Agilent Technologies E8362B Service Manual page 310

Repair and Replacement Procedures
Removing and Replacing the A43 and A44 35-dB Receiver Step Attenuators (Option 016)
Removing and Replacing the A43 and A44 35-dB Receiver
Step Attenuators (Option 016)
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)
• ESD grounding wrist strap
Removal Procedure
Refer to Figure 7-26
1. Disconnect the power cord.
2. Remove the outer cover. Refer to
analyzer bottom side up and raise the receiver deck as shown. Refer to
Receiver Deck" on page 7-8
3. Identify the step attenuator to be removed.
4. Disconnect the ribbon cable (item
5. With a 5/16-inch torque wrench, disconnect the two semirigid cables (item
attenuator.
6. With a T-10 TORX driver, remove the two mounting screws (item
attenuator while removing the mounting hardware.
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 attenuator from the analyzer. Observe the
Replacement Procedure
1. Reverse the order of the removal procedure using the existing attenuator ribbon cable.
2. Perform the post-repair adjustments, verifications, and performance tests that pertain
to this removal procedure. Refer to
7-68
for this procedure.
"Removing the Covers" on page
if necessary.
①
) from the appropriate attenuator.
Table 7-2 on page
PNA Series Microwave Network Analyzers
E8362B, E8363B, E8364B
7-6. Position the
"Raising the
③
). Support the
above.
CAUTION
7-76.
Service Guide E8364-90026
②
) from the