7000 series Plug-ins that lack readout capability have an N suffix.
You could check if the 7704A has option 1 which removes the readout,
look at the third of four potentiometers from the top which should be
the readout intensity control, or look to see if the readout PC board
is even inside.
On Sun, 01 Jul 2012 22:00:24 -0000, "dabyram" <tom.byram@...>
wrote:
I recently acquired a Tek 7704A with 7A26 and 7B53A plugins. The 'scope seems to operate fine except I have no readout functions on the CRT. I am not sure if these plugins have the capability or if there is a problem with the readout circuitry in the mainframe.
Any thoughts would be appreciated.
Tom
David Hess