On Tue, Dec 24, 2019 at 12:16 AM Harvey White <madyn@...>
wrote:
The horizontal input has a calibrated deflection factor. Adjust the
vertical to the same factor, put a sinewave into both, and you should
get a 45 degree line.
If the amplifier is ok, and the problem is in the sweep, then you should
be able to center the horizontal dot (no sweep, x only). It should have
about the same travel (L and R) with the positioning control.
I like this method - put the scope in X/Y mode and input a sine or triangle
wave. Also, if you haven't seen this document before, give it a read:
.
Because oscilloscopes are a measurement instrument with calibrated sweeps
and triggers and stuff, they can often be coaxed to diagnose their own
faults by milking the front panel.
