[sdiy] Some OB-8 Questions....

[Gavin Muir]

Firstly, best of the holiday season to everybody as it quickly  
approaches!

Doing some more "cleaning up" on my Oberheim, and I have a couple  
questions....

I am having some problems with the auto-tune routine, which regularly  
is failing voice 8. The problem is, voice 8 (both oscillators)  
appears to be functioning just peachy. I was trying to trace back how  
the signal from voice 8 finds its way back to the processor for  
tuning, figuring maybe something is amiss there, but seem to be  
getting myself more confused (particularly as the "oscmux" circuitry  
from the output resides on the other voice board, and I am unclear as  
to where the top voice board feeds into that!).... Does anyone know  
anything about the auto-tune routine and what it is actually looking  
for (and where)???

Secondly, I have resurrected a nice 61-note Pratt-Reed keyboard from  
an old Xa (much prefer the feel, and my panasonic mechanism was STONE  
DEAD!), but I must admit to being a bit dim when it comes to cleaning  
and maintenance of a pratt-reed mechanism.... I am getting a lot of  
ultra-staccato multi-triggers on many notes.... Is there some  
additional debouncing that needs to be done, or is this (pure and  
simple) a maintenance and cleaning issue? If the latter, I guess I'll  
have to raid those old Arp manuals for some tips! ;-P

Thanks all!

Gavin Muir.