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Samsung HL-S5679W No video No sound

I didnt think it had a lamp or ballast because it is an led tv also would that cause there to be no sound?

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  • mark pasley Feb 05, 2009

    if all three leds go bad would that cause there to be no sound?

  • mark pasley Mar 10, 2009

    I had a tv repairman come out and he said the led's were bad so I replaced them and it still didnt work. Then the company said they had replace the whole led engine, so they came out and did that still didn't work. So I just troubleshot it myself. The input power was good to main power supply board but the output to the led driver power board was bad so i inspected the card and found some bad caps. I read about this in some other posts and I changed 2 caps out earlier but I missed two others that went bad. I replaced them with the same caps that were in there but i hear they need to be higher voltage. Anyone know a good cap site.

  • thielectronick
    thielectronick May 11, 2010

    this might be answered on another thread.. all 3 leds = lamp failure

    in this case, LED lamp failure, or the LED power board.

    there are fuses that will blow on the board



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All 3 leds on the front panel blinking = lamp error.
if the tv doesn't come on, it may not put sound to the speakers.
you need to focus on the error at hand.. does the tv come up and appear that it is running and not turning itself off (shutting down)?
if it runs and doesnt turn off, then the audio matters, otherwise focus on the other problems.. you won't have audio on certain inputs, etc, don't use that to troubleshoot unless your tv is running and not shutting down.

Posted on Feb 06, 2009


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