Performance Tests (MSO70000/C Series, DSA/DPO70000B/C Series, and DPO7000 Series)
Set the generat
or amplitude on screen as follows:
Model Divisions
≥ 4 GHz models
4 divisions
< 4 GHz models
7 divisions
Now fine adjust the generator output until the Ch 1 Amplitude readout
indicates the amplitude is as follows (Readout may fluctuate):
Model Amplitude
≥ 4 GHz mode
ls
400 mV
<4GHzmod
els
700 mV
Disconnect the 50 Ω precision coaxial cable at Ch 1 and reconnect it
to Ch 1 through a 10X attenuator.
b. Check the A trigger system for stable triggering at limits:
Read th
e following definition: A stable trigger is one that is consistent;
that is, one that results in a u niform, regular display triggered on the
selected slope (positive or negative). This display should not have its
trigger point switching between opposite slopes, nor should it roll
across the screen. At horizontal scale settings of 2 ms/division and
faster, Trig’d will remain constantly lighted. It will flash for slower
sett
ings.
Press the Trigger Slope button to select the positive 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 positive slope.
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.
Enter pass or fail in the test record.
Leave the trigger system triggered on the positive slope of the
waveform before continuing to the next step.
MSO70000/C, DSA70000B/C, DPO7000B/C, DPO7000, MSO5000, DPO5000 Series 3–91
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