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Performance Tests
2-50
TDS5000B Series Specifications and Performance Verification
H Press the Trigger Slope button to select the positive slope.
H Adjust the Trigger LEVEL knob to produce a stable trigger. CHECK
that the trigger is stable for the test waveform on the positive slope.
H Press the Trigger Slope button to select the negative slope. Adjust
the Trigger LEVEL knob so that there is a stable trigger. CHECK
that the trigger is stable for the test waveform on the negative slope.
H Enter the pass/fail result for trigger in the test record.
H Leave the trigger system triggered on the positive slope of the
waveform before continuing to the next step.
Check ifstable trigger.
Figure 2- 21: Measurement of t rigger sensitivity showing 50 MHz results
c. Check Delayed trigger s ystem for stable triggering at limits: Do the
following subparts in the order listed.
H From the toolbar click Trig, select the AEventtab, and set the
Source to Line.
H Select the A-- >B Seq tab, and then click the A then B T rig After
Time button.
H Select the BEventtab,andthenclicktheSet 50% button.
CHECK that a stable trigger is obtained for the test waveform for
both the positive and negative slopes of the waveform. Use the
TRIGGER LEVEL knob to stabilize the Main trigger. Click BTrig
Level, and use the keypad or the multipurpose knob/FINE button to