[sdiy] Arp ProSoloist schematic?

[Daniel Araya]

Hi,

I have a ProSoloist on my workbench and it has a very strange problem, the different octaves work but the pitch is "backwards", i.e the lowest key gives the highest note in every octave and it's consistent over the whole keyboard!
The cause is propably that the owner had some intermittent key contacts and decided to spray the whole synth (including PCB's) with some kind of contact spray! *sigh*

Anyway, I found the service manual but the page (52) with the schematic for the key scanner (board E) is missing in the pdf!
I did find a patent with the circuit but a schematic with IC numbers would be helpful!

Regards

/Daniel