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Question about Panasonic PT-53WX53 53" Rear Projection HDTV-Ready Television

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Cannot adjust convergence, screen has rainbow effect

My Panasonic PT-47WXC43G has a rainbow effect across the whole screen, and adjusting the convergence doesnt seem to help. When watching cable tv, the problem is not so noticable, but when I turn on my video games, you can clearly see all three colors, in a ghost-like effect. Is this a bad bulb, or something else?

Posted by matt larson on

  • 3 more comments 
  • Federico Rivera Apr 08, 2008

    I own a PT-51G and blue is coming off convergence past the point that it would be adjusted with the remote's convergence in setup.

    I have adjusted this before using a procedure obtained from a Panasonic service center.

    The screens I entered showed a sequence of grids for each color and each section of the grid could be adjusted up/down & left/right for each square on the grid individually.

    Unfortunately I lost the procedure ! - Could any one out there send me the keys sequence to enter those screens. I have service manuals with me but they don't show that in there, only the list of parameters for each mode.

    Thanks, F

  • Rob McCutcheon
    Rob McCutcheon May 11, 2008

    hello i have a pt-53wx53 with a convergence rainbow problem

    what va==can it be

  • Anonymous May 18, 2008


  • Anonymous May 26, 2008

    I also have the same problem,took the back panel off the back of the TV.All three of the bulbs are working, cleaned off some dust and even moved the top of the bulbs it has a wingnut that you can move the top of the lens that adjusts the focus.It did not help out all,and ideas?

  • RDPLZ67 Nov 08, 2008



1 Answer


You probably need to change out the semiconductors. The parts are STK392-110. There are two of them, one for horizontal and one for vertical. Search it online more.

Posted on Oct 01, 2007

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Replace the convergence ICs they will be big black ICs and will have Part number on them example STK392-110
Mats Electronics has them for 9.95 each you will need 2 .

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you can get the following repair kit at the following link. which contains the parts and the CD which has the instructions on how to do the repair. The kit you need is called the PT-53WX53G, PT-56WX53G, PT-
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The reason you can not adjust it is because there is hardware failure in the convergence board.
Visit this website and ask them for a convergence assembly for your TV. Once you replace that assembly, the convergence might still need to be adjusted manually.
Good Luck.

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you have bad convergence IC's and possable 1 bad resistor
let me know and i will help you find them in the set if your are a good solderer - or call a tech
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