Samsung pn42b430 - Sound w/o video

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  • jpurdy647
    New Member
    • Jun 2015
    • 6
    • United States
    #1

    Samsung pn42b430 - Sound w/o video

    Hello, I have a Plasma TV I aquired for free and am not positive how to diagnose this. I checked all the fuses for continuity and they were good. No capacitors look bad.

    When I turn the TV on, I get the power on sound, but the screen never updates, it remains the same grayish color as when it is turned off. I looked close to see if maybe the backlight was out, but it still did not look like it was displaying.

    I watched a video and it suggested maybe the Y Sustain, or the logic board.

    How would I go about confirming which board has failed, and if possible, which component?
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    • Hamie
      Badcaps Legend
      • Apr 2014
      • 1383
      • UK
      #2
      Re: Samsung pn42b430 - Sound w/o video

      Check the vsc test point on the ysus.
      Going from experience it will almost certainly be the ysus on this set, common failure.
      There are repair kits available for the ysus, should fix your problem. You might not need all the parts in the kit.

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