Hanns.G HSD HG191D - Trouble Shooting; Main Board Troubleshooting

19" LCD Color Monitor HSD HG191D
36
8.2 Trouble Shooting
8.2.1 Main Board
No Power
No power
Press power key and look
if the picture is normal
Please reinsert and make sure
the AC of 100-240 is normal
Measure U702 Vout=3.3V
Q702 Vc=1.8V
Reinsert or check the
Adapter/Inverter
section
X401 oscillate waveforms
are normal
Check CN701 or replace
U702, Q702
Replace U401
Replace U401
Replace X401
OK
OK
OK
NG
NG
NG
NG
NG