Keysight N9923A Service Guide 3-3
Tests and Adjustments
Before You Begin
— Look for metal particles, scratches, and
dents
Connector Cleaning
Do
— Try compressed air first
Do Not
— Use any abrasives
— Use isopropyl alcohol
a
• Get liquid into plastic support beads
— Clean connector threads
Gaging Connectors
Do
— Clean and zero the gage before use
Do Not
— Use an out-of-specification
connector
— Use the correct gage type
— Use correct end of calibration block
— Gage all connectors before first use
Making Connections
Do
— Align connectors carefully
Do Not
— Apply bending force to connection
— Make preliminary connection contact
lightly
— Over tighten preliminary connection
— Turn only the connector nut
— Twist or screw any connection
— Use a torque wrench for final
connection
— Tighten past torque wrench “break”
point
a. Cleaning connectors with alcohol shall only be done with the instrument’s power cord removed, and in a well-ventilated
area. Allow all residual alcohol moisture to evaporate, and the fumes to dissipate prior to energizing the instrument.
Table 3-1
Connector Care Quick Reference Guide