185
Keysight Technologies
N9040B UXA Signal Analyzer
Service Guide
6 Analog/Digital IF Troubleshooting
What You Will Find in This Chapter
The following information is presented in this chapter:
1. Theory of operation of the IF section.
2. Isolating the cause of a hardware problem by verifying the functionality of
assemblies in the IF section signal path.
The following sections are found in this chapter:
• A2 Analog IF Assembly Description on page 186
• A2 Analog IF Assembly Theory of Operation on page 187
• A2 Analog IF Troubleshooting on page 190
• A3 Digital IF Assembly Description on page 197
• A3 Digital IF Assembly Theory of Operation on page 198
• A3 Digital IF Troubleshooting on page 200
Each of the following sections 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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