Question about RCA HD50LPW42 50" Rear Projection HDTV

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Buzzing I have had this tv for 2 1/2 years. About 3 months after getting it the buzzing started after a power outage. It disappeared after a couple of weeks only to come back a couple of months ago. Sometimes it's loud, sometimes it's not there at all. I know it's either the cooling fan or the color wheel. I would like to replace the cooling fan first but don't know how. I have a 50 mile snowmobile ride to get to a car so calling a reapair person is out of the question.

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Re: Buzzing

I have this same issue with mine as well. It is most likely the color wheel. Unfortunately I cannot find a replacement for it.

Posted on Dec 27, 2007

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Hello Jack,

That buzzing might be two things. It could be the color wheel or the ballast for the bulb. To check this you will have to move the projection section of the TV out of the case and listen for the sound in the area of the color wheel and the ballast. Try removing the color wheel power to see if the buzzing stops if it does then it's the color wheel is not and the ballast is buzzing then It's the ballast, and it will need replacing or if you know electronics you could try fixing the old ballast (I would suggest getting a new ballast).

Better still if you are uncomfortable working on the set you could get a qualified TV repair person to repair your TV .

I hope this helps,
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