Acer AL1516W User Manual

5.7.1 Checking the control circuit of horizontal sync pulse
5.7.2 Checking the control circuit of vertical sync pulse
OK
NG
F ailu re P oin t
V id eo cab le is failu re .
OK
NG
F ailu re P oin t
1) Printed wire broke between P302 pin14
and I305 pin28.
2) FB310 or R322 is open.
3) D306 or R323 or C326 is short.
F ailu re P oin t
Process "Checking the resolution change IC
movement" section.
Check the horizontal sync
signalonP302pin14TTL
lev el.
Check the horizontal sync
signal on I305 pin28 TTL
lev el.
27
Go to cover page
5.7 Checking the interface circuit of sync signal
5. Troubleshooting (continued)
OK
NG
Failure Point
Video cable is failure.
OK
NG
Failure Point
1) Printed wire broke between P302 pin13
and I305 pin27.
2) FB309, R321 are open.
3) D307 or R324 or C327 is short.
Failure Point
Process "Checking the resolution change IC
movement" section.
Check the horizontal sync
signal on P302 pin13 TTL
level.
Check the horizontal sync
signal on I305 pin27 TTL
level.
ACER AL1516W

Acer AL1516W Specifications

General

Brand	Acer
Model	AL1516W
Category	Monitor
Language	English