Keysight N9912A Service Manual page 117

Repair and Replacement Procedures
Removing and Replacing the Measurement Group Assemblies
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. Unplug the two connector plugs (tethered caps) from the type-N RF
4. Disconnect cable W3.
5. Remove the six screws (item 1) and lift the RF top panel over the type-N
6. Position the new RF top panel over the type-N RF connectors and loosely
7. Connect cable W3 to the A5 system board connector. There should be an
8. Position (tuck) the cable W3 into the cavity above the A5 system board to
9. Plug the two connector plugs (tethered caps) back into the type-N RF
10.Perform the steps under
Figure 7-19 Replacing the RF Top Panel Assembly
Keysight N9912A Service Guide
Cases" on page 7-9.
"Removing All Measurement Group Assemblies as One Unit" on
page 7-29.
connectors.
RF connectors.
reinstall the six screws (item 1). Do not tighten these screws at this time;
they will be tightened after the front and rear cases have been combined.
audible click when the connector is fully in place.
avoid interference with nearby parts.
connectors to protect the connectors.
"Separating the Front and Rear
"Post-replacement Procedure" on page 7-43.
7-31