Must I Return my 89441A Vector Signal Analyzer (VSA) for Repair if it Displays an "RF LO Unlock" Error?
Frequently Asked Questions (FAQs)
Summary
Must I return my 89441A Vector Signal Analyzer (VSA) for repair if it displays an "RF LO Unlock" error?Question
Must I Return my 89441A Vector Signal Analyzer (VSA) for Repair if it Displays an "RF LO Unlock" Error?
Answer
If an "LO Unlock" type of error message occurs and persists, a failure has occurred in the RF section of the VSA. The RF section model number is 89431A for the 89441A VSA. There is nothing further that can be done from the front panel. The RF section should be returned to an Keysight Service Center for repair, but the IF section (89410A) is not required.