Question about Sony Grand WEGA KDF-42WE655 42" Rear Projection HDTV

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Sony 46'' WEGA TV

TV works fine, There is a noise coming from the right rear. I do not think it's the fan motor. It sounds like a computer starting up. Could it be the mirror assembly? It makes the noise about 80% of the time.

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The mirror assembly has no moving parts, this unit has a minimum of 3 fans! if the fan blades get too dusty the fan will get noisy. Try cleaning the fans with compressed air.

Posted on Jan 04, 2009

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Ur right the cooling fan is defective,check it,clean it might work normal again.Not, than the cooling fan must be change.

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I have owned a Sony Grand Wega for about 3 years now and for the past few months the TV has been making a very loud noise. I thought the noise was the fan but came to find out it was not the fan and was...


Hello,

There is a fan beside the lamp chamber in this TV. There should be 4 fans total, and the one beside the lamp chamber might be making some noise. They are all bearingless fans, so the noise should be relatively low-pitched "whirr" if it is the fan. If the noise is more of a buzzing sound, it could be coming from the lamp driver (ballast) or from the lamp itself. Lamps tend to do strange things toward the end of their life.

If you have never changed the lamp, it is about time. They have a 2.5 -3 year life span with average use.

One thing you can try is to turn the TV on from a cold start, and watch inside the vent areas beside the lamp chamber. If you hear the noise before you see the lamp light up, then it is probably a fan. If it starts as soon as you see the lamp light up, it is the lamp or ballast.

Hope this helps you...

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