Maxent MX-50X5 screen flickers breifly

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  • high-tech
    Senior Member
    • Sep 2010
    • 197
    • USA
    #1

    Maxent MX-50X5 screen flickers breifly

    Hi fellas, I got this 50 inch maxent plasma television and the screen won't stay on... My friend says he could still hear sound and the power stays on.

    So I checked the va and vs voltages and noticed vs was low at 190 volts so I brought it up to 196 and va was ok at 60 volts. didn't change anything so I'm thinking I may have y-sus and or buffer issues. I noticed when the screen does come on briefly it is fully lit without any horizontal black stripes which to me without testing buffers for shorts means the buffers are probably ok.

    Help diagnosing this would be appreciated, I don't have much knowledge on these plasma televisions
    Tags: None
    • high-tech
      Senior Member
      • Sep 2010
      • 197
      • USA
      #2
      Re: Maxent MX-50X5 screen flickers breifly

      I forgot to upload pics so here they are...
      Attached Files

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        • high-tech
          Senior Member
          • Sep 2010
          • 197
          • USA
          #3
          Re: Maxent MX-50X5 screen flickers breifly

          SUS boards and buffers
          Attached Files

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            • high-tech
              Senior Member
              • Sep 2010
              • 197
              • USA
              #4
              Re: Maxent MX-50X5 screen flickers breifly

              Help Please, if this is not enough info, ask and I can do

                Comment

                • ed jones
                  New Member
                  • May 2016
                  • 2
                  • usa
                  #5
                  Re: Maxent MX-50X5 screen flickers breifly

                  i'm leaning toward the y-sustaian board

                    Comment

                    • cliff_hootarski
                      Badcaps Veteran
                      • Jul 2006
                      • 411
                      • USA
                      #6
                      Re: Maxent MX-50X5 screen flickers breifly

                      If you could get the test patterns going, you could narrow it down a bit. It uses LG parts and I've looked at a picture of the control board, but I could not find the "test pattern" pins to short. That's about as much advise I can give.

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