542 Keysight N9010A EXA Service Guide
Assembly Replacement Procedures
Disk Drive
Disk Drive
There are two different types of disk drive installations that have been used in
the X-Series Signal Analyzers. Originally the drive was located inside of the A4
CPU assembly, which would need to be removed and opened up in order to
replace the drive. However, in newer instruments the disk drive has been
relocated such that it can be removed through the rear panel of the instrument.
Of course, instruments that originally had their disk drive located inside of the
A4 CPU assembly could have been upgraded with Option PC2 or Option PC4
and would now have a rear panel removable disk drive as well.
If the A5 Disk Drive is being replaced on an newer instrument, or has had an
Option PC2 or PC4 upgrade, follow the procedure below under the heading
“Rear Panel Removable Disk Drive”. If the instrument has an older CPU, and
has not had an Option PC2 or PC4 upgrade, follow the procedure below under
the heading “Internally Mounted Disk Drive” for instructions on replacing the
A5 Disk Drive.
Rear Panel Removable Disk Drive
Drive Removal and Replacement
Before replacing the A5 disk drive it is highly recommended that the factory
calibration data be backed up to an external drive if at all possible. If this data
is not backed up prior to replacing the disk drive all instrument adjustments
and performance verification tests will need to be run after the drive is
replaced.
For information on how to backup this data see the “Calibration Data Backup
and Restore” section in Chapter 16, “Post-Repair Procedures.” of this manual.
If this data cannot be backed up because the instrument will not fully boot, go
ahead and change the A5 Disk Drive and perform all adjustments listed in
Chapter 16, “Post-Repair Procedures.” for the A5 assembly.
Refer to Figure 15-60 and Figure 15-61 for illustrations of the difference between the new
CPU and old CPU assemblies.
Electrostatic discharge (ESD) can damage or destroy electronic components. All work on
electronic assemblies should be performed at a static-safe workstation. Refer to the
documentation that pertains to your instrument for information about static-safe workstations
and ordering static-safe accessories.
Electrostatic discharge (ESD) can damage or destroy electronic components. All work on
electronic assemblies should be performed at a static-safe workstation. Refer to the
documentation that pertains to your instrument for information about static-safe workstations
and ordering static-safe accessories.
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