Installation guide

Troubleshooting
Troubleshooting Performance Test Problems
1-97
Internal Digital Modulation Quality
(Option 402 Only)
•Perform:
— All I/Q calibrations
— I/Q Modulation Quality
(Option 402 Only)
• If still failing, troubleshoot the failure.
• If it passes, troubleshoot the following assemblies:
— A10 I/Q Multiplexer
— A13 Output (fails only ≤ 4 GHz)
— A14 Extended Frequency Output (Option 506)
(fails only > 4 GHz)
Custom I/Q RF Modulation Quality
(Option 402 Only)
•Perform:
— All I/Q calibrations
— I/Q Modulation Quality
(Option 402 Only)
• If still failing, troubleshoot the failure.
• If it passes, troubleshoot the following assemblies:
— A10 I/Q Multiplexer
— A13 Output (fails only ≤ 4 GHz)
— A14 Extended Frequency Output (Option 506)
(fails only > 4 GHz)
I/Q Modulation Quality
(Option 402 Only)
•Perform:
— All I/Q calibrations
• If still failing, troubleshoot the following assemblies:
— A7 Baseband Generator (Option 001 or Option 002)
— A10 I/Q Multiplexer
Table 1-40 Troubleshooting Performance Test Problems
Performance test that is failing... Action to perform...