Sony Bravia KDF-E42A12U, Service Manual

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KDF-E42/50A12U
RM-ED002
TABLE OF CONTENTS
Section Title Page Section Title Page
Caution ................................................................ 3
Specifications ...................................................... 4
Connectors .......................................................... 5
1. SELF DIAGNOSIS FUNCTION
LE-4B Self Diagnostic Software ........................ 6
2. GENERAL ................................................................... 8
3. DISASSEMBLY
3-1. Rear Cover Removal .......................................... 22
3-2. Pillar Removal .................................................... 22
3-3. Main Bracket Cover Removal ............................ 22
3-4. Main Bracket Removal ...................................... 22
3-5. Service Position ................................................. 23
3-6. N, JB, AG Boards ............................................. 23
3-7. Power Block Removal ........................................ 23
3-8. Optical Unit ......................................................... 23
3-9. C Board Removal ................................................ 24
3-10. Screen, Mirror Block Assembly Removal .......... 24
3-11. Mirror Cover Block Assembly Removal ............ 25
3-12. Contrast Screen, Diffusion Plate Removal ......... 25
3-13. Mirror Removal .................................................. 26
3-14. H3 Removal ........................................................ 26
3-15. Speaker Removal ................................................ 26
4. SET-UP ADJUSTMENTS
4-1. Signal Adjustment .............................................. 27
4-1-1. PAL Auto adjustment (CVBS) ...................... 27
4-1-2. PAL Auto adjustment (RGB) ......................... 27
4-1-3. SECAM Auto adjustment (CVBS) ................ 27
4-2. White Balance Adjustment .................................. 27
4-2-1. White Balance Adjustment (H/L) ................... 27
4-2-2. White Balance Adjustment (C/O) ................... 28
4-2-3. SECAM White Balance Adjustment (H/L) .... 28
4-2-4. SECAM White Balance Adjustment (C/O) .... 29
4-3. Test Test Mode ................................................... 29
5. DIAGRAMS
5-1. Block Diagram (1) .............................................. 30
Block Diagram (2) .............................................. 31
Block Diagram (3) .............................................. 32
Block Diagram (4) .............................................. 33
Block Diagram (5) .............................................. 34
Block Diagram (6) .............................................. 35
Block Diagram (7) .............................................. 36
Block Diagram (8) .............................................. 37
5-2. Circuit Boards Location ...................................... 37
5-3. Schematic Diagrams and Printed Wiring
Boards ................................................................. 37
AG Board Schematic Diagram ........................... 38
AG Printed Wiring Board ................................. 41
C Board Schematic Diagram ............................... 43
C Printed Wiring Board .................................... 47
JB Board Schematic Diagram ............................. 48
JB Printed Wiring Board .................................. 57
H1 Schematic Diagram ....................................... 59
H1 Printed Wiring Board .................................. 60
H2 Board Schematic Diagram ............................ 59
H2 Printed Wiring Board .................................. 60
H3 Board Schematic Diagram ............................ 59
H3 Printed Wiring Board .................................. 60
T1 Board Schematic Diagram ........................... 59
T1 Printed Wiring Board .................................. 60
T2 Board Schematic Diagram ........................... 59
T2 Printed Wiring Board .................................. 60
N Board Schematic Diagram .............................. 61
N Printed Wiring Board .................................... 68
5-4. Semiconductors .................................................. 69
6. EXPLODED VIEWS
6-1. Screen Mirror Block, Covers ........................... 71
6-2. Chassis/Bottom Block Assembly ....................... 72
6-3. Lamp Duct Assembly, Optics Unit Block .......... 73
7. ELECTRICAL PARTS LIST
.................................. 74
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.