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Triggering on Video Lines
To trigger on the video lines, follow the steps below.
1.
Push the TRIG MENU button to see the Trigger menu.
2.
Push F1 to select Video for the Type option.
3.
Push the Source option button to select CH1; push the Polarity option button to select Normal; push the
Standard option button to select NTSC; push the Sync option button to select Line Number.
4.
Turn the Trigger Level knob to adjust the trigger level and stabilize video signals.
5.
Turn V0 to adjust the line number (NTSC: 0-525 lines).
6.
Turn the horizontal SEC/DIV and the vertical VOLTS/DIV knobs to display on the screen a complete video signal
triggering on a video line. See the figure below.
6.8
Example 8:
Using Slope Trigger to Capture Particular Slope Signal
In many occasions, we are not only concerned about the edge of the signal, but also want to know the rise and fall
times of the signal. To better observe this kind of signals, we bring in the slope trigger. Follow the steps below.
