Agilent Technologies FieldFox N9923AN Service Manual page 97

RF Vector Network Analyzer Repair and Replacement Procedures
N9923AN Removing and Replacing the Front Panel Group Assemblies
6. Reinstall the RPG knob. Refer to step 3.b of this procedure.
7. Perform the steps under "Post-replacement Procedure" on page 7-24.
Figure 7-14 Replacing the RPG and RPG Knob
Service Guide N9923-90005 7-19