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Powerbook/digi002r power supply noise!

Discussion in 'Recording' started by aarongammon, Feb 2, 2004.

  1. aarongammon

    aarongammon Guest

    Hi all
    I am aware of some of the discussion regarding power supply noise from the G5's (with digi 002R's, I think). I just bought a digi 002 R (today..!) (after using logic for a long time), and have encountered a similar problem with my 12' powerbook (40gig/640mb OSX 10.2.8). When I plug the power supply in - horrible noise..! I downloaded CHUD tools, and turned off Nap - which has helped - but its only bearable now... The digi 002r is going directly into my mackie HR824's. Any suggestions anyone?
    (I know the 12" powerbook is 'untested' according to digidesign - the few shops I spoke to assured me the 002r will work fine with it).
    Any help would be greatly appreciated! Many thanks. Aaron
     
  2. aarongammon

    aarongammon Guest

    (Put this somewhere else, but its been moved here - apologies! (newbie error!!))
    Still though, if anyone has experienced this I would greatly appreciate some advice...
    Thanks
    Aaron
     
  3. I use my laptop with sonar to assist in mixdown. So I can take my tracks wherever and work on them. I find a problem when I have my computer plugged in to a wall outlet that I get a very annoying hum in my speaker system. To correct the problem I bought a ground lift adapter from the hardware store. Put that in between my powercord and the outlet and the hum was gone. I'm guessing that this is probably the problem with your system as well.
     
  4. David French

    David French Well-Known Member

    I have a friend who has this problem with his laptop. Can you tell me about this ground lift device and where to get them?
     
  5. The device is basically a thing about an inch or so long. On one side is accepts a standard US three prong plug, however, instead of having three plugs on the other side it only has two. It bypasses the US standard ground circut on US power plugs. It's really a simple device. You can pick it up just about anywhere in the hardware department by the electrical cords generally.
     
  6. David French

    David French Well-Known Member

  7. aarongammon

    aarongammon Guest

    Hi,
    After trying anything else I could think of I put the laptop in to get it serviced - apparently there is no grounding fault on the machine, so I assume its some sort of ground loop fault... Just wanted to ask/say, arent ground lift devices potentially dangerous?
    Aaron
     

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