Removing And Replacing The A25 And A26 Test Port Couplers - Agilent Technologies E8362C Service Manual

Repair and Replacement Procedures

Removing and Replacing the A25 and A26 Test Port Couplers

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
up and raise the receiver deck as shown. Refer to
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
coupler.
6. With a 1-inch torque wrench, remove the test port coupler nut (item
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
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
7-50
"Removing the Covers" on page
"Raising and Removing the Receiver Deck" on page
7-82.
PNA Series Microwave Network Analyzers
E8362C, E8363C, E8364C
7-6. Position the analyzer bottom side
①
) from the test port
➁
) from the front panel.
above.
CAUTION
Service Guide E8364-90038