"ktl" wrote in
oups.com:

Just aquired an 465B Scope.

I have no sweep, just a wide dot when I press the beamfinder.

When I lower the timesetting I can see one single square wave, same on
both channels, It seems not to be affected by the settings on the Hor-
sensivity and the input selector is set to gnd.

Anyone that knows where to start.


I suggest you buy a service manual,and read the circuit description,it is
very detailed and VERY helpful.

another scope will be very useful in troubleshooting the sweep generators
and unblanking circuits where your problem could lie.
It may only be a CRT bias adjustment.

--
Jim Yanik
jyanik
at
kua.net