EDP controllers?

[DialaThos@aol.com]

Hi all,

I've recently brought my EDP (loop IV) out of the "closet" and am trying 
to 
use it alongside a Repeater, a bunch of Fxs, and with a Roland FC-200 as 
the 
foot controller.  I've hit a weird issue though...  

I'm using continuous controllers to control both the echoplex and the 
Repeater.  I've got source # at 31 on the echoplex.. which should mean the 
"buttons" 
are replaced by controllers 33, 34, 35, 36, 37, etc.. 

Meanwhile I have controllers 75 and 76 set to control the live instrument 
volumes (on fxs).  For some reason though when I touch 75 (a roland ev-5), 
the 
echoplex stops playing.  The mute light and multiply lights turn red, 
while 
record and overdub are green, and insert and undo are yellow (next loop is 
dark).  

Pressing the mute button on the front panel starts playback again, but 
those 
lights are not the configuration I get when I simply press the button to 
begin 
with, and based on the controller numbers, the mute button should be 
responding to 37 I think (not 75).  Any thoughts?

Thanks!
Tom Griesgraber