Monitor has power; shows analog for split second; then goes black
I have taken the video cable to get checked out; and it does work. (At least Best Buy told me that it did work when they tested it) The power cable works because obviously it has power. I inserted an antivirus disk in the drive and tried powering up the monitor to see if it came up; this didn't work either.
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remove power to your monitor; then remove the monitor's back cover and, front cover; when you can see the circuit board check for a buldged can capacitor or, two; replace these by unslodering them and, resoldering the new ones in place digikey.com sells the capacitors (don't forget the position of the capicitors they go in only one way
check your vga cable that is connected on your cpu,for some lose connection,it must be fitted if you still don't get any display check your cpu.have some other monitor for isolation,if you dont have bring it on s repair center,your cpu has a problem.
this happens with a few monitors and some graphics cards. if you connect your monitor through a DVI cable, try connecting it through an analog cable. if possible change your graphics card, that should solve it completely.
they normally turn off like this when they aren't receiving a video signal from the pc (same as when you turn off the pc). make sure that it is connected properly, and that the video output is activated. try disconnecting from the other monitor while its on and connect the problem monitor...if it still isn't working then there may be a problem with the cable or the monitor itself. Try another VGA or DVI cable. Hope this helps
How old is the computer? Make sure that the power light comes onto the monitor when you plug it in, should be orange and then turn green when video card syncs with it when PC is turned on. If you are getting black screen when PC is powered on:
1. Bad video card
2. Bad video cable
3. Bad monitor
1Solution: Try using a different monitor attached to this same PC and see if it works. If it does, then its the monitor, its cable, or its power supply. If it doesn't work, then its the video card or the video cable coming from monitor.