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I have a plasma pioneer tv pdp-502mx. 2 problems 1. gets no sound 2. there is a line across the tv and it gets worse the longer the tv is on .....bad middle left distorsion of color. pls help....Thanks,.....Sam

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  • striker217 May 10, 2008

    tryed that

  • striker217 May 14, 2008


    Solution didn't work. Any other suggestions?




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try a hard reset by unpluging it for 4 hours and then plug it back in.


Posted on May 10, 2008

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  • Priya darshan May 10, 2008

    Usually this problem is associated with no picture other than the horizontal line. It is an indication of the vertical deflection amplifier failing.

    BUT, since you have a picture, it means you still have the vertical deflection. However, it could still be a bug in the vertical amplifier. It could also be a bug in the raster generator.


    ONE: Do a hard reset of the tv. Unplug the power cord for 4 hours, then power up again.

    TWO: Do the whacking test to make sure it is not a loose connection or cold solder joint somewhere in the works.

    THREE: Unplug all the inputs on the back or front of the set and reinsert them again; do this two or three times. It will make sure of a good connection. The multiple insertion cuts through any micro corrosion on the connection points.

    FOUR: Try a dvd player into the video inputs. Do you still have the line? This means the line is coming after the video input circuitry and is not associated with the tuner or rf input area of the tv.


  • Priya darshan May 10, 2008

    Please don't forget to rate or accept the solution

  • Priya darshan May 14, 2008

    Well now the only solution is to get it repaired.


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