6. Janary 2013:
Here are some PDF files containing some manuals for the organ and the USB drive.
Some manuals and brochures.
Roland AT SL Series Brochure
Roland AT 60/80 SL Owners Manual
A Beginner's Guide to Roland's Atelier-Series Organs
Roland AT80SL Service Manual
I have others as well.
AT80SL update 2.10
Get the update
Let's get into business, here are manauls for the USB drive.
Manual
Data Sheet
Format Utility Manual
USB Floppy Emulator