First of all, thank you for your guidance. I own a KN7000 and to reset all its setting is a simple matter of re-initializing it with a push of a button. I guess I am spoiled.
On the PA800, I have tried to locate a "re-dump" of the factory setting from its internal ROM and could not find a way to do this. Unfortunate for me right now, I can't seem to have my computer recognize the PA800 via the USB port. Therefore, I am unable to download any programs from KorgPA. Or at least I don't know how.