my jamman is acting broken

[DainL@AustinTX.net (Dain R. Luscombe)]

Me and my roommate were trying to reset the midi channel on one of the
jammen without the aid of the manual (aka pushing random buttons and
powering up) and now when syncing it to midi the loops shut off after a
while and the delay mode just flicks between 0 for loop and 1 for delay. 
Could a midi problem have this drastic an effect on it (ODing on note
info?) or did we fry something?

thanks
in advance
Dain

PS I just got on this list yesterday so I'm a newbi