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Tv have a colors wheel.Colors fade in and out or flashes black and white within the picture.The tv making humming or loud motor noises the colors wheel is dying and not spinning correctly in it motor anymore.The tv must have it colors wheel replace,will solved this problems.
This tv have a colors wheel,hear loud motor noises,humming noises,squiling or grinding noises,have pictures black and white.All these causes are by the colors wheel is worn out, warp rubbing against it motor or fiber plastic glass briddle about to brake aparts.Don't turn this tv on anymore until,u change the colors wheel or u will damage the projection engine.The colors wheel are hard to change for amatur and hobiest.Because involved taking out many machanical parts,before even can come to the colors wheel to take out and change it.The best course to to hire a Tv Tech.to do this job.The price colors wheel part and labors.Awhile back was about $500-550,now??
The tv have a colors wheel.The tv make humming,buzzing motor loud noises or flickering black and white pictures.The colors wheel is dead,require changing,bcause of the colors wheel axsis rubbing on it sides or worn out,than have black & white pictures.Hire a tv tech, to do the job.Because changing the colors wheel is not easy.Require take out many machanicals parts,before even can change the colors wheel it self.
Yes,the problem is the colors wheel it dead.That one of the cause by the colors wheel,other are alots of squiling noises and making very loud buzzing sound.The cooling fan that u think is overheating,does it stop sometimes,when the tv is still on?Yes,than replaced it also,no than it still ok.Just hire the tv repairman,the parts he'll take care of it,don't order the parts,u might get the wrong parts or different sizes,that will not fit in ur tv.
Power issues (Tv not turning on) were typically due to faulty ballast.
While the TV reports a bad lamp it is the ballast itself causing the
issue. Samsung is well aware and will replace both the ballast and the
lamp (since the lamp can be prematurely aged but the bad ballast).
After replacment most people stop having issues.