Removing And Replacing The Rear Panel - Keysight N5221A Service Manual

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)
• ESD grounding wrist strap
Removal Procedure
Refer to Figure 7-24 for this procedure.
1. Disconnect the power cord.
2. Remove the outer and inner covers. Refer to
3. Remove the A16 power supply assembly. Refer to
Assembly" on page 7-20.
4. Remove the A17 CPU board assembly. Refer to
on page 7-22.
5. Remove the short (item
6. Remove the connector hardware (item
not the same on each connector so note which hardware goes with which connector.
7. Remove the connector hardware (item
same on each connector so note which hardware goes with which connector.
8. Remove the 13 screws (item
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 Table 7-2 on page
7-48
"Removing the Covers" on page
"Removing and Replacing the A17 CPU Board Assembly"
①
) and the 50 ohm load(s) (item
③
) from each of the five multi-pin connectors. The hardware is
④
) from each of the RF connectors. The hardware is not the
⑤
) that attach the rear panel to the chassis.
7-56.
PNA Series Microwave Network Analyzers
"Removing and Replacing the A16 Power Supply
➁
).
N5221A/22A
7-6.
Service Guide N5222-90001