Question about Panasonic PT-52LCX65 44" HDTV

4 Answers

PT44LCX65 Has spots and Haze

There are 2 green spots in the upper left and 1 red in the lower right.
There is also a red haze on all light color images especially peoples faces

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  • Anonymous Feb 11, 2008

    one red dot in lower right corner and two blue on the left side...darn it

  • Lynnie793 Feb 22, 2008

    My Panasonic PT44LCX65 has two green spots on it too. I just got off the phone with Panasonic and they recommended that I do something with the color adjustment controls. I doubt that will work, but I guess you have to try everything. I'm going to keep working on this and will post what I find out. They did mention that the eprom upgrade doesn't cover every model.

  • borketv Apr 18, 2008

    having same problem. green dots and now red haze. i called my local repair shop and they never heard of "eprom upgrade" and of course i cant talk to a living person at Panasonic. any suggestions?

  • Anonymous Sep 03, 2008

    Had the same problem on my pt44lcx65 and they did the eprom upgrade and now the green spots are gone!

  • Anonymous Mar 29, 2009

    I have exact same problem with my pt61lcx35.

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GOOD DAY, YOU ALL; THE PART NUMBER FOR THIS TOOL IS (LSUQ0100), IT IS NOT PRICEY.

GOOD LUCK, big IRISH.

Posted on Jul 30, 2008

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Repair Bulletin #200801001 posted 6/23
Call Panasonic and ask for free repair if you have this problem

Posted on Jun 06, 2008

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The "eeprom intialization and reprogram" is the fix for the green spots. Our Circuit City warranty was the way to go. I got no where with Panasonic. The tech said it could have cost a few hundred if not for the warranty.

Posted on Feb 29, 2008

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Panasonic has a fix for this problem. No need to replace the light engine. Just have a service tech do an "eprom upgrade" - Fixed mine.

Posted on Feb 01, 2008

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1 Answer

A blue haze has appeared on the right half of the


This can be ( Haze (blue) i a failure of the color engine or convergence chips on the Sustain board/s This is not a DIY on this set. Manufacturer recommends replacement of all 3 boards when one fails. Otherwise the new board will cause a domino effect.

# nerw boards ($300) + labor. It is not a case of playing board swap jockey for a fix. It requires voltage balance between boards and the ability to measure voltage from circuit diagram points and to be able to correctly retune the convergence via a generated hatch pattern on the screen

Thanks for using FIXYA

Nov 26, 2009 | Sony Grand WEGA KF50WE610 50" Rear...

2 Answers

I have changed my rear projection lamp and now the picture is green can you tell me what is causing this please.


It sounds like your light engine is defective. My Projection LCD had this happen and it started with a growing blue haze, others experienced a yellow haze, I suspect yours is manifesting with a green green haze.
It is a very expensive fix, depending on the age of your set, you may find it cheaper to replace it with something new, because a light engine itself costs nearly $2000 and another few hundred to install and align, not something a do-it-yourselfer is able to do

Oct 01, 2009 | Televison & Video

2 Answers

Purple/white haze spot


Go to the Zenith repair site. This has been resolved in a lawsuit. Zenith will fix it free of charge through 7/1/2010. The shop just picked my up to replace the light engine free of charge. Call 1-800-228-1757, have your model number and serial number, and where you purchased it. Here's the neat thing-the question I asked is "have they fixed the problem with the light engine, or is it going to keep going bad?" If happens again (blue lines/spots) before 7/1/2010, they'll replace the TV with a new and different TV of equal value!

Jul 09, 2009 | Zenith E44W46LCD 44" Rear Projection...

1 Answer

Blue haze on the lower part of rear Projection TV


Your TV most likely has one or more possible problems.

Problem #1: Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem
  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
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Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.


Problem #2 CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

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TV set after fluid change

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2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

Mar 23, 2009 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

Yellow haze


Hi...the yellow haze is probably the blue filter is burnt and needs replaced. This is very common in Zeniths. There are 3 color filters in the Zeniths blue (pinkish in color), green (grayish in color) and the red (it is red). The #1 problem in this TV is the blue filter is burnt and it is an easy fix. It could also be the LCD cube is bad. I would try the blue filter replacement first. It will probably do the trick.

Mar 24, 2008 | Zenith E44W46LCD 44" Rear Projection...

1 Answer

Yellow haze


The blue filter is burnt out. A very common problem in Zenith DLPs. There are 3 color filters, 1 blue (a pinkish color), 1 green (a grayish brown) and 1 red (it is red) they give you your colors for you picture. This is a simple fix.

Mar 23, 2008 | Zenith E44W46LCD 44" Rear Projection...

1 Answer

Yellow Haze Center Screen


The blue filter is burnt out. A very common problem in Zenith DLPs. There are 3 color filters, 1 blue (a pinkish color), 1 green (a grayish brown) and 1 red (it is red) they give you your colors for you picture. This is a simple fix.

Mar 19, 2008 | Zenith E44W46LCD 44" Rear Projection...

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