This is a unique synth that reminisces through a time of particular circuitry. The unit itself looks the part, but it’s true glory in design relies on how you interpret the controls to master it’s depth. This was the video I watched before I saw it’s potential for what I sought.
It is my main controller via MIDI. Note: Reflow the solder of joining connections to membrane button boards. Inspect with a loop. Never should you have to press hard on the buttons unless the tact switch is bad, I did this fix and the my problem of intermittent control went away permanently.
In edit mode you select a number which corresponds to the illuminated bars above, adjusting the level of the parameter. This feature can be simplified (finding your tone/characteristics) by running a midi-in arpeggiator sequence while adjusting your parameter/s. After you like your sound, save it and try playing without the midi.
I route my tape-out midi dump straight into a DAW for archiving. Attached you will find patches 1A, 1B, &1P.
This is the eprom replacement info:
EpromAX80-L NEC Japan D2764D 8S23XXD42
Now you can get this awesome synth as a vst plugin. Here is a link to the site where you can buy.