Rhodes Chroma Polaris

Hello

I believe that my Chroma Polaris needs to be run through a calibration again as notes seem to cut off abruptly, and also the pitch bender seems to be working backwards of what I'd expect. Can anyone point me in the direction of what I might do to get it behaving as expected. Hoping this is something I can do without screwing anything up in a favorite synth of mine. 

cheers,

Paul Kavicky
Paper Street Audio Company 
www.paperstreetaudio.com