Question about RCA D44LPW134 44" HDTV

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Buzzing sound by bulb

RCA D44LPW134 This T.V. has a faint buzzing sound coming from the bulb fan area. I used a stethescope to narrow the buzzing down to the bulb area. I thought it was the cooling fan so I replaced it. I still have the noise.If I grab ahold of the case that the bulb and fan are attached to I can get the noise to almost go away. Is the something that commonly happens that may need tightened? Any suggestions? Thanks

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Be quite sure that it is not the fan physically touching the case; other than that, scope your B+ voltage to the ballast and be certain it is clean;  while it could be that or the lamp itself, it is most probably loose or misaligned case assembley

Posted on Oct 30, 2007

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