Question about LG 50PC3D 50 in. Plasma Television

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I have a LG 50PC3D and the other night over a sudden the TV turned off on its own. We tried turning it back on and all we got was 2 or 3 green clicking light and then red steady light, which is the off mode. We replaced the power supply assembly and it still did the same thing. Please help, any ideas what it can be?

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  • mflores_rive Sep 04, 2010

    What is a Y-sus board, never heard of such board. where is it located?

  • mflores_rive Sep 04, 2010

    What is a Y-sus board, never heard of such board. where is it located? are you still there?

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  • LG Master
  • 11,800 Answers

It's most likely the Y-sus board (or in rarer cases the Z-sus), but to be sure you must do a few tests on the voltages to the plasma screen - Vs (~200v) Va(~70v) V-setup(~120v) and ZBias(~100v). The exact values are written on a sticker on the panel .

Posted on Sep 04, 2010

  • Azrael SRL Sep 04, 2010

    The Y-sus and Z-sus boards are the boards that transform the raw image data signal (5 volts peak) coming from the processor from the mainboard into the signal that is displayed by the plasma panel (~200 volts peak for full white brightness). If they are faulty then nothing is displayed and the source cuts off - they are the main consumers in your tv.

  • Azrael SRL Sep 04, 2010

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