Do you have a specification of the hard copy unit
connector that we
are discussing?
Between page 5-30 of the 4014 Service manual, 070-2303-00, and
The description of the signals related, I bet we could figure
It out.
http://bitsavers.trailing-edge.com/pdf/tektronix/401x/070-2303-00_4014_4015…
Tim.