Question about RCA HDLP50W151 50" Rear Projection HDTV

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Loud humming or high pitch buzzing noise coming from my rca dlp tv 50 inch

High pitch buzzing occurs after tv has been on for an hour or so. Noise periodically happens for about 3-4 seconds and then stops. It happens every 20-30 seconds or so. Then sometimes I can cut my tv on and I never hear the buzzing noise when watching it. Noise was not heard until now. Purchase tv about 1 year ago and noise was not there. This is the only problem I get. Picture is fine.

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  • jrobinson35 Aug 08, 2007

    no I have not moved the TV or installed any equipment in your house, or started using an Air Conditioner, fluoro light etc?

  • jrobinson35 Aug 08, 2007

    The tv is near my stereo that is used as my surround sound system for it

  • simonsays148 Nov 14, 2007

    I have the same problem humming and buzzing noise, every time when i turn on my tv. I brought this tv a little over a year. Don't know what to do?? Please help?????

  • dandeb Mar 01, 2008

    Wicked loud humming just started the unit is mybe 4 years old and I can't get rid of humming

  • denver123 Apr 30, 2008

    High pitch sound coming from the T.V.; I have a surge protector and didn't installed anything new to the house. All of a sudden this sound pop-up.

  • jrobinson35 May 28, 2008

    I think the humming sound is coming from interference with something electrical around your tv or in your home. Try moving your tv somewhere different in the room and try to keep other electical items away from it.

  • Anonymous Nov 25, 2008

    I have this problem but it isn't high pitched, just loud enough to bother me and I know it is there. It doesn't happen all the time and the tv doesn't even need to be on, only plugged in. I have it on a power strip and turn it off when not in use. This started shortly after I had my cable installed. I don't have a convertor box, so nothing new electronically has been added.

  • quietly mad Dec 07, 2008

    My "RCA HDLP50W is making a noise like a high voltage leak to ground somewhere in the set's right rear when seen from the screen side.

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I have a very high pitched sound and when I move the tv it will stop for a second or two and then start again. The sound sometimes stops all together. But very high pitch sound.

Posted on Feb 14, 2010

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The problem is the dust that has hit the fans. The light and color wheel. In short DLP runs hot and if you have dust forget it! if you have ever sat in a presentation the projector is DLP. You can try to clean it out but there is not much you can do. I have a 61 inch RCA and it drives me nuts.

Posted on Jun 21, 2008

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Hi folks solved this problem by A) investing in a good UPS/surge/line conditioner from APC and B) try not to suck power!

Posted on Dec 03, 2007

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Have you moved the TV or installed any equipment in your house, or started using an Air Conditioner, fluoro light etc?

Posted on Aug 08, 2007

  • Gecko Smooth
    Gecko Smooth Aug 08, 2007

    Sounds suspiciously like some voltage leak at the HV circuit. Does it happen more when you have high humidity?
    If you are fortunate it just needs blowing out.
    Be aware of very high voltage in there, even months after you have unplugged it, I am not kidding. They can kill you.

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