Durst Multigraph Problem!

My Multigraph keyboard is totally lit up (all the LEDs are on) as is the enlarger (L 1200) and will not go off unless I flip the power supply switch. Nothing in the owner's manual is of any help on how to reset it. Any ideas? This one has me flummoxed....
Steve
PS: I have an email in to Durst.it:confused:

Hi! It might be that You will recieve no mail from Durst. The best way is to search for Durst Multigraph service manual and search for this trouble. I might have a copy at home, but I am not sure.