Saturn-09 is a basic divide down organ synth. ROS-09 is similar with added string section and organ and string can be layered. Haven't had one of these apart but will take a look at the diagram if anyone ever has need and update this. Expressive sounds of it's own kind. A friend has one.
Roland still stocks many parts for older instruments! You can always order them through your local Service Center and see what happens! Otherwise I have some parts also so don't hesitate to ask.
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