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Performance Tests
TDS 520A, 524A, 540A, & 544A Performance Verification
d.
Modify the initialized front-panel control settings:
Set the horizontal SCALE to 200 s.
Press SHIFT; then ACQUIRE MENU.
Press the main-menu button Mode. Then press the side-menu
button Hi Res.
2.
Confirm Main and Delayed Trigger outputs are within limits for logic
levels:
a.
Display the test signal:
Press WAVEFORM OFF to turn off CH 1; then press CH 2 to
display that channel. Set the vertical SCALE to 1 V.
Press TRIGGER MENU.
Press the main-menu button Source; then press the side-menu
button CH 3. Press SET LEVEL TO 50%.
Use the vertical POSITION knob to center the display on screen.
b.
Measure logic levels:
Press MEASURE; then press the main-menu button Select
Measrmnt for
Ch2
.
Repeatedly press the side-menu button –more– until High and
Low appear in the side menu (their icons are shown at the left).
Press both side-menu buttons High and Low. See Figure 1-22.
First, turn on the
measurements
high and low.
Second, read the
measurement
results here.
Figure 1-22: Measurement of Main Trigger Out Limits