Read Sony KV-XA21M8J Service Manual online
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KV-XA21M8J/XA21MSJ
RM-952
TABLE OF CONTENTS
Section
Title
Page
SELF DIAGNOSIS FUNCTION
................................
4
1. GENERAL
........................................................................
7
2. DISASSEMBLY
2-1.
Rear Cover Removal ................................................ 20
2-2.
Speaker Removal ..................................................... 20
2-3.
Chassis Assy Removal ............................................. 20
2-4.
F Bracket Removal .................................................. 20
2-5.
J2 Board and Terminal Bracket Removal ................ 20
2-6
Service Position ....................................................... 21
2-7
Replacement of Parts ............................................... 21
2-7-1. Replacement of Light Guide ..........................................
21
2-7-2. Replacement of Power Button ........................................
21
2-8.
Picture Tube Removal .............................................. 21
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing .......................................................... 23
3-2.
Convergence Adjustment ......................................... 24
3-3.
Focus Adjustment .................................................... 26
3-4.
G2 (Screen) and White Balance Adjustments ......... 26
4. CIRCUIT ADJUSTMENT
4-1.
Adjustments with Commander ................................ 27
4-2.
Adjustment Method ................................................. 27
4-3.
Picture Quality Adjustments .................................... 32
4-4
Deflection Adjustment ............................................. 32
4-5.
A Board Adjustment After IC003
(memory) Replacement ........................................... 32
(memory) Replacement ........................................... 32
4-6.
Picture Distortion Adjustment ................................. 33
Section
Title
Page
5. DIAGRAMS
5-1.
Block Diagram ......................................................... 35
5-2.
Circuit Boards Location .......................................... 37
5-3.
Schematic Diagrams ................................................ 38
(1)
Schematic Diagram of F, J2 and C1 Boards ........... 39
(2)
Schematic Diagrams of A Board ............................. 41
5-4.
Voltage List Measurements .................................... 57
5-5.
Waveforms ............................................................... 60
5-6.
Printed Wiring Boards and Parts Location .............. 61
5-7.
Semiconductors ........................................................ 65
6. EXPLODED VIEWS
6-1.
Picture Tube ............................................................. 67
6-2.
Chassis ..................................................................... 68
7. ELECTRICAL PARTS LIST
....................................... 69
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