42 Keysight NFA Series Noise Figure Analyzers Service Guide
Overview
How to Return Your Instrument for Service
How to Return Your Instrument for Service
Service Order Number
If an instrument is being returned to Keysight for servicing, the phone numbers
are mentioned in Table 1-4, “Contacting Keysight,” on page 39. In order for
Keysight to expedite the repair please be as specific as possible about the
nature of the failure.
Helpful failure descriptions:
— Signal level measures 10 dB too low at 1 GHz
— L.O. Unlock error message appears on screen in spans < 10 MHz
— Analyzer will not complete boot up sequence to signal analyzer mode
Failure descriptions that will most likely increase repair time:
—Analyzer broken
— Analyzer will not make accurate measurements
—Signal drifts
If you have recorded any error messages that appeared on the analyzer display,
or have completed a Functional Test or Performance Verification Test, or have
any other specific data on the performance of the instrument, please send a
copy of this information with the instrument.
Original Packaging
Before shipping, pack the unit in the original factory packaging materials if
they are available. If the original materials were not retained, see “Other
Packaging” on page 43.
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