Read Sony KLV-21SR2 (serv.man2) Service Manual online
KLV-21SR2 (UC) 4
TABLE OF CONTENTS
1. DISASSEMBLY ....................................... 1-1
1-1. REAR COVER AND STAND ASSY REMOVAL
1-1
1-2. REAR CABINET ASSY REMOVAL .................... 1-1
1-3. H1 BOARD REMOVAL ....................................... 1-2
1-4. D2 BOARD REMOVAL ....................................... 1-2
1-5. U1 BOARD REMOVAL ....................................... 1-3
1-6. G BOARD REMOVAL ......................................... 1-3
1-7. A AND TU BOARDS REMOVAL ........................ 1-4
1-8. B BOARD REMOVAL ......................................... 1-4
1-9. H3 BOARD REMOVAL ....................................... 1-5
1-10. H4 BOARD REMOVAL ..................................... 1-5
1-11. H2 BOARD REMOVAL ..................................... 1-6
1-12. LCD MODULE REMOVAL ................................ 1-6
2. ADJUSTMENTS .................................... 2-1
2-1. Adjustment of signal level. .................................. 2-1
2-1-1. Check AD calibration registration items. ........... 2-1
2-1-2. Y signal AD calibration of TV/VIDEO input. .... 2-1
2-1-3. C signal AD calibration of TV/VIDEO input. .... 2-1
2-1-4. Y signal AD calibration of
COMPONENT input. .............. 2-2
2-1-5. C signal AD calibration of
COMPONENT input. .............. 2-2
2-2. White Balance Adjustment ................................. 2-2
2-2-1. White Balance of color temperature “cool” ........ 2-2
2-2-2. White Balance Adjustment of
color temperature “natural” .... 2-3
2-2-3. White Balance Adjustment of
color temperature “warm” ....... 2-3
3. DIAGRAMS ............................................ 3-1
3-1. BLOCK DIAGRAMS ........................................... 3-1
3-2. FRAME DIAGRAM ............................................. 3-6
3-3. CIRCUIT BOARDS LOCATION ......................... 3-7
3-4. CHEMATIC DIAGRAMS AND PRINTED
WIRING BOARDS ............................................. 3-7
(1) Schematic Diagrams of A Board .................... 3-8
(2) Schematic Diagrams of B Board .................... 3-13
(3) Schematic Diagrams of D2 Board .................. 3-22
(4) Schematic Diagram of G Board ...................... 3-24
(5) Schematic Diagram of H1 and H2 Boards ..... 3-26
(6) Schematic Diagram of H3 and H4 Boards ..... 3-27
(7) Schematic Diagram of TU Board ................... 3-28
(8) Schematic Diagram of U1 Board .................... 3-29
3-5. SEMICONDUCTORS ......................................... 3-30
4. EXPLODED VIEWS ............................... 4-1
4-1. CHASSIS .............................................................
4-2
4-2. PACKING MATERIALS .......................................
4-4
5. ELECTRICAL PARTS LIST .................... 5-1
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