HP ProBook 4720s Notebook-PC User Manual
Page 70
To connect an external device to the computer:
CAUTION:
To reduce the risk of damage to the equipment when connecting a powered device, be
sure that the device is turned off and the AC power cord is unplugged.
1.
Connect the device to the computer.
2.
If you are connecting a powered device, plug the device power cord into a grounded AC outlet.
3.
Turn on the device.
To disconnect an unpowered external device, turn off the device, and then disconnect it from the
computer. To disconnect a powered external device, turn off the device, disconnect it from the computer,
and then unplug the AC power cord.
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Chapter 6 External devices
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