Sharp TU-GD10U-T User Manual

42
TU-GD10U-T
TU-45GAD/T
LC-45GX6U/D/T
TROUBLE SHOOTING TABLE (Continued)
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
YES
YES
NO
NO
NO
NO
NO
YES
NO
YES
<Signals>
No video output (1)<Composite video signal> input
External input in trouble <VIDEO1>
Is VIDEO1 selected in the input switching
menu screen?
Is composite video signal detection
functioning normally? Check between J1103
and pin (9) of IC1102.
Check between pin (4) of J1103 and pin (65)
of IC3800.
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 IC3800 (AV SWITCH) and the
peripheral circuits.
< Composite video signal input >
Is the signal input to pin (1)?
Is the signal input to each input terminal of
IC3800 (AV SWITCH)?
Is the signal input to each input terminal of
IC403 (MAIN VIDEO DEC)?
Are there digital video signal outputs at pins
(56)~(69) and (92)~(106) of
IC403?
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.)
< Composite video signal input > Are there MAIN VIDEO signal output at pin (60) of IC3800 and SUB VIDEO signal output at pin (56)?
< Composite video signal input > Is the main video signal input to pin (2) of IC402 and sub video signal input to pin (2) of IC501?
Check between IC3800 and IC402/IC501.
<MAIN VIDEO> <SUB VIDEO>
Check between IC402 and IC403.
Is the signal input to each input terminal of
IC502 (SUB VIDEO DEC)?
< Composite video signal input >
Is the signal input to pin (135)?
< Composite video signal input >
Is the signal input to pin (135)?
Check between IC501 and IC502.
Check IC403 (MAIN VIDEO DEC) and the
peripheral circuits.
Are there digital video signal outputs at pins
(56)~(69) and (92)~(106) of
IC502?
Check IC502 (SUB VIDEO CHROMA) and
the peripheral circuits.
Replace the main PWB, or check between
IC403/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.

Sharp TU-GD10U-T Specifications

General

Brand	Sharp
Model	TU-GD10U-T
Category	LCD TV
Language	English