Keysight E3631A, Service Manual

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Calibration Procedures 3
Keysight E3631A Service Guide 53
Self-test
A power-on self-test occurs automatically when you turn on the power supply.
This limited test assures you that the power supply is operational.
The complete self-test is enabled by pressing the “Recall” key (actually any front
panel keys except the “Error” key) and the power-line switch simultaneously and
then continuing to press the “Recall” key for 5 seconds. The complete self-test
will be finished in 2 more seconds.
You can also perform a self-test from the remote interface (see chapter 3 in the
Keysight E3631A User's Guide).
– 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. If
repair is required, see chapter 5, Service for further details.
– If self-test passes, you have a high confidence that the power supply is
operational.
Performance verification tests
These tests can be used to verify the power supply's specifications following
repairs to specific circuits. The following sections explain all verification
procedures in detail. All of the performance test specifications are shown in each
test.