Keysight Technologies FieldFox N9913A Service Manual page 138

Repair and Replacement Procedures
Removing and Replacing the Measurement Group Assemblies
Removing and replacing the RF Top Panel Assembly
1. Separate the front and rear cases. Refer to
2. Remove all measurement group assemblies as one unit. Refer to
3. For N991xA, N992xA, and N993xA models, refer to
4. For N995xA and N996xA models, refer to
5. To replace, position the RF top panel over the RF connectors and loosely
6. Connect cable W3 and W4 to the A5 System board connectors. There
7. Position (tuck) the cables W3 and W4 into the cavity above the A5 System
8. Plug the two connector plugs (tethered caps) back into the RF connectors
9. Perform the steps under
138
Cases" on page 115.
"Removing All Measurement Group Assemblies as One Unit" on page
Disconnect cable W3 and W4. Remove the six screws (1) and lift the RF
top panel over the RF connectors.
W3 and W4. Remove the eight screws (1) and lift the RF top panel over
the RF connectors.
reinstall the six or eight screws (1). Do not tighten these screws at this
time; they will be tightened after the front and rear cases have been
combined.
should be an audible click when the connector is fully in place.
board to avoid interference with nearby parts.
to protect the connectors.
"Separating the Front and Rear
Figure
"Final Assembly Procedure" on page
Keysight FieldFox Handheld Analyzers Service Guide
136.
Figure 7-22.
7-23. Disconnect cable
164.