Agilent Technologies 1141A, User'S Manual And Service Manual

Page: 34 / 88

34 1141A and 1142A User’s Guide
2 Calibrating the Probe
100x Attenuator Accuracy Test
100x Attenuator Accuracy Test
NOTE
If the gain test for the probe fails, it will be reflected in the test for the 100x
attenuator adapter. Do not continue until the probe passes the gain test.
1
Disconnect the probe/attenuator from the test board. Remove the
10x attenuator adapter from the probe and connect the 100x
attenuator adapter.
2
Carefully connect the input of the probe/attenuator to the test
board in the position shown in
Figure 15 .
Figure 15 Signal to +Input
CAUTION
Avoid excessive power dissipation in the termination on the test board. Keep the
voltage input at or below ±7 Vdc.
3
Set the dc source output to 7 Vdc.
4
Record the V
in1
measurement from the top DVM in Figure 11 on
page 30.
5 Record the V
out1
measurement from the bottom DVM in Figure 11
on page 30.
6
Carefully connect the input of the probe/attenuator to the test
board in the position shown in
Figure 16 on page 34.
Figure 16 Signal to –Input