Question about Mitsubishi WT-46809 46" Rear Projection Television

1 Answer

The picture bows out toward that edges, with the colors skewed. If is hit the side of the TV, it fixes itself for a short time.

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  • mbosy Aug 30, 2010

    Instructions for replacing convergence chips in WT-46809

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  • Mitsubishi Master
  • 14,553 Answers

If it is a WT-46809 it uses two of the STK-392-570 CONVERGENCE CHIPS.

I have repaired a lot of these sets and they often develop internal bad connections---most of the time resoldering them will not help--both chips have about 18 pins and what I have seen (dozens of times) the pins break loose inside the chips.

Considering the time and trouble just to get at them and the fact you can buy a pair of the chips on Ebay for about 14 dollars plus shipping I just replace them and problem is gone.

I have start to finish, step by step instructions for this repair in this set--tell you everything you will need and how to do the repair.. I am going to post a photo so you can see what the chips look like.

If you want the instructions let me know and I will post them here for you for free.

If this has helped you rate this solution as I do this here for free.

SD TECH

Posted on Dec 09, 2009

  • 1 more comment 
  • SD Tech
    SD Tech Dec 09, 2009



    Here is what the chips look like.


  • Steve Carcaterra Sep 23, 2010

    please post instructions for fixing mitsubishi wt-46809 convergence problems

  • SD Tech
    SD Tech Sep 23, 2010

    If you want instructions post either a question in the free section Attention SD TECH OR THE paid section--as little as 6 dollars there.

    I do not follow up on requests for help in this way.

    SD TECH

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bb0cf99.pngSOLUTION

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Do you mean that at the top of the picture, the red color has shifted downward, bowed towards the center? If that is what you see, one color suddenly bows toward the center on any side of the picture, then it means that one of your convergence IC's has burned out and needs to be replaced. It is a good idea to go ahead and replace both STK392-110 IC's with the newer improved STK392-150's. If you have never replaced convergence IC's and realigned the convergence circuits in a projection TV then allow a qualified tech to handle it for you.

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