7-8 Keysight N5224A/25A Service Guide
Repair and Replacement Procedures
Removing and Replacing the Front Panel Assembly
7-
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
for this procedure.
1.
Disconnect the power cord.
2.
Remove the outer cover. Refer to
“Removing the Covers” on page 7-6
3.
With a 5/16 inch torque wrench, remove all the semirigid jumpers (item
①
) from the front panel (if present).
4.
Remove screws (item
➁
) from the lower front panel. There are two screws
for 2-port models and four screws for 4-port models.
5.
With a T-20 TORX driver, remove the 12 screws (item
③
) from the sides of
the frame.
6.
Slide the front panel over the front-panel connectors.
7.
Disconnect the ribbon cable (item
④
) from the A1 front panel interface
board.
Replacement Procedure
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
.
Before removing the front panel from the analyzer, lift and support the
front of the analyzer frame.
When reconnecting the front-panel jumpers, torque the connectors to 10
in-lb.
