Rare case where more gear helps: CSQ hides SH-09 issue!

[contramark]

Its most likley built up dirt or residue in the switch assembly of the keyboard. I have this same problem on my SH-09 and going to try and clean it to see if it solves the issue.

Since you can trigger fine with an external trigger source this means the rest of the electronics work well.

[golden beers]

its the keyboard. CV and gate input will bypass it.

you can open it up and clean the contacts with meths or IPA or vodka

[ofajen]

Originally Posted by golden beers

its the keyboard. CV and gate input will bypass it.

you can open it up and clean the contacts with meths or IPA or vodka

You are probably right and I will try cleaning contacts on the keyboard mechanism. Not a big IPA fan and don't think a brown ale or porter will help the contacts so it will probably be some pure cleaning solvent.

What I find interesting is that I'm running the CV/ gate output from the SH-09 to the CSQ and then running the CSQ output back and it works great, even if the CSQ isn't playing a sequence and is just passing the same signal back and playing the same notes.

OTOH, if I unplug and play the same part without the CSQ in the path, there will be some double triggered notes. Need to look at the schematic again and see what's different in the path of internal keyboard only versus using the CV/ gate output and input.

Thanks!

Otto

[Rooftree]

IPA = India Pale Ale

IPA = isopropyl alcohol

[ofajen]

Originally Posted by Rooftree

IPA = India Pale Ale

IPA = isopropyl alcohol

LOL. Didn't recognize the second use for some reason. Should have known!

Thanks!

Otto