4 Operating Guide48 Keysight N4985A Operating and Service ManualService and MaintenanceServiceThe N4985A does not have internal adjustments and should not be opened; itshould only be repaired by service-trained personnel. Should it become necessaryto return the N4985A for repair or service, contact your nearest Keysight Salesand Service Center.MaintenanceThe connectors of the N4985A, particularly the connector faces, must be keptclean. Keysight recommends that the connectors be periodically inspected andcleaned if necessary. For instructions on the connection and maintenance of yourconnectors, refer to the Connector Care Quick Reference Card (08510- 90360).
