Keysight N9040B Option 508 - Page 70

70 Keysight Technologies N9040B UXA Signal Analyzer Service Guide
Boot Up and Initialization Troubleshooting
Potential Problems During Boot Process
Using an external USB keyboard and mouse you can also access the alignment
history, which can be found in a text file at:
E:\AlignDataStorage\AlignmentHistory.txt
You will find the most current alignment information at the bottom of this file.
Look for the failed alignments and troubleshoot the Related Hardware based
on the information provided in Table 2-2.
Low Noise Path System Gain Algorithm) SW3 4800 MHz calibrator on A16
Reference
A15 Front End Controller
High Band Preamp Path System Gain
Algorithm
A11 Low Band Switch 4800 MHz calibrator on A16
Reference
A9 and A10 Input attenuators
A15 Front End Controller
High Band Preselector Bypass Path System
Gain Algorithm
SW 1 and SW 2, coax
switches and cabling
A15 Front End Controller
4800 MHz calibrator on A16
Reference
A9 and A10 Input attenuators
High Band Preselector Bypass Preamp Path
System Gain Algorithm
A11 Low Band Switch
Preselector Bypass
Switch(s)
Burst Carrier Trigger Curve Fit Alignment
Algorithm
A2 Analog IF
DIF 25 Pulse Stretcher Alignment Algorithm A3 Digital IF
DIF 40 Pulse Stretcher Alignment Algorithm A3 Digital IF
WBDIF Pulse Stretcher Alignment Algorithm A22 or A23 Wideband
Digital IF
Notes:
NarrowBandIF is the standard 10 MHz IF or the 25 MHz path (B25)
MediumBandIF is the 40 MHz IF path (B40)
WideBandIF is the 255 MHz IF path (B2X)
DualWideBandIF is the 510 MHz IF path (B5X)
Table 2-2 Initial Alignments
Alignment Description Most Probable Hardware
Failure
Related Hardware