Samsung PS50Q96HD X-main issue?

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  • PowerAmpFreak
    Badcaps Veteran
    • Feb 2010
    • 982
    • Sweden
    #1

    Samsung PS50Q96HD X-main issue?

    Hi all
    Samsung PS50Q96HD plasma.
    At first I thought this was the "famous" Y-buffer issue.
    But looking at the screen it tells me more it's an X-main issue, right?
    When powering up the set behaves like a cracked screen, certain random areas of the screen are completely black, but awake after a minute or so and grows more and more to a picture.
    What do you say guys?
    Attached Files
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    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: Samsung PS50Q96HD X-main issue?

      Good chance of X-main being bad. Can also be low Vs or Ve.
      Do you have a scope to check drive waveforms from X-main board?
      Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
      For service manual, schematic, boardview (board view), datasheet, cad - use our search.

        Comment

        • PowerAmpFreak
          Badcaps Veteran
          • Feb 2010
          • 982
          • Sweden
          #3
          Re: Samsung PS50Q96HD X-main issue?

          Vs and Va up to spec. Ve not checked yet.
          Noticed that after 10 minutes of operation, everything was warm except for x-main heatsinks being all cold.
          Will dig into the X board. Thanks as always Tom!

            Comment

            • tw2005
              Badcaps Legend
              • Oct 2011
              • 6458
              • Australia
              #4
              Re: Samsung PS50Q96HD X-main issue?

              I think there's some pico fuses on that too that may be worth checking

                Comment

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