LC-20B4E
SERVICE MANUAL
MODEL
LC-20B4E
SHARP CORPORATION
LCD COLOUR TELEVISION
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored
to its original condition and only parts identical to those specified should be used.
CONTENTS
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IMPORTANT SERVICE SAFETY PRECAUTION ........................................................................................ 2
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SPECIFICATIONS ........................................................................................................................................ 4
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OPERATION MANUAL ................................................................................................................................. 5
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DIMENSIONS ............................................................................................................................................... 7
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REMOVING OF MAJOR PARTS .................................................................................................................. 8
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ADJUSTING PROCEDURE OF EACH SECTION ..................................................................................... 12
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TROUBLE SHOOTING TABLE ................................................................................................................... 16
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CHASSIS LAYOUT ..................................................................................................................................... 22
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BLOCK DIAGRAM ...................................................................................................................................... 24
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OVERALL WIRING DIAGRAM ................................................................................................................... 26
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DESCRIPTION OF SCHEMATIC DIAGRAM ............................................................................................. 28
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SCHEMATIC DIAGRAM ............................................................................................................................. 29
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PRINTED WIRING BOARD ASSEMBLIES ................................................................................................54
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REPLACEMENT PARTS LIST .................................................................................................................... 66
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PACKING OF THE SET .............................................................................................................................. 79
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S33Y8LC-20B4E
Summary of Contents for Aquos LC-20B4E
Page 23: ...23 LC 20B4E 17 16 19 18 15 14 13 12 11 10 INVERTER A Unit INVERTER B Unit ...
Page 26: ...26 LC 20B4E 8 7 10 9 6 5 4 3 2 1 A B C D E F G H OVERALL WIRING DIAGRAM ...
Page 27: ...27 LC 20B4E 17 16 19 18 15 14 13 12 11 10 ...
Page 29: ...29 LC 20B4E 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM Ë R C LED and OPERATION Unit ...
Page 30: ...30 LC 20B4E 8 7 10 9 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 1 7 ...
Page 31: ...31 LC 20B4E 17 16 19 18 15 14 13 12 11 10 ...
Page 32: ...32 LC 20B4E 8 7 10 9 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 2 7 ...
Page 33: ...33 LC 20B4E 17 16 19 18 15 14 13 12 11 10 ...
Page 34: ...34 LC 20B4E 8 7 10 9 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 3 7 ...
Page 35: ...35 LC 20B4E 17 16 19 18 15 14 13 12 11 10 ...
Page 36: ...36 LC 20B4E 8 7 10 9 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 4 7 ...
Page 37: ...37 LC 20B4E 17 16 19 18 15 14 13 12 11 10 ...
Page 38: ...38 LC 20B4E 8 7 10 9 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 5 7 ...
Page 39: ...39 LC 20B4E 17 16 19 18 15 14 13 12 11 10 ...
Page 40: ...40 LC 20B4E 8 7 10 9 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 6 7 ...
Page 41: ...41 LC 20B4E 17 16 19 18 15 14 13 12 11 10 ...
Page 42: ...42 LC 20B4E 8 7 10 9 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 7 7 ...
Page 43: ...43 LC 20B4E 17 16 19 18 15 14 13 12 11 10 ...
Page 44: ...44 LC 20B4E 8 7 10 9 6 5 4 3 2 1 A B C D E F G H Ë TUNER Unit 1 4 ...
Page 45: ...45 LC 20B4E 17 16 19 18 15 14 13 12 11 10 ...
Page 46: ...46 LC 20B4E 8 7 10 9 6 5 4 3 2 1 A B C D E F G H Ë TUNER Unit 2 4 ...
Page 47: ...47 LC 20B4E 17 16 19 18 15 14 13 12 11 10 ...
Page 48: ...48 LC 20B4E 8 7 10 9 6 5 4 3 2 1 A B C D E F G H Ë TUNER Unit 3 4 ...
Page 49: ...49 LC 20B4E 17 16 19 18 15 14 13 12 11 10 ...
Page 50: ...50 LC 20B4E 8 7 10 9 6 5 4 3 2 1 A B C D E F G H Ë TUNER Unit 4 4 ...
Page 51: ...51 LC 20B4E 17 16 19 18 15 14 13 12 11 10 ...
Page 52: ...52 LC 20B4E 6 5 4 3 2 1 A B C D E F G H Ë INVERTER A Unit ...
Page 53: ...53 LC 20B4E 6 5 4 3 2 1 A B C D E F G H Ë INVERTER B Unit ...
Page 54: ...54 LC 20B4E 6 5 4 3 2 1 A B C D E F G H MAIN Unit Side A PRINTED WIRING BOARD ASSEMBLIES ...
Page 56: ...56 LC 20B4E 6 5 4 3 2 1 A B C D E F G H MAIN Unit Side B ...
Page 59: ...59 LC 20B4E 6 5 4 3 2 1 A B C D E F G H TUNER Unit Side A ...
Page 62: ...62 LC 20B4E 6 5 4 3 2 1 A B C D E F G H INVERTER A Unit Side A ...
Page 64: ...64 LC 20B4E 6 5 4 3 2 1 A B C D E F G H INVERTER B Unit Side A ...