Trouble Shooting - AOC 2436Vh Service Manaul

24" LCD Color Monitor

9.2 Trouble Shooting

9.2.1 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 U702 Vout=3.3V,
U703 Vout =1.2V
X401 oscillate waveforms are
normal
No power
NG
OK
OK
OK
Replace U401
NG
Reinsert or check the
power section
Check
NG
U702,U703,CN701
NG
Replace X401
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AOC 2436Vh