Trouble Shooting - Dell E207WFP Service Manual

20" LCD Color Monitor

8.2 Trouble shooting

8.2.1 Main Board
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 U602 PIN2=1.8V
U601 PIN2=3.3V
X301 oscillate waveforms
are normal
No power
OK
OK
NG
OK
NG
OK
Replace U401
Reinsert or check the
NG
Adapter/Inverter
section
Check CN601 or replace
U601, U602
Replace X301
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Dell E207WFP