80 N9030B PXA 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 2-3.
High Band Preselector Bypass Preamp Path
System Gain Algorithm (Option MPB)
A11 Low Band
Switch
Preselector Bypass
Switch(s)
Burst Carrier Trigger Curve Fit Algorithm
Detects the level of the signal envelope before
filtering at the 22.5 MHz IF, and compares that
detected level against the trigger threshold DC
level.
A2 Analog IF
DIF 25 Pulse Stretcher Alignment Algorithm A3 Digital IF
DIF 40 Pulse Stretcher Alignment Algorithm
Adjusts time between trigger and clock signal.
A3 Digital IF
WBDIF Pulse Stretcher Alignment Algorithm A26 WBDIF
DC Offset Alignment Algorithm
(Option BBA)
A19 BBIQ Main
A18 BBIQ Interface
Table 2-3 Initial Alignments
Alignment Description Most Probable
Hard ware Failure
Related Hard ware
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