Rigol DS1104B Guia do Utilizador descarregar pdf (Página 146)

RIGOL

User’s Guide for DS1000B 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.

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 knob 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 Triggering on Video Fields

DS1000B 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 step 5

above.

1 2 ... 141 142 143 144 145 146 147 148 149 150 151 ... 165 166

Sem comentários

Rigol DS1104B Guia do Utilizador Página 146