Tv doesnt complete power on, shuts itself down 3 times
I have a GE 56 inch rear projection that I bought in 1999. This is the first problem I have had with it. While I was out, My daughter said that the picture on the tv flickered a few times, then the tv shut off. I came home, and tried to turn it on. It tried to power up, but shut itself off, then did the same 3 times. The screen stays black. I have found that this may be a power current problem. What do you suggest? Ive also found that this problem is hard to find. I hate calling a repair guy, as I fix most everthing myself around here. But, Ill do what I have to, I suppose. Any help is welcome, and very much appreciated.
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Re: tv doesnt complete power on, shuts itself down 3...
The 3 start attempts in the tv indicate a horizontal shut down fault. if you have repair knowledg, the most likely thing is the capacitors in the horizontal circuit, check those. then check diodes. if the tv still does not work then you have a bad high viltage transformer or a bad hight voltage splitter. further testing becoms dangerous to do at home due to the high voltage. if the caps are bad the typically run around $4- 12 each, h.v. parts $75 to $125. each + you local shop rates.
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I transport them all the time and the best way to do it is to put something down soft in the bed of a truck then lay it down screen first on its face. If you stand it up in the bed of a truck the wind usually destroys the screen. laying them down face first doesnt harm them as long as you have somehing soft to lay it on so the screen doesnt get scratched.
Sounds like it's possibly your convergence IC's overheating. On some projection tv's, after time, the solder joints on the IC's weaken from the heat and cause them to turn off the tv for it's own protection.
The convergence chips have shorted out causing the TV to shut down. This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem. You can get a repair kit with parts and instructions from www.TvRepairKits.com
Sounds like a CRT is arching internally. to confirm remove the covers to have a view of the picture tube necks- in adimly lit room you should see bue arching in one of the tubes. (there are three piture tube with glass necks)