Keysight Technologies N9030B, Service Manual

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Keysight Technologies
N9030B PXA Signal Analyzer
Service Guide
14 Service and Diagnostics Menus
Overview
The Service capabilities described below are accessed via the Service and
Diagnostic menus in the System menu. The Service capabilities are intended
for field service technicians. These technicians may be at an Keysight Service
Center or at a self-maintaining customer site.
There are two types of Service capabilities:
1. Diagnostics - These are available to any user and will assist in initial
troubleshooting of instrument malfunctions. Examples are the ability to
read the mechanical relay cycles.
2. Service Functions - These are for use by the factory or field repair
technicians, access is controlled. Examples are the ability to band lock the
analyzer and control the DAC which sets the 10 MHz Reference frequency.
Controlling Access
There are two levels of service and diagnostics capabilities:
1. “Regular access” to diagnostic capabilities that everyone is allowed
access. Care may be required to use a feature appropriately. This is the
“Diagnostic” type of Service capability defined above.
2. “Secure service access” to the Service menu. This prevents the casual user
from accessing and using these features. It is intended to provide this
access to Keysight Service Centers or any customer who purchases the
Service Guide. The “Service Functions” type of Service capability is
defined above.
To access secured service capabilities the technician is required to enter a
specific numeric Service Code that is controlled by the instrument software.
The Service Code is defined to be easily entered via the front panel; an external
keyboard or mouse will not be required. Once access has been gained, it
persists within the execution of the instrument application. If the user exits the
instrument application, they must re-enter the Service Code to gain access.