LC-42BX5H/M/X
6 – 2
With <Video, S-video> signal input
No video onscreen (1)
No external input video onscreen <INPUT 1>
Is INPUT 1 selected on the input select menu screen?
NO
Select INPUT 1 on the input select menu screen to pick up the
right input signal.
YES
Is there the video signal input at pin (7) of IC3401 (AV SWITCH)?
NO
Check the line between pin (8) of J3404 and pin (7) of IC3401.
YES
<Video signal> Is there the video signal output at pin (37) of
IC3401?
NO
Check IC3401 and its peripheral circuits.
<S-video signal> Are there the Y and C signal outputs at pins
(39) and (41) of IC3401, respectively?
YES
<Video signal> Is there the video signal input at U2 pin of IC801?
NO
<Video signal> Check Q3404 and its peripheral circuits.
<S-video signal> Are there the Y and C signal inputs at P1 pin
and K1 pin of IC801, respectively?
<S-video signal> Check Q3407 and its peripheral circuits for the
C signal, and Q3408 and its peripheral circuits for the Y signal.
YES
Are signals output from the pins P22, P23, R22, R23, T22, T23,
U22, U23, V22, and V23 of IC801 normally?
NO
Check IC801 and its peripheral circuits.
YES
Check LVDS cable, LCD controller (incl. panel) and their periph-
eral circuits.
Summary of Contents for Aquos LC-42BX5H
Page 5: ...LC 42BX5H M X 1 2 M E M O ...
Page 25: ...LC 42BX5H M X 5 12 M E M O ...
Page 40: ...LC 42BX5H M X 7 3 2 OVERALL WIRING DIAGRAM 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J ...
Page 41: ...LC 42BX5H M X 7 4 10 11 12 13 14 15 16 17 18 19 ...
Page 42: ...LC 42BX5H M X 7 5 M E M O ...
Page 45: ...LC 42BX5H M X 8 3 10 11 12 13 14 15 16 17 18 19 ...
Page 46: ...LC 42BX5H M X 8 4 2 RED R C Unit 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J ...
Page 47: ...LC 42BX5H M X 8 5 10 11 12 13 14 15 16 17 18 19 ...
Page 48: ...LC 42BX5H M X 8 6 3 OPERATION Unit 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J ...
Page 49: ...LC 42BX5H M X 8 7 10 11 12 13 14 15 16 17 18 19 ...
Page 50: ...LC 42BX5H M X 8 8 4 MAIN Unit 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J ...
Page 51: ...LC 42BX5H M X 8 9 10 11 12 13 14 15 16 17 18 19 ...
Page 54: ...LC 42BX5H M X 8 12 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J ...
Page 55: ...LC 42BX5H M X 8 13 10 11 12 13 14 15 16 17 18 19 ...
Page 56: ...LC 42BX5H M X 8 14 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J ...
Page 57: ...LC 42BX5H M X 8 15 10 11 12 13 14 15 16 17 18 19 ...
Page 58: ...LC 42BX5H M X 8 16 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J ...
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Page 82: ...LC 42BX5H M X 8 40 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J ...
Page 83: ...LC 42BX5H M X 8 41 10 11 12 13 14 15 16 17 18 19 ...
Page 84: ...LC 42BX5H M X 8 42 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J ...
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Page 118: ...LC 42BX5H M X 9 5 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J MAIN Unit Chip Parts Side A ...
Page 119: ...LC 42BX5H M X 9 6 10 11 12 13 14 15 16 17 18 19 ...
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Page 128: ...LC 42BX5H M X 9 15 1 2 3 4 5 6 7 8 9 10 A B C D E F G H I J SUB Unit Side B ...
Page 129: ...LC 42BX5H M X 9 16 10 11 12 13 14 15 16 17 18 19 ...
Page 152: ...LC 42BX5H M X 22 10 PACKING PARTS S6 S2 S11 S1 S5 S10 S10 S7 S8 S4 S3 S9 ...