Teledyne LeCroy WaveAce - Manual (Page 48)

Getting Started Manual
WA-GSM-E RevB 48
Video Triggering
Use Video Triggering to trigger on fields or lines of standard video signals.
1. Press the Type option button and select Video.
2. Press the Source option button to choose a channel input (CHS 1 - 2;
or CHS 1 - 4 on 4 channel models) or external input.
3. Press the Polarity option button and select (Normal) or (
Inverted). Normal triggers on the negative edge of the sync pulse.
Inverted triggers on the positive edge of the sync pulse.
4. Press the Sync option button and select a video sync (Line Num, All
Lines, Odd Field, Even Field). If you select Line Num, you can turn
the Adjust front panel knob to set the appointed line number.
5. Press the Next Page option button.
6. Press the Standard option button and select the video standard for
sync and line number count (NTSC or Pal/Secam).
7. Press the Mode option button to select Auto, Normal, or Single
mode. Use Auto mode to let the acquisition automatically run in the
absence of a trigger. Use Normal mode when you want to see only
valid triggered waveforms (when you use this mode the oscilloscope
does not display a waveform until after the first trigger). Use Single
mode when you want the oscilloscope to acquire a single waveform.