Dell Latitude L400 User Manual page 2

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AC Adapter: Dell™ Latitude™ L400 User's Guide

Using the AC Adapter

Connecting the AC Adapter

Turning On the Computer

Using the AC Adapter

The AC adapter converts AC power from an electrical outlet to the DC power used by the computer. The AC adapter kit includes the AC adapter

with its attached DC cable (which connects to the computer) as well as an AC power cable that connects the adapter to an electrical outlet.

You can connect the AC adapter with your computer either turned on or off.

The AC adapter works with electrical outlets worldwide. However, power connectors vary among countries. Before you use AC power in a foreign

country, you may need to obtain a new power cable designed for use in that country.

If the computer is docked to the Dell Latitude L400 Advanced Port Replicator (APR), it obtains power through the APR, which must be connected

to an electrical outlet through the AC adapter.

NOTE: If you are running your computer on AC power with a battery installed, the AC adapter charges the battery (if needed) and then

maintains the battery's charge.

NOTICE: The AC adapter should be in a ventilated area, such as on a desktop or on the floor, when used to power the computer or

charge the battery. Do not use the AC adapter in a poorly ventilated environment, such as inside a carrying case.

Connecting the AC Adapter

Connect the AC adapter's attached cable into the computer's AC adapter connector (see Figure

2. Plug the AC adapter power cable into the other end of the AC adapter.

3. Plug the AC adapter power cable into an electrical outlet.

Figure 1. Connecting the AC Adapter

Turning On the Computer

To turn on the computer, press the

NOTES: If your computer's operating system is "locked up"—that is, it does not respond to commands—press and hold down the power

button for at least five seconds to turn off the computer.

If the operating system locks up and does not respond to the power button, you can restart the computer using the reset switch on the

bottom of the computer. To do so, straighten a paper clip and press it into the

power

button.

1 AC adapter

2 AC adapter's attached cable

3 AC adapter connector

4 AC adapter power cable

reset switch access hole

1).

for about one second.