> Also, from the schematics I have, I cannot quite work out if the
> entire address range of the CPU has been used to address the RAM,ROM
> and hardware and that will likely be the limitation that makes or
> breaks any possibility of doing any sort of code upgrade. So that's
> why I'm looking for better schematics.
Oh boy, even having just the arpeggiator would be awesome.
I have the Vintage Synth Rescue cd for the poly800, I'll try to remember to look tonight if it
has high-quality schematic scans (probably doesn't, so don't get your hopes up)
cya,
Phoebe aka october71