Question about Mitsubishi WS-65809 65" Rear Projection Television

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Mitsubishi WS65909 The picture on my TV has some serious problems. The green and red lights don't match up. In other words, in one area the picture shows up in red and over a few inches the other part of the picture is green. The overall picture is terrible. I am wondering if one of the projection bulbs has blown. Any assistance would be appreciated. Dave

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  • wdavidrankin Jun 25, 2008

    Dan,



    Thank you for the quick response. I can solder and will have to get the tools. If I can't figure it out, I will use your service. I would do it now, but don't have the tools handy or the manual. I know that the circuit board pulls out, but can't remember hos to do it. I'll figure that out soon.


    Regards,

    Dave

  • wdavidrankin Jun 26, 2008

    Dan,



    I got the back off and the motherboards partly out. I don't see any large black IC's or anything like STKxxx on anything. Thanks for the assistance.

    Dave

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I have what appears to be the same problem, on a 55 inch 2002 model. A good slap on the top or side provides temporary relief. I am curious, is that 'workaround' consistent with the analysis provided above regarding ICs?

Thanks

Wayne (Clearly not a hardware guy :>) )

Posted on Jun 30, 2008

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This is a convergence problem and can be as simple as bad connections on the pins of the convergence ICs to defective ICs. If you can solder, try resoldering the pins on the ICs, If that fails to resolve the problem, replace the ICs. These are large black Ics attached to a heatsink and should be marked STKxxx. Depending upon the exact ones in your set, the cost should be between $15-$25 each (there are 2).

Keep us posted.
Dan

Posted on Jun 25, 2008

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