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After awhile, picture goes black. Front led is also out. Remote functions work, and sound is ok. Unplug for an hour, it works ok again, but goes out after awhile again

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  • Frank Feb 08, 2010

    samsung LNT4032hx

  • Frank Feb 08, 2010

    no image noticed I tried what you said

  • Frank Feb 08, 2010

    Sound stays ok. My soldering skills are fine. Your thoughts of it being a problem in the inver ter/backlight might be on track.. Question is how to trouble shoot it. I have no schematics, so was hoping that it might be a recurrent problem on this model, and for a direction based on this.

    Frank

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Please let me know the make and model of your tv so that I can help you with your problem.

Sai.

Posted on Feb 08, 2010

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  • eagle338
    eagle338 Feb 08, 2010

    Ok.. Try these simple diagnostics and let me know the result
    1)When the picture goes black darken the room and see if you notice a dull glow on the screen
    2)If there is no glow then flash a torch on the screen from a close distance and see if you notice a dull picture. Keep flipping the channels to make it more noticeable.

    Let me know your observations,
    Sai.


  • eagle338
    eagle338 Feb 08, 2010

    If you have sound then it is usually not a power board issue, but since the sound is out I am inclined to believe so. How good are your electronics/soldering skills?

  • eagle338
    eagle338 Feb 08, 2010

    Replacing the inverter board is usually very easy. It has a few connectors on it that you have to unplug from the old board and plug into the new board. There are two inverter boards in your set -master and slave. I have managed to locate only the master though. If you can take off the back cover and let me know the part number if the inverter slave then I can try finding it for you. You can get the master from the link below for around 40$
    http://www.shopjimmy.com/catalog/product...


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