LC-42D43U
4 – 4
<Component video signal input> No video output (2)
No video output from external input <<INPUT-2>>
Select INPUT-2 and the input signal on the input switching menu
screen.
Is INPUT-2 selected on the input switching menu screen?
NO
When INPUT-2 cannot be selected since the characters INPUT-2
on the menu screen are gray.
YES
Is the video signal detection function normal?
Check between J502 and pin 76 of IC501.
Is video signal fed to pin 71 of IC501 (AV SWITCH)?
NO
Check between J502 and pin 71 of IC501.
YES
Is video signal sent to pin 60 of IC501?
NO
Check IC501 (AV SWITCH) and peripheral circuits.
YES
Is video signal sent to pin 2 of TERMINAL_UNIT connector
(FC_SC501)?
NO
Check between IC501 and SC501. (Q501, Q502, etc.)
YES
Is video signal fed to pin 2 of MAIN_UNIT connector
(FC_SC1101)?
NO
Check the board-to-board cable “FC”.
YES
Is video signal fed to pin K25 of IC8101 (Broadcom) via L.P.F.
composed of Q2202 and Q2210?
NO
Check between IC501 and IC3301. (Q2202, Q2210, etc.)
YES
Are digital video (LVDS) signals sent from pins 37-42 and 45-48
of IC2602?
NO
Check IC2602 and peripheral circuits.
Are digital video (COMOS) signal sent from IC8101 (DVODATA 0
~ 23, DVOCLKO, DVODE, DVOHSYNC, DVOVSYNC)?
NO
Check IC8101 and peripheral circuits.
YES
Check LCD_CONTROL PWB.
Summary of Contents for Aquos LC-42D~43U
Page 5: ...LC 42D43U 1 1 LC 42D43U Service Manual CHAPTER 1 OPERATION MANUAL 1 SPECIFICATIONS ...
Page 6: ...LC 42D43U 1 2 2 OPERATION MANUAL ...
Page 7: ...LC 42D43U 1 3 ...
Page 8: ...LC 42D43U 1 4 ...
Page 9: ...LC 42D43U 1 5 ...
Page 10: ...LC 42D43U 1 6 ...
Page 11: ...LC 42D43U 1 7 ...
Page 12: ...LC 42D43U 1 8 3 DIMENSIONS ...
Page 33: ...LC 42D43U 3 2 30 80 80 1 CN2 IC1 7 QCNW G417WJQZ 14 12 CN7502 LA2 CN7501 LA1 ...
Page 36: ...LC 42D43U 3 5 MEMO ...
Page 38: ...LC 42D43U 4 2 2 SCHEMATIC DIAGRAM 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 1 ...
Page 39: ...LC 42D43U 4 3 11 13 12 14 15 16 18 19 17 ...
Page 40: ...LC 42D43U 4 4 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 2 ...
Page 41: ...LC 42D43U 4 5 11 13 12 14 15 16 18 19 17 ...
Page 42: ...LC 42D43U 4 6 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 3 ...
Page 43: ...LC 42D43U 4 7 11 13 12 14 15 16 18 19 17 ...
Page 44: ...LC 42D43U 4 8 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 4 ...
Page 45: ...LC 42D43U 4 9 11 13 12 14 15 16 18 19 17 ...
Page 46: ...LC 42D43U 4 10 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 5 ...
Page 47: ...LC 42D43U 4 11 11 13 12 14 15 16 18 19 17 ...
Page 48: ...LC 42D43U 4 12 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 6 ...
Page 49: ...LC 42D43U 4 13 11 13 12 14 15 16 18 19 17 ...
Page 50: ...LC 42D43U 4 14 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 7 ...
Page 51: ...LC 42D43U 4 15 11 13 12 14 15 16 18 19 17 ...
Page 52: ...LC 42D43U 4 16 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 8 ...
Page 53: ...LC 42D43U 4 17 11 13 12 14 15 16 18 19 17 ...
Page 54: ...LC 42D43U 4 18 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 9 ...
Page 55: ...LC 42D43U 4 19 11 13 12 14 15 16 18 19 17 ...
Page 56: ...LC 42D43U 4 20 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 10 ...
Page 57: ...LC 42D43U 4 21 11 13 12 14 15 16 18 19 17 ...
Page 58: ...LC 42D43U 4 22 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 11 ...
Page 59: ...LC 42D43U 4 23 11 13 12 14 15 16 18 19 17 ...
Page 60: ...LC 42D43U 4 24 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 12 ...
Page 61: ...LC 42D43U 4 25 11 13 12 14 15 16 18 19 17 ...
Page 62: ...LC 42D43U 4 26 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 13 ...
Page 63: ...LC 42D43U 4 27 11 13 12 14 15 16 18 19 17 ...
Page 64: ...LC 42D43U 4 28 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 14 ...
Page 65: ...LC 42D43U 4 29 11 13 12 14 15 16 18 19 17 ...
Page 66: ...LC 42D43U 4 30 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 15 ...
Page 67: ...LC 42D43U 4 31 11 13 12 14 15 16 18 19 17 ...
Page 68: ...LC 42D43U 4 32 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 16 ...
Page 69: ...LC 42D43U 4 33 11 13 12 14 15 16 18 19 17 ...
Page 70: ...LC 42D43U 4 34 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 17 ...
Page 71: ...LC 42D43U 4 35 11 13 12 14 15 16 18 19 17 ...
Page 72: ...LC 42D43U 4 36 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 18 ...
Page 73: ...LC 42D43U 4 37 11 13 12 14 15 16 18 19 17 ...
Page 74: ...LC 42D43U 4 38 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 19 ...
Page 75: ...LC 42D43U 4 39 11 13 12 14 15 16 18 19 17 ...
Page 76: ...LC 42D43U 4 40 AV TERMINAL Unit 1 2 ...
Page 77: ...LC 42D43U 4 41 ...
Page 78: ...LC 42D43U 4 42 AV TERMINAL Unit 2 2 ...
Page 79: ...LC 42D43U 4 43 ...
Page 80: ...LC 42D43U 4 44 MEMO ...
Page 104: ...LC 42D43U 24 7 PACKING PARTS S5 S4 S4 S3 S1 S2 S4 S4 S7 S6 ...