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I have a Samsung HL-P4663W TV. Last evening we heard a pop and then the screen started to shrink in size and a loud buzzing noise could be heard. The indicator lights on the front panel indicate that the lamp needed to be replaced. I replaced the lamp with a Samsung replacement and still have no picture and aloud buzzing noise. Is it possible that the new lamp was defective, or could it be the DLP engine itself?

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After much research, it became apparent that the most logical culprit after the lamp was the color wheel. It has been replaced and the set is working again.

Posted on Aug 22, 2008

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Samsung model HLP4663WX/XAA with loud buzzing noise, need to know which part to replace.


See attached photo: you have a bad color wheel----it turns at about 12,000 rpm and bearings in the tiny motor go bad.

High pitched or fan like sound is classic symptom.

The wheel is available on the internet and You Tube has video instructions by model number for replacing it---Google the model number for the part number for your set to locate the part and instructions.

This for most people is a do it yourself job---takes like 45 minutes start to finish.

If color wheel slows too much set will shut down as its speed is monitored and the wheel can even shatter causing shutdown of the set.

Steve


2_29_2012_3_24_32_pm.jpg

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Color wheel needs replacement is the most likeliest cause.

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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.

http://the-tv-dude.blogspot.com

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