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TV grinding noise

Hi I have a Samsung HLS5687w that makes like a grinding noise coming from the rear of TV It last about 10 to 15 sec. then stops, then it starts back. when it does it the TV screen flickers dim then it goes light momentarily then it dims again. No gray screen, No color distortion, just noise and screen flickering light then it dims. I've changed lamp ballast & lamp. Any input or suggestions would greatly be appreciated Thanx Dee

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A grinding noise in that model usaully means the light engine is defective or it could be the color wheel. But light engine is most suspect as there have been some issues with the light engine assemblies

Posted on May 11, 2008

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Ur colors wheel it dead.It spinning of it axes.The noise u hear it the grinding of the colors wheel.There no colors,big buzzy loud noise,or grinding noises.In any kind of DLP tvs that produce the last 10 years they all have colors wheel's.Hire a Tv repairman for this job.Because it require alot of taking out of machanical parts,even can come to the colors wheel part to replaced.Many people made a mistake think it was easy,cost them alot more $$,because tv's tech. don't like fixing other people mistakes,and blunders.Give them a head aches tries figure out what the customer did.

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Samsung hln617w 61"


Most likely part is the Color Wheel, most people describe it as a grinding noise.

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Grinding Noise


sounds like you have a problem with the cooling fan

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I had the same problem with a 5065. I purchased and installed a new color wheel and that solved the noise problem. The color wheel has a bearing that gets "dry", and when it fails it does sound like a fan bearing.

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color wheel can make a squealing noise when the bearings go out, or a defective light engine can make a grinding noise.

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sounds like the light engine there are alot of problems with the light engines and quite a few have had a grinding noise. The only other possibility would be the color wheel. But I would lean heavier toward the light engine being the fault.

Apr 09, 2008 | Projection Televisions

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