Question about Panasonic PT-51HX41 51" Rear Projection Television

2 Answers

Picture distored, wonky colours and bowed at the bottom [PIC Inside]

To help better I am going to attach a photo. This TV was manufactured in 2002 and has NEVER given us any issues. Just this morning upon powering up the TV viewed as it does now. Distorted picture, pictured bowed at the bottom and colours really messed up.

The video source is DVD, i grabbed the first one i could (LOL).

Anyways, just looking for a yes/no it can be fixed and possibly a cost.

Thanks in advance! :)

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  • 2 more comments 
  • skyhawk04 Jun 09, 2008

    Same issue here. Never had an issue with the TV and today my picture looks just like yours. I saw the response posted to your problem. Did you try this yet? Did it work? What is an IC and where did you buy yours?

  • Anonymous Feb 18, 2009

    Had the same problem today

  • Anonymous Mar 03, 2009

    Turned mine on this morning and had the same problem as described here.

  • blunte2000 Mar 20, 2009

    I too have the same problem. However, I've been able to isolate the problem by covering the green projector (there's also a blue and red projector) with a piece of cardboard to get the picture back to a somewhat normalcy. I figure there's a connection between each projector and the independent circuit board each have. Will gather more information as I experiment more with transistors and switches.

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  • Panasonic Master
  • 3,459 Answers

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.
Picture distored, wonky colours and bowed at the b - 701cb04.jpg

f0900cb.jpg
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 directiPicture distored, wonky colours and bowed at the b - 2c07611.pngnvergence 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 distored, wonky colours and bowed at the b - 578ba6c.jpgef="http://www.fixya.com/support/t1631691-red_aura_in_middle_55_phillips#" >Picture of a set that needs the fluid changed.


TV set after fluid change

65af323.jpg

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.

Posted on Mar 26, 2009

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  • Master
  • 4,234 Answers

Relatively easy to fix. If you can solder, you can probably fix it yourself. Look for a couple of large black ICs attached to a heatsink. They should be marked STKxxx. These are the convergence ICs. Try resoldering the pins first. If that fails, replace the ICs. They will be about $20 each or so.

Keep us posted.
Dan

Posted on Jun 03, 2008

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