Question about Toshiba 50HP66 50 in. Plasma Television

3 Answers

I have snow, colored at some times. Goes from light to heavy.Not so bad that you cant enjoy the tv but when the screen has alot of dark colors to display you can really see it. Does not matter what input I am using. The screen is totally black when I turn on the set then as soon as the tv sends a signal to the screen i get the interference. I just bought the service manual for the set and can not fin anything close in the troubleshooting guide. PLease help!!!

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  • molidorjohn Oct 02, 2009

    it seems there has to be someone else out there with the same problem.
    It seems that the issue gets worse the longer the TV is on. I also think I noticed a correlation to electrical devices being on in the apartment.

  • molidorjohn Oct 02, 2009

    This is not a signal related problem.
    Same issue regardless of DVD via HDMI, SAT via S video or Playstation 2, via componet video inputs.
    It is more prevelant in the portion of the screen that is always in use. very little at the top and bottom of screen that are not in use as much.

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  • Master
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I suspect that the TV is not the problem and that you may have a bad signal with noise coming through. Have your cable provider check the line.

Posted on Oct 02, 2009

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  • Master
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It generally happens when the video signal is poor in quality. the poorer it is the more snow you get. you can also get snow if the fine tuning to channels is not perfect. the farther away you are from the perfect tuning, the more snow you get. Since it is on all the channels from all the inputs, I presume it is poor signal quality may be due to a poor quality or faulty connector/cable.

Posted on Oct 02, 2009

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To ensure that this is not interference, you can have the tv moved from its location and isolated from other equipment or appliance in the house and see if the snow or problem would disappear. At times this may be attributed to signal or low signal problems. This can also be caused by voltage problems. You may want to check the power supply if there is any leaking capacitors or loose parts there. Some TVs can have the voltages adjusted. See if you have one but do at your own risk. If these does not work you may have a problem with the plasma display panel which will need replacing.

Posted on Oct 02, 2009

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