No Video (Component) - Samsung UA32F45 Series Service Manual

No Video (Component)

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*Refer to the next page to check the lacation such a CN201 or IC201 SVC Manual mentioned.
• Audio is normal but no picture is displayed on the screen.
Symptom
• Check the Component source.
Major
• This may happen when the LVDS cable connecting the Main Board and the Panel is
checkpoints
disconnected.
1
Diagnostics
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 ?
COMP2_Y_CVBS : R816
Pb : R817
Pr : R815
Yes
Check the LVDS clk signal at output of
Main board.(TX)
TX2_CLK : ODD_TXCLK_DN/DP
TX4_CLK : EVEN_TXCLK_DN/DP
Yes
Check the LVDS cable?
Replace the T-con / LCD panel?
No Check a set in the 'Stand-by mode'.
No Input the component source properly.
Check CN502.
No
Change the Main Assy
Check IC1001(X12).
No
Change the Main Ass'y.
No Please, Contact Tech support.
4. Troubleshooting
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