Removing And Replacing The A18 Gpib Board - Keysight N5221A Service Manual

Repair and Replacement Procedures

Removing and Replacing the A18 GPIB Board

Removing and Replacing the A18 GPIB Board
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 7-11 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 rear panel. Refer to
6. Slide the A18 GPIB board out the rear 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
7-24
"Removing the Covers" on page
"Removing and Replacing the A16 Power Supply
"Removing and Replacing the A17 CPU Board Assembly"
"Removing and Replacing the Rear Panel" on page
7-56.
PNA Series Microwave Network Analyzers
7-6.
7-48.
Service Guide N5222-90001
N5221A/22A