Question about RCA P56950 56" Rear Projection Television

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I have a RCA 60 inch TV and its about 12 or 13 years old. It has never been serviced or cleaned on the inside. The problem I'm having is the picture is starting to fade (quite a lot)and I was wondering if I need to clean or dust anything inside the tv. Also it turns itself off, I though it was getting hot so I took off the front cover and place a small fan in front of the tv. That stopped the tv from cutting off. Anyway do you think my tv needs a good cleaning or do I have something burning out?

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  • minnow4u2 Feb 18, 2009

    thanks, I'll try cleaning it. Do I need to take off both the upper and lower rear panels to do this?

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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.

Posted on Feb 18, 2009

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