15 Dec
2009
15 Dec
'09
6:48 a.m.
On Tue, 15 Dec 2009, Mr Ian Primus wrote:
... and when you get that fixed, there's an excellent chance that the
foam pads in the keyboard have disintegrated. My Model II had only 5
working keys when I got it, but I was able to rebuild the keyboard with
the help of this article:
http://www.solivant.com/sol20kbd/
Mike Loewen mloewen at cpumagic.scol.pa.us
Old Technology http://sturgeon.css.psu.edu/~mloewen/Oldtech/
Any ideas?
Does this sound like some bad
memory? How can I diagnose
this?
It's a bad 2114 RAM chip on the video/keyboard interface board. There
are four 2114's on that board, used for video RAM, and one of them has
failed. I forget if they're in sockets or not...