NewYorkDave
Well-known member
I just stumbled across this Japanese page. It appears that many of the schematics were harvested from elsewhere on the web, but it's a nice collection.
http://www.miduho.com/jp/st/amp-kairo/amp-kairo-date.html
http://www.miduho.com/jp/st/amp-kairo/amp-kairo-date.html