Trouble Shooting - Iiyama PLE1902S Service Manual

19" LCD Color Monitor

8.2 Trouble Shooting

8.2.1 Main Board
No Power
No power
Press power key and look
if the picture is normal
NG
Please reinsert and make sure
the AC of 100-240 is normal
OK
Measure U703 PIN2=3.3V
U701 PIN2=1.8V
OK
Measure X401 oscillate
waveforms are normal
OK
Replace 401
Reinsert or check the
NG
Adapter/Inverter
section
NG
Check CN701 or replace
U701, U703
NG
Replace X401
33
Iiyama PLE1902S