Sorry to hijack somewhat but I'm working on Sonzera 50 with what appears to be a blown power transformer (possibly more) and was wondering if anyone had a schematic available for the 50, or even the 20 as I assume they are very similar except the output stage.
It looks like CapnDenny1 was creating schematic. Any chance you would be willing to share your hard work?
It looks like CapnDenny1 was creating schematic. Any chance you would be willing to share your hard work?