4-19
4. Troubleshooting
4-1-8. No Video (Component)
Symptom Audio is normal but no picture is displayed on the screen.-
Major
checkpoints
Check the Component source
Check the chelsea.
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
-
-
-
Diagnostics
Does the component data appear at
TP - 5100, 5024, 5025
(Comp1 / Y, Pb, Pr)?
No
Yes
Power indicator LED is off.
Lamp(Backlight) on, no video?
Yes
Check the component source and
check the connection of
component cables(Y,Pb,Pr)?
No
Input the component
source properly.
Yes
Check CN5003
Change the Main Assy
Yes
Check the LVDS cable?
Check the T-Con B’d?
Replace the LCD panel?
Please, Contact Tech support
No
Does the digital data appear at
Pin #19,20,34,35 (LVDS Data clk)
of LVDS connector?
No
Check IC4010 (Saturn4)
Change the Main Assy
2
No
Check a set
in the ‘Stand-by mode’.
5
Caution Make sure to disconnect the power before working on the IP board.
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