50 Keysight NFA Series Noise Figure Analyzers Service Guide
Boot Up and Initialization Troubleshooting
Instrument Boot Up Process
7. If the recovery system is not selected the Windows 7 FES operating
system will begin to boot up. This will take ~20-30 seconds.
8. The Keysight Technologies logo is displayed in white font on a black
background while Windows finishes loading user preferences. This can
take up to 4 minutes. If this does not occur refer to the “Instrument Cannot
Completely Load or Run the Operating System” section in this chapter.
9. By default, the initialization process of the Noise Figure Analyzer
application begins loading. The Noise Figure Analyzer screen appears. The
screen remains for slightly over 1 minute. If any of the initializing
processes do not complete, refer to the “Initializations Did Not Complete”
section in this chapter.
10.While the application software is loading the instrument will perform a
number of internal alignments before the analyzer begins to sweep. A
screen with a black background appears and the alignment progress is
shown in a gray box. The number of alignments is dependent on which
hardware options are present. If an alignment fails, refer to the “Fails an
Initial Alignment” section in this chapter.
11.If any of the initial alignments fail, check the alignment history for
troubleshooting hints.
The instrument alignment history can be found at:
E:\AlignDataStorage\AlignmentHistory.txt
Look for any failed status for the various internal hardware items listed in
this file.
Once the Noise Figure Analyzer application is fully initialized and aligned, the
sweep should resemble Figure 2-2 when delivered from the factory. This
completes the boot process from initial AC power to the spectrum analyzer
application.
IMPORTANT If the power up state has been changed from the factory power on state by
the user, the analyzer will boot to that state.
If a recovery was selected follow the on-screen instructions and perform a
system recovery. Additional information about performing a system
recovery can be found in Chapter 9, “CPU/Disk Drive Troubleshooting”, on
page 291 in this manual.
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