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Convergence problem with Pioneer P5073 projection TV?

Discussion in 'Electronic Repair' started by William Wiltse, Jul 25, 2004.

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  1. I believe that I am having a problem with my convergence STK on my
    Pioneer SD-5073 rear projection TV. The problem started a few months
    back and would appear more frequently as time went on. Now it is
    constant, appearing the entire time the TV is turned on. Here is the

    Everything looks good in the middle of the screen, but as you look to
    the outside edges (approx. 10" on the left and right sides of the
    screen) there appears to be blue and yellow shadows outlining many of
    the images. The further you look toward the left and right edges, the
    further the separation of the blue and yellow shadows.

    Otherwise the TV is working fine. I have done a good amount of
    research and believe the problem may lie in a failing STK4277SL chip.

    What I am looking for is confirmation that this will resolve my
    problem. If there are other causes for this kind of behavior, could
    someone let me know what else I might check?

    Thanks in advance for your responses :)

    Bill Wiltse

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  2. Art

    Art Guest

    That device, probably poor solder connections on that board, and maybe small
    value resistors that may have changed values.
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