Calling HP Sales and Service OfficesSales and service offices are located around the world to provide complete support for your cable TV analyzer. To obtain servicing information or to order replacement parts, contact the nearest Hewlett-Packard Sales and Service office listed in Table 8-1. In any correspondence or telephone conversations, refer to the cable TV analyzer by its model number and full serial number. With this information, the HP representative can quickly determine whether your unit is still within its warranty period.
In general, a problem can be caused by a hardware failure, a software error, or a user error. Follow these general steps to determine the cause and to resolve the problem:
1.Perform the quick checks listed in “Check the Basics;” these checks may eliminate the problem altogether, or may give a clearer idea of its cause.
2.If the problem is a hardware problem, you have several options:
• Repair it yourself, contact your HP Sales and Service Office to obtain the most current test and maintenance information.
If it becomes necessary to return your analyzer to a Hewlett-Packard service
center, save any user-defined functions or measurement personalities to a memory card. It may be necessary for the service center to load diagnostic or measurement personalities into user memory which would over-write existing programs, or memory could be erased during repair. Hewlett-Packard cannot guarantee that the user memory will be preserved. Refer to “Saving and Recalling Data from the Memory Card” in Chapter 3 of this guide.
•Return the analyzer to Hewlett-Packard for repair; if the analyzer is still under warranty or is covered by an HP maintenance contract, it will be repaired under the terms of the warranty or plan.
If the analyzer is no longer under warranty or is not covered by an HP maintenance plan, Hewlett-Packard will notify you of the cost of the repair after examining the instrument. See “Calling HP Sales and Service Offices” and “How to Call Hewlett-Packard” for more information.