Samsung LW29A13W Service Manual page 15

5 Troubleshooting
5-2 No Video (PC Analog Signal)
Power indicator is green
Does the signal appear at
Pin 7, 15 and 22 of IC203?
Yes
Does the clock pulse appear at
Pin 30 and 31 of IC203?
Yes
Does the colck pluse
appear at Pin 4, 10 of IC838?
Yes
Replace LCD Panel.
5-2
No
Check the R, G, B signal line and
related the R, G, B signal line.
No
Check IC203 and related circuit of IC203.
No
Check related circuit of IC838.
CONFIDENTIAL
LW29A13W/LW40A13W