Samsung LHA20WS Service Manual page 32

4-3 No Video (PC Digital Signal)
1
Is Pin9 of
CN500(BKLT_EN)high(3.3V)?
Does the Digital video
9
signal appear at
R100 ~ R107?
Does the proper clock pules
8
appear at Pin6,7
of the CN400?
Yes
Replace LCD Panel.
No
Yes
No
Yes
No
Check TFT_LCD panel or inverter
and connection between then.
Check PC signal.
Check IC300.
4 Troubleshooting
4-5