Self Test Procedures - Agilent Technologies 34980A Service Manual

1
Obtaining Service

Self Test Procedures

Power–On Self–Test
Each time the instrument is powered on, a subset of self–tests are performed. These tests
check that the minimum set of logic and output hardware are functioning properly.
Complete Self–Test
To perform a complete self–test send the
This command performs a complete self-test of the instrument and all installed plug-in
modules and returns a pass/fail indication. The self-test runs a series of tests and,
depending upon the modules installed, may take up to 2 minutes to complete (be sure to
set an appropriate interface time out). If all tests pass, you can have a high confidence
that the instrument and all installed plug-in modules are operational.
If the self–test is successful, SELF–TEST PASSED is displayed on the front panel.
If the self–test fails, SELF–TEST FAILED is displayed and an error number is shown.
Self–test error numbers and their meaning are shown in the table on
NOT E
• On the 34945A Microwave Switch/Attenuator Driver, this command performs a
• If you have a 34951A Isolated DAC Module installed, the self-test 
If one or more tests fail, return the instrument to Agilent for service.
Self Test Error Numbers
On the remote interface, a self–test failure will generate SCPI error –330 and a
supplemental message indicating one of the test numbers shown in the table on
Calibration Errors
The table on
8
The self-test will abort if any signals are connected to ABus1 via the
rear-panel Analog Bus connector (pins 4, 5, and 9). Be sure to
disconnect any signals from ABus1 prior to running the self-test.
self-test of the 34945A and all connected 34945EXT remote modules.
will require an additional 15 seconds to complete per DAC module 
(a memory test is performed).
page 88 shows failures that may occur during a calibration.
command.
*TST?
page 87.
page 87.
34980A Service Guide