7-56 Service Guide N5227-90001
Repair and Replacement Procedures PNA Series Microwave Network Analyzers
Post-Repair Procedures N5227A
A25 HMA26.5
EE Default Adjustment: LO Drive only
EE Default Adjustment: LO Drive Noise
Figure only (Option 029 equipped PNA)
IF Gain Adjustment
Receiver Characterization
Receiver Adjustment
Frequency Accuracy Test
Source Power Accuracy Test
Source Maximum Power Output Test
Source Power Linearity Test
The Operator’s Check
A26 splitter
IF Gain Adjustment
Receiver Characterization
Receiver Adjustment
Frequency Accuracy Test
Source Power Accuracy Test
Source Maximum Power Output Test
Source Power Linearity Test
The Operator’s Check
A27 and A28 mixer bricks
IF Gain Adjustment
Receiver Characterization
Receiver Adjustment
Receiver Compression Test
Noise Floor Test
Calibration Coefficients Test
Dynamic Accuracy Test
A60–A63 70 GHz doublers
Source Adjustment
Receiver Adjustment
Frequency Accuracy Test
Source Power Accuracy Test
Source Maximum Power Output Test
Source Power Linearity Test
The Operator’s Check
A29–A32 receiver couplers
Source Adjustment
Receiver Adjustment
Source Maximum Power Output Test
Calibration Coefficients Test
A33–A36 test port couplers
Source Adjustment
Receiver Adjustment
Source Maximum Power Output Test
Calibration Coefficients Test
A37 reference mixer switch No adjustment needed
The Operator’s Check
A38–A41 source step
attenuators
Source Adjustment
Receiver Adjustment
Source Maximum Power Output Test
Calibration Coefficients Test
A42–A45 bias tees
Source Adjustment
Receiver Adjustment
Source Maximum Power Output Test
Calibration Coefficients Test
A46–A49 receiver step
attenuators
Receiver Adjustment Source Maximum Power Output Test
Calibration Coefficients Test
A55 solid state drive
Restore previously saved receiver
cal
ibration data
a
(or perform Receiver
Adjustment)
Read and write to the drive
B1 fan No adjustment needed Check for fan operation
Battery No adjustment needed None
a. If a backup copy of receiver calibration data from the faulty disk drive is available, it can be copied to the
new disk drive. If not, new data must be generated by performing the “Receiver Adjustment.”
Table 7-2 Related Service Procedures (Continued)
Replaced Assembly
Adjustments
and Other Procedures
Verification, Performance,
and Other Tests and Procedures
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