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Toshiba color problems

Discussion in 'Electronic Repair' started by [email protected], Sep 24, 2005.

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  1. Guest

    I have a Toshiba model #27A33. Problem was picture pulled in on both
    sides, and the color was completely distorted. I replaced the 15V zener
    diode (D603) and had to repair the burnt PCB foil connecting to this
    and the video processor. This fixed the width problem, but not the
    color. I have 2 problems - while displaying a color bar signal, the
    left color bar is green, but approx the bottom half is blue. The far
    right color bar is blue, but the top portion is magenta. Iv'e checked
    the degauss circuit and think it is operating. Second problem - the
    colors of the color bars are changing color. The green magenta will
    slowly turn blue, then return to normal. Overall, this is what the
    color bars look like - the colors of the vertical bars have been tilted
    about 45 degrees to the left. Could this be a video processor problem
    due to the diode failure, a purity problem? Any suggestions would be
    greatfull. Thanks group.
     
  2. toshiba sets tend only to show impurity at the top of the screen with a
    faulty possitor
     
  3. Art

    Art Guest

    Attempt to manually degauss the set, if that tends to cure the colour
    distortion then troubleshoot the degauss circuitry, including the thermistor
    in the degauss circuit.
     
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