LC-45GD1E (serv.man29). Trouble shooting table - Sharp TV Service Manual (repair manual). Page 8

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55
TU-45GD1E
LC-45GD1E
TROUBLE SHOOTING TABLE
 (Continued)
No picture (4)
Set-up Confirmation :
1) 
Are the input terminal in the backside of 
A
V
C-System and "INPUT
 SOURCE" of the remote controller set up correctly? ···See th
e Operation Manual and set up "INPUT
 SOURCE" correctly
.
2) Is "Audio Only" in MENU-Option set "Of
f"? ···Set it "Of
f".
Is the VIDEO signal output to DISPLA
Y
-
OUTPUT1 (SC3102)?
No video output to the Monitor
.
<On input of the tuner/external source>
Is the connection of the System cable 
(WHITE) normal?
Display Side : Is the VIDEO signal input to the 
DVI-Connector to DISPLA
Y
 OUTPUT1 (SC2201) ?
See the term of "No picture" in Display-
T
roubleshooting.
YES
YES
NO
NO
YES
YES
Confirm IC3300/IC802 on and before the 
circuit of IC3201.
And see "No picture (1)/(2)" in 
T
roubleshooting.
In the 
TMDS PWB : Is the VIDEO signal 
coming to the L
V
-Connector?
NO
YES
YES
In the 
TMDS PWB : Check IC3101/IC3105 
and peripheral circuits.
In the MAIN PWB : Check IC3201 and 
peripheral circuits.
In the MAIN PWB : Is the VIDEO signal input 
to IC3201 (TMDS_TX)?
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