Question about Panasonic PT-50LC14 50" Rear Projection HDTV-Ready Television

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Panasonic Polarizer Filter

I have the same model tv, and I am experiencing the same problem.
Is this something that a non-technician can replace, or do I need to bring it to a service center?

Thanks,
Rich Mehner
rjmehner@aol.com

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Service center.

Posted on Aug 22, 2008

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1 Answer

Shuts off and flashes orange twice ever 5 seconds. How do I secure lamp cover or replace the lamp on a Panasonic PT-50LC14 TV?


The same thing happened with mine. I had to have a technician come out & replace something called a "ballister". It cost me about $300.

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A screen comes up and says time to clean air filter, Where is the air filter located?


I just experienced the exact same thing. The tv will shut off if it gets too hot, and a clogged air filter will make it too hot. My tv is still under warranty, but I watched the technician do it. He removed the front and back part of the tv. He got down to the bulb enclosure in the rear of the tv, which is where the filter is located. He used my dirt devil and a brush to clean out the filter and the whole general back of the exposed tv. The he put all the pieces back on the front and back of the tv. Hope that helps!

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I feel bad for you having such problems with the vendor and the technician too.
The location of that filter could be a small window in the back cover itself. could be a plastic window to the left side of the unit and is only a piece of plastic poliuretane kind of black sponge about 5 by 3 inches size .
What im interested telling you about the shut down condition and is maybe even most important than where is the air filter (who is one of the more than ten posibilities why the tv goes to shut down.
Note:
if the air filter is totally obstructed i would give one of ten probabities of suspicious why the tv shuts down:
first because the tv's air duct is not really isolated. The fan can eat air by any side of the air filter base as i said if the filter is totally obstructing which is really extreme. besides maybe the other 2 fans could help to cool down the unit in that case scenario. In my experience Most time the air filter holds tons of dust but is not totally obstructing the air passing, and really some other problems are in the set.

This is the really critical to know: if any of those fans stopped or maybe any sensor is overheated or the lamp is coming to dead or who knows.. a diagnosis is needed for this symptom really common in DLP technology.

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1 Answer

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Mar 03, 2009 | Projection Televisions

1 Answer

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You are facing this problem due to a burnt polarizer filter just past the blue filter for the blue chip.
This TV has a three chip design with red, blue and green chips.

Get new polarizer for your tv from panasonic .

Mar 02, 2009 | Panasonic PT-50LC14 50" Rear Projection...

1 Answer

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Seems to me you maybe experiencing a convergence issue rather than the color converter. (Don't know what he means by that for that I am an a tv repair technician).

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Panasonic Model #Th-42PA25


it is just an example for the part that should be replaced that is why i suggested that a service technician should check the tv physically to determine the part that needs to be replaced.

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The light engine may be dirty with dust, the polarizer filter burned, or the LCD elements burned.

As a last-ditch effort, the light engine can be taken apart and carefully cleaned using compressed air.

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I received a new blue polarizer unit from Panasonic. I installed it and it fixed my problem!!!

Duane

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