On Fri, 26 Sep 1997 Tony Duell <ard(a)p850ug1.demon.co.uk> wrote:
Indeed. Sorting out things like that (and noting it in the service
manual) is a pleasant morning's work with a pile of data books. It helps
if you already know the TTL and standard EPROM pinouts. 
Working with electronics is a hobby, not my profession, so I don't mind
doing a fair amount of research.  For me it's the best way to learn, and
I enjoy the challenge.  [It helps repair the damage to my brain done during
the day by my regular job!]
Regards,
Jason Brady     jrbrady(a)delphi.com     Seattle, WA