211
Keysight Technologies
N9040B UXA Signal Analyzer
Service Guide
8 CPU/Disk Drive Troubleshooting
What You Will Find in This Chapter
The following information is presented in this chapter:
1. Theory of operation of the Processor section.
2. Isolating the cause of a hardware problem by verifying the functionality of
assemblies in the Processor section.
This following sections are found in this chapter:
A4 Processor Description on page 212
A4 Processor Assembly Troubleshooting on page 215
A5 Disk Drive Description on page 216
A5 Disk Drive Troubleshooting on page 219
Troubleshooting Software Related Issues on page 219
Reloading the Instrument Application Software on page 219
Disk Drive Recovery Process on page 220
Replacing the instrument disk drive on page 221
Each section first describes how the assembly works, then gives information to help you
troubleshoot the assembly. Each description explains the purpose of the assembly, describes
the main components, and lists external connections to the assembly.
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