Service manual

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Disconnecting a
Cable From a Test
Port
C-
Y
.
Note
3
A avoid laterztl (bending) force on the connector mating plane
surfaces.
Caution
tl
-~-- -_ ~
~--
1. Using the spanner wrench, hold the cable stationary (see
Figure A-1 for wrench placement).
2. Using a 20 mm (8 in-lb) torque wrench, loosen the test set nut.
3. Complete the disconnection by hand, turning only the connector
nut.
Do not twist one connector out of the other (like removing a light
bulb). This happens if you turn the device body rather than the
connector nut.
4. Pull the connectors &might apart.
Connecting a Cable
1. Ground yourself and all devices (wear a grounded wrist strap, and
to a DUT
work on a static mat).
2. Visually and mechanically inspect all connectors. Always measure
the pin depth of the DUT; a protruding center conductor can
permanently damage a cable.
3. If necessary, clean all connectors.
4. Carefully align the connectors. The male connector center pin
must slip concentrically into the contact fingers of the female
connector.
5. Push the connectors straight together. Do not twist or screw them
together. As the center conductors mate, there is usually a slight
resistance.
Caution
Do not twist one connector into the other (like inserting a light
bulb). This happens if you turn the device body rather than the
connector nut.
6. The preliminary connection is tight enough when the mating plane
surfaces make uniform, light contact. Do not over tighten.
7. To assure consistent torque in the following steps, relieve any side
pressure on the connection.
c
HP 85133E/F
Reference A-3