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Re: Pincushion like problem
You did not mention that this cost any money, so I assume that this was a warranty repair. There is the possibility that the new light engine is defective (I see it all the time), or TV needs adjustment via service menu, not mechanical. Call company back or call manufacture to get another company in your area to come out and repair your TV properly. Don't quit until your TV is working properly. Good luck.
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SET uses a optical light engine--lamp which is quite hot shines into the engine---blue is first to get the light and heat and is usually first area in the lens and baffles to get damaged(loss of blue leaves red and green which equal a yellow screen.
The light engine of your TV is becoming weak. its is a common problem of 3LCD rear projection TV. You need a repairman to fix this kind of trouble.. The light engine replacement is expensive, It costs like a new TV set.
Hi,If there's any discoloration,pixilation or hues on the tv it will be an issue w the light engine's 3 lcd chips.This link explains how the lcd technology works: http://www.youtube.com/watch?v=ZLLHnQ4y-wo Basically there's 3 LCD chips that create the colors and picture by blending together all when the light of the lamp goes through them.When they start to melt they will start to show the symptoms.You will need to replace the 3 lcd chips or replace the light engine.Good luck and God bless your house!
This, sadly is getting to be a very common problem with all Projection LCD TV's Colored Blotches on an LCD Projection TV are usually caused by defects or marks on filters or lenses on one of the LCD panels themselves which are all located in the light engine (or optical block) First confirm that the lamp or main lens is not discolored by removing the lamp (unplug set and let cool before removing!) and visually inspecting the lamp itself and the lens that it shines onto. The light engine is an expensive part ($600-$1200) to replace and requires major disassembly. Have a tech confirm-Get an estimate -Be sure to vote/rate me if this helped Thanks!
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!!!
I have the same problem with the yellow blotch that keeps growing. I had a certified Panasonic technician look at it. It took him 15 minutes and $96 to tell me that the light engine had failed and it would cost $1800 to fix. I contacted Panasonic and they offered me a plasma at 20% off of their MSRP. It didn't amount to much when I realized I could negotiate for about the same on my own. The TV is 4 years old and I paid $2500 at the time. I doubt i will choose Panasonic again.