Removing And Replacing The A20 Power Supply Assembly - Keysight N5227A Service Manual
2-port and 4-port
pna microwave
network analyzer
10 mhz - 67 ghz
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Also See for N5227A:
- Installation and service manual (72 pages) ,
- Security features and document of volatility (34 pages) ,
- Service manual (370 pages)
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Repair and Replacement Procedures
PNA Series Microwave Network Analyzers
Removing and Replacing the A20 Power Supply Assembly
N5227A
Removing and Replacing the A20 Power Supply Assembly
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 7-3
for this procedure.
1. Disconnect the power cord.
2. Remove the outer and inner covers. Refer to
"Removing the Covers" on page
7-6.
①
3. Remove the three flat head screws (item
) from the power supply bracket.
➁
4. Remove the seven pan head screws (item
) from the power supply rear panel.
5. Slide the A20 power supply assembly 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
7-54.
7-16
Service Guide N5227-90001
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Troubleshooting
