Introduction
Types of Service Available
If your instrument fails during the warranty period, Keysight Technologies will repair or replace it under
the terms of your warranty. After your warranty expires, Keysight offers repair services at competitive
prices.
Many Keysight products have optional service contracts that extend coverage after the standard
warranty expires.
Obtaining Repair Service (Worldwide)
To obtain service for your instrument, contact your nearest Keysight Technologies Service Center.
They will arrange to have your unit repaired or replaced, and can provide warranty or repair–cost
information where applicable. Ask the Keysight Technologies Service Center for shipping instructions,
including what components to ship. Keysight recommends that you retain the original shipping carton
for return shipments.
Before Returning the Unit
Before returning the unit, make sure the failure is in the instrument rather than any external
connections. Also make sure that the instrument was accurately calibrated within the last year (see
Calibration Interval).
If the unit is inoperative, verify that:
l the AC power cord is securely connected to the instrument
l the AC power cord is plugged into a live outlet
l the front-panel Power On/Standby switch has been pushed
If self-test failed, verify that:
Ensure that all connections (front and rear) are removed when self-test is performed. During self-test,
errors may be induced by signals present on external wiring, such as long test leads that can act as
antennae.
Repackaging for Shipment
To ship the unit to Keysight for service or repair:
l Attach a tag to the unit identifying the owner and indicating the required service or repair. Include
the model number and full serial number.
l Place the unit in its original container with appropriate packaging material.
l Secure the container with strong tape or metal bands.
8 Service and Maintenance
342 Keysight N6900/N7900 Series Operating and Service Guide
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