Keysight N9020A - Page 65

65
Boot Up and Initialization Troubleshooting
Potential Problems During Boot Process
AIF LC Wide Prefilter Passband Tuning
Algorithm
Adjusts the LC prefilter centering with the prefilter BW
set to about 1.12 MHz.
Uses 322.5 MHz Comb Calibrator on the A-IF.
A2 Analog IF
AIF LC Wide Prefilter Passband Fine Tuning
Algorithm
A2 Analog IF
AIF LC Narrow Prefilter Passband Tuning
Algorithm
Adjusts the LC prefilter centering with the prefilter BW
set to about 413 kHz.
Uses 322.5 MHz Comb Calibrator on the A-IF.
A2 Analog IF
AIF LC Narrow Prefilter Passband Fine Tuning
Algorithm
A2 Analog IF
AIF Xtal Wide Prefilter Passband Tuning
Algorithm
Adjusts Centering, symmetry and dip of the crystal
prefilter BW set to about 80 kHz
Uses 322.5 MHz Comb Calibrator on the A-IF
A2 Analog IF A3 Digital IF or
A16 Reference
AIF Xtal Narrow Prefilter Passband Tuning
Algorithm
Adjusts Centering, symmetry and dip of the crystal
prefilter BW set to about 13 kHz
Uses 322.5 MHz Comb Calibrator on the A-IF
A2 Analog IF
AIF Variable Gain Algorithm
The Gain of the Analog IF System is measured and
compared with the ideal gain value. Several conditions
are tested, Dither on/ dither off, A-IF prefilter in and
bypassed, alias filter set wide and narrow.
Uses 322.5 MHz Comb Calibrator on the A-IF
A2 Analog IF
Table 2-2 Initial Alignments
Alignment Description Most Probable
Hard ware Failure
Related Hardware