7-14 Service Guide N5230-90024
Repair and Replacement Procedures PNA Series Microwave Network Analyzers
Removing and Replacing the A4 Power Supply Assembly N5230C
Removing and Replacing the A4 Power Supply Assembly
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 7-5 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. With a T-10 TORX driver, remove the five screws (item
①
) from the power supply assembly.
4. Lift out and remove the A4 power supply assembly.
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 7-54.
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