Read Sony KV-XA21M30 Service Manual online
– 4 –
KV-XA21M30/XA21M63
RM-952
KV-XA21N90
RM-915
TABLE OF CONTENTS
Section
Title
Page
SELF DIAGNOSIS FUNCTION
................................
5
1. GENERAL
........................................................................
8
2. DISASSEMBLY
2-1.
3D Speaker Removal ............................................... 30
2-2.
Rear Cover Removal ................................................ 30
2-3.
Speaker Removal ..................................................... 30
2-4.
Chassis Assy Removal ............................................. 30
2-5.
F, H4 and K2 Board Removal ................................. 30
2-6.
J3 Board and Terminal Bracket Removal ................ 30
2-7.
Service Position ....................................................... 31
2-8.
Replacement of Parts ............................................... 31
2-8-1. Replacement of Light Guide ..........................................
31
2-8-2. Replacement of Power Button ........................................
31
2-9.
Picture Tube Removal .............................................. 31
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing .......................................................... 33
3-2.
Convergence Adjustment ......................................... 34
3-3.
Focus Adjustment .................................................... 36
3-4.
G2 (Screen) and White Balance Adjustments ......... 36
4. CIRCUIT ADJUSTMENT
4-1.
Adjustments with Commander ................................ 37
4-2.
Adjustment Method ................................................. 37
4-3.
Picture Quality Adjustments .................................... 42
4.4
Deflection Adjustment ............................................. 42
4-5.
A Board Adjustment After IC003
(memory) Replacement ........................................... 42
(memory) Replacement ........................................... 42
4-6.
Picture Distortion Adjustment ................................. 43
Section
Title
Page
5. DIAGRAMS
5-1.
Block Diagram ......................................................... 45
5-2.
Circuit Boards Location .......................................... 47
5-3.
Schematic Diagrams ................................................ 48
(1)
Schematic Diagram of F, J3 and C1 Boards ........... 49
(2)
Schematic Diagrams of A Board ............................. 51
(3)
Schematic Diagram of H4 and K2 Boards ................. 67
5-4.
Voltage Measurements ............................................ 71
5-5.
Waveforms ............................................................... 74
5-6.
Printed Wiring Boards and Parts Location .............. 75
5-7.
Semiconductors ........................................................ 80
6. EXPLODED VIEWS
6-1.
Picture Tube ............................................................. 82
6-2.
Chassis ..................................................................... 83
7. ELECTRICAL PARTS LIST
....................................... 84
Click on the first or last page to see other KV-XA21M30 service manuals if exist.