37
LC-26GA5H/M/X
TROUBLE SHOOTING TABLE
(Continued)
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
Backlight failure
Whitish screen overall (LCD current)
Does the inverter oscillation circuit of power unit function?
Is the fuse (F705) of power unit blown out?
Check the fluorescent lamps, connectors and their peripheral
Call the adjustment process menu, select PATTERN 1 and set
"1" to PATTERN 3. Is the gradation pattern as specified (too
whitish or too darkish)?
Disconnect the FPCs from SC4651 and SC4652 (to protect the
panel against damages).
Check the voltages that are supplied to the panel.
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
Pin 9
Pin 10
Pin 11
Pin 30
Pin 64
Pin 63
Pin 62
Pin 61
Pin 60
Pin 59
Pin 58
Pin 57
Pin 56
Pin 76
Pin 78
VH0
VH31
VH63
VH95
VH127
VH159
VH191
VH247
VH255
VLS
VSH
VL0
VL31
VL63
VL95
VL127
VL159
VL191
VL247
VL255
VGH
VGL
26" models
8.36
10.27
10.61
10.89
11.15
11.5
11.93
14.27
15.1
15.4
3.3
7.4
5.48
5.07
4.76
4.44
4.04
3.55
0.98
0.2
32V-15V
-6V
Check the above step-up circuit first. Do the circuits on inverter
GND PWB and LCD control PWB function?
Check the on-PWB circuits and the harness.
YES
Is the pulse power supplied to the step-up circuit on inverter
PWB?
Check the connectors (PG) that connect the power PWB and
Check the video signal circuit.
Check the inverter oscillation circuit.
Check the circuits that follow the blown-out fuse.
NO
NO
Summary of Contents for AQUOS LC-26GA5H
Page 10: ...10 LC 26GA5H M X DIMENSIONS 100 100 151 99 517 568 321 663 556 355 504 52 278 64 Unit mm ...
Page 46: ...46 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA5H M X OVERALL WIRING DIAGRAM CHASSIS LAYOUT ...
Page 47: ...47 17 16 19 18 15 14 13 12 11 10 LC 26GA5H M X ...
Page 48: ...48 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA5H M X SYSTEM BLOCK DIAGRAM ...
Page 49: ...49 17 16 19 18 15 14 13 12 11 10 LC 26GA5H M X ...
Page 50: ...50 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA5H M X MAIN BLOCK DIAGRAM ...
Page 51: ...51 17 16 19 18 15 14 13 12 11 10 LC 26GA5H M X ...
Page 52: ...52 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA5H M X CPU BLOCK DIAGRAM 1 2 ...
Page 53: ...53 17 16 19 18 15 14 13 12 11 10 LC 26GA5H M X ...
Page 56: ...56 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA5H M X AV BLOCK DIAGRAM ...
Page 57: ...57 17 16 19 18 15 14 13 12 11 10 LC 26GA5H M X ...
Page 58: ...58 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA5H M X DISPLAY BLOCK DIAGRAM ...
Page 59: ...59 17 16 19 18 15 14 13 12 11 10 LC 26GA5H M X ...
Page 60: ...60 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA5H M X POWER BLOCK DIAGRAM ...
Page 61: ...61 17 16 19 18 15 14 13 12 11 10 LC 26GA5H M X ...
Page 70: ...70 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA5H M X MAIN Unit Side A ...
Page 71: ...71 17 16 19 18 15 14 13 12 11 10 LC 26GA5H M X ...
Page 74: ...74 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA5H M X MAIN Unit Side B ...
Page 75: ...75 17 16 19 18 15 14 13 12 11 10 LC 26GA5H M X ...
Page 78: ...78 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA5H M X AV Unit Side A ...
Page 79: ...79 17 16 19 18 15 14 13 12 11 10 LC 26GA5H M X ...
Page 82: ...82 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA5H M X POWER Unit Side A ...
Page 83: ...83 17 16 19 18 15 14 13 12 11 10 LC 26GA5H M X ...
Page 84: ...84 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA5H M X POWER Unit Side B ...
Page 85: ...85 17 16 19 18 15 14 13 12 11 10 LC 26GA5H M X ...
Page 87: ...87 17 16 19 18 15 14 13 12 11 10 LC 26GA5H M X ...
Page 128: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËAV Unit 1 6 D3 D4 ...
Page 131: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËAV Unit 3 6 D9 D10 ...
Page 132: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËAV Unit 4 6 D11 D12 ...
Page 133: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËAV Unit 5 6 D13 D14 ...
Page 136: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËKEY Unit D19 D20 ...
Page 137: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËCPU Unit 1 5 D21 D22 ...
Page 138: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËCPU Unit 2 5 D23 D24 ...
Page 139: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËCPU Unit 3 5 D25 D26 ...
Page 140: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËCPU Unit 4 5 D27 D28 ...
Page 141: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËCPU Unit 5 5 D29 D30 ...
Page 167: ...6 5 4 3 2 1 A B C D E F G H ËR C LED Unit D81 ...