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This tv have a colors wheel design in it.The tv make loud grinding motor noises or pictures flashes or freeze and pictures turn in black&white with sound.The tv colors wheel it is dying or worn out already.Don't tries to change the tv colors wheel ur self.If u don't any mechanical skills,because the colors wheel it sit way back of the tv,must take out many mechanical parts before even can come to the tv colors wheel itself to replace it.Best to hire a tv tech. to change the colors wheel,so no problems for tv funstions for later or damages more parts on the tv set,if u install the new colors wheel in the tv wrong way.
The tv have a colors wheel design into it.The tv colors wheel is dying and spinning off it motor axis.The noises u are hearing are the colors wheel is grinding and hitting it steel hall of it frame box.U have no mechanical skills don't tries to replaced the colors wheel by ur self,because the colors wheel sit way back of many mechanical parts of the tv must take out before even can come to the colors wheel itself to replaced the colors wheel itself.Hire a tv tech to do the job to change the tv colors wheel.If u have no mechanical skills to take out and putting it back of tv colors wheel itself,because u will regret it,if u do it ur self and putting in the colors wheel in the wrong way to the tv itself.
You have a bad color wheel. It will make a screeching or grinding noise. that means its about to go out, your picture could freeze or pixel up before it gors completely but most likely you are going to go to turn it on and it just is not going to light up.
The color wheel is about a $300 repair...not really a job for a do it yourselfer though.
Hi,If your tv is a dlp you might be experimenting a color wheel problem.The color wheel is a rotating disc that has a gamma of colors it spins at high rpms.The light of the lamp goes through it to create the colors on your tv.When it starts to go bad you will get color distortion ,black and white picture and sometimes you will hear humming ,grinding,buzzing noises.
This sounds like you may have a bad color wheel. If you want to change this yourself you need to be aware that even with the tv unplugged there are still dangerous voltages in the set. Changing the color wheel is an involved repair the wheel it's self is very fragile to handle, they can be purchased on line from many sources.
The cost from a service center would be a normal service charge plus about $150.00 for a color wheel. If you have a service center come out to your house explain your problem clearly and they will know they need to bring a color wheel, it will prevent the tech from having to make a second visit.
noise you are hearing can be the fans inside with bad bearings and or what im assuming given the info you gave.More likely the motor inside the optics engine (color wheel) is making noise..This will also cause picture problems..very expensive to repair..