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EXS 24 Logic Sampler Users Group

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Re: [exs] SOT: LAWP/Audiowerk 8/2 hum problem

2002-03-22 by Brian Gascoigne

>Hello,
>
>I am having a ground hum problem with my Audiowerk 8 and Audiowerk
>cards.

I seem to remember a thread on this on the main LUG when the cards 
first came out, and the solution had something to do with internal 
grounding in the Mac.  You are using the screws to connect it to the 
chassis, are you?  I dredged this up from years ago.  Regards Brian

  At the bottom of the card is a point at which the shielding meets 
the metal frame which is attached to the front of the card. Now the 
bottom of this metal frame was slightly bent away from the card and 
was not making contact with the shielding. I bent the frame back so 
it was making contact and put the card back in the Mac......No Noise! 
Once again if I turn my gains to max then I can hear a little 
rubbish, but if there was actual signal present at this level my 
speaker cones would travel across the room. At normal levels it's 
totally quiet.


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