4-1-7. No Video (Component)
Symptom Audio is normal but no picture is displayed on the screen. -
Major
checkpoints
Check the Component source -
Check the Saturn4(IC201) -
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. -
Diagnostics
Does the component data appear at
COMP_YCVBS, COMP_PB,
COMP_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
Insert the component
source properly.
Yes
Check CN705.
Change the Main Assy.
LC350_26": BN44-00368A
LC350_32" : BN41-00369A
Yes
Check the LVDS cable?
Replace the LCD panel?
Please, Contact Tech support.
No
Does the digital data appear at
Pin #16,17 (LVDS Data clk)
of LVDS connector?
No
Check IC201 (Saturn4).
Change the Main Assy.
LC350_26": BN44-00368A
LC350_32" : BN41-00369A
2
No
Check if the set is in
'Stand-by mode.'
5
Caution Make sure to disconnect the power before working on the IP board.
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