Hello,
At my web site, tauntek.com there is a Matrix 1K new firmware page.
This page has a link to a .zip archive which contains the schematics that
I captured, plus I have added the new scan provided by John Leimseider.
Please grab the schematics if you need them. I left mine in there, as
they are drawn a little differently in some places, so now you have a choice.
Bob Grieb