Small bugs on 2x JP4's

The Roland Jupiter-4 and ProMars Compuphonic Analogue Synthesizer
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Joined: Wed Dec 14, 2011 6:15 pm

Small bugs on 2x JP4's

Postby spawn » Wed Dec 14, 2011 7:01 pm

Hi everyone,

I'm the owner of 2 JP4's. One that I've upgraded with the Io and one "normal" that I just received today.

I'm having some problems that I hope someone can help with.

Since the installation of the Io upgrade on my JP4(1) I've encountered a problem with one of the Osc boards. When activated it releases a loud snap/click. The Io upgrade is working perfectly and the error has nothing to do with upgrade. I've tested the Osc board in another JP4 and the same problem exists.

Any good ideas to resolve this problem?

Now to the JP4(2)
When playing different notes (lets say C1 and then C3) no problems at all. But when playing the notes close the each other like C1 and then D1, its C1 being triggered again? All the Osc boards are fine and tuned correctly, and I'm thinking the Key Assigner Board has a bug.

Have anyone else here experienced this error before? Any hints on what could be wrong with the KAB board?

Any help would be appreciated


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