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Ground noise on a single channel of a multi channel converter
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Old 28th October 2012   #1
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Ground noise on a single channel of a multi channel converter
I have a euphonix multi channel D/A converter that I discovered ground noise on one of the channels. The noise is isolated to that channel only and is very very low in level, but definitely there. Easier to hear when compared to another channel. What could be the cause, and why would it only be in that channel?
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Old 29th October 2012   #2
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Bad solder joints, damaged internal components...

Why do you think it's ground noise?




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Old 29th October 2012   #3
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Hmmm. I guess I just assumed it was since it sounds just like ground noise to me. I made a ground loop and the noise was boosted greatly in that channel.

Maybe it's not I guess.
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Old 29th October 2012   #4
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Do you mean power noise (buzz at multiples of 50/60Hz)?

What happens when you short that input?



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Old 30th October 2012   #5
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i agree with Tiny, sounds like a faulty component, maybe an opamp.
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Old 30th October 2012   #6
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I'll check it out and let you know
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