Block diagram of CS-80 VCO chip online

[WeAreAs1 at aol.com]

In a message dated 10/6/00 4:13:28 PM, jhaible at t-online.de writes:

<< Somebody (BJ ?) recently asked for this:
Block diagram and design equations for the Yamaha IG00153 chip:

http://home.debitel.net/user/jhaible/additional_schemos.html >>

Hello Juergen,

Thank you for posting this document.  What manual did it come from?  It's 
definitely not part of the original CS-80 service manual!

Michael Bacich