7-66 Service Guide E8364-90038
Repair and Replacement Procedures PNA Series Microwave Network Analyzers
Removing and Replacing the A41 Hard Disk Drive (HDD) E8362C, E8363C, E8364C
Reassembly Procedure
NOTE If the HDD is being replaced by the HDDA (N8980A or N8981A), it is not necessary to 
perform these steps.
If the HDD is equipped with a parallel ATA interface, follow the step below.
• With the disk drive bracket right-side up (it is shown upside down in Figure 7-29 on page 7-64), insert 
four bushings (item 
➁) into the four holes in the bracket.
If the HDD is equipped with a serial ATA interface, follow the step below.
• With the disk drive bracket right-side up (it is shown upside down in Figure 7-30 on page 7-65), insert 
two bushings (item 
➁) with short collars in the two holes on the bracket that are furthest from the 
interface board.
• Place the nylon spacer (item ⑤) on the bracket.
Regardless of which ATA interface the HDD is equipped with, follow the steps below.
1. Connect the new HDD (item 
④
) to the interface board (item 
③
) by pushing it firmly into the connector 
on the interface board. Take special care to align the connector pins. Applying power to a misaligned 
connection can permanently damage the HDD.
2. While holding the HDD in place, turn the bracket over and insert the other four bushings (item 
➁), into 
the other side of the holes. As per Figure 7-30 on page 7-65, the Serial ATA Interface uses bushings with 
long
 collars in the two holes on the bracket that are closest to the interface board.
3. Install the four screws (item 
①
), finger tight, through the four bushings (item
 
➁), to attach the HDD to 
the bracket.
With a T-10 TORX driver, snug-tighten the four screws in a Z-pattern, and then torque them, in the 
same pattern, to 7 in-lb.
Reinstalling the HDDA
1. Reinstall the HDDA into the analyzer:
a. Slide the HDDA into the slot in the rear panel and push it firmly into place to engage the connector. 
Refer to Figure 7-28 on page 7-63.
b. With a T-10 TORX driver, tighten the four HDDA mounting screws (item 
①).