Question about Samsung DLP HL-P4663W 46" Rear Projection HDTV-Ready Television

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Loud humming or buzzing when set is in operation

We noted the the buzzing is located in the area of the lamp. As soon as the lamp ignites, the buzzing begins and continues to get louder as time passes.
We changed out the lamp but the errant sound begins with the lighting of the new lamp. We suspect the motor on the color wheel.

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  • Anonymous Jul 23, 2008

    Same

  • LLHowie Oct 09, 2008

    Same thing happens to me and the picture colors change and distort. Can a color wheel be changed by me or do I have to get a technician?

  • Big Dog Jim Nov 04, 2008

    Does anyone have a manual on how to replace the color wheel on a HL-P4663W 46" DLP?

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This happened to me as well, the color wheel had to be replaced

Posted on Sep 03, 2008

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Does the picture gets distorted in any way when you hear the buzzing noise?
I would suggest to check all the cooling fans for proper operation.

Posted on Jul 16, 2008

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Note: Sometimes the whole gas valve may be defective, thus not letting the gas out. However, this problem is not common.

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The Assembly Line Diagnostic Link (ALDL) connector or Data Link Connector (DLC) may be located under the dash and sometimes covered with a plastic cover labeled DIAGNOSTIC CONNECTOR.
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You may not see any deterioration in the picture when the color wheel begins to go bad. The noise will get louder and eventually, it will shut down or the wheel will shatter while the motor continues to spin. If that happens, you'll have a black and white picture.

If its a Samsung DLP that is mercury vapor lamp driven, its a safe bet the color wheel is going bad.

michtech

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