Removing And Replacing The 30-Db Fixed Attenuators (E8362B Only) - Agilent Technologies E8362B Service Manual

Repair and Replacement Procedures

Removing and Replacing the 30-dB Fixed Attenuators (E8362B only)

Removing and Replacing the 30-dB Fixed Attenuators
(E8362B only)
Tools Required
• T-10 TORX driver (set to 9 in-lb)
• T-20 TORX driver (set to 21 in-lb)
• 1/4-inch open-end wrench
• 5/16-inch open-end torque wrench (set to 10 in-lb)
• ESD grounding wrist strap
Removal Procedure
Refer to Figure 7-20
1. Disconnect the power cord.
2. Remove the outer cover. Refer to
analyzer bottom side up as shown. It may be convenient to raise the receiver deck to
provide better access. If necessary, refer to
on page 7-8.
3. Identify the fixed attenuator to be removed.
4. Disconnect the two semirigid cables (item
• Use a 1/4-inch open-end wrench, adjacent to the connector to be removed, to hold the
attenuator in a fixed position.
• Use a 5/16-inch torque wrench to loosen the cable connector.
• Repeat for the cable connector at the other end of the attenuator.
CAUTION Be careful not to damage the center pins of the semirigid cables. Some flexing
of the cables is necessary to remove the attenuator. Do not over-bend the
semirigid cables.
5. Cut the cable tie (item
from its holder. 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
7-44
for this procedure.
"Removing the Covers" on page
②
), used to secure the attenuator, and remove the attenuator
above.
CAUTION
Table 7-2 on page
PNA Series Microwave Network Analyzers
"Raising and Removing the Receiver Deck"
①
) from the attenuator:
7-80.
Service Guide E8364-90026
E8362B, E8363B, E8364B
7-6. Position the