Agilent Technologies 1141A, Руководство пользователя и сервисное руководство

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Service 4
Removing and Replacing Assemblies
1141A and 1142A User’s Guide 69
c
Insert the grounding screw through the top cover and
screw it into the ground block as shown in the figure
above.
6 Replace the bottom cover.
a
Position the cable strain relief and with one hand, hold
the cable and top cover together. The flange on the strain
relief has a notch that fits over a protrusion in the top
cover.
CAUTION
Note where the two pins at the rear of the top cover enter the holes in the PC
assembly. Position the cable wires away from these two areas. When the bottom
cover is closed, part of it will pinch wires that are laying over these areas.
b
Insert the pins at the front of the bottom cover into the
holes at the front of the top cover.
c
Close the covers together and fasten with the probe clamp
ring. If the covers do not fit together tightly and easily,
check for pinched wires (see caution above).
To Disassemble the Probe
Adapters
Use the following procedure to disassemble the probe adapters. The
adapter housing consists of two plastic parts, one of which slides
into the other. The parts are held together by the spring effect of
two plastic tabs on the inner part. Mechanically, the ac adapter is
about the same as the 10x and 100x attenuator adapters. The
attenuator adapters have an extra ground connector which connects
the substrate ground to the thumb wheel screw and plating inside
the housing.
Disassemble Adapter
1 Remove the probe tip caps and probe tips from the adapter input.
2 Hold the adapter in one hand taking care not to block the output
end of the adapter (the end which attaches to the probe).
3
Note the view of the input end of the adapter in the figure below.
The arrows indicate the holding tabs.
Figure 40 Disassembling Adapters