This is an article by Sweetwater explaining about the D-Beam's infrared operation. I don't know if any calibration routines are hidden in the VA76 or other Roland arrangers, but you might contact Roland and ask them.
http://www.sweetwater.com/expert-center/techtips/d--06/02/2003 Sorry, Mo, but you are completely off-base here...
[This message has been edited by Diki (edited 02-18-2007).]