Samsung GH15DS Service Manual page 13

4 Troubleshooting
4-2 Video
Power indicator is green?
Yes
Do the input signals appear at
pin 30, 31, 32 of IC401?
3 4 5
Yes
Do the output signals appear
at pin 40 of IC401?
6
Yes
Replace LCD panel.
4-2
Do the input signals
No
appear at D201~D208?
1
Check X301.
Check Pin 68 of IC301 and IC102.
No
Check IC301.
No
Check IC401.
2
Yes
No
GH15DS