
–3 –
KV-XA29M31/XA29M50/
XA29M61/XA34M31
RM-954
TABLE OF CONTENTS
Section Title Page
SELF DIAGNOSIS FUNCTION ................................ 4
1. GENERAL ........................................................................ 7
2. DISASSEMBLY
2-1. Rear Cover Removal................................................ 25
2-2. Speaker Removal ..................................................... 25
2-3. Chassis Assy Removal ............................................. 25
2-4. F Bracket Removal .................................................. 25
2-5. Service Position ....................................................... 26
2-6. Replacement of Parts ............................................... 26
2-6-1 Replacement of Light Guide .............................................. 26
2-6-2 Replacement of Power Button ........................................... 26
2-7.
HV Cap Block, PWB Holder and J Board Removal ..
26
2-8. Terminal Bracket Removal ...................................... 26
2-9. D2 and D3 Boards Removal................................... 27
2-10. B1 and V1 Boards Removal .................................... 27
2-11. H Board Removal .................................................... 27
2-12. A and B Boards Removal ........................................ 27
2-13. Picture Tube Removal.............................................. 28
2-14. Removal of Anode Cap............................................ 28
3. ADVANCE OPERATION
3-1. "RESET" Function................................................... 29
4. SET-UP ADJUSTMENTS
4-1. Beam Landing .......................................................... 30
4-2. Convergence Adjustment ......................................... 31
4-3. Focus Adjustment .................................................... 33
4-4. G2 (Screen) and White Balance Adjustments......... 34
5. CIRCUIT ADJUSTMENTS
5-1. Adjustments with Commander ................................ 35
5-2. Adjustment Method ................................................. 37
5-3. Picture Quality Adjustments.................................... 40
5-4. Display position Adjustment ................................... 40
5-5. Deflection Adjustment ............................................. 40
5-6. H-Trapezoid Adjustment ......................................... 41
5-7. A Board Adjustment After IC003
(memory) Replacement ........................................... 41
5-8. Picture Distortion Adjustment ................................. 42
Section Title Page
6. DIAGRAMS
6-1. Block Diagram .......................................................... 43
6-2. Circuit Board Location ............................................. 45
6-3. Schematic Diagrams ................................................. 47
(1) Schematic Diagrams of F, J and VM1 Boards ... 47
(2) Schematic Diagram of A Board .......................... 49
(3) Schematic Diagram of B Board.......................... 65
(4) Schematic Diagram of B1 and D3 Boards ........ 73
(5) Schematic Diagram of C6 and V1 Boards ......... 75
(6) Schematic Diagram of H Board ......................... 77
(7) Schematic Diagram of D2 Board ....................... 79
6-4. A and B Boards Mark List ....................................... 81
6-5. Voltage Measurements.............................................. 83
6-6. Waveforms ................................................................ 95
6-7. Printed Wiring Boards and Parts Location............... 97
6-8. Semiconductors....................................................... 105
7. EXPLODED VIEWS
7-1. Picture Tube ............................................................ 108
7-2. Chassis .................................................................... 109
8. ELECTRICAL PARTS LIST.................................... 110