Samsung 203B - SyncMaster - 20" LCD Monitor

4 Troubleshooting
4-3
Is pin9 of
CN501(BKLT_EN)high(3.3V)?
4-2 No Video (PC Analog Signal)
6
Check TFT_LCD panel or inverter
and connection between then.
Yes
No
Does the analog video signal
appear at R101,105, 108
(Red,Green,Blue)?
Check pc signal.
Yes
No
Does the X201 and X200
oscilate Properly?
Check the X200, IC201.
No
Yes
Does the proper clock pules
appear at Pin6,7 of
the CN201?
Check IC302 and IC201.
No
Yes
Replace LCD Panel.
7
8
10