Fairlight-CMI

Hi Tim.

The series I and II used 6800 processors, whereas the IIX shifted to 
6809 (that's the "x" in IIX). Correspondingly there are two versions 
of QDOS operating system, which are incompatible. 

Incidentally, the series IIX uses the same computer section as the 
III, which is why you can run OS9 on the IIX.

I have 6800 software here if you're stuck, but hopefully you can 
find someone in the US with a working system to copy a number of 
system discs. Early machines with disc problems have an annoying 
tendency to corrupt system discs, and if you're troubleshooting 
you'll need to have some known good ones.   

Hope this is helpful,

regards,

Peter Wielk in sunny Sydney.

PS. I do have a "mint" non-MFX series III in the UK, but it'll be a 
few months before I transport it here, with my beloved old car. If 
you don't find one first, keep it in mind!