Keysight InfiniiVision 2000 X Series, Руководство по обслуживанию

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Testing Performance
2
2000/3000 X-Series Oscilloscopes Service Guide 47
To verify trigger sensitivity
This test verifies the trigger sensitivity. In this test, you will apply a sine wave to
the oscilloscope at the upper bandwidth limit. You will then decrease the
amplitude of the signal to the specified levels, and check to see if the oscilloscope
is still triggered.
Test limits for:
• Internal trigger sensitivity on all models:
• < 10 mV/div: greater of 1 div or 5 mV
pp
• >= 10 mV/div: 0.6 div
• External trigger sensitivity on all models:
• DC to 100 MHz: < 200 mV
pp
• 100 MHz - 200 MHz: < 350 mV
pp
Test Internal Trigger Sensitivity (all models)
1 On the oscilloscope, press the [Default Setup] key.
2 Press the [Mode/Coupling] key; then, press the Mode softkey to select Normal .
Table 16 Equipment Required to Verify Trigger Sensitivity
Equipment Critical Specifications Recommended Model/Part
Signal Generator 25 MHz, 100 MHz, 350 MHz, 500 MHz,
and 1 GHz sine waves
Keysight N5181A
Power splitter Outputs differ < 0.15 dB Keysight 11667A
Power Meter Keysight N1914A
Power Sensor Keysight E9304A or N8482A
Cable BNC, Qty 3 Keysight 10503A
Adapter N (m) to BNC (f), Qty 3 Keysight 1250-0780
Feedthrough 50
Ω BNC (f) to BNC (m)
Keysight 0960-0301