Test External Trigger Sensitivity (4-Channel Models) - Agilent Technologies InfiniiVision 7000 Series Service Manual

2 Testing Performance

Test External Trigger Sensitivity (4-channel models)

54
4 Verify the trigger sensitivity at maximum frequency for
trigger range of 8.0 V.
a Press the Mode/Coupling key, press the External softkey,
then press the Range softkey and use the Entry knob to
set the range to 8.0 V.
b Adjust the signal generator output for reading on the
power meter of 625 W. (500mV
2
Power = Vin /50
c Check for stable triggering and adjust the trigger level
if necessary. Triggering is indicated by the Trig'd
indicator at the top of the display. When it is flashing,
the oscilloscope is not triggered. When it is not
flashing, the oscilloscope is triggered.
d Record the results as Pass or Fail in the Performance
Test Record (see
This test applies to 4- channel models only.
Verify the external trigger sensitivity at these settings:
• All 4- channel models:
500 MHz, 500 mV
= 176.78mV rms,
pp
2
= 176.78 mV /50
page 57).
pp
7000 Series Oscilloscopes Service Guide
= 625 W.)