Rhodes 660 joy AND despair!!!

[slowdownyourday]

Hey all, here's the skinny! I was at an estate sale this morning, and as I was getting ready to leave I saw a plastic cover that looked "instrument-like". I pulled the cover off and there before my eyes was a Rhodes 660 with the original power supply AND the foot pedal, and let me tell you that this is in MINT condition! I asked what they wanted and was told $25.00, so I shut my mouth, paid and left!!! I got this beauty home and turned it on and found that it only plays one note and I believe it's at the "split" point of the keyboard. Should I just do a factory reset, or what button do I need to press to get this rolling full steam? Please note: ALL the presets work, but just played on that one note!