From the posted print set...
VCA and VCF are IC59 =IR3R05
make sure you look at the notes based on the Serial number because the schematics are slightly changed on newer models.
I'm sure your going to have a hard time finding these IC's:
VINTAGE PLANET - Parts Service for Vintage Synthesizer Repair - Transistors
more info:
SUPER JX-10 & MKS-70 SYNTHESIZER INFORMATION
Finally some really good sources of manuals/Service Manuals
Analog Hell : studio - analoghell.com