Falk Willberg wrote in
:

My Tektronix 464 does not generate any sweep. X-Y is ok, voltages are ok.

Is it normal, that U980 (sweep control IC) is getting "hot"? I can
hardly touch it for more than a few seconds.

it should not be that hot.


I can see the trigger signal at pin1 of U980 but no other signal except
DC-levels on any other pin.

Thanks for any hint,
Falk




--
Jim Yanik
jyanik
at
kua.net