Go to the Zenith web site and find the link for Class Action lawsuit. LG/Zenith will pay for in home replacement of the light engine which may be your problem. There is an 800 number on the site to call.
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I have the same exact TV, with the same problem!
I found out that Zenith has a class action litigation open thru July 2010
Your Optic Light Engine is Defective and Zenith has to replace it for free
Or give you a new 50" Plasma or 44" LCD.
Here is the link with all the details ** http://www.zenithservice.com/index_b2c.jsp
Call the service center and let them know what your problem is and that you know
about the litigation. They will have a tech call you and troubleshoot it over the phone.
Then they will order the Light Engine and have a Tech come to your house and
replace it. It will cost you nothing!!!
No. I would suspect it being a Optical Block issue. I is not a pretty repair not to mention the cost factor. If you could get in touch with Hitachi Customer Service they could lead you to s service facility that could comfirm what I think.
Obviously, check the fan to make sure it is running. Second, see if there is anything obstructing the fan, and then make sure all filters and fans are clean and free of dust build up.
The light engine on your set is burned out.
This is a very complex replacement.
I hope your tv is under warranty repair cause it is expensive.
It happens because the heat from he lamp over time burns out the lcd's that create th ed and blue leaving the gren which is always furthest from the lightbulb (YOUR tv has four lcd's in a row..red, blue, gren and then black.
If you wish to try and replace it yourself there are places online where you can buy a replacement engine.
For a really good step by step with pictures guide to replace it go to
http://www.fixyourdlp.com/blog/?p=34
For a good place to purchase the lamp go to http://www.discount-merchant.com/Original-Zenith-Projection-LCD-TV-Replacement-Lamp-p /zenith_m52w56lcd_lamp.htm
I have found they have the best price on these replacement lamps. You might also check Ebay.
It could be as simple as dust contamination in the LE or lcd chip. You need a clean room to work on this area of the unit and NOTHING you can do there would make that possible, short of spending a few thousand to build one. Before we added a clean room enviroment we simply pulled the LE and sent it in to PTS - who has one and reinstalled...
In your case take it to a qualified shop and you'll save yourself a lot of grief..
Bill
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