Please help, is my Panasonic plasma ZT65 dead?

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  • HumanTT
    Member
    • Jan 2020
    • 11
    • United States

    #21
    Re: Please help, is my Panasonic plasma ZT65 dead?

    Originally posted by linksys1127
    Looks like your SC board or the board on the left is bad. 900 ohms is way too low. You'll probably find some of the ICs mounted to the heatsinks shorted. You can also check the SD and SU boards for shorted buffer ICs. Those are the boards that are mounted between the flat ribbons that go to the panel and the left board. Here's a link to a video on how to do that.
    https://youtu.be/-JVLWpcIxJQ

    Ok I will test it tomorrow, just to rule them out. Thanks for posting a video of the test you asking about, it makes following along easy lol.

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    • R_J
      Badcaps Legend
      • Jun 2012
      • 9535
      • Canada

      #22
      Re: Please help, is my Panasonic plasma ZT65 dead?

      Originally posted by HumanTT
      I believe a plasmas has 3 sheets of glass, but I could be wrong. The front glass that you can touch has a IR filter on it, and then you have two sheets of glass that have the gas in-between them that is sealed. I don't believe you can see the back glass.


      Edit

      https://video.nationalgeographic.com...c-7b3d9d680000

      https://www.youtube.com/watch?v=YlS24yOZZSk
      That front sheet of glass was used on some of the older plasma tv's, some early 42" Panasonics and other brands had them, but most of the newer plasmas did'nt. The glass you could touch was the actual plasma panel.
      The best way to check the SS and SC boards is when the tv is powered on, then you can check the Vs voltage. Checking the resistance across the Vs pins won't tell you much unless it is shorted. It would be like measuring the resitance across the AC cord to find a problem on the main board in the tv.
      Last edited by R_J; 02-12-2020, 11:14 AM.

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      • linksys1127
        Senior Member
        • Sep 2016
        • 121
        • United States

        #23
        Re: Please help, is my Panasonic plasma ZT65 dead?

        Thank you for clearing that up R_J. I was steering you wrong HumanTT sorry about that. I've obviously got a lot to learn about plasmas and the folks here are experts. The defect you have wouldn't be a bad buffer board. That would be a defect that would run from one side of the screen to the other so your buffer boards are probably ok.

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