Chapter 5 To Trigger the Oscilloscope RIGOL
MSO7000/DS7000 User Guide 5-15
Video Trigger
The video signal can include image information and timing information, which adopts
different standards and formats. MSO7000/DS7000 series can trigger on the
standard video signal field or line of NTSC (National Television Standards Committee),
PAL (Phase Alternating Line), or SECAM (Sequential Couleur A Memoire).
Trigger Type:
Press Type, and then rotate the multifunction knob to select "Video". Press
down the knob to select the trigger type. Then, the current trigger setting
information is displayed at the upper-right corner of the screen, as shown in the
figure below. You can also press Type continuously or enable the touch screen to tap
the desired trigger type and select it.
Source Selection:
Press Source to switch the trigger source and select CH1-CH4. For details, refer to
descriptions in "Trigger Source". The current trigger source is displayed at the
upper-right corner of the screen.
Note: Only when we select the channel (that has been input with signals) as the
trigger source, can we obtain a stable trigger.
Video Polarity:
Press Polarity continuously to select the desired video polarity. The polarities
available are positive polarity ( ) and negative polarity ( ).
Video Standard:
Press Standard and rotate the multifunction knob to select the desired video
standard. You can also press Standard continuously to select the video standard or
enable the touch screen to tap the desired video standard and select it.
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