Modifying ARP's CV/Gate inputs - Odyssey Mk2

[Andy (Mattachine)]

Hi all, it's me again...
Many thanks for helping to fix the VCO on my Oddy.

Now I need to modify the CV/Gate inputs to enable me to use an external
CV (Kenton Pro Solo), but routed thru the CV Memory circuits so I can
use the portamento and PPC's.

Problem 1. The only place I can see to insert the Ext. CV is at the Kbd
input around R18/C7 but, the Kbd CV at this point is inverted (High
C=0v, Low C=3v). So I guess I'll have to invert the external CV before
applying it at this point...is this right?

Problem 2. Obviously to use the above arrangement, Q3 (S&H CV memory)
will have to be gated from the extenal source too. The ARP's gate
voltage around CR6/R38 is -13v off and +10v on, do you think it would
work from Kentons 0-10v gate signal, or will I have to modify something?

If anybody has actually modified an Odyssey Mk2 in this way, could you
contact me...it would save a lot of time.
-- 
Andy (Mattachine)