Keysight N5224A/25A Service Guide 7-51
Repair and Replacement Procedures
Removing and Replacing the Rear Panel
Removing and Replacing the Rear Panel
Tools Required
— 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 nutsetter (torque to 10 in-lb or 1.13 N.m)
— 5/16 inch nutsetter (torque to 21 in-lb or 2.38 N.m)
— 5/8 inch nutsetter (torque to 21 in-lb or 2.38 N.m)
— 9/32 inch nutsetter (torque to 9 in-lb or 1.02 N.m)
— 3/16 inch nutsetter (torque to 6 in-lb or 0.68 N.m)
— 9/16 inch nutsetter (torque to 21 in-lb or 2.38 N.m)
— 9 mm nutsetter (torque to 21 in-lb or 2.38 N.m)
— ESD grounding wrist strap
Removal Procedure
Refer to
for this procedure.
1.
Disconnect the power cord.
2.
Remove the outer and inner covers. Refer to
.
3.
Remove the A20 power supply assembly. Refer to
Replacing the A20 Power Supply Assembly” on page 7-22
4.
Remove the A21 CPU board assembly. Refer to
the A21 CPU Board Assembly” on page 7-24
5.
Remove the 50 ohm load(s) (item
➁
).
6.
Remove the connector hardware (item
③
) from each of the five multi-pin
connectors. The hardware is not the same on each connector so note
which hardware goes with which connector.
7.
Remove the connector hardware (item
④
) from each of the RF connectors.
The hardware is not the same on each connector so note which hardware
goes with which connector.
8.
Remove the 13 screws (item
⑤
) that attach the rear panel to the chassis.
9.
Slide the rear panel over the cable connectors and off of the analyzer.
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
.
