Table of Contents
Advertisement
Checking Module Operation
The operation of the HP 70907A/B in an HP 70000 Modular Spectrum Analyzer system is
checked by examining the front-panel LEDs and by checking for error messages after the
module's power-on self-test has run. Recheck installation if there seems to be a problem with
module operation, but neither the front-panel LEDs nor error messages indicate a problem.
Examining the Front-Panel LEDs
The power-on self-test runs automatically when power is rst applied to the module. The
front-panel LEDs
ash on and then o during the
self-test. Immediately after the self-test has run, the ACT LED should be
LED should be
. Refer to Chapter 5, \Troubleshooting," if the LEDs' status is di erent
o
than that listed above.
Checking for Error Messages
Perform this procedure to display any error messages present for the system.
1. Press
, then
DISPLAY
4
5
2. The error messages for the system will be visible on the display screen. Note any error
messages that have
of the error code are the module's HP-MSIB address (5, 18), and will be di erent if the
factory-preset address has been changed.
3. If any error messages are displayed, refer to Chapter 5 for troubleshooting information. If
no error messages are present, the HP 70907A/B is operating properly.
.
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
REPORT ERRORS
or
as part of the error code. The last two numbers
70907A
70907B
and the ERR
on
Installation
2-7
Advertisement
Table of Contents
