Sony Tektronix AWG2021 Service Manual page 112

Performance Tests
4-44
4. Check external trigger high level:
a. Adjust oscilloscope controls: Press and hold the AWG2021 MANUAL
TRIGGER button and adjust the oscilloscope vertical and horizontal
position to display the waveform from the AWG2021. Release the
MANUAL TRIGGER button.
b. Enable function generator output: Turn on the function generator output.
c. Check external trigger level accuracy:
H Gradually increase the function generator offset level until a
waveform is displayed on the oscilloscope.
H Check that the function generator offset level is from +0.85 to
+1.15 V, when the waveform is first displayed.
5. Check external trigger low level:
a. Change the function generator controls:
Parameter
Offset . . . . . . . . . . . . . . . . . . . .
b. Change the AWG2021 controls:
H Push MODE!Polarity to highlight Negative.
H Select Level from the side menu, and turn the general purpose knob
to select –1 V. (You can also use the numeric and units keys to select
–1 V; then push ENTER.)
c. Check external trigger level accuracy:
H Gradually decrease the function generator offset level until a
waveform is displayed on the oscilloscope.
H Check that the function generator offset level is from –1.15 V to
–0.85 V, when the waveform is first displayed.
6. End procedure: Turn off the function generator output and disconnect the
function generator.
–0.6 V
AWG2021 Service Manual