Keysight Technologies Option 503 Service Manual page 77

Boot Up and Initialization Troubleshooting
Potential Problems During Boot Process
Table 2-3 Initial Alignments
Alignment Description
AIF 140 Variable Attenuator Algorithm
Ref power at atten 12 dB
(Option B1X)
DIF 40 Variable Attenuator Algorithm
Ref power at atten 21 dB
Narrow Band Step Cal Ad justment Alignment
Algorithm
Narrow Band Step Cal Alignment Algorithm
DIF 40 Step Cal Ad justment Alignment
Algorithm
DIF 40 Step Cal Alignment Algorithm
AIF 140 Step Cal Ad justment Alignment
Algorithm
(Option B1X)
AIF 140 Step Cal Alignment Algorithm
N9030A PXA Signal Analyzer Service Guide
Most Probable Related Hard ware
Hard ware Failure
A25 Wide band A-IF
A3 Digital IF
Alignment signal
originates on A3
D-IF, then goes
through A16
Reference through
the input
attenuators,
through A13 Front
End, through A2
Analog IF, and back
to A3 Digital IF. If
Option B1X present,
A25 WB A-IF
switches calibrator
signal to A16
Reference.
A16 Reference
A9/A10 Attenuators
Since this is wide
band alignment
done for 40 MHz
BW signal path, A2
Analog IF is not
included in the
signal path.
A25 Wide band A-IF
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