Question about JVC HD-52G786 52" Rear Projection HDTV

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Why does my jvc 5 inc tv have a big dark spot on the left side of the screen

Recently changed the bulb in my tv but it has a big dark spot on the left side of the screen. Do you know what this can be?

Posted by Anonymous on

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wjurls

  • 14 Answers

SOURCE: Gray spots on screen on a JVC HDILA model HD 56G 787

The HD-ila sets accumulate a lot of dust in the light engine. The worst offender is the little fold mirror just under the lens. I take my set apart about every 8 months or so to clean all the dust from the light tunnel and all lenses, mirrors, diffusers etc. The picture really regains it's pop when this is done. Unless you are a skilled technician though, I would recommend against attemptimg this procedure as you need to disconnect the individual color lcds. Check with a local service center to get it properly cleaned.

Posted on Dec 29, 2008

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Anonymous

  • 5 Answers

SOURCE: Gray spots on screen on a JVC HDILA model HD 56G 787

The gray spots are caused by dust on your lens, very easy to clean.

Power down the TV.

If you open the right side access panel (right side as you are looking at the front of the TV) you can see it in the middle, it's not very big. Using a scratch/lint free cloth, gently wipe off the lens or use a vacuum to **** up the dust being careful not to actually touch the lens.

Replace the access panel and enjoy your spot free screen.

Posted on Aug 12, 2009

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Chi Chu

  • 8457 Answers

SOURCE: Hi I have a JVC DLP HDtv that uses a Bulb JVC CL11...

It not the bulb,it still good.Ur tv have a problems known as convergence,"have colors shadows,colors misalinement,picture look like 3D" it dead.This convergence problems it happen to all DLP TVS sooner or later. The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts in the convergence board must be change to fix this.The shop will cost u $300-350 for parts and labors.

Posted on May 23, 2010

DrewPalmer04

Andrew P.

  • 325 Answers

SOURCE: I have a JVC HD-ILA

I only have bad news for you. This tv uses an engine assembly. It is impossible to replace the color wheel only. The entire assembly is quite expensive and wouldn't be worth replacing for a tv of that age. (By expensive, I mean roughly $400-$600, before labor). To replace the assembly the tv is basically broken completely down for this repair too and thus very expensive for labor as well.



Sorry for the bad news, but with no warranty you seem to be out of options. Some people choose to just live with the color issues, while saving for a new tv.



Thank you and have a nice day! :)

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Posted on Apr 06, 2011

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I just replaced bulb with new and after a day there is a dark spot on the screen


I have the same TV - I have a dark spot in the upper left hand corner. I have always thought this TV was dark. Be sure to get OME lamp. Cheaper ones are not worth it and can damage your TV more.
dlplampsource,com--Just a note if this ever happens to you. TV would not come on in the AM-Had no picture, but had sound. It was not the lamp, but the safety switch. It's blue and at the bottom of the lamp housing. As soon as I flipped it and replaced the back cover, the TV came on.

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Recently the left side of the screen is dark (about 4 inches). I put in a new bulb but the dark spot remains. Is this fixable?


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The life estimate for a bulb is about 5000 hours, and if the bulb is dieing before that is very obvious you have another issue on the TV

That Could be a temperature problem, like a cooling system is failing (usually the is two fan around that) or a lot of dust in the cooling system. another one could be temp sensor also maybe failing and is not sensing high temperatures and is no turning off the TV

Also make sure you have enough ventilation in the back of the TV


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1 Answer

Gray spots on screen on a JVC HDILA model HD 56G 787


The HD-ila sets accumulate a lot of dust in the light engine. The worst offender is the little fold mirror just under the lens. I take my set apart about every 8 months or so to clean all the dust from the light tunnel and all lenses, mirrors, diffusers etc. The picture really regains it's pop when this is done. Unless you are a skilled technician though, I would recommend against attemptimg this procedure as you need to disconnect the individual color lcds. Check with a local service center to get it properly cleaned.

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2 Answers

Gray spots on screen on a JVC HDILA model HD 56G 787


The gray spots are caused by dust on your lens, very easy to clean.

Power down the TV.

If you open the right side access panel (right side as you are looking at the front of the TV) you can see it in the middle, it's not very big. Using a scratch/lint free cloth, gently wipe off the lens or use a vacuum to **** up the dust being careful not to actually touch the lens.

Replace the access panel and enjoy your spot free screen.

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