Samsung LE32C53 Series Service Manual page 44

4-1-8. No Video (Component)
Symptom Audio is normal but no picture is displayed on the screen.
-
Check the Component source
-
Major
Check the chelsea.
-
checkpoints
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
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Diagnostics
5
2
Caution Make sure to disconnect the power before working on the IP board.
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)?
Yes
Does the component data appear at
TP - COMP_Y, COMP_PB, COMP_PR?
Yes
Does the digital data appear at
TP-E_TXCLK+, E_TXCLK- ,
O_TXCLK+, O_TXCLK-?
Yes
Check the LVDS cable?
Check the T-Con B'd?
Replace the LCD panel?
No
Check a set in the 'Stand-by mode'.
No
Input the component source properly.
Check CN802.
No
Change the Main Assy.
Check IC1102 (SX1).
No
Change the Main Assy.
No
Please, Contact Tech support.
4. Troubleshooting
4-19