Rigol DS1302CA User Manual page 127

Triggering on the Video Lines
1. Press the MENU key in the Trigger control area to see the trigger menu.
2. Press Mode to select Video.
3. Press Source to select CH1 as trigger source.
4. Press Polarity to select .
5. Press Sync to select Line Num.
6. Turn ( ) knob to trigger on a specified line number.
7. Adjust the
trigger.
8. Turn the horizontal
screen.
User‟s Guide for DS1000CA Series
to set trigger level at the video sync pulse to get a stable
knob to observe a complete waveform on the
Figure 3-8 Waveform display
RIGOL
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