Keysight N9040B Option 508 - Page 489

Keysight Technologies N9040B UXA Signal Analyzer Service Guide 489
Post-Repair Procedures
A15
Front End Control
Assembly
FPGA Synchronization
b
YTF Alignment (Press System, Alignments,
Advanced, Characterize Preselector)
Front End Controller Attenuator Adjustment
Frequency Response (All Tests)
Attenuator Slope
TOI Adjustment
Characterize Noise Floor (Press System,
Alignments, Advanced)
Residual Responses
Displayed Average Noise Level
Absolute Amplitude Accuracy
Frequency Response (All Tests)
Effective DANL
A16
Reference Assembly
FPGA Synchronization
b
10 MHz Frequency Reference Adjust
50 MHz Calibrator Amplitude Adjust
4800 MHz Calibrator Amplitude Adjust
Frequency Reference Accuracy
Residual Responses
Displayed Average Noise Level
Frequency Readout Accuracy
Count Accuracy
Absolute Amplitude Accuracy
Phase Noise (All Tests)
A20
YTO
Assure 1st LO unlocked or unleveled messages do not
appear.
Residual Responses
Phase Noise
Frequency Response (all tests)
A21
Wideband Analog IF
(Option B2X/B5X)
FPGA Synchronization
b
IF Frequency Response UWBIF
IF Phase Linearity
Noise Density
Spurious Responses
IF Frequency Response UWBIF
Also, go to Utilities and perform:
IF Frequency Response UWBIF Check (utility)
IF Phase Linearity Utility
A22
Wideband Digital IF
(Option B2X/B5X)
FPGA Synchronization
b
IF Frequency Response UWBIF
IF Phase Linearity
Noise Density
Spurious Responses
IF Frequency Response UWBIF
Also, go to Utilities and perform:
IF Frequency Response UWBIF Check (utility)
IF Phase Linearity Utility
A27
H1G Assembly
(Option H1G)
FPGA Synchronization
b
IF Frequency Response UWBIF
IF Frequency Response UWBIF Full Bypass Path
(if Option FBP is present)
IF Phase Linearity
IF Frequency Response UWBIF
Also, go to Utilities and perform:
IF Frequency Response UWBIF Check (utility)
IF Phase Linearity Utility
SW1 or SW2
Preselector bypass
switch
(Option MPB)
Frequency Response (all tests)
Reset Preselector Bypass cycles using software utility
Characterize Noise Floor (Press System,
Alignments, Advanced)
Frequency Response (all tests)
Effective DANL
Table 16-1 Post-Repair Testing Requirements (Continued)
Assembly
Adjustments to Perform
(in the order listed)
a
Performance Verifications to Perform After
Adjustments
a