KV-XA29K94/XA34K94
RM-962
– 3 –
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
2-6-1Replacement of Light Guide ................................
26
2-6-2Replacement 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. P2 Board Removal ............................................... 27
2-11. H Board Removal ................................................ 27
2-12. A and B Boards Removal .................................... 27
2-13. Picture Tube Removal .......................................... 28
3. ADVANCE OPERATION
3-1.
"RESET" Function ............................................... 29
4. SET-UP ADJUSTMENTS
4-1.
Beam Landing
................................................... 30
4-2.
Convergence
................................................... 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 ............................................. 35
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 Boards 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 P2 Board ................... 73
(5) Schematic Diagram of C6 Board ................. 75
(6) Schematic Diagram of H Board .................... 77
(7) Schematic Diagram of D2 Board .................. 79
(8) Schematic Diagram of D3 Board .................. 81
6-4. Voltage Measurements ......................................... 83
6-5. Waveforms ........................................................... 93
6-6. Printed Wiring Boards and Parts Location .......... 95
6-7. Semiconductors .................................................. 103
7.
EXPLODED VIEWS
7-1. Picture Tube ....................................................... 105
7-2. Chassis ............................................................... 106
8.
ELECTRICAL PARTS LIST
............................... 107
