My Mother 32 stopped functioning after I plugged my Kurzweil 2600xs into the midi in. Then truly weird things started happening, i.e. the Mother 32 started to change Midi Parameters on the K2600 with I changed the PWM knob. What gives? Ideas? I’ve already asked for an RMA, but I hope that I can get the thing working myself.
Hah! Found I plugged the wrong power from the wrong wall-wart. I made the change, and all I can say is that baby’s back in town! Yes! Yes! Yes! 
Top tip — label your power connectors with coloured tape. Saves on blowing things up. 