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

my problem is that when I turn the second knob (knob 2b) the volume 
of chanel 1 changes and not the volume of chanel/track 2. I can´t 
change the volume of all 16 tracks at the same time. first I have to 
choose the right chanel/track in pattern edit. 
thanks a lot
gerald