Would appreciate that thanks Geofrey, it is fitted with the ar400 motherboard so any info on that would be helpful. Spandex were about as useful as a chocolate fire guard which surprised me, thought they would have some old service documents knocking about as there are still quite a few of these machines in use. If I can get it going without the expense of converting it I would rather do that if I can, it has an electrical fault of some description but trying to fault find without a schematic is way over my head.
The control system & software is quite old but that doesn't really bother me as long as I can use it to do what I want. The software & dongle was supplied with it & I already have an old computer that I use for some other old software that still does everything I need it to so have never upgraded.