
8712ET/ES and 8714ET/ES Assembly Replacement
RF Network Analyzers Post Repair Procedures
Service Guide 3-23
Post Repair Procedures
Table 3-1 describes the adjustments and performance tests that are required after one or
more of the analyzer's assemblies are replaced. For detailed information on the verification
tests, refer to Chapter 1; for detailed procedures on the adjustments, refer to Chapter 2.
Table 3-1 Post Repair Procedures
1. Functional tests include turning on the analyzer and performing a simple measurement.
2. If the entire receiver assembly or any of its components have been replaced, perform all of the recommended
adjustments and verifications.
Replaced Assembly Required Adjustments
Suggested Performance
Tests
A1 Front Panel None Functional tests only
1
A2 CPU Reload correction constant file from disk OR (if
CCs are not available) perform these tests
the order below:
Switched Gain Correction, adj #102
External Detector Gain Correction, adj. #103
Aux Input Correction, adj. #111
Source Power Correction, adj. #104
B Amplitude Correction, adj. #105
Reflection Correction, adj. #107
Transmission Correction, adj. #106
B* Amplitude Correction, adj. #110
R* Amplitude Correction, adj. #108
R* Frequency Response Correction, adj. #109
Functional tests only
1
OR:
Broadband Frequency Response (PT07)
Dynamic Accuracy (PT04)
Absolute Power Accuracy (PT06)
Directivity (PT08)
Power Flatness (PT05)
A3 Fractional-N/Reference Frequency Accuracy Adjustment
Trace Noise (PT10)
Frequency Accuracy (PT09)
Harmonics (PT09)
A4 Source Source Power Correction, adj. #104
B Amplitude Correction, adj. #105
Reflection Correction, adj. #107
Transmission Correction, adj. #106
Power Flatness (PT05)
Harmonics (PT09)
Trace Noise (PT10)
Crosstalk (PT11)
A5 Receiver Assembly
2
Switched Gain Correction, adj #102
External Detector Gain Correction, adj. #103
Aux Input Correction, adj. #111
Source Power Correction, adj. #104
B Amplitude Correction, adj. #105
Reflection Correction, adj. #107
Transmission Correction, adj. #106
B* Amplitude Correction, adj. #110
R* Amplitude Correction, adj. #108
R* Frequency Response Correction, adj. #109
Noise Floor (PT03)
Power Flatness (PT05)
Broadband Frequency Response (PT07)
Dynamic Accuracy (PT04)
Harmonics (PT09)
Absolute Power Accuracy (PT06)
Directivity (PT08)
Gain Compression (PT02)
Crosstalk (PT11)
Trace Noise (PT10)
A6 Power Supply None Power-on self tests
A7 Display Check display intensity
Functional tests only
1
A8 3.5" Internal Disk Drive None
Functional tests only
1
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