KLV-B15G10, KLV-B20G10 - Sony TV Service Manual (repair manual). Page 3

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KLV-B15G10/B20G10
RM-Y1108
TABLE OF CONTENTS
Section
Title
Page
SAFETY CHECK-OUT ...............................................
2
1. DISASSEMBLY .....................................................
4
KLV-B15G10 ........................................................................... 4
1-1.
Stand Assy Removal .................................................... 4
1-2.
Cabinet Rear Removal ................................................. 4
1-3.
A Board Removal ........................................................ 4
1-4.
B Board Removal ......................................................... 4
1-5.
H1 Board Removal ...................................................... 4
1-6.
H2 Board Removal ...................................................... 4
1-7.
H4 Board Removal ...................................................... 5
1-8.
Speaker Removal ......................................................... 5
1-9.
LCD Panel Removal .................................................... 5
KLV-B20G10 ........................................................................... 6
1-1.
Stand Assy Removal .................................................... 6
1-2.
Cabinet Rear Removal ................................................. 6
1-3.
A Board Removal ........................................................ 6
1-4.
B Board Removal ......................................................... 6
1-5.
D Board Removal ........................................................ 6
1-6.
H1 Board Removal ...................................................... 6
1-7.
H2 Board Removal ...................................................... 7
1-8.
H4 Board Removal ...................................................... 7
1-9.
Speaker Removal ......................................................... 7
1-10. LCD Panel Removal .................................................... 7
2. ADJUSTMENTS ....................................................
8
2-1.
Aging ............................................................................ 8
2-2.
Auto Adjustment of Signal Level ................................ 8
2-1-1. PAL Auto Adjustment (CVBS) ......................... 8
2-2-2. PAL Auto Adjustment (RGB) ........................... 8
2-2-3. SECAM Auto Adjustment (CVBS) .................. 8
2-3.
Entering Test/TT Mode ............................................... 8
2-4.
PAL White Balance Adjustment (Highlight) .............. 8
2-5.
PAL White Balance Adjustment (Cutoff) ................... 9
2-6.
SECAM White Balance Adjustment (Highlight) ........ 9
2-7.
SECAM White Balance Adjustment (Cutoff) ............. 9
3. DIAGRAMS ..........................................................
10
3-1.
Block Diagrams ......................................................... 10
(1) A (1/2) and H2 Boards ......................................... 10
(2) A (2/2) Board ....................................................... 12
(3) B and H4 Boards .................................................. 14
(4) D Board ................................................................ 16
3-2.
Circuit Boards Location ............................................ 18
3-3.
Schematic Diagrams Information .............................. 19
3-2-1. A Board – (Block 001) .................................... 20
3-2-2. A Board – (Block 002) .................................... 22
3-2-3. A Board – (Block 003) .................................... 24
3-2-4. A Board – (Block 004) .................................... 26
3-2-5. B Board – (Block 001) .................................... 28
3-2-6. B Board – (Block 002) .................................... 30
3-2-7. B Board – (Block 003) .................................... 32
3-2-8. B Board – (Block 004) .................................... 34
3-2-9. B Board – (Block 005) .................................... 35
3-2-10. B Board – (Block 006) .................................. 37
3-2-11. D Board – (Block 001) (KLV-B20G10) ....... 39
3-2-12. D Board – (Block 002) (KLV-B20G10) ....... 41
3-2-13. D Board – (Block 003) (KLV-B20G10) ....... 43
3-2-14. D Board – (Block 004) (KLV-B20G10) ....... 45
3-2-15. H1 Board Schematic Diagram ...................... 47
3-2-16. H2 Board Schematic Diagram ...................... 49
3-2-17. H4 Board Schematic Diagram ...................... 50
3-4.
Voltage Measurements and Waveforms .................... 51
3-5.
Printed Wiring Boards ............................................... 60
3-6.
Semiconductors .......................................................... 67
4. EXPLODED VIEWS
KLV-B15G10 ......................................................................... 69
4-1.
Cabinet Rear Assy and Stand Assy ........................... 69
4-2.
Chassis (1) .................................................................. 70
4-3.
Chassis (2) .................................................................. 71
KLV-B20G10 ......................................................................... 72
4-1.
Cabinet Rear Assy and Stand Assy ........................... 72
4-2.
Chassis (1) .................................................................. 73
4-3.
Chassis (2) .................................................................. 74
5.  ELECTRICAL PARTS LIST ...............................
75
OPERATING INSTRUCTIONS
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