Read Sony KP-EF41ME3 / KP-EF41MN3 / KP-EF41SN3 / KP-EF48MN3 / KP-EF48SN3 Service Manual online
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KP-EF41ME3/MN3/SN3, EF48MN3/SN3
RM-871
1. GENERAL
.................................................................
4
2. DISASSEMBLY
2-1.
Rear Board Removal .........................................
19
2-2.
Main Bracket Section Removal ........................
19
2-3.
Service Position .................................................
20
2-4.
H1 Board, H2 Board and Resistor
(High Voltage) Removal ...................................
21
2-5.
Beznet Section Removal ...................................
22
2-6.
G Board Removal ...............................................
23
2-7.
P1 Board and V2 Board Removal ......................
23
2-8.
UG Board, AG Board and S Board Removal ....
23
2-9.
Chassis Block Removal ......................................
24
(1)
H1, H2 Boards and Resistor Removal ..............
24
(2)
Main Bracket Removal ......................................
24
(3)
Chassis Block Removal .....................................
25
2-10. High-Voltage Cable Installation and Removal ..
26
2-11. Mechasel Assy Removal ....................................
26
3. SET-UP ADJUSTMENTS
3-1.
Screen Voltage Adjustment
(Rough Alignment) ...........................................
27
3-2.
Focus Adjustment ..............................................
27
3-3.
Screen (G2) Adjustment ....................................
27
3-4.
Deflection Yoke Tilt Adjustment ......................
27
3-5.
2-Pole Magnet Adjustment ................................
28
3-6.
4-Pole Magnet Adjustment ................................
28
3-7.
Defocus Adjustment (Blue) ...............................
28
3-8.
Green and Red Focus Adjustment .....................
28
3-8-1. Green and Red Lens Focus Adjustment .......
28
3-8-2. Green and Red Electrical Focus
Adjustment ....................................................
28
4. SAFETY RELATED ADJUSTMENT
4-1.
HV Hold Down Adjustment .............................
29
5. CIRCUIT ADJUSTMENTS
5-1.
Adjustments with Commander .........................
30
5-2.
Adjustment Method ...........................................
31
5-3.
Adjustment After IC1001 and IC1702
Replacement .......................................................
31
5-4.
Registration (Convergence)Adjustment
Method ................................................................
38
5-5.
Auto Convergence Adjustment ..........................
43
5-6.
White Balance Adjustment ................................
44
5-7.
Text Position Adjustment ...................................
44
5-8.
Picture Quality Adjustments .............................
44
TABLE OF CONTENTS
6. DIAGRAMS
6-1.
Block Diagrams ..................................................
45
6-2.
Frame Schematic Diagram .................................
54
6-3.
Circuit Boards Location .....................................
58
6-4.
Schematic Diagrams and Printed Wiring
Boards .................................................................
59
(1)
Schematic Diagram of AG (1/3) Board .............
63
(2)
Schematic Diagram of AG (2/3) Board ............
67
(3)
Schematic Diagrams of AG (3/3), CB, CG and
CR Boards .........................................................
71
(4)
Schematic Diagram of E Board .........................
75
(5)
Schematic Diagram of D Board ........................
85
(6)
Schematic Diagrams of P1 and V2 Boards .......
89
(7)
Schematic Diagrams of H1, H2, S,
ZG and ZR Boards .............................................
97
(8)
Schematic Diagrams of G and UG Boards ........ 100
6-5.
Semiconductors ................................................. 105
7. EXPLODED VIEWS
7-1.
Screen and Cover Block (KP-EF41) ................. 107
7-2.
Cabinet and Panel Block (KP-EF41) ................ 108
7-3.
Chassis and Picture Tube Block (KP-EF41) ..... 109
7-4.
Screen and Cover Block (KP-EF48) .................. 110
7-5.
Cabinet and Panel Block (KP-EF48) ................. 111
7-6.
Chassis and Picture Tube Block (KP-EF48) ..... 112
8. ELECTRICAL PARTS LIST
............................ 113
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