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Hammond D152 percussion problem

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  • Hammond D152 percussion problem

    I have a D152 with a percussion problem.  When I first switch it on, the percussion will sound on only the first key pressed after the percussion was still on.  Then, nothing.  Does anyone know how I can fix this problem?  Thanks!

  • #2
    Re: Hammond D152 percussion problem

    It is monophonic. You have to release the key before it will retrigger.

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    • #3
      Re: Hammond D152 percussion problem



      I know it's monophonic, but even if I release a key, it never retriggers.</P>

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      • #4
        Re: Hammond D152 percussion problem



        Dendrite build up. You need to apply a small amount of voltage (one or two9 Volt batteries or a model railroad power pack/transformer) to ground (amplifier chassis) and the K terminal (usually a blue wire) of the preamp. Do it with percussion engaged and disengaged. Some people use DC High Voltage from the organ itself but THERE IS NO REASON TO DO THIS! </P>


        Also make sure your organ has been unplugged for awhile before working on it. </P>

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        • #5
          Re: Hammond D152 percussion problem



          Thanks. I'll give that a try and let you know the results.</P>

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