Acer CML174SXW, Service Manual

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33
6.1.2 Performance Troubleshooting
Start
Is Screen
Scrolling?
Yes
No
Change
VGA Cable
Change
Main Board
Is the screen
flickering?
Change
Inverter Board
Change
Main Board
Yes
Yes
Yes
Yes
No
No
Yes
Yes
Yes
No
Change
LCD Module
Is LCD line
defective?
Change
LCD Module
Bad Uniformity?
Change
LCD Module
Yes
Yes
Yes
Yes
No
No
Is the screen
white?
Check
Connector
Change
Main Board
Change
Main Board
Yes No
Yes
Yes
No
Yes
Yes
No
No
Screen has noise
or line bar
Reset & Adjust
“Tracking or
Frequency”
No Trouble Found
End
Change
Main Board
End