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Video mode not supported, etc. In this case, first check the source of the problem, and then contact
the Service Center or your dealer.
Judging the monitor's working condition
If there is no image on the screen or a "Not Optimum Mode", "Recommended Mode 1280 x 1024 60
Hz" message comes up, disconnect the cable from the computer while the monitor is still powered on.
If there is a message coming up on the screen or if the screen goes white, this means the monitor
is in working condition.
In this case, check the computer for trouble.