Triggering On Video Fields - Tektronix TPS2000 Series User Manual

Application Examples
NOTE. Most video systems use 75 ohm cabling. The oscilloscope
inputs do not properly terminate low impedance cabling. To avoid
amplitude inaccuracy from improper loading and reflections, place a
75 ohm feedthrough terminator (Tektronix part number 011- - 0055- - 02
or equivalent) between the 75 ohm coaxial cable from the signal
source and the oscilloscope BNC input.

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 CH 1 MENU button.
2. Push Coupling
3. Push the TRIG MENU button to see the Trigger Menu.
4. Push the top option button and select Video.
5. Push Source
6. Push the Sync option button and select All Fields, Odd Field, or
Even Field.
4- 28
AC.
CH1.
TPS2000 Series Digital Oscilloscope User Manual