1 Board Removal ... 11 U1 Board Removal ... 11 G1H Board Removal ... 12 G3 and D1 Boards Removal ... 13 DTT Shield, UT and BG1 Boards Removal ... 14 D2 Board Removal ... 15 Inlet, AC (with noise filter) Removal ... 15 Speaker H3 and H4 Boards Removal ... 17 LCD Panel Removal ... 18 2. WIRE DRESSING 2-1 KLV-26V300A 20 2-2 KLV-32V300A 22 2-3 KLV-40V300A 25 2-4 KLV-46V300A 29 3.SERVICE ADJUSTMENTS 3-1. How to enter Service Mode ... 34 3-2. Signal Level Adjustment ... 34 3-3. Gamma Adjustment ... 36 3-4. White Balance Adjustment ... 37 3-5. Panel Replacement ... 38 3-6. Board Replacement ... 38 Section Title Page 4.DIAGRAMS Block Diagram ... 39 4-1-1. BG1 (1/3) Block Diagram ... 39 4-1-2. BG1 (2/3), H1, H3, H4 and UT Diagrams ... 40 4-1-3. BG1 (3/3) and U1 Diagrams ... 42 Circuit Boards Location ... 44 Schematic Diagram Information ... 44 4-3-1. BG1 Board — (001) ... 45 4-3-2. BG1 Board — (002) ... 46 4-3-3. BG1 Board — (003) ... 48 4-3-4. BG1 Board — (004) ... 50 4-3-5. BG1 Board — (005) ... 52 4-3-6. BG1 Board — (006) ... 54 4-3-7. BG1 Board — (007) ... 56 4-3-8. BG1 Board — (008) ... 58 4-3-9. BG1 Board — (009) ... 60 4-3-10. G1H, G3, D1 & D2 Boards Schematic Diagram ... 62 4-3-11. H1 Board Schematic Diagram ... 63 4-3-12. H3 Board Schematic Diagram ... 64 4-3-13. H4 Board Schematic Diagram ... 66 4-3-14. U1 Board Schematic Diagram ... 67 4-3-15. UT Board Schematic Diagram ... 69 Voltage Measurement and Waveforms ... 71 Printed Wiring Boards ... 73 Semiconductors ... 81 5.EXPLODED VIEWS 5-1. Rear Cabinet and Stand Assy ... 83 5-2. Frame and Cover ... 85 5-3. Chassis-1 ... 87 5-4. Chassis-2 ... 88 5-5. H3, H4 Boards and Speaker 90 5-6. Bezel Assy and LCD Panel ... 91 5-7. Accessories and Packing Materials ... 92 6.ELECTRICAL PARTS LIST ... 95