RIGOL
3-10 Copyright ©1998-2008 RIGOL Technologies, Inc.
User’s Guide for DS1000CA Series
Example 7: Triggering on a Video Signal
Test a video circuit in the DVD set. Use video trigger to obtain a stable display.
Triggering on Video Fields
To trigger on the video fields, please do as the following steps:
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 as Odd Field or Even Field.
6 Adjust the
to set trigger level at the video sync pulse to get stable
trigger.
7 Turn the horizontal
knob to see a complete waveform on the screen.
Figure 3-7
Waveform display
DS1000CA series triggers on the Odd field or Even field. To avoid confusion when
Odd field and Even field trigger simultaneously, choose Odd field or Even field as in
step 5 above.
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