Now we see an erroneous runt in the signal.
To capture it, follow the steps below.
10. Press the side-bezel Set to Auto button
to turn off infinite persistence.
11. Press FastAcq lower-bezel button and
then press FastAcq side-bezel button to
turn off FastAcq.
12. Press trigger Menu, select Type Edge
bottom bezel button, use Multipurpose
a to scroll down to Runt.
13. Press Thresholds lower-bezel button and
adjust High to approximately 2.00 V
using Multipurpose a, adjust Low to
about 1.00 V using Multipurpose b.
14. Press Mode lower-bezel button. Press
Normal side-bezel button.
15 Press the Menu Off button twice to
remove the menus. You should be
triggering on the runt signal.
Figure 6.
www.tektronix.com/mdo300014
MDO3000 Series Oscilloscope
Demonstration Guide