On 1 Apr 2009 at 18:44, Dan Roganti wrote:
  Anyone have a manual/schematics for Microangelo MA520
S-100 card ? All
 the sites that I bookmarked come up empty. I'm trying to fix the one I
 have here. It's also missing a chip at U5 I don't have a photo of the
 card either to determine the part#, just the early revision model. 
A google search turns up this guy who seems to be a MicroAngelo
expert:
http://www.citilink.com/~delscott/
Also, there's a high-resolution image here:
http://gallery.brouhaha.com/d/8618-1/img_0266.jpg
That makes U5 look like a 7490.
Cheers,
Chuck