KDE-50XS955 (UC) 5
TABLE OF CONTENTS
1. DISASSEMBLY ............................................ 1-1
1-1. SERVICE POSITION ........................................ 1-1
1-1-1. PANELS AND CAP REMOVAL ................. 1-1
1-1-2. WOOFER BLOCK REMOVAL ................... 1-1
1-1-3. REAR COVER ASSY REMOVAL .............. 1-1
1-2. STAND REMOVAL .......................................... 1-2
1-3. REAR COVER REMOVAL .............................. 1-2
1-4. QU BOARD REMOVAL .................................. 1-3
1-5. QM AND QT BOARDS REMOVAL ............... 1-3
1-6. A2FN, DE1, DIC3 AND M1U
BOARDS REMOVAL ....................................... 1-4
1-7. A1U, H2, P AND QH BOARDS REMOVAL .. 1-4
1-8. H1U BOARDS REMOVAL .............................. 1-5
1-9. F AND K BOARDS REMOVAL ...................... 1-5
1-10. PLASMA DISPLAY PANEL
ASSY REMOVAL ............................................. 1-6
1-11. H3 AND H4 BOARDS REMOVAL ................. 1-7
1-12. H5 BOARD REMOVAL ................................... 1-7
2. ADJUSTMENTS
and TROUBLESHOOTING .......................... 2-1
2-1. WHITE BALANCE ADJUSTMENT ................ 2-1
2-1-1. Measurement equipment ................................ 2-1
2-1-2. Measuring procedure ..................................... 2-1
2-1-3. Service mode .................................................. 2-1
2-2. TROUBLESHOOTING ..................................... 2-2
3. DIAGRAMS ................................................... 3-1
3-1. BLOCK DIAGRAMS ........................................ 3-1
(1) A1U AND H2 BOARDS ............................... 3-1
(2) A2NU (1/2) AND J1NU BOARDS ............... 3-2
(3) A2NU (2/2), H4 AND J2NU BOARDS........ 3-3
(4) DE1 BOARD ................................................. 3-4
(5) DIC3 BOARD ................................................ 3-5
(6) F AND G1 BOARDS ..................................... 3-6
(7) G2N BOARD ................................................. 3-7
(8) K BOARD ...................................................... 3-8
(9) H1U, H3, H5 AND M1U BOARDS ............. 3-9
(10) P BOARD ....................................................... 3-10
(11) QH AND QM BOARDS ............................... 3-11
(12) QT AND QU BOARDS ................................. 3-12
3-2. FRAME DIAGRAMS ........................................ 3-13
3-3. CIRCUIT BOARDS LOCATION ..................... 3-14
3-4. SCHEMATIC DIAGRAMS AND
PRINTED WIRING BOARDS ........................ 3-14
(1) Schematic Diagrams of A1U Board .............. 3-15
(2) Schematic Diagrams of A2NU Board ........... 3-19
(3) Schematic Diagrams of DE1 Board .............. 3-22
(4) Schematic Diagrams of DIC3 Board ............. 3-27
(5) Schematic Diagram of F Board ..................... 3-34
(6) Schematic Diagrams of G1 Board ................. 3-35
(7) Schematic Diagrams of G2N Board .............. 3-38
(8) Schematic Diagram of H1U and H2 Boards
........................................................................ 3-41
(9) Schematic Diagram of H3 and H4 Boards
........................................................................ 3-42
(10) Schematic Diagram of H5 Board .................. 3-43
(11) Schematic Diagram of J1NU and J2NU Boards
........................................................................ 3-44
(12) Schematic Diagram of K Board .................... 3-45
(13) Schematic Diagrams of M1U Board ............. 3-47
(14) Schematic Diagram of P Board ..................... 3-53
(15) Schematic Diagram of QH Board.................. 3-55
(16) Schematic Diagrams of QM Board ............... 3-56
(17) Schematic Diagrams of QT Board ................ 3-61
(18) Schematic Diagram of QU Board.................. 3-64
3-5. SEMICONDUCTORS ....................................... 3-65
4. EXPLODED VIEWS ...................................... 4-1
4-1. REAR COVER ASSY AND STAND ............... 4-2
4-2. CHASSIS-1 ........................................................ 4-4
4-3. CHASSIS-2 ........................................................ 4-5
4-4. CHASSIS-3 ........................................................ 4-6
4-5. CHASSIS-4 ........................................................ 4-7
4-6. PACKING MATERIALS .................................. 4-8
5. ELECTRICAL PARTS LIST ........................ 5-1
