Removing And Replacing The A43 And A44 35-Db Receiver Step Attenuators (Option 016) - Agilent Technologies E8362C Service Manual

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 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
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
6. With a T-10 TORX driver, remove the two mounting screws (item
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 Table 7-2 on page
7-70
"Removing the Covers" on page
"Raising the Receiver Deck" on page 7-8
①
) from the appropriate attenuator.
CAUTION
7-82.
PNA Series Microwave Network Analyzers
E8362C, E8363C, E8364C
7-6. Position the analyzer bottom side
➁
) from the attenuator.
③
). Support the attenuator while
above.
Service Guide E8364-90038
if necessary.