AOC F19L User Manual

18.5" LCD Color Monitor AOC F19L
38
9.2 Trouble Shooting
9.2.1 Main Board
1. NO SCREEN APPEAR
715G2883 1 6
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 U104 Vout=3.3V
ZD104,ZD105 VC=5V
Reinsert or check the
power section
X401 oscillate waveforms
are normal
Measure CN101 PIN5/6=5V?
Measure CN101 PIN9/10=5V?
Replace U401
Replace X401
OK
OK
OK
NG
NG
NG
NG
Check power
section
NG
OK
Replace U104, ZD104, ZD105

AOC F19L Specifications

General

Brand	AOC
Model	F19L
Category	Monitor
Language	English