Circuit Overview:
A simple 1 vco monophonic synth with ring mods.
Service Tips:
Typical cleaning issues. Haven't heard of any specific typical failure otherwise. Switches and pots.
Parts:
I believe you'll draw mostly blank looks from Korg on these units. I have some parts that are the same so feel free to ask what the current stock is on a given thing. Some of the less common parts are getting quite hard to find though. THings pop up on ebay now and then..