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Panasonic 27 Picture shrinks at top and bottom of screen.Sometimes a line will run across screen. Once in awhile picture returns to normal

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  • katenate01 Feb 04, 2008

    banged outside of set with hand and this seems to correct problem.Thank you

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  • Master
  • 6,966 Answers

Hi,

Initially I would suspect a problem in the Vertical section of the TV. This could either be the capacitor or the IC itself. In some instances, there are no component failures but rather cold solder joints.

Based on your post/description of :...Once in awhile picture returns to normal...", I am more inclined to think that it is a case of cold solder. which can easily be corrected by reapplying heat on the IC pins or the other associated/nearby components with the use of a soldering iron. Care must be exercised since TV units still pack high voltages even when off and unplug.

Hope this be of help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Posted on Feb 04, 2008

  • Louie  Role
    Louie Role Feb 04, 2008

    Banging made it worked just confirms the cold solder connection. Soon as the unit runs for some time and heats up, problem will recur.

    Nonetheless, am glad that it works.

    Cheers.

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