SOURCE: screen goes dark, sound goes quiet...
I have a sony KDF-E60A20 projection tv. The picture would go out for about 30 seconds and come back on. It would continue to cycle this way. The green power light would stay on and not flash. The sound would go off when the picture went out and come back on when the picture came back on. I tried taking the bottom cover off the back exposing the fan and blowed it out with a vacuum cleaner, also taking out the bulb and blowing it out. That didn't help. So I ordered a new bulb from Advancedlamps.com and that's what it was. I have now had it on and off for two days and no problems. Cost of lamp was $107.00 including shipping. Good Luck!
SOURCE: monitor goes dark after a few seconds
it looks like the video driver needs to be chcked. can you try to go to the bios of your omputer by pressing f2 on boot and let it stay there for 5 minutes? if it still goes to a black screen, its either your video card or lcd thats having a problem. but if it doesnt goes to a black screen in bios, its just the video driver. go then to safe mode by pressing f8 on boot. then uninstall and reinstall the video driver. or run system restore. restore it back to a working date thts by clicking start, then click all programs, go to accessories, go to system tools, click system restore, choose an earlier date and hit next, follow the prompts,wait for the computer to restart and that should work!
SOURCE: Screen goes blank after 3/4 seconds
I can confirm the number 3 solution. I have fixed a bunch of these now.
Replace
capacitor C202, 680uf 25V. It is usually visibly damaged. It should be
a low impedance type, often known as "suitable for switch mode power
supply".Even yesterday.
SOURCE: Viewsonic VA912b. Monitor will only turn on for a
Bad caps in the power supply, common problems. See examples here: http://s807.photobucket.com/albums/yy352/budm/Viewsonic%20V912B/
SOURCE: screen goes black,power light stays green. display only stays on a couple of seconds
This happened to me and I was able to fix it. I cracked it opened and found a bad capacitor, bought a replacement at Radio Shack and I'm back in business. Actually using it right now to post this.
-Jon
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