21 Jul
2004
21 Jul
'04
10:38 a.m.
Tony Duell wrote:
HP actually made an instrument that worked like this.
It was called a
'Logic Comparator' IiRC.
I have one:
http://www.gifford.co.uk/~coredump/inst.htm
Scroll down to the section about the "HP 5011T Logic Troubleshooting
Kit", and the Logic Comparator is part of that. Mine also came with
a universal plug-in card with a ZIF socket for the "good" chip and
DIP-switches for setup. Oh, and there's a self-test card.
I've never used one, but it seems to br rather
lucky-dip servicing rather
than actually undertanding the problem.
I havn't used mine (yet), but I think you're right!
--
John Honniball
coredump(a)gifford.co.uk