Vintage Synth Repair

Is VCO-2 tracking properly? If so you can compare the two and look for where the voltages do not match.

-Alex

--- In vintagesynthrepair@yahoogroups.com, "Nicolas" <nico678@...> wrote:
>
> Hi everybody,
> 
> I'm trying to fix an white ARP Odyssey 2800 but I'm having a hard time.
> The problem is that the octaves on VCO-1  are not linear. For example, if I play a low C on the keyboard the next C  will be an A. 
> I made the adjustments like described in the service manual but I not able to get the octaves in tune.
> I replaced the capacitors in the VCO-1 circuit. It improved a little bit the linearity of the octaves but I'm still not able to tune it properly.
> Does anybody have some suggestions to fix this problem? 
> Thank you!
> 
> Nicolas
>