Service Guide N5242-90001 7-65
PNA Series Microwave Network Analyzers Repair and Replacement Procedures
N5242A Post-Repair Procedures
A14 system motherboard No adjustment needed
Front Panel Keypad and RPG Test
and A3 Display Test in Chapter 4
The Operator’s Check
A15 midplane board No adjustment needed None needed
A16 power supply assembly No adjustment needed None needed
A17 CPU board No adjustment needed The Operator’s Check
A18 GPIB board No adjustment needed None needed
A19 test set motherboard
Reinstall the serial number. (Refer to
“Installing or Changing a Serial
Number” in Chapter 8.)
Re-enable all hardware options.
(Refer to “Option Entitlement
Certificate” in Chapter 8.)
The Operator’s Check
A20 IF multiplexer board No adjustment needed The Operator’s Check
A21 HMA26.5
Source Adjustment
Receiver Adjustment
Frequency Accuracy Test
Source Power Accuracy Test
Source Maximum Power Output Test
Source Power Linearity Test
The Operator’s Check
A22 splitter
Source Adjustment
Receiver Adjustment
Frequency Accuracy Test
Source Power Accuracy Test
Source Maximum Power Output Test
Source Power Linearity Test
The Operator’s Check
A23 and A24 mixer bricks Receiver Adjustment
Receiver Compression Test
Noise Floor Test
Calibration Coefficients Test
Dynamic Accuracy Test
A25–A28 bridges
Source Adjustment
Receiver Adjustment
Source Maximum Power Output Test
Calibration Coefficients Test
A29–A32 test port couplers
Source Adjustment
Receiver Adjustment
Source Maximum Power Output Test
Calibration Coefficients Test
A33 reference mixer switch No adjustment needed The Operator’s Check
A34–A37 source step
attenuators
Source Adjustment
Receiver Adjustment
Source Maximum Power Output Test
Calibration Coefficients Test
A38–A41 bias tees
Source Adjustment
Receiver Adjustment
Source Maximum Power Output Test
Calibration Coefficients Test
A42–A45 receiver step
attenuators
Source Adjustment
Receiver Adjustment
Source Maximum Power Output Test
Calibration Coefficients Test
Table 7-2 Related Service Procedures (Continued)
Replaced Assembly
Adjustments
and Other Procedures
Verification, Performance,
and Other Tests and Procedures
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