139
Keysight Technologies
N9040B UXA Signal Analyzer
Service Guide
4 RF Section Troubleshooting
(RF/Microwave Analyzers)
What You Will Find in This Chapter
The following information is found in this chapter:
1. Theory of operation of the RF section.
2. Isolating the cause of an hardware problem by verifying the functionality
of assemblies in the RF section signal path.
The following sections are found in this chapter:
RF Section Description on page 140
Quick Check to Verify the Low Band Signal Path on page 146
Troubleshooting a Low Band Problem on page 150
Quick Check to Verify High Band RF Path on page 157
Troubleshooting a High Band Problem on page 161
Each section describes how the assembly works and gives information to help you troubleshoot
the assembly. Each description covers the purpose of the assembly, describes the main
components, and lists external connections to the assembly.
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