20 Jul
2005
20 Jul
'05
7:40 p.m.
To help better understand Tony's (Duell) discussion of the 9810
repair, have a look at
http://www.rheinfeld.de/andreas/9810.htm
where Andreas also describes his repair of an 9810 using Tony's
schmatics (available on the HPCC cdrom).
Not just my schematics. As he says on that site, we exchanged quite a few
e-mail messages about this. Essentially I talked him through the
procedures, but I wanted him to understand what he was doing, so I
explained what all the signals meant, what the various microcode
addresses were, and so on. I hope he picked up a little bit about the
workings of these fine machines.
While it's good to help get another classic working again, it's even
better IMHO to pass on the techniques as well.
-tony