7-50
Service Guide E8364-90038
Repair and Replacement Procedures
PNA Series Microwave Network Analyzers
Removing and Replacing the A25 and A26 Test Port Couplers
E8362C, E8363C, E8364C
Removing and Replacing the A25 and A26 Test Port Couplers
Tools Required
•
T-10 TORX driver (set to 9 in-lb)
•
T-20 TORX driver (set to 21 in-lb)
•
5/16-inch open-end torque wrench (set to 10 in-lb)
•
1-inch open-end torque wrench (set to 72 in-lb)
•
ESD grounding wrist strap
Removal Procedure
Refer to
Figure 7-22
for this procedure.
1. Disconnect the power cord.
2. Remove the outer cover. Refer to
“Removing the Covers” on page 7-6
. Position the analyzer bottom side
up and raise the receiver deck as shown. Refer to
“Raising and Removing the Receiver Deck” on page
7-8
if necessary.
3. Identify the test port coupler to be removed.
4. Remove the A43 or A44 receiver step attenuator, if present. This will allow access to the test port
couplers. Refer to
“Removing and Replacing the A43 and A44 35-dB Receiver Step Attenuators (Option
016)” on page 7-70
.
5. With a 5/16-inch torque wrench, disconnect the two semirigid cables (item
①
) from the test port
coupler.
6. With a 1-inch torque wrench, remove the test port coupler nut (item
➁
) from the front panel.
CAUTION
Be careful not to damage the center pins of the semirigid cables. Some flexing of the cables
is necessary to remove the assembly. Do not over-bend the semirigid cables.
7. Remove the test port coupler from the analyzer. Observe the
CAUTION
above.
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 7-82
.
Summary of Contents for E8362C
Page 11: ...Service Guide E8364 90038 1 1 1 Safety and Regulatory Information ...
Page 21: ...Service Guide E8364 90038 2 1 2 General Product Information ...
Page 33: ...Service Guide E8364 90038 3 1 3 Tests and Adjustments ...
Page 81: ...Service Guide E8364 90038 4 1 4 Troubleshooting ...
Page 137: ...Service Guide E8364 90038 5 1 5 Theory of Operation ...
Page 171: ...Service Guide E8364 90038 6 1 6 Replaceable Parts ...
Page 257: ...Service Guide E8364 90038 7 1 7 Repair and Replacement Procedures ...
Page 341: ...Service Guide E8364 90038 8 1 8 General Purpose Maintenance Procedures ...