Keysight Technologies FieldFox N9913A Service Manual page 142

Repair and Replacement Procedures
Removing and Replacing the Measurement Group Assemblies
Replacing the 2.4mm Test Port Connector
(N995xA, N996xA)
1. Separate the front and rear cases. See
2. Remove all measurement group assemblies as one unit. Refer to
3. Remove the RF top assembly. Refer to
4. The 2.4mm test port connector can now be replaced by disassembling the
5. Lift the 2.4mm test port connector upwards and out of the RF bottom
6. Position the new 2.4mm test port connector onto the RF board and ensure
7. Install a new O-ring gasket over the new 2.4mm connector.
8. Continue with
9. Perform the steps under
142
Cases" on page 115.
"Removing All Measurement Group Assemblies as One Unit" on page
Top Panel Assembly" on page
nuts as below (refer to
a. Use break-over wrench, (PN: 8710-2792) to loosen front jam nut.
b. Use in-line torque screw driver with 5/16" deep socket (PN:
8710-2794) to loosen launch nut.
c. Use mini break-over wrench (PN: 8710-2793) to loosen rear jam nut.
shield.
restrainer is fully seated into pocket on shield flange. Follow the steps
below (refer to Figure
a. Use mini break-over wrench (PN: 8710-2793) to secure rear jam nut
to 16 ozf-in.
b. Use in-line torque screw driver with 5/16" deep socket (PN:
8710-2794) to secure launch nut to 10 lbf-in.
c. Use break-over wrench, (PN: 8710-2792) to secure front jam nut to
35 lbf-in.
step 5 of the
Assembly procedure on
"Separating the Front and Rear
"Removing and replacing the RF
138.
Figure 7-25):
7-25):
Removing and replacing the RF Top Panel
page 138.
"Final Assembly Procedure" on page
Keysight FieldFox Handheld Analyzers Service Guide
136.
164.