LG Plasma 60PG70FD image noise and Self test

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  • nickba
    New Member
    • Mar 2014
    • 5
    • australia
    #1

    LG Plasma 60PG70FD image noise and Self test

    Hello,

    I have a LG 60PG70FD Plasma TV and suddenly the image became noisy with pink grain. It is an intermittent problem, sometimes it goes back to normal and after a few seconds it becomes noisy again.

    I removed the ZSUS and YSUS boards. I tested for shorts and didn't find any. Removed some caps and tested ESR and capacitance, all OK.
    I resoldered all ZSUS DIP components(including the inductors coils).
    For the YSUS I resoldered all the inductors.
    Vs and Va voltages are correct.
    -Vy voltage is correct.
    Z bias voltage is correct.

    While trying to diagnose it, I found a way to activate the self test of this TV, as I searched everywhere and didn't find it. You just need to short pins 1 and 2 or 3 and 4 of the connector shown in this picture I took.
    In my TV, the self test have the same noisy picture.



    Do you have any tips of how to solve this issue?
    Attached Files
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    • dick_barton
      Badcaps Legend
      • Aug 2015
      • 6642
      • Wales
      #2
      Re: LG Plasma 60PG70FD image noise and Self test

      There's a possible page that could help
      https://www.badcaps.net/forum/showpo...3&postcount=58
      Willing to help but I'm no expert.

        Comment

        • nickba
          New Member
          • Mar 2014
          • 5
          • australia
          #3
          Re: LG Plasma 60PG70FD image noise and Self test

          Thanks for replying. Unfortunatelly the suggested link didn't help. Any other tips?

            Comment

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