5.Troubleshooting (continued)
5.4 AbnormalScreen:
CheckR.G.B video signals
outputfrom PC host
toD-Sub R.G.B connector
Checkthe R.G.B signals
onI314 pin40, pin42, and pin45 which
shouldhave voltage level at 0.7Vpp
max.
OK
FailurePoint
1.Check connected PC host if there’s no R .G.B
signalsoutput.
2.Video signal cable disconnected .
FailurePoint
Green,Blue, Red signals are flow in the same
path.In the case, the Red signal is example .
1.Printed wire is broken between D-Sub [R] and
I314pin45.
2.R391 is short.
3.C356 is open.
4.R390 is open.
Checkall LVDS signal pins
ofI314 whether if
outputcorrect signals.
Proceedto “5.8 Checking the resolution change
ICmovement” section.
NG
NG
FailurePoint
1.The I314 is defected.
2.Printed wire is broken between I314 and P 306.
NG
OK
OK
23
Go to cover page
ACERG24