Hi all
A Tek 2465: in basically good condition, but there is a problem
with the OSD. The characters appear with 'digital noise' around them,
and the display brightness control has little effect. Any suggestions
if this likely to be a problem related to some of the hard-to-find Tek
custom parts?

Thanks a lot for your thoughts
Jon N

"jkn" wrote in
oups.com:

Hi all
A Tek 2465: in basically good condition, but there is a problem
with the OSD. The characters appear with 'digital noise' around them,
and the display brightness control has little effect. Any suggestions
if this likely to be a problem related to some of the hard-to-find Tek
custom parts?

Thanks a lot for your thoughts
Jon N



First,verify your power suplies meet voltage,noise and ripple specs.

IIRC,there was a pot somewhere to adjust RO wiggle.
the CAL procedure ought to mention it,or the circuit description.

--
Jim Yanik
jyanik
at
kua.net

Hi Jim

First,verify your power suplies meet voltage,noise and ripple specs.

IIRC,there was a pot somewhere to adjust RO wiggle.
the CAL procedure ought to mention it,or the circuit description.

Thanks for the suggestions; I'm flicking through the service manual at
the moment. It's a 'scope I won at auction and am hoping to sort out.
I'll let you know what I find!

Thanks
Jon N