No Video (Analog Pc Signal) - Samsung LNT4065F Service Manual

4 Troubleshooting

4-2 No Video (Analog PC Signal)

Power Indicator is off.
Lamp on, no video
Yes
Check the PC source and
check the connection of
DSUB?
Yes
Does the signal appear at
#w1, #u1, #AB2, #F1,#G1
1
(R,G,B,H,V) of IC101?
Yes
Does the digital data
appear at output of
2
RA061~RA063,RA065,
RA067,RA068?
Yes
Does the digital data
appear at output of
3
R1010~5, R1024~7?
Yes
Check the LVDS cable?
Replace the LCD panel?
4-2
No
Input an analog PC signal.
Check the connected cable.
Check CN093, PC cable.
No
Change the PC cable. Change the
main PCB assembly
No
Check IC901
Change the main PCB assembly
No
Check IC071
Change the main PCB assembly
No
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