Agilent Technologies N5242A - Removing and Replacing the Rear Panel

7-56 Service Guide N5242-90001
Repair and Replacement Procedures PNA Series Microwave Network Analyzers
Removing and Replacing the Rear Panel N5242A
Removing and Replacing the Rear Panel
Tools Required
• T-10 TORX driver (set to 9 in-lb)
• T-20 TORX driver (set to 21 in-lb)
• ESD grounding wrist strap
Removal Procedure
Refer to Figure 7-26 for this procedure.
1. Disconnect the power cord.
2. Remove the outer and inner covers. Refer to “Removing the Covers” on page 7-6.
3. Remove the A16 power supply assembly. Refer to “Removing and Replacing the A16
Power Supply Assembly” on page 7-20.
4. Remove the A17 CPU board assembly. Refer to “Removing and Replacing the A17 CPU
Board Assembly” on page 7-22.
5. Remove all jumper cables (item
①
) from the rear panel.
6. Remove the short (item
②
) and the 50 ohm load(s) (item
③
).
7. Remove the connector hardware (item
④
) 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.
8. Remove the connector hardware (item
⑤
) from each of the RF connectors. The
hardware is not the same on each connector so note which hardware goes with which
connector.
9. Remove the 13 screws (item
⑥
) that attach the rear panel to the chassis.
10. 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 7-64.