Agilent Technologies 6000 Series Service Manual page 57

6000 Series Oscilloscopes Service Guide
2 Set up the oscilloscope.
a Press the Save/Recall key, then press the Default Setup
softkey.
b On 300 MHz, 500 MHz, and 1 GHz models, set the External
Trigger impedance to 50 Ohm. 100 MHz models do not have
this option, so you need to use a 50 ohm feedthrough
terminator as shown in
c Change the trigger Mode from Auto to Normal.
d Use the Range softkey and the Entry knob to set the range
to 1.0 V.
3 Verify the trigger sensitivity at maximum frequency.
a Change the signal generator output frequency:
MSO/DSO6102A: 1 GHz
MSO/DSO6052A: 500 MHz
MSO/DSO6032A: 300 MHz
MSO/DSO6012A: 100 MHz
b Set the power meter Cal Factor % to the appropriate value
(100, 300, 500 MHz or 1 GHz) on the calibration chart on
the power sensor. If necessary, do a linear interpolation if
the correct factor is not included in the power meter's
calibration chart.
c Adjust the signal generator output for a reading on the
power meter of 100µW. (200 mV
2
Vin /50Ω = 70.71 mV
d Press the Trigger Edge key, then press the Source softkey to
set the trigger source to external trigger.
e 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.
f Record the results as Pass or Fail in the Performance Test
Record (see page
If the test fails, see the "Troubleshooting" chapter. Then
return here.
Testing Performance
Figure 7.
= 70.71mV rms, Power =
pp
2
/50Ω = 100µW.)
61).
2
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