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Greetings. I have a bad monitor and a friend who's good with electronics and circuitry who's interested in trying to fix it. So I was wondering if anyone would have some idea what the problem is with this monitor and what to look at once we get it opened up. The monitor turns on just fine. The problem is when it it connected to a computer. Once I plug in the VGA cable, the computer desktop shows for a few seconds then the monitor just goes blank and that's it. When tested, the computer still detects that another monitor is been connected, but the monitor itself shows no image after a few seconds. It's a standard 15 inch LCD Dell monitor, VGA input. It's just an old monitor and if it can work again, that would be great. If not, no big deal.