MATRIXSYNTH: Sequential Circuits Pro One SN 0728

Monday, September 30, 2019

Sequential Circuits Pro One SN 0728

via this auction

"Keyboard function is not working properly, light stays on and machine thinks a key is constantly being pressed, gate stays open."

Hmm... If this is a j-wire version it could be one of the wires is simply bent up and making constant contact. I once picked up a Pro One from Guitar Center for $125 as faulty for this reason. I opened it up, bent the j-wire back and it all was good. No idea if that is the problem with this one. The same SN was listed back in 2016 as a j-wire model.

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