Keysight Technologies InfiniiVision 6000 X Series, Service Manual

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48 6000 X-Series Oscilloscopes Service Guide
2
Testing Performance
4 To verify the trigger sensitivity, for each of the settings listed in the following
table for your oscilloscope model, follow these steps:
a Set the Signal Generator Frequency .
b Set the Signal Generator Amplitude .
c Press the [Auto Scale] key.
d Press [Acquire] > Acq Mode and select Averaging . Press # Avgs and set the value
to 64 .
e Set the time base to 10 ns/div.
f Set channel 1 to Oscilloscope V/div .
g Decrease the amplitude from the signal generator until Vertical Division of
Signal is displayed.
The trigger is stable when the displayed waveform is stable. If the trigger is
not stable, try adjusting the trigger level. If adjusting the trigger level makes
the trigger stable, the test still passes. If adjusting the trigger does not help,
change the trigger edge to trigger on falling edge, try adjusting the trigger
level again. If trigger on falling edge makes the trigger stable, the test still
passes. If changing to falling edge trigger does not help, see the
“Troubleshooting” chapter. Then return here.
h Record the result as Pass or Fail in the Performance Test Record (see
page 52 ).
i Repeat this step for the remaining oscilloscope channels.
Oscilloscope BW
Model
Signal Generator
Frequency
Signal Generator
Amplitude
Oscilloscope
V/div
Vertical Division of Signal
1 GHz 1 GHz 10 mV
pp
5 mV/div 1 vertical division (about 5 mV
pp
)
1 GHz 20 mV
pp
10 mV/div 0.6 vertical division (about 6 mV
pp
)
2.5 GHz, 4 GHz,
and 6 GHz
2 GHz 10 mV
pp
5 mV/div 1 vertical division (about 5 mV
pp
)
2 GHz 20 mV
pp
10 mV/div 0.6 vertical divisions (about 6 mV
pp
)
3.5 GHz 10 mV
pp
5 mV/div 1.5 vertical division (about 7.5 mV
pp
)
3.5 GHz 20 mV
pp
10 mV/div 1 vertical division (about 10 mV
pp
)