Reply To: Juno-66 No Waveforms

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I know this was already solved, but just in case it helps someone else I had similar symptoms when I first installed mine – no one wave was completely gone, the other was still there but almost inaudible and very distorted (It was a couple months ago so I don’t remember which was which and I don’t remember if the sub oscillator had any problems), high noise floor and the filter sounded distorted when I brought up the resonance. In my case what had happened was that a stray bit of solder had made a tiny bridge between the point where the 180k resistor is soldered to the bender board and the pad directly below that point in the photo on the manual. It was easy to clean up and no harm was done to anything.

The production flaw in the OP’s JU66 is probably very unlikely to happen again so I’d suggest checking the bender board for shorts first for anyone having similar issues.