Question about JVC HD-52G786 52" Rear Projection HDTV
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
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
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
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
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! :)
Posted on Apr 06, 2011
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