I read that page in the 147 page manual I had printed and bound and it doesn't do what I want. This board has a daughterboard in it. To that daughterboard ROMS get plugged in. Those ROMs are then loaded with software on the 1.4 disks I need to find. There is no way I have found yet short of taking the thing apart to see if that daughterboard is installed and if so, how many ROM boards are installed on it. I can see that I have no sounds between 199 and 770, then no 800s. The 900s are populated. That is the "orchestral" set. There are 3. Piano, contemporary and orchestral. From what I can surmise I have base, piano and orchestral installed.
This is a huge problem with used gear that requires deep knowledge. My friend is supposed to call me tonight and we will compare the contents of mine with the contents of his. He has everything available. And here's where the ugly starts is that even if he dumps everything he has and tries to install it here, without knowing if I have 3 ROM blocks or not would make that a really tenuous path. I KNOW that I have 1 ROM block to be able to have the orchestral block installed. This is worse than long division!!