Samsung ES15A series Service Manual page 13

5 Troubleshooting
5-2 No Video (PC Signal)
Power indicator is green.
Yes
Does the signal appear
at C106, C107, C108
of R, G, B input?
Yes
Does the clock pulse
appear at X100?
Yes
Does the clock pulse appear at
output of RA102 ~ RA107?
Yes
Does the clock pulse
appear at R401?
Yes
Does the clock pulse appear at
output of R605 ~ R614?
Yes
Replace LCD Panel.
5-2
No
Check CN100.
No
Check X100 and related circuit of X100.
No
Check related circuit of IC102.
No
Check R401 and related circuit of R401.
No
Replace R605 ~ R604.
ES15A*/ES17A*