7-76 Service Guide E8364-90026
Repair and Replacement Procedures PNA Series Microwave Network Analyzers
Removing and Replacing the Midweb and the B1 Fan E8362B, E8363B, E8364B
Removing the Fan
Refer to Figure 7-36.
1. To remove the fan, it is necessary to remove the four nylon rivets that attach it to the
midweb. To do this, use the Pozidriv screwdriver on the nylon screw (item
➀) and a
small blade screwdriver to stabilize the rivet. Turn and push the rivet out of the rivet
hole. Once the four rivets are out, remove the fan.
Figure 7-36 B1 Fan Removal
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 7-80.
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