No Video (Analog Pc Signal) - Samsung LE23T51B Service Manual

4 Troubleshooting

4-2 No Video (Analog PC Signal)

Power Indicator is off.
Lamp on, no video.
Yes
Check a PC source and check
the connection of DSUB cable?
Yes
Does the signal appear at
1
R781, R782, R783?
Yes
Does the digital data appear
at output of
3
LVDS TX(R422~R425,
R430~R433)?
Yes
Check a LVDS cable?
Replace a lcd panel?
4-2
No
Input a analog PC signal and
connected cable(DPMS).
No
PC cable. Change a PC
cable. Change a main PCB ass'y.
No
Check a IC310.
Change a main PCB ass'y.
No
Please, Call to Samsung Co. LTD.