5Service
108 Keysight E3631A Service Guide
Operating Checklist
Before returning your power supply to Keysight Technologies for service or repair
check the following items:
Is the Power Supply Inoperative?
– Verify that the ac power cord is connected to the power supply.
– Verify that the front-panel power switch is depressed.
– Verify that the power-line fuse is installed:
– Use the 2.5 AT, 250 V fuse for 100 or 115 Vac operation.
– Use the 2 AT, 250 V fuse for 230 Vac operation.
– Verify the power-line voltage setting.
– See "To prepare the power supply for use" in Chapter 2.
Does the Power Supply Fail Self-Test?
– Verify that the correct power-line voltage is selected.
See "To prepare the power supply for use" in Chapter 2.
– Remove all load connections to the power supply.
Ensure that all terminal connections are removed while the self-test is
performed.
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