To Trigger On A Specific Field Of The Video Signal - HP 54645A User's And Service Manual

Using Option 005 Enhanced TV/Video Trigger (HP 54645A)

To trigger on a specific field of the video signal

To trigger on a specific field of the video signal
To examine the components of a video signal, trigger on either Field 1 or
Field 2. When a specific field is selected, the oscilloscope triggers on the
rising edge of the first serration pulse in the vertical sync interval in the
specified field (1 or 2).
Select the TV display, TV as the trigger mode, and the appropriate
1
TV standard as described in the section, "To autoscale on a video
signal."
Press
2
then press the
Figure 6-3
Triggering on Field 1
6-8
in the
Slope/Glitch
and
TV TV Menu
Equalizing pulses
section of the front panel,
TRIGGER
softkeys. Press
Field 1
Serration pulses
or .
Field 2