Rca 52 inch keeps shutting off and picture is curved
Today i turned on the tv and the picture is curved looking and it keeps shutting off.. we took off the back and cleaned all the dust and this did not fix it..Picture quality is still excellent but doesnt look right when its curved.. It almost acts like its surging when it shuts off then comes back off but the menu doesnt show up its just a black screen then goes back to the show and will be normal for awhile then goes back to being curved.
This tv is only 3 years old..
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Re: rca 52 inch keeps shutting off and picture is curved
The curved picture indicates failing parts in the pin amp section and probably some faulty parts in the scan amplifier sections. The set is being turned off by the uPC because there is a fault indicated, and it is going in to protect mode.
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try blowing out the set and especially the three fans and the area around them---seen a number of these where a dirty fan will slow down just a little and even stop set from coming on at all or shutting down sometimes.
We usually roll them outside and with a aircompressor clean the set out, it usually looks like a dust storm.
I have had more than a few brought in that would not power up and as soon as cleaned outside, came up and worked.
The actual air intakes are on the front of the set and dust gets sucked into the unit.
Ur tv have convergence problems,before ur convengence ICS totally went dead.U must have tools like soldering iron,solders,solder witch,and know how to solders to fix this problems ur self.Must replaced 2 convergence ICS,and some or all it resistors.Tries websites like Tv repair world.com,Tvrepairkits.com to buy a convergence kit to repair it ur self.The shop will cost u $300-350 for parts and labors.
you probably have a little of both. the shutting off is definately heat related but could be too much dust on heatsinks, etc causing it to shutdown. cleaning may eliminate problem but could be a sign of an underlying issue..
the dust can really cause the picture to dim. most of these tvs you can pull the "lightbox" or guts out of the cabinet to clean all 3 lenses, and clean the mirror if needed. don't mess with the screens except cleaning the front from outside. usually a 1/4" driver will be all you need, and a soft cloth for the lenses. use compressed air or a vacuum to clean out dust which will help with cooling, but the picture is only effected by dust on lenses, mirror, and screens.
Look for the computer processor inside the TV. It needs to be cleaned. A can of compressed air will work. The processor is overheating and causing the tv to shut off. Look for the small fan that is supposed to keep the processor cool then remove the dust.
Hello All, I may have an inexpensive solution to your problem. I had the same problem with my TV as well. It would shutoff by itself about an hour after it was turned on. The when I would turn it on again it would shut off after 5 to 10 minutes. Finally I got fed up. I knew it was not my bulb because the picture still looks good. I did here a buzzing if I would turn the TV on right away after it would shut off. That was do to the bulb recharging itself. I noticed the TV was extremely hot in the back. So automatically I thought it was the cooling of the set. All post I read keep saying the TV would last about 2 years to a year after a service. Which would be right because (most) service repair clean out the units before installing new parts. What I did was I opened unplugged the TV from the wall and opened unscrewed the back panel door. I used my Air compresser and blew out all the dust inside. ( A can of compressed air should do the job if you do not have a compressor) I removed the bulb and blew out the dust on the bulb as well. I did not remove the bulb from the housing unit. After I dusted the bulb and housing unit I reinstalled it. I keep my home clean but you should have see all the dust that came out. The dust covering the components overheat the unit which causes it to shutdown. It has been about 2 weeks and have not experienced any problems since. All I can say is give this a try and maybe this will work for you. This will only cost you about 10 dollars and 30 minutes of your time. This is better that Hundreds of Dollar in repair.
Well I finally had the TV picked up by a Toshiba recommended repair place and they are saying that it is a bad Optical Block, also known as the Light Engine. Total for pick up, parts and repairs is $827.00. This seems ridiculous to me when brand new TVs are so much cheaper now. I don't think I will pay that much to have this one fixed.
Stactic electricity attracts dust in all sets so if there was someway you could blow dust away from set like small fan. It will not get 100% and may not even 60% but any bit helps. You can't keep all dust from them so try your best to keep clean dust regular in back. Hope this helps!