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Computer sounds like it is starting up but screen is black - is it possible that the monitor has gone bad? Or does that suggest something worse?

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It is quite possible that your monitor has gone bad with age or impact. Fastest test is to hook up a separate display using the auxiliary monitor port -- if you get an image on that monitor but not on your main monitor, and the rest of the computer operates properly, your LCD panel or inverter has gone bad.
Either is a relatively simple fix for a certified technician. The inverter MSRPs for $60-80 but can be found for as little as $16 used. The LCD panel MSRPs for $250-300, but can be had for as little as $80 used. Prices quoted are for the 17" version iMac.

Posted on Jun 18, 2010

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