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KV-XA25M93/XA29M80
RM-954
TABLE OF CONTENTS
Section
Title
Page
SELF DIAGNOSIS FUNCTION
................................
4
1. GENERAL
........................................................................
7
2. DISASSEMBLY
2.1
Tweeter Removal ..................................................... 24
2-2.
Rear Cover Removal ................................................ 24
2-3.
Speaker Removal ..................................................... 24
2-4.
Chassis Assy Removal ............................................. 24
2-5.
F Bracket Removal .................................................. 25
2-6.
Service Position ....................................................... 25
2-7.
Replacement of Parts ............................................... 25
2-7-1 Replacement of Light Guide ..............................................
25
2-7-2 Replacement of Power Button ...........................................
25
2-8.
J and J1 Board Removal .............................................. 26
2-9.
Terminal Bracket Removal ...................................... 26
2-10. D3 Board Removal .................................................. 26
2-11. B1 Board Removal ................................................... 26
2-12. H Board Removal .................................................... 26
2-13. A and B Boards Removal ........................................ 26
2-14. Picture Tube Removal .............................................. 27
2-15. Removal of Anode Cap ............................................ 27
3. ADVANCE OPERATION
3-1.
"RESET" Function ................................................... 28
4. SET-UP ADJUSTMENTS
4-1.
Beam Landing .......................................................... 29
4-2.
Convergence Adjustment ......................................... 30
4-3.
Focus Adjustment .................................................... 32
4-4.
G2 (Screen) and White Balance Adjustments ......... 33
5. CIRCUIT ADJUSTMENTS
5-1.
Adjustments with Commander ................................ 34
5-2.
Adjustment Method ................................................. 34
5-3.
Picture Quality Adjustments .................................... 39
5-4.
Display position Adjustment ................................... 39
5-5.
Deflection Adjustment ............................................. 39
5-6.
H-Trapezoid Adjustment ......................................... 40
5-7.
A Board Adjustment after IC003 Replacement ...... 40
5-8.
Picture Distortion Adjustment ................................. 41
Section
Title
Page
6.
DIAGRAMS
6-1. Block Diagram .......................................................... 43
6-2. Circuit Board Location ............................................. 47
6-3. Schematic Diagrams ................................................. 48
(1) Schematic Diagram of A Board .......................... 49
(2) Schematic Diagram of B Board .......................... 65
(3) Schematic Diagram of B1 and D3 Boards ........ 73
(4) Schematic Diagram of C6 and J1 Boards .......... 75
(5) Schematic Diagram of H Board ......................... 77
(6) Schematic Diagram of F and J Boards ............... 79
(7) Schematic Diagram of VM1 Board .................... 80
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
Summary of Contents for TRINITRON KV-XA25M93
Page 1: ......
