Samsung ST436WMX/GAP Service Manual page 38

Troubleshooting
6-2-5 No Power
6-2-6 No Caption
6-4
STAND-BY(5V)
Analog 5V
Digital 5V
Analog 9V/8V
STAND-BY(5V)
Check CN802B Pin1(6.5V)
Check IQ101(SI-3050) Pin3(STB-5V)
Check CN801B Pin3(7.0V)
Check IQ105(SI-3050) Pin3(5V-A)
Check CN801B Pin7(7.0V)
Check IQ106(SI-3050) Pin3(5V-D)
Check CN801B Pin1(12V)
Check IQ103(SI-3090) Pin3(9V)
Check CN801B Pin1(12V)
Check IQ104(KA7808) Pin3(8V)
Check IC302(Z86129) Input Port
H-Sync (Pin5), CVBS(Pin7), 5VA(PIn12)
Check IC302(Z86129) Output Port
Check Text(Pins 2,3,18), Box(Pin17) Out
Check Signal Mixing at IC303
(NJM2248) Pin7
Check the Box Signal applies to C303
(NJM2248) and IC341 Pin4
Samsung Electronics