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Example 6: Video Signal Trigger
Observe the video circuit of a television, apply the video trigger and obtain the stable
video output signal display.
Video Field Trigger
For the trigger in the video field, carry out operations according to the following
steps:
1. Press the TRIG MENU button to display the trigger menu.
2. Press the F1 menu selection button and choose Single for Type.
3. Press the F2 menu selection button and choose CH1 for Source.
4. Press the F3 menu selection button and choose Video for type.
5. Press the F4 menu selection button and choose Field for Sync.
6. Adjust the VOLTS/DIV, VERTICAL POSITION and SEC/DIV knobs to
obtain a proper wave form display (see Fig.6-7).
Fig.6-7 Wave Form Obtained from Video Field Trigger
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