– 3 –
KV-XA29K90
RM-914
TABLE OF CONTENTS
Section
Title
Page
Section
Title
Page
SELF DIAGNOSTIC FUNCTION .....................
4
1. GENERAL ........................................................
7
2. DISASSEMBLY
2-1. Rear Cover Removal ............................................... 23
2-2. Speaker Removal .................................................... 23
2-3. Chassis Assy Removal ............................................ 23
2-4. F Bracket Removal .................................................. 23
2-5. Service Position ...................................................... 23
2-6. Replacement Of Parts ............................................. 23
2-6-1. Light Guide .................................................. 23
2-6-2. Power Button ................................................ 23
2-7. HV Cap Block, PWB Holder and J Board Removal24
2-8. Terminal Bracket Removal ..................................... 24
2-9. D3 Board Removal .................................................. 24
2-10. H Board Removal .................................................... 24
2-11. A and B Boards Removal ....................................... 24
2-12. Picture Tube Removal ............................................. 25
3. ADVANCE OPERATION
3-1. "RESET" FUNCTION ............................................ 26
4. SET-UP ADJUSTMENTS
4-1. Beam Landing ......................................................... 27
4-2. CONVERGENCE ................................................... 28
4-3. Focus Adjustment .................................................... 30
4-4. G2 (SCREEN) AND white balance adjustments ... 31
5. CIRCUIT ADJUSTMENTS
5-1. Adjustment With Commander ................................ 32
5-2. Adjustment Method ................................................ 32
5-3. Picture Quality Adjustments ................................... 37
5-4. Display position Adjustment .................................. 37
5-5. Deflection Adjustment ............................................ 37
5-6. H-Trapezoid Adjustment ......................................... 38
5-7. A Board Adjustment After IC003 Replacement .... 38
5-8. Picture Distortion Adjustment ................................ 39
6. DIAGRAMS
6-1. Block Diagram ........................................................ 41
6-2. Circuit Boards Location .......................................... 43
6-3. Schematic Diagram ................................................. 44
(1) Schematic Diagrams of F, J and VM1 Boards .. 45
(2) Schematic Diagram of A Board ........................ 47
(3) Schematic Diagram of B Board ........................ 63
(4) Schematic Diagrams of C6 and D3 Boards ...... 65
(5) Schematic Diagrams of B1 and H Boards ........ 67
6-4. Voltage Measurement ............................................. 69
6-5. Waveforms .............................................................. 73
6-6. Printed Wiring Boards and Parts Location ............. 74
6-7. Semiconductors ....................................................... 81
7. EXPLODED VIEWS
7-1. Picture tube ............................................................. 83
7-2. Chassis ..................................................................... 84
8. ELECTRICAL PARTS LIST ............................
85
