Keysight DSOX1204A - Page 33

Testing Performance 2
DSOX1204A/G Oscilloscopes Service Guide 33
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,
see the “Troubleshooting” chapter. Then return here.
f Record the result as Pass or Fail in the Performance Test Record (see
page 34).
g Repeat this step for the remaining oscilloscope channels.
6 Set the output frequency of the signal generator to the maximum bandwidth of
the oscilloscope:
• 200 MHz models: 200 MHz
• 100 MHz models: 100 MHz
• 70 MHz models: 70 MHz
7 Perform these steps to test at the maximum bandwidth setting:
a Set the signal generator amplitude to about 20 mV
pp
.
b Press the [AutoScale] key.
c Set the time base to 10 ns/div.
d Set channel 1 to 10 mV/div.
e Decrease the amplitude from the signal generator as described in the
following table according to your oscilloscope’s maximum bandwidth:
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,
see the “Troubleshooting” chapter. Then return here.
f Record the result as Pass or Fail in the Performance Test Record (see
page 34).
g Repeat this step for the remaining oscilloscope channels.
Oscilloscope’s maximum
bandwidth:
Decrease amplitude until these
vertical divisions are displayed:
Which is about this V:
70 MHz 0.9 vertical divisions 9 mVpp
100 MHz 1.2 vertical divisions 12 mVpp
200 MHz 1.2 vertical divisions 12 mVpp