Vintage Paia Modular Synth with 20 Modules

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"This listing is for a Paia analog modular synthesizer set that is being sold as-is.
Here's the details: As far as testing the 8700 keyboard, I've hooked it up, and the 8780 module lights up and reacts to it, but I don't have any of the code to program the 8700 keyboard computer. All of the membrane switches on the 8700 work. All of the modules are working, except I couldn't get any signal from the 4710 modulator, although the LED was lighting up, so it's definitely not dead. Could be due to user error. The pitch pots on the oscillators are the multi-turn type, and seems finicky. Other pots, on the reverb and mixer modules, are scratchy. More than enough patch cables are included(audio and CV). Most of the original manuals are included for the modules and the keyboard. Being that the 8700 is only partially tested, and I have no idea what may need calibration or not, I'm selling it as-is.

Here is the module layout of the wings:
First Pic:
8781 Quad Addressable Sample Hold
4720 VCO
4730 VCF
4761 Wing Module/Patch Bay
8780 Equally Tempered Digital/Analog Converter
4720 VCO
4720 VCO
4730 VCF

Second Pic:
Home built variable voltage source and patch bay
4740 ADSR
2720-1 VCA
4710 Balanced Modulator
4761 Wing Module/Patch Bay
Home built regulated 18V, +/- 9V power supply
4740 ADSR
2700-1 VCA
2720-5 Control Oscillator/Noise Source

Third Pic:
4761 Wing Module/Patch Bay
2720-11 Envelope Follower/Trigger
4711 Mixer
Home built Frequency Counter – non completed
4712 Reverb
Home built Joystick port – non completed
2 x blank panels"