The complete self-test of the power supply is enabled by pressing the Recall key or any front panel keys
except the Error key and the power-line switch simultaneously . Then continue to press the Recall key
for 5 seconds. It will take another 2 seconds for the complete self-test to end.
You can also perform a complete self-test from the remote interface see SCPI Programming for details.
– If the self-test is successful, "PASS" is displayed on the front panel.
– If the self-test fails, "FAIL" is displayed and the ERROR annunciator turns on. Record the error code
and message and contact Keysight support if necessary.
– If the self-test is successful, this indicates a high chance that the power supply is operational.
To Replace the Power-Line Fuse
The power-line fuse is located within the power supply's fuse-holder assembly on the rear panel see
Getting Started > Options and Fuse Information for details. For 100 or 115 Vac operation, you must use
a 2.5 AT slow-blow fuse. For 230 Vac operation, you must use a 2 AT slow-blow fuse.
User Replaceable Parts
You can find the instrument support part list at Keysight's Test & Measurement Parts Catalog
http://www.keysight.com/find/parts.