Getting Started 2 
U2722A/U2723A Service Guide 15
Obtaining Repair Service (Worldwide)
To obtain service for your instrument (in-warranty, under 
service contract, or post-warranty), contact your nearest 
Keysight Service Center. They will arrange to have your unit 
repaired or replaced, and are able to provide warranty or 
repair cost information where applicable. 
To obtain warranty, service, or technical support information 
you can contact Keysight at one of the following telephone 
numbers.
In the United States: 800 829 4444
In Europe: 31 20 547 2111
In Japan: (81) 426 56 7832
You can also use our Web link for the information on 
contacting Keysight worldwide:
www.keysight.com/find/assist
Or contact your Keysight representative.
Before shipping your instrument, ensure that you acquire 
shipping instructions, including the components to be 
shipped, from the Keysight Service Center. Keysight 
recommends that you retain the original shipping carton for 
use in such shipments.