KV-HF21M50 - Sony TV Service Manual (repair manual). Page 3

Read Sony KV-HF21M50 Service Manual online

– 3 –
KV-HF21M50/XF21M80
RM-952
TABLE OF CONTENTS
Section
Title
Page
SELF DIAGNOSIS FUNCTION
................................
4
1. GENERAL
........................................................................
8
2. DISASSEMBLY
2-1.
Rear Cover Removal ................................................ 22
2-2.
Chassis Assy Removal ............................................. 22
2-3.
F Bracket Removal .................................................. 22
2-4.
Service Position ....................................................... 22
2-5.
Replacement of Parts ............................................... 23
2-5-1.
Replacement of Control Button .......................
23
2-5-2.
Replacement of Light Guide ............................
23
2-6.
Terminal Bracket Removal ...................................... 24
2-7.
Degauss Coil Removal ............................................. 24
2-8.
Picture Tube Removal .............................................. 24
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing .......................................................... 26
3-2.
Convergence ............................................................. 27
3-3.
Focus Adjustment .................................................... 29
3-4.
G2 (Screen) and White Balance Adjustments ......... 29
4. CIRCUIT ADJUSTMENT
4-1.
Adjustments with Commander ................................ 30
4-2.
Adjustment Method ................................................. 31
4-3.
Picture Quality Adjustments .................................... 36
4-4.
A Board Adjustment After IC003 (Memory)
Replacement ............................................................. 36
4-5.
Picture Distortion Adjustment ................................. 37
Section
Title
Page
5. DIAGRAMS
5-1.
Block Diagram ......................................................... 39
5-2.
Frame Schematic Diagram ...................................... 42
5-3
Circuit Boards Location .......................................... 44
5-4.
Schematic Diagrams and Printed Wiring Boards ... 45
(1)
Schematic Diagram of A (1/2) Board ...................... 47
(2)
Schematic Diagram of A (2/2) Board ...................... 50
(3)
Schematic Diagrams of C3 and C5 Boards ............. 56
(4)
Schematic Diagrams of VM1 and F Boards ........... 61
5-5.
Semiconductors ........................................................ 65
6. EXPLODED VIEW
6-1.
Chassis ..................................................................... 67
7. ELECTRICAL PARTS LIST
....................................... 71
Page of 63
Display

Click on the first or last page to see other KV-HF21M50 service manuals if exist.