From Chase Smith Sent Thu, Jan 18th 2018, 03:10
Hi, I'm working on a minimoog now and I'm having an issue where when I hold a key down and press another higher key, I get a couple mv increase on the keyboard cv and the tuning goes a little higher. I was trying to figure out if this is some weird characteristic of some certain revision minimoog or if there is some deeper issue in the keyboard circuit. It originally had some connector issues that I fixed, and I've gone over the connectors alot, cleaned the bus bar and tried to gently clean the key springs. I checked the keyboard pitch path from the bus bar to the oscillator board and all connections have around 0.1-0.2 ohm resistance so I'm wondering if this is some thing with the design of the circuit before I get into it anymore. Serial number is around 5700. Thanks, Chase