Nothing Displays On Screen (Screen Is Black, Color Of Led Is Green) - Acer AL702 Service Manual

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 OSD menu is displayed on screen
when you push the "PROCEED" key.
OK
Proceed "Abnormal screen" section.
Page 2
NG Refer "Checking the backlight unit" section
Check the video cable for failure. Check the host for
1) Change pattern of video signal output on the
host.
NG
2) Reconnect the video cable.
3) Change the video cable.
NG
output signal with all black only.
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A L C502