KDE-V42A12U, KE-V42A10E (serv.man2) - Sony TV Service Manual (repair manual). Page 2

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AT2X
RM-EA001 / RM-ED001
TABLE OF CONTENTS
Section
Title
Page
Section
Title
Page
Caution ................................................................
3
Specifications ......................................................
4
Connectors ..........................................................
6
Self Diagnosis .....................................................
7
1. GENERAL ...................................................................
8
2. DISASSEMBLY
2-1.
Rear Cover Removal ...........................................
16
2-2.
Rear Cabinet Removal ........................................
16
2-3.
Stand Removal ....................................................
17
2-4.
Speaker Removal ................................................
17
2-5.
Main Frame Removal .........................................
18
2-6.
U Bracket Removal .............................................
18
2-7.
A3 Board Removal .............................................
19
2-8.
H6 Board Removal .............................................
19
2-9.
H7 Board Removal .............................................
20
2-10. H8 Board Removal .............................................
20
2-11. N Board Removal ...............................................
21
2-12. U Board Removal ...............................................
21
2-13. Service Position  .................................................
22
3. SET-UP ADJUSTMENTS
3-1.
How to enter Service Mode  ...............................
24
3-2.
Signal Level Adjustment ....................................
24
  3-2-1.  Check AD (CCPX case)
    Calibration Registration Items ........................
24
  3-2-2.  Y Signal AD Calibration
   of CCPX Decode .............................................
24
  3-2-3.  C Signal AD Calibration
   of CCPX Decode .............................................
24
  3-2-4.  Check AD (Component case)
    Calibration Registration Items ........................
25
  3-2-5.  Y Signal AD Calibration
   of Component Input .........................................
25
  3-2-6.  C Signal AD Calibration
   of Component Input .........................................
25
3-3.
White Balance Adjustment  .................................
25
  3-3-1.  White Balance of Colour
    Temperature “Cool” ........................................
25
  3-3-2.  White Balance of Colour
    Temperature “Neutral” ....................................
26
  3-3-3.  White Balance of Colour
    Temperature “Warm” ......................................
26
3-4.
Panel Replacement  .............................................
26
3-5.
Board Replacement  ............................................
26
  3-5-1.  P Board Replacement ......................................
26
  3-5-2.  BP Board Replacement ....................................
26
  3-5-3.  A3 Board Replacement ....................................
26
  3-5-4.  G2 Board Replacement ....................................
26
4. DIAGRAMS
4-1.
Block Diagrams (1) ............................................
31
Block Diagrams (2) ............................................
32
Block Diagrams (3) ............................................
33
Block Diagrams (4) ............................................
34
Block Diagrams (5) ............................................
35
4-2.
Circuit Board Location ........................................
35
4-3.
Schematic Diagrams and Printed Wiring
Boards .................................................................
35
A3 Board Schematic Diagram ............................
36
A3 Board Printed Wiring Board  .......................
40
U Board Schematic Diagram ..............................
42
U Board Printed Wiring Board   .........................
46
N Board Schematic Diagram(Digital only) ........
47
N Board Printed Wiring Board ...........................
54
H6 Board Schematic Diagram ............................
55
H6 Board Printed Wiring Board  .......................
56
H7 Board Schematic Diagram ............................
55
H7 Board Printed Wiring Board  .......................
56
H8 Board Schematic Diagram ............................
55
H8 Board Printed Wiring Board  .......................
56
4-4. Semiconductors ..................................................
57
5. EXPLODED  VIEWS
5-1.
Display ................................................................
58
5-2.
Rear Cover and Stand .........................................
60
6. ELECTRICAL  PARTS  LIST ..................................     61 
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY SHADING AND MARKED
  
 
 ON
THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE
PARTS LIST ARE CRITICAL FOR SAFE OPERATION. REPLACE
THESE COMPONENTS WITH SONY PARTS WHOSE PART
NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.
WARNING !!
AN ISOLATION TRANSFORMER SHOULD BE USED DURING
ANY SERVICE WORK TO AVOID POSSIBLE SHOCK HAZARD
DUE TO LIVE CHASSIS, THE CHASSIS OF THIS RECEIVER IS
DIRECTLY CONNECTED TO THE POWER LINE.
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