Agilent Technologies 1141A, Руководство пользователя и сервисное руководство

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12 1141A and 1142A User’s Guide
1 Operating the Probe
To Set Up the Probe
Figure 3 1142A Rear Panel
2 Use the power cord to connect the 1142A to the ac mains.
The rear- panel fuse (F1) is a 0.25A, 250V time- delay fuse.
The fuse used is the same regardless of line voltage
selection. To replace the fuse:
a Locate the fuse holder shown in Figure 3 . Gently push the
fuse holder in using your finger or a flat- bladed
screwdriver.
b While the fuse holder is pushed in, gently turn the fuse
holder counterclockwise.
3 Connect the 1141A probe cable power connector to the 1142A’s
rear- panel
PROBE connector.
4 Connect the output of the probe to the input of the oscilloscope.
5 Set the input impedance of the oscilloscope to 50
Ω
..
NOTE
If the oscilloscope does not have a selectable 50
Ω
input impedance, connect a
50
Ω
BNC feed-through termination between the probe output and the input of the
oscilloscope.
6 If making an initial equipment setup, continue with the initial
adjustment in the following section.