Just got my hands on my second mp 201, this one i think had e few kicks to many up his value dail.
Works fine turning it around but for pressing enter i need to push a bit harder or hold it in for a second and then let go.
Is there a way to clean the contact. Is the knob glue’d on the pot theres no screw to unmount?
Thanx guy’s any help is appriciated.
Moog on…
The button just pulled out, opend the unit and blew dry air true the pot’s open spaces. Works perfect again 
Moog on…
I had a similar experience with mine. I was going nuts with the value knob and the menu buttons.
I took it apart to see if I could replace the buttons, blew the dust out and reassembled it. Works fine now.