Question about Samsung HLP4663W 46" Rear Projection HDTV

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Loud Buzzing Sound

Hear a loud buzzing noise in back of tv whenever I try to turn it on. No video or sound and the light combinations on the front indicated a lamp. Replaced the lamp and the loud buzzing sound continues and still no video or sound.

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Re: Loud Buzzing Sound

Since you changed the lamp my next thought is that the color wheel has failed,,,most good road techs can replace it in the home..the cost would be between 220.00 and 350,00 depending on the company...

Posted on Nov 29, 2007

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presuming it has one two choices: contact Philips (good luck there) or Google the model number with "color wheel"

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that's a failure about to happen in your video control circuit feeling like you want to dig into this yourself, or does this have a warranty

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Loud sound would be coming from defective color wheel that is mounted i light engine, next to lamp housing. Replacement of color wheel is required expertise/ experience and professional will do that for you in correct and in safe manner.
Contact local tv repair shop to get color wheel replaced in tv.

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My samsung 42 inch hdtv is making a buzzing noise

First. The whirring or buzzing sound you hear is the Color Wheel and it needs to be replaced. Second, since I do not know when and if the original lamp has been replaced it is a good idea to replaced the lamp. The bad Color Wheel is the one causing the set to shut down.

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Sounds like your color wheel is failing they make a loud sqeauling noise when they begin to fail.Run you somewhere around $300-400 to have a tech repair it.

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1 Answer

TV makes humming noise, lamp light is blinking, does not turn on

Your color wheel needs to be changed. Mine just did the same thing. I changed mine, and the buzzing sound went away, however now my picture washes out with light or yellow colors. The darks look green and purple also.

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Loud buzzing noise

sounds like the color wheel needs to be replaced very easy repair on that model Samsung.

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Loud Buzzing Sound - Rear of TV

It is probably the color wheel that needs replacing.

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