RadioBanter - View Single Post - Tektronix 7603 scope behavior when readout board is missing

Dr. Anton T. Squeegee

In article , _
(known to some as msg) scribed...

Greetings:

I just acquired a Tek 7603 scope with 7A18 dual-trace vert. and 7B53A
timebase plugins but upon internal inspection and cleaning discovered
that the readout board (when facing the front of the instrument it is
found on the upper right side midway along the length) is missing, as
are all interconnecting cables it uses.

snippety

There is a Tektronix group on Yahoo groups that is loaded with very
experienced 'Tekkies.' You would do well to take your query there.

Off the top of my head, I would say two things.

(1) Get the service manuals for your 'scope frame, AND both plug-
ins. It will be nearly impossible to troubleshoot or service without
them.

(2) Check your power supply section for bad filter caps, correct
voltages, noise, etc. Ironically enough, you will likely need a known-
working 'scope to fix this one.

Happy tweaking.

--
Dr. Anton T. Squeegee, Director, Dutch Surrealist Plumbing Institute
(Known to some as Bruce Lane, KC7GR)
http://www.bluefeathertech.com -- kyrrin a/t bluefeathertech d-o=t calm
"Salvadore Dali's computer has surreal ports..."