Keysight N8973B User Manual

45
Keysight NFA Series Noise Figure Analyzers
Service Guide
2 Boot Up and Initialization Troubleshooting
What You Will Find in This Chapter
This chapter provides information that is useful when starting to troubleshoot a
spectrum analyzer. It includes procedures for troubleshooting common failures
and provides information on isolating problems in the analyzer.
The following sections are found in this chapter:
Check the Basics on page 46
Instrument Boot Up Process on page 47
Typical instrument boot-up process flow on page 49
Potential Problems During Boot Process on page 52
Yellow Standby LED Does Not Illuminate on page 52
Green Power On LED Does Not Illuminate on page 54
Fan(s) Are Not Operating on page 56
No Keysight Splash Screen Displayed on page 58
Instrument Hangs at the Keysight Splash Screen on page 59
PCI Enumeration Error on page 59
Instrument Cannot Completely Load or Run the Operating System
on page 60
Troubleshooting a Blank Display on page 60
Initializations Did Not Complete on page 61
Fails an Initial Alignment on page 62
Signal Level Verification on page 66
Signal Level Problem with Input Frequencies < 3.6 GHz on page 66
Signal Level Problem with Input Frequencies > 3.6 GHz on page 67

Keysight N8973B Specifications

General

Brand	Keysight
Model	N8973B
Category	Measuring Instruments
Language	English