YES
YES
YES
YES
YES
NO
NO
NO
YES
YES
NO
NO
NO
NO
NO
YES
YES
YES
NO
NO
YES
NO
<SUB VIDEO>
External input in trouble <VIDEO1>
Is VIDEO1 selected in the input switching
menu screen?
Is the signal input to each input terminal of
IC3801(color difference SWITCH)?
< D4 video signal input >
Is the signal input to pins (59), (61) and (63)
and pins (1), (2) and (3)?
< Component video signal input >
Is the signal input to pins (53), (55) and
(57)?
Select VIDEO1 and the input signal in the
input switching menu screen.
If signal name is gray and not selectable in
the menu screen
Check between each input pin of SC1103
and that of IC3801.
Check between pins (7), (14) and (20) of
J1103 and each input pin of IC3801.
External input in trouble <VIDEO2>
Is VIDEO2 selected in the input switching
menu screen?
Is the signal input to each input terminal of
IC3801(color difference SWITCH)?
< D4 video signal input >
Is the signal input to pins (5), (7) and (69)
and pins (11), (12) and (13)?
Select VIDEO2 and the input signal in the
input switching menu screen.
If signal name is gray and not selectable in
the menu screen
Is the D4 signal detection function normal?
Check between J1105 and pin (10) of
IC3801.
Check between each input pin of J1105
and that of IC3801.
<D4 video signal / Component video signal> input
Is the main video signal, sub video signal and pass video signal output from pins (46), (48) and (50) of IC3801, from pins (40)
, (42) and (44) and from pins (34),
(36) and (38) respectively?
< Main video system > Is the pass video signal input to pins (8), (11) and (13) of IC3703?
< Sub video system (525I) > Is the sub video signal input to pins (8), (10) and (13) of IC501?
<MAIN VIDEO>
Check between IC3703 and IC3700.
Is the signal input to each input terminal of
IC3700 (ADC)?
Is the signal input to pins (2), (6) and (14)?
Is the digital video signal output from each output
terminal (AD_***) of IC3700 (ADC)?
Check IC3700 (ADC) and the peripheral
circuits.
No video output (4)
Check IC3801 (color difference SWITCH)
and its peripheral circuits.
Check between IC3801 and IC3703 as well
as between IC3801 and IC501.
Is the signal input to each input terminal of
IC502 (SUB VIDEO DEC)?
<Sub-video signal input>
Is the signal input to pins (135), (153) and
(159)?
Check between IC501 and IC502.
Are there digital video signal outputs at pins
(56)~(69) and (92)~(106) of IC502?
Check IC502 and the peripheral circuits.
Is the D4/component signal detection
function normal? Check between SC1103
and pin (64) of IC3801 as well as between
J1103 and pin (30) of SC3802.
YES
NO
NO
YES
NO
YES
Is the digital video signal input to pins (51) to (100) and pins (1) to (10) of IC3201? (Check the signal terminals only.)
Is the digital video signal output from pins (39) to (49) of IC3201? (Check the signal terminals only.)
Replace the main PWB, or check between
IC3700/IC502 and IC3201.
Check IC3201 (LVDS Tx) and the
peripheral circuits.
Is the digital video signal output from pins (3) to (16) of SC3200? (Check the signal terminals only.)
Check between IC3201 and SC3200.
No abnormality is found up to main PWB. Check the TMDS PWB.
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