Keysight Technologies N9040B UXA Signal Analyzer Service Guide 221
CPU/Disk Drive Troubleshooting
A5 Disk Drive Troubleshooting
Replacing the instrument disk drive
If the above two procedures did not resolve the booting issue, the disk drive
should be replaced. Please refer to the “A4 CPU/A5 Solid State Drive”
replacement section in Chapter 15, “Assembly Replacement Procedures.”.