I've given up trying to find a manual for my EPS 16+ rack module. Instead I ask if anybody can instruct me on how to input sounds thru the "Audio In" jack on the back of the module. I'm trying to input drum tracks I made on my PC and I can't figure it out. I got sound going in and I can even hear it coming out. I just can't seem to get it stored and/or recall it in the EPS. Any help would be appriceated. Thanx