19” LCD Color Monitor Adelpia TGL198AW
32
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
Reinsert or check the
power sect
Check if X401 oscillate
waveforms are normal
Measure U701 Pin2=3.3V,
C704(+)=1.8V
OK
OK
NG
NG
NG
Measure CN701
Replace U401
Replace X401
NG
Replace U701
，
Q702
OK
OK
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