Repair and Replacement Procedures
Removing and Replacing the A20 LODA
Removing and Replacing the A20 LODA
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 7-14
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. With a 5/16-inch torque wrench, disconnect the six semirigid cables (item
4. Disconnect the ribbon cable (item
5. With a T-10 TORX driver, remove the six mounting screws (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.
6. Remove the A20 LODA 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
7-40
"Removing the Covers" on page
"Raising and Removing the Receiver Deck" on page
➁
) at the A20 LODA.
CAUTION
7-82.
PNA Series Microwave Network Analyzers
E8362C, E8363C, E8364C
7-6. Position the analyzer bottom side
①
) from the A20 LODA.
③
).
above.
Service Guide E8364-90038