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Not sure I did this correctly as I swept one knob from Min to Max, then put it back to Min, then swept the other knobs similarly for each pin, because then I do not get cumulative voltages for controls working together, but for preliminary diagnosis, it's ok. I feel like a Korg Factory QA employee.
Here are the results (I also have it as a large PDF if needed. the blank squares indicate no change from initial first read of first row when probing):
https://drive.google.com/file/d/0B9VKnWFwKzxKVHJkd1I1M1hMRGc/edit?usp=sharing
IC18-2 (Res CV) picks up all of the signals apparently, so I guess a track checking around this is in order.
Also, when monitoring and changing EG Sustain, it will rise fast initially, but settle on the Min voltage quite rapidly. Same thing for EG Attack and EG Decay. MG Delay does this too.
As I probe the Cutoff pin, the filter opens.
Yash