Acer AL1702 Servicehandleiding - Pagina 14
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2. Nothing displays on screen (Screen is black, color of LED is green)
Is backlight lit?
OK
Does computer output RGB video
signals?
OK
Check OSM menu is display on screen
when you push the "PROCEED" key.
OK
Proceed "Abnormal sreen" dection"
Page 12
NG
Refer "Checking the backlight unit" section"
Check the video cable for failure. Check the host for output
1)Change pattern of video signal output on the host.
NG
2)Rsconnect the video cable.
3)Change the video cable.
Check if the LCD video signal cable is connected between the
NG
signal with all black only.
MAIN PWB and LCD module.
NG
OK
Next Page
AL1702
Failure Point
The cable is disconnected.