The screen displays a square wave.
If the displayed square wave tops are not flat, perform the
procedures to compensate the probe high frequency
response. You can compensate the probe after completing
this functional check. See Compensating a passive voltage
probe on page 28.
Push Measure to open the Measurement Selection
menu.
Turn the Multipurpose knob to select Snapshot.
Getting acquainted with the oscilloscope
26 TBS2000B Series Oscilloscopes User Manual