My Liberation is back after 20 years!

What a friend! Over 20 years ago I asked a great friend to store my Moog Liberation. 20 years later he pulls it out of his closet and said “Here you go!” Can’t thank him enough! Here’s my problem. It will not tune. When I try to tune the high E according to the manual, the “E” is actually playing a “Bb” I can not get it to tune up to the “E”. Is there a VCO I can tune or could this just simply be the “Synth” knob potentiometer? How hard is this going to be to open up and get it tuned back up? also, I need to clean the sliders, pots, and switches. any recommendations? Thanks All! RadMan2112! OUT!
:smiley: