Question about Sony Grand WEGA KDF-55WF655 36" Rear Projection HDTV
There is an annoying whistling like noise that is coming from my t.v. .
you still here it when the volume is turned down so i know its not the speakers.
someone said it might be a fan? not sure?
if it is ...can someone replace this themselves or do you need a repair man?
It could be the fan since many modern fans are speed controlled and fed with chopped voltage with a frequency of a couple of kilohertz which we would interpret as a squeal.
It could also be the impending failure of one of the power circuits which when approaching failure may emit noise in the audible range although they typically operate well above our hearing.
I'm not sure about your set and don't have time to research it right now, but many of the rear projection units have a color wheel that also turns at a high rate and from what I know of them, they are fairly costly to replace.
Those three are possible suspects and of them, only the fan replacement is something the average owner can deal with.
Posted on Oct 01, 2008
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Posted on Jan 02, 2017
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