AOC 177Sa-1 User Manual download pdf (Page 34)

17" LCD Color Monitor AOC 177Sa

34

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 D701(-)=1.8V

U702 PIN2=3.3V

Reinsert or check the

Adapter/Inverter

section

X401 oscillate waveforms

are normal

Check CN701, U701,

D701, D702, Q702

Replace U401

Replace X401

OK

OK

OK

NG

NG

NG

NG

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