Korg SP-250 spazzing out

Keyboard action still beautiful, which is why I keep it, and is my second I have owned. Metronome goes on while I step out, Instrument choices constantly change. Any ideas what electronics, mother boards, etc, I need to look for?

Most likely the main board is got issues. The other possibity is the panel circuit board has a crack or corrosion from something spilled on it