Technical data

LEDs located on the front panel. It is normal for both of the
front-panel status LED indicators to flash on, then off, during the module self-test. Self-test
occurs each time the instrument is turned on. The following pages list reasons why each
status LED might light.
Troubleshooting 5-1
8 System Operation Verification
Refer to the “Troubleshooting ” chapter in the installation and verification manual for the
system master for a description of these tools and programs.
Status Indicators
There are two status-indicator
8 System Diagnostics
70903A IF Section Service Manual for component-level information.
Troubleshooting Tools
The modular spectmm analyzer has the following troubleshooting tools.
Indicator lights
Error message reporting
Display tests
Analyzer tests
The following troubleshooting programs are available for use with HP 70000 Modular
Measurement Systems.
EP
5
Troubleshooting
Introduction
This chapter provides information on the front-panel status indicator lights and the error
messages produced by the HP 70903A IF Section. If problems are encountered, review
Chapter 2 of this manual to ensure the module addressing switches are properly set, cabling
is correct, and the module is securely seated in the mainframe. If problems persist, refer to
the installation and verification manual for the system master for troubleshooting tools or