No Video (Analog Pc) - Samsung LE32N71B Service Manual

4-2-2 No Video (Analog PC)

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
#30, 22, 38(R, G, B) of
IC4001?
Yes
Does the digital data appear
at the input of
LBE (RA4016~18)?
Yes
Does the digital data appear
at the output of IC4003
(RA4014,15_1CH,
R4132,33_1CH)?
Yes
Check a LVDS cable?
Replace a lcd panel?
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 IC4001
Change a main PCB ass'y.
No
Check IC4003
Change a main PCB ass'y.
No
Please, Call to Samsung Co. LTD.
4 Troubleshooting
4-3