Hi everyone! I have the opportunity to purchase an Ensoniq SQ80 locally for $250 but it has a strange issue…
Specific notes do not work across the entirety of the keyboard
Example, all C notes are out, all Eb notes are out, etc… a total of 6 notes all out consistently across the keyboard.
What is this issue and can it be fixed?
Is this keyboard worth buying or will it require a lot of tlc and repair?
NOTE: I have already advised that the current owner do a factory reset, retune the filter chips, and recalibrate. No change.
Edit I checked and the current OS version
Edit 2 I am meeting the owner with one of my own keyboards and a midi cable to see if the problem still exists when using another keyboard to control the SQ80.