osiweb.org

Posted: **Sun Dec 25, 2011 11:53 am**

Just wondering if anyone here has the schematic for the 542C Keyboard?

Thanks

Posted: **Tue Jan 03, 2012 5:49 am**

Keyboard fixed...The problem was a dead pull up resistor on the C0 line.

Phil

Looking for OSI 542C Keyboard Schematic