Agilent Technologies FieldFox N9923AN Service Manual page 111

RF Vector Network Analyzer
N9923AN
Replacing the RF Assembly Including the A4 RF Board
1. Separate the front and rear cases. Refer to
page 7-8.
2. Remove all measurement group assemblies as one unit. Refer to
Measurement Group Assemblies as One Unit" on page
3. Disconnect the flexible RF cables from the A4 RF board; it is not necessary to
disconnect the cables from the A5 system board. Refer to
and Flexible RF Cables" on page
4. Remove the A5 system board. Refer to
5. Remove the BNC connector, nut, and washer from the old RF assembly and install
them in the new RF assembly. Note: Cable W3 includes the BNC connector.
6. Reinstall the A5 system board onto the new RF assembly. Refer to
System Board" on page
7. Re-connect the flexible RF cables to the A4 RF board. Refer to
Board and Flexible RF Cables" on page
8. Perform the steps under
Service Guide N9923-90005
Removing and Replacing the Measurement Group Assemblies
"Separating the Front and Rear Cases" on
7-29.
"Replacing the A5 System Board" on page
7-31.
7-29.
"Post-replacement Procedure" on page
Repair and Replacement Procedures
"Removing All
7-25.
"Replacing the A6 SOM Board
"Replacing the A5
"Replacing the A6 SOM
7-37.
7-31.
7-33