
Assembly Replacement 8712ET/ES and 8714ET/ES
A8 Internal Disk Drive Assembly Replacement RF Network Analyzers
3-22 Service Guide
A8 Internal Disk Drive Assembly Replacement
The disk drive must be replaced if it fails. However, before replacing the drive, try cleaning
the drive with a suitable cleaning device, or by spraying it with clean compressed air. Most
“failed” drives are only in need of a cleaning.
CAUTION Perform the followingonly at an approved ESD workstation. SeeFigure 4-1
on page4-3.
Removing the 3.5" Disk Drive Assembly
1.Disconnect the power cord.
2.Remove the front panel assembly (see“Removing the Front Panel Assembly” on page
3-4).
3.Remove the CPU assembly (see“Removing the CPU Board Assembly” on page 3-6).
4.Remove the four screws anchoring the disk drive to the CPU assembly.
5.Disconnect the ribbon cable and power cable.
Installing the 3.5" Disk Drive Assembly
To install the 3.5” disk drive assembly into the analyzer, reverse the steps of the
“Removing the 3.5" Disk Drive Assembly” procedure.
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