HP 16500B - Manual (Page 66)

To check the power supply LEDs
Refer to chapter 6, "Replacing Assemblies," for instructions to remove or replace covers and
assemblies.
W A R N I N G
Hazard voltages exist on the power supply, the CRT, and the CRT driver board. This
procedure is to be performed by service-trained personnel aware of the hazards involved,
such as fire and electrical shock.
1 Turn off the instrument, then remove the top cover.
2 Apply power to the instrument.
3 Check the power supply LEDs.
4 Note problems with the power supply, then return to the power supply flowchart.
Troubleshooting
To check the power supply LEDs
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