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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Re: TV grinding noise
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
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This tv have a colors wheel,it dying,now it dead.Colors flashes black&white and grinding noises,the colors wheel was spinning off of it motor axis and rubbing it sides wall.The colors wheel,now require changing to make the tv work again.The colors wheel it pretty hard to replaced,because it require take out many machanicals parts even can get to the colors wheel to replaced it.Best it to hire a tv tech. to do the job.If u never done or change anythings,that require take out alots and many machanicals parts before.
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.