Question about Samsung HPN5039 50 in. Plasma HDTV

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How do we know if its capacitors or power supply?

If the capacitors are bad, will the sound also fail?  Or does no picture+no sound indicate that it is a power supply issue?

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  • dmesserly Jul 25, 2008

    Thanks for the quick response, Jaime867.  


    - screen is black, no picture
    - power light remains red when pressing the power button (does not turn green as it normally would when the TV is on)


    The TV is at the shop right now, and I was just trying to get some confidence in their diagnosis of a bad power supply board.  We are fairly new to this particular repair company so my trust level in their diagnosis is not quite there yet.  


    They claim that no sound indicates the power supply board.  I can't verify there is no sound, because when it was at our house, our sound ran directly from the cable box to a surround sound system and the TV sound was disabled.

  • dmesserly Jul 25, 2008

    BTW, we had no video distortion or other problems prior to the screen going completely black.

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What is the problem with your TV?
It depends where or how the capacitors are connected and the function(s) they perform in the circuitry.
If the main capacitor(s) fail then there could be some intermittent ON/OFF or a buzzing noise getting to the speakers, bad or distorted video.
If you've have seen the power board on your plasma, you will see a few of them in there.

Posted on Jul 25, 2008

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