Agilent Technologies 54657A Specifikace Strana 123

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To adjust the Option 005 offset (R15)
The oscilloscope must be calibrated before performing this adjustment. Refer to
"To perform the self-calibration" on page 4–25.
Table 4-13
Equipment Required
Equipment Required Critical Specification Recommended
Model/Part
Digital Multimeter 0.1 mV resolution, accuracy ±0.05% Agilent 34401A
Adapter BNC (m) to dual banana post Agilent 10110B
1 Set up the oscilloscope for the voltage adjustment.
a Turn off the oscilloscope.
b Remove the cabinet from the oscilloscope.
c Connect the negative lead of the digital multimeter to a ground point
on the oscilloscope.
d Connect the oscilloscope rear-panel VERT OUT connector to the
voltage inputs of the digital multimeter (DMM) using the DMM’s test
leads and the BNC to dual banana post adapter.
e Turn on the oscilloscope
f Setup the digital multimeter for a DC voltage measurement.
g Press the Setup front panel key on the oscilloscope.
h Press the Default Setup softkey on the oscilloscope.
2
Adjust R15 (below VERT OUT connector) on the Option 005 PC board
so that the measured voltage on the digital multimeter is 0 volts ± 1
mV.
If adjusting R15 does not bring the voltage within tolerance, see "To
troubleshoot Option 005" at the end of the troubleshooting section.
Service
Adjusting the Oscilloscope
4–31
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