Yamaha DTXpress/DTXplorer/DTXtreme

Thxs Keith... 
I'll get my manual out.!
WAS ABLE TO SWAP 1 FOR 9 --BUT I HAD TO CHANGE IT FOR each of THE KITS I USE MOST. Maybe I shoulod have done it differently -
also..something very weird, is still happeneing.I reversed cables....
so  9 (- extra cymbal)is wired to where 1 (kick) was~  I hit my kick-- cymabal sounds. Hit the cymbal-- kick sounds! so pads work. imputs work.
cables work--- then, I SIMPLY swap 1 and 9 imputs/cables..
and-  the 9 Cymbal crashes and the 1 kick ¨ does nothing....nothing. 
It just worked 5 secs a go with the cymbal....- but now rejects the kick ;sound'..?
weird huh Keith? 
again...back to the manual...