Looking for manual/schematics for Microangelo MA520 S-100 card

[Chuck Guzis]

On 1 Apr 2009 at 19:43, Dan Roganti wrote:

> That photo really helps - I somehow overlooked that link - thanks ! I
> contacted the web owner there too in case he might have one. So I'm
> still on the lookout. 

What struck me about the chip at U5 is that it's a DM7490AN, not an 
LS90.  (or even an S90 or F90).  I wonder if this was intentional or 
what was simply on hand.

--Chuck