Triggering on video fields
Automatic. To trigger on the video fields, follow these steps:
1. Push the Autoset button. When Autoset is complete, the oscilloscope
displays the video signal with sync on All Fields.
The oscilloscope sets the Standard option when you use the Autoset function.
2. Push the Odd Field or Even Field option buttons from the Autoset Menu to
sync on odd or even fields only.
Manual. An alternative method requires more steps, but may be necessary
depending on the video signal. To use the manual method, follow these steps:
1. Push the 1 (channel 1 menu) button.
2. Push Coupling ► AC.
3. Push the Trigger Menu button to see the Trigger Menu.
4. Push the top option button and select Video.
5. Push Source ► Ch1.
6. Push the Sync option button and select All Fields, Odd Field, or Even Field.
7. On page 2 of the side menu, push Standard ► NTSC.
8. Turn the Horizontal Scale (seconds/division) knob to see a complete field
across the screen.
9. Turn the Vertical Scale (volts/division) knob to ensure that the entire video
signal is visible on the screen.
Triggering on video lines
Automatic. You can also look at the video lines in the field. To trigger on the
video lines, follow these steps:
1. Push the Autoset button.
2. Push the top option button to select Line to sync on all lines. (The Autoset
Menu includes All Lines and Line Number options.)
Manual. An alternative method requires more steps, but may be necessary
depending on the video signal. To use this method, follow these steps:
1. Push the Trigger Menu button to see the Trigger Menu.
2. Push the top option button and select Video.
3. Push the Sync option button and select All Lines or Line Number and turn
the Multipurpose knob to set a specific line number.
4. Push Standard ► NTSC.
5. Turn the Horizontal Scale (seconds/division) knob to see a complete video
line across the screen.
6. Turn the Vertical Scale (volts/division) knob to ensure that the entire video
signal is visible on the screen.
Application examples
TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 45
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