Hi Bob and Jay,
Thanks for replying to my post. I now have a pile of schematics to try to
understand!
Bob: Thanks for the info on the -2 volt rail - I'm not going to be running
any 2116 hardware so I guess I should be OK.
I'm still intrigued as to why my rail should be out of spec (the service
manual is pretty precise about the rail limits). If any one has access to
the schematic for the standard power supply for the 2113B (i.e. without the
battery back up option) then I'd be very interested in getting hold of a
copy.
Cheers
Peter Brown