Power Supply Troubleshooting - HP 8753D Option 011 Service Manual

Power Supply Troubleshooting

Use this procedure only if you have read Chapter 4, \Start Troubleshooting Here." Follow the
procedures in the order given, unless:
an error message appears on the display, refer to \Error Messages" near the end of this
chapter.
the fan is not working, refer to \Fan Troubleshooting" in this chapter.
The power supply group assemblies consist of the following:
8 post regulator
15 preregulator
ll assemblies, however, are related to the power supply group because power is supplied to
each assembly.
RAFT
3/21/106 15:12
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Power Supply Troubleshooting 5-1