Read Sony KV-PF21M70 Service Manual online
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KV-PF21M70/TF21M61/TF21M90/TF21P11
RM-952
TABLE OF CONTENTS
Section
Title
Page
SELF DIAGNOSIS FUNCTION
................................
3
1. GENERAL ..........................................................
8
2. DISASSEMBLY
2-1.
Rear Cover Removal ................................................ 32
2-2.
Chassis Assy Removal ............................................. 32
2-3.
F Bracket Removal .................................................. 32
2-4.
Service Position ....................................................... 33
2-5.
Replacement of Parts ............................................... 33
2-5-1.
Replacement of Control Button .......................
33
2-5-2.
Replacement of Bar Control.............................
33
2-6.
Terminal Bracket Removal ...................................... 33
2-7.
Degauss Coil Removal ............................................. 34
2-8.
Picture Tube Removal .............................................. 34
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing .......................................................... 36
3-2.
Convergence ............................................................. 37
3-3.
Focus Adjustment .................................................... 39
3-4.
G2 (Screen) and White Balance Adjustments ......... 39
4. CIRCUIT ADJUSTMENTS
4-1.
Adjustments with Commander ................................ 40
4-2.
Adjustment Method ................................................. 41
4-3.
Picture Quality Adjustments .................................... 46
4-4.
A Board Adjustment After IC003 (Memory)
Replacement............................................................. 46
Replacement............................................................. 46
4-5.
Picture Distortion Adjustment ................................. 47
Section
Title
Page
5. DIAGRAMS
5-1
Block Diagram ......................................................... 59
5-2
Frame Schematic Diagram ...................................... 62
5-3
Circuit Boards Location .......................................... 64
5-4
Schematic Diagrams and Printed Wiring Boards ... 65
(1)
Schematic Diagram of A(1/2) Board ....................... 67
(2)
Scheamtic Diagram of A(2/2) Board ....................... 71
(3)
Schematic Diagrams of C3 and C5 Boards ............. 79
(4)
Schematic Diagram of V1 Board ............................ 85
(5)
Schematic Diagram of F Board ............................... 87
5-5
Semicondutors ......................................................... 90
6. EXPLODED VIEWS
6-1.
Chassis (KV-PF21M70) ........................................... 93
6-2
Chassis (KV-TF21M61/TF21M90/TF21P11)......... 95
7. ELECTRICAL PARTS LIST
...................................
97
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