User and Programming Manual - Rev H
California Instruments
May 2000
P Series
34
7.3 Advanced Troubleshooting
WARNING: DO NOT CONNECT 400-480V TO THE UNIT, THE RESULT WILL BE A
SEVERELY DAMAGED UNIT.
CAUTION: VOLTAGES UP TO 480 VAC AND 650 VDC ARE PRESENT IN CERTAIN
SECTIONS OF THIS POWER SOURCE.
WARNING: THIS EQUIPMENT GENERATES POTENTIALLY LETHAL VOLTAGES.
DEATH ON CONTACT MAY RESULT IF PERSONNEL FAIL TO OBSERVE SAFETY
PRECAUTIONS. DO NOT TOUCH ELECTRONIC CIRCUITS WHEN POWER IS APPLIED
7.3.1 Switch Off Unit
Switch off the unit with the power on/off switch on the rear panel as well as removing the input
power from the unit.
WARNING:
Wait 10 minutes for all internal capacitors to discharge.
7.3.2 Removing Top Cover
Remove the screws securing the top cover and remove the top cover.
7.3.3 Initial Inspection
Perform a visual inspection of the unit and ensure all the connectors are properly mated and
there are no loose or broken wires.