Started happening sporadically this fall. Maybe once or twice a gig. Playing along and all of a sudden it sounds like a chorus effect has been engaged. Reselecting the sound clears it. Anyone else have this happen? Any ideas where to start tracking this down? This is the kind of issue I hate to send the keyboard out for repair because it is so hard to reproduce.

You can start troubleshooting the problem by making note of on which Program it occurs.
Then look at the effect assignment and the Control Set, to find out on which physical controller the Chorus Send is assigned to - then determine if you some how sent that control number.

I’LL BET YOU ARE BUMPING YOUR MOD WHEEL

By George - I think you’re on to something!

That would have been the last thing I suspected even though I knew it was a possibility I was bumping a button (I hit the transpose button about every other gig!). But, thats exactly the sound i’m getting! Because this is a S70, i’m sure my pinky is dangling off the end at times.

THANK YOU!!!!!!!!!!!!!!!!!!!!!!!