Technical data

34410A/11A/L4411A Service Guide 107
Disassembly and Repair 4
To Replace the Current Input Fuse
The front and rear current input terminals are protected by a fuse. This
fuse is located on the rear panel (see page 9 or page 11). The supplied
fuse is a 3AT, 250V, slow–blow, 5x20mm fuse, Agilent part number
2110–0780. If you determine that the fuse is faulty, replace it with one of
the same size and rating
Self Test Procedures
Power–On Self–Tes t
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.
34410A/11A Complete Self–Te s t
To perform a complete self–test on the 34410A/11A:
Press
UTILITY MENU > SELF-TEST
The instrument will automatically perform the complete self–test
procedure. The self–test typically requires less than 10 seconds.
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 the next page. You can retrieve error messages from the queue as
follows:
Press
UTILITY MENU > SCPI ERRORS
You can scroll through the errors using the navigation keypad.
L4411A Complete Self–Tes t
To perform a complete self–test on the L4411A send the *TST command
from the remote interface.