Rigol DS1074B Betriebsanweisung PDF herunterladen (Seite 146)

RIGOL

User’s Guide for DS1000E, DS1000D Series

3-10

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 mode.

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

The oscilloscope 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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Rigol DS1074B Betriebsanweisung Seite 146