Hi James
Did you get any support on this?
I'm the proud owner of a second hand A15MK2 that I bought on Ebay. But can't get a copy of the schematic. Seems to be top secret! Any chance you could email any docs you have,,but especially the schematic? My email is cliffwhite@hotmail.co.uk. Happily pay you a fiver through ebay for your trouble, so let me know. Cheers!
Cliff.