AOC 712SI User Manual

17” LCD Color Monitor AOC 712Si
31
White screen
OSD is normal when on signal, no picture when connect signal (black screen)
Chan
g
e si
g
nal connector
Change defective component
Check pin70、pin74 H/V
sync signal is OK
Check VGA、HS、VS
Change U2
Check U5、D15、D16、C55、C56
NG
NG
OK
OK
NG
Check PWR_EN is high voltage
NG
Change U2
OK
Check L1 supply voltage
NG
Chan
g
e Q3、L1
Check out
p
ut of Pin4 from IC3
Pin 6 oscillate is normal
NG
Check C81
N
G
OK
Check IC3
Check pin1、pin2 is high voltage
NG
NG
Check C82/C85/IC3
Chan
g
e defective com
p
onent
Check D21 voltage is normal
after adjusting current
Chan
g
e Q6
Chan
g
e C81
NG
OK
OK
OK
OK

AOC 712SI Specifications

General

Brand	AOC
Model	712SI
Category	Monitor
Language	English