7-60 Service Guide E8364-90026
Repair and Replacement Procedures PNA Series Microwave Network Analyzers
Removing and Replacing the A40 Floppy Disk Drive E8362B, E8363B, E8364B
Removing and Replacing the A40 Floppy Disk Drive
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 7-28 and Figure 7-29 for this procedure.
1. Disconnect the power cord.
2. Remove the outer and inner covers. Refer to “Removing the Covers” on page 7-6.
3. Remove the front panel assembly. Refer to “Removing and Replacing the Front Panel
Assembly” on page 7-10.
4. Remove the A13 (Option 080) frequency offset receiver assembly, if present. Refer to
“Removing and Replacing the A13 Frequency Offset Receiver Assembly” on page 7-24.
5. Remove the A12 source 20. Refer to “Removing and Replacing the A12 Source 20” on
page 7-22.
6. Disconnect the ribbon cable (item
①) from the A14 system motherboard.
7. Lift the tab at the rear of the A40 floppy disk drive enclosure and remove the rear
enclosure cover (item
②).
8. Slide the A40 floppy disk drive out of the front of the enclosure. The A40 floppy disk
drive fits snugly. You may have to push the drive from the back to remove it from the
analyzer.
Replacement Procedure
1. Reverse the order of the removal procedure using the existing ribbon cable (item ①).
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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