Technical data

Troubleshooting 4
4000 X-Series Oscilloscopes Service Guide 79
4 Press [AutoScale].
5 You should see a waveform on the oscilloscope’s display
similar to this:
If you see the waveform, but the square wave is not
shaped correctly as shown above, perform the procedure
“To compensate passive probes” on page 80.
If you do not see the waveform, ensure your power source
is adequate, the oscilloscope is properly powered-on, and
the probe is connected securely to the front- panel analog
channel input BNC and to the Demo 2 (Probe Comp)
terminal.
6 If you still do not see the waveform, use the
troubleshooting flowchart in this chapter to isolate the
problem.