Agilent Technologies N8201A Connector Removal

96 Agilent N8201A Performance Downconverter Synthetic Instrument Module, 3 Hz to 26.5 GHz

5Preventive Maintenance

Connector Removal

These are removed by two captured screws, one on each end of the connector; th ese

usually can be turned by hand. Use a flathead screwdriver if necessary.

GPIB connectors often are stacked two or three deep. When you are removing multiple

GPIB connectors, disconnect each connector one at a time. It is a good practice to connect

them back together even if you have not yet replaced the instrument; th is avoids confusion,

especially if more than one instrument has been removed.

When putting GPIB connectors back on, you must again detach them from one another and

put them on one at a time.

These are precision connectors. Always use care when connecting or discon necting this

type of connector. When reconnecting, make sure you align the male connector properly.

Carefully join the connectors, being careful not to cross-thread them.

Loosen precision 3.5 mm connectors on flexible cables by turning the connector nut

counter-clockwise with a 5/16 inch wrench. Always reconnect using an 8 inch-lb torque

wrench (Agilent part number 8720-1765). Semir igid cables are metal tubes, custom-formed

for this system from semirigid coax cable stock.

The semirigid cables that go to the RF outputs of some devices have a gold connector nut.

These do not turn. Instead, the RF connector on the instrument has a cylindrical conne ctor

body that turns. To disconnect this type of connector, turn the connector body on the

instrument clockwise. This action pushes the cable’s connector out of the instrument

connector.

To reconnect, align the cable with the connector on the instrument. Turn the connector

body counterclockwise. You may have to move the cable slightly until alignm ent is correct

for the connectors to mate. When the two connectors are properly aligned, turning the

instrument’s connector body will pull in the semirigid cable’s connector. Tighten firmly by

hand.

All other semirigid cable connectors use a silver-colored nut that can be turned. To remove

this type of connector, turn the silver nut counter-clockwise with a 5/16 inch wrench.

When reconnecting this type of cable:

•Carefully insert the male connector center pin into the female connector. (Make sure the

cable is aligned with the instru ment connector properly before joining them.)