Hello -- I recently acquired a K3 in really good mechanical condition but one small electronic flaw: OSC2 will only produce a sine wave. I'm not sure what the cause might be offhand, but I'm skilled at electronics and hope to diagnose and repair the problem.

I love how the K3 sounds, but am having difficulty locating documentation for it online. Does anyone have links to the User Manual or Service Manual, or will I have to fork out the $$$ to purchase a printed manual?