Question about Panasonic PT-53WX42 53" Rear Projection Television

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Blue looks like it is caved in to the center

I got some pic's below. This is what started to happen to my projection tv few days ago.
First I thought it was a lose cable or something to do with the connection.
every input on the tv have the same problem, looks like blue is caved towards the center. even when you first turn on the tv the channel
on the upper left have colors shifted. so I'm sure it's something to do with the tv, not the cable box. blue is so far off even with color calibration I can't move it that much.
Maybe the projector light at the back is dying or some thing. This tv is 6 years old. How long do prejector light should last I don't know. any input would be helpful...
[img]http://www.geocities.com/nurik_nurik/1.JPG[/img]
[img]http://www.geocities.com/nurik_nurik/2.JPG[/img]
[img]http://www.geocities.com/nurik_nurik/3.JPG[/img]

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  • nurik_nurik Nov 15, 2008

    Just fixed the problem yesterday.

    Replaced the convergence correction IC's



    thanks..

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  • Master
  • 934 Answers

Need to replace the convergence amps and test / replace one or more of the 2.2 ohm resistors in the yoke return out in front of the amps.
That unit uses two stk392-110 Sanyo amps, buy originals not the chineese knockoffs. Acme Sales in Florida can sell youthe amps and resistors.
Bill

William Rayburn, CET
Premium Technologies
PO Box 442
Long Beach, WA. 98631
360-642-4993
premtech@willapabay.org

Posted on Nov 15, 2008

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Posted on Jan 02, 2017

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This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

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Here are some pics of convergence problems.


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Common 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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69189a5.pngSOLUTION

You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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http://servicemanuals.vstore.ca/

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