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Qsc Dca 3422 Amp shot dead

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  • Qsc Dca 3422 Amp shot dead

    Click image for larger version

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ID:	965349 My qsc dca 3422 was plugged into two Ev 12 boxes. after a rumble of sound, it stopped dead. all leds are off.
    Can use the rear data port to diagnose the problem?
    Is there any fuse ?
    Please help

  • #2
    Probably the internal fuse has blown unfortunately as the power supply is a switch mode device, it is likely to be short circuit and require specialist repair. Click image for larger version

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ID:	965352
    Support for Fender, Laney, Marshall, Mesa, VOX and many more. https://jonsnell.co.uk
    If you can't fix it, I probably can.

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    • #3
      Thank you John
      so it’s not just a simple fuse. That would’ve saved it
      • Exclusive PowerLight power supply for great bass
      From QSC website

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      • #4
        You will have to investigate, I can only guess as I cannot fault find it.
        Support for Fender, Laney, Marshall, Mesa, VOX and many more. https://jonsnell.co.uk
        If you can't fix it, I probably can.

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        • #5
          You never know, it may be just a blown fuse

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          • #6
            schematics attached
            Attached Files
            Originally posted by Enzo
            I have a sign in my shop that says, "Never think up reasons not to check something."


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