Emu XL-7 & MP-7 User's Group

hi, i'm having some trouble when sequencing.  I don't know if there's a 
way around this, sorry if there is and it's basic, but.. 

while I'm playing/sequencing the internal sounds on my xl-7, it still 
triggers the samples on my sampler.  Even though I have that channel 
set to INT it still sends the midi data out to my esi 32.  Just 
wondering if there's a way to fix that.
-Thanks