Samsung ST436WMX/GAP Service Manual page 48

Troubleshooting
6-6 Power Board Troubleshooting
6-6-1 No Power
6-14
Check Standby Voltage (6.5V)
NO
Check RL801S
NO
Check NT801S,DZ801,DZ802,
DZ809,D803,D804,FD801S
NO
Check D831, D834, D832,
D833, FD804S, FD803S, R835,
RD802S of the Cold Stag
NO
Check/Replace IC801S, T801S,
D801S, IC804, PC801S
YES Replace the same as
"6-6-2 No StandBy"
YES In POWER ON, Check/Replace
QS801, RL801S, DS806 if the voltage output
from CN802A pin 3 is 3V.
Check/Replace IC165(PW364) if the voltage
output from CN802A pin 3 is 0V.
YES
Check and Replace any failed parts
YES
Check and Replace any failed parts
Samsung Electronics