Good morning Group,
I recently purchased a 8557A that looks to be in good condition but
I don't have a display so I haven't been able to check it out.
Neither have I been able to find a service manual but I do have a
manual for the 8558A which at least is similar.
My Question is, there seems to be a missing lead from the
compression fitting labled LO OUT located on the top surface about
in the center of the unit. Can someone help me to determine where
this lead terminates. A photo of the top view of the unit would be
great if you could e-mail a copy to me. Also what is the connector
at the top left rear from the front view. It looks like some sort of
interlock or a contact point from within the cabinet.
I have a HP 180d scope frame on the way. Will the 180d have the
necessary options required for the basic operation of this unit?
Anyone with experience with this unit could be a very big help to me
and I would appreciate it very much
George Headley
Atlanta
