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My IVY is having an issue where it is only attenuating at the moment (IE. not working), right now I have to turn my amplifier all the way up so that I hear the distorted music. I did make some modifications and made R1-4 390R, omitted C1-4, jumpered R5-8, and put 1nf multicap film caps at each input to ground. I'm hoping its an obvious mistake I just have not been able to find yet. Sorry to be a bother, hopefully I learn how to troubleshoot better from this. Here are a few pictures:    Edited by user Monday, June 8, 2009 7:39:30 PM(UTC)
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Was it working then stopped, or just never worked? What voltage are you running it at?
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It never worked, I'm running it at 15V. Edited by user Monday, June 8, 2009 8:27:36 PM(UTC)
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Okay. Have you verified your power input is not reversed (+15V -0 -15V)? I cannot see this from the pictures. I picture of the bottom of your IVY board would be helpful as well. Edited by user Tuesday, June 9, 2009 3:08:50 AM(UTC)
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I have it wired correctly, but set at +7.5V,0,-7.5V. That may be the problem. Here is the bottom anyway: 
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That is the problem. 12V rails are the minimum. Anything less and the relay will not operate correctly.
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Great!  I'll try it after work. EDIT: Its working perfectly. :) Thank you! Edited by user Tuesday, June 9, 2009 12:17:58 PM(UTC)
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