Removing And Replacing The Front Panel Assembly - Keysight N5224A Service Manual

Repair and Replacement Procedures

Removing and Replacing the Front Panel Assembly

Removing and Replacing the Front Panel Assembly
Tools Required
• 9 mm nutsetter or open end wrench torque wrench (torque to 21 in-lb or 2.38 N.m)
• T-10 TORX driver (torque to 9 in-lb or 1.02 N.m)
• T-20 TORX driver (torque to 21 in-lb or 2.38 N.m)
• 5/16 inch open-end torque wrench (torque to 10 in-lb or 1.13 N.m)
• ESD grounding wrist strap
Removal Procedure
Refer to Figure 7-2 for this procedure.
1. Disconnect the power cord.
2. Remove the outer cover. Refer to
3. With a 5/16 inch torque wrench, remove all the semirigid jumpers (item
present).
4. Remove screws (item
screws for 4-port models.
5. With a T-20 TORX driver, remove the 12 screws (item
CAUTION Before removing the front panel from the analyzer, lift and support the front of the analyzer
frame.
6. Slide the front panel over the front-panel connectors.
7. Disconnect the ribbon cable (item
Replacement Procedure
IMPORTANT When reconnecting the front-panel jumpers, torque the connectors to 10 in-lb.
1. Reverse the order of the removal procedure.
2. Perform the post-repair adjustments, verifications, and performance tests that pertain to this removal
procedure. Refer to Table 7-2 on page
7-8
"Removing the Covers" on page
➁
) from the lower front panel. There are two screws for 2-port models and four
④
) from the A1 front panel interface board.
7-56.
PNA Series Microwave Network Analyzers
7-6.
①
) from the front panel (if
③
) from the sides of the frame.
N5224A and N5225A
Service Guide N5225-90001