Total Power Failure When Using The Ac Adapter; Total Power Failure When Using A Battery - Dell Latitude CP Reference And Troubleshooting Manual

by a battery, see "Total Power Failure When Using
the Battery" found later in this section.
6. Call Dell for technical assistance.
See Chapter 5, "Getting Help," for instructions.
Total Power Failure When Using the AC
Adapter
If no signs of power are present in the computer when
using the AC adapter, make a copy of the Diagnostics
Checklist found in Chapter 5, "Getting Help," and fill it
out as you complete the following procedure.
1. Turn off the computer and peripherals. Discon-
nect the peripherals from AC power. If you are
using a surge protector, remove it. Remove any
installed batteries.
2. Make sure the AC adapter is connected to the
computer, and verify that the power cable is
firmly attached to the AC adapter and to the
AC power source.
See "Checking Connections" found earlier in this
chapter.
3. Turn on the computer. Does the green power indi-
cator light up?
Allow one minute for the computer to initialize its
components before checking for signs of power.
Yes. The problem is resolved.
No. Continue to step 4.
4. Turn off the computer, and disconnect the
AC adapter from its power source.
5. Connect another electrical device, such as a lamp,
to the power source from which you disconnected
the AC adapter.
6. Turn on the electrical device. Does the device
function properly?
If no other electrical device is available, continue to
step 7.
Yes. Power is available at the power source. See "No
Power to a Part of the Computer" found later in this
section.
No. Continue to step 7.
7. Connect the AC adapter to a different AC power
source, and turn on the computer. Does the green
power indicator light up?
Allow one minute for the computer to initialize its
components before checking for signs of power.
Yes. The problem is resolved.
No. Continue to step 8.
8. Call Dell for technical assistance.
See Chapter 5, "Getting Help," for instructions.

Total Power Failure When Using a Battery

If an AC adapter is not connected to your computer, the
computer's power source is a battery. If the battery indi-
cator flashes amber or is a steady amber, the battery
needs to be charged. If the battery is flashing green and
amber, the battery may be defective. To troubleshoot this
problem, make a copy of the Diagnostics Checklist found
in Chapter 5, "Getting Help," and fill it out as you com-
plete the following procedure.
1. Turn off the computer and peripherals, and dis-
connect them from AC power.
2. Reseat each installed battery by removing it and
then replacing it.
3. Turn on the computer. Does the green power indi-
cator light up?
Allow one minute for the computer to initialize its
components before checking for signs of power.
Yes. Continue to step 4.
No. Use the AC adapter to connect your computer
to AC power. If the computer operates normally
when using AC power, go to step 7. If the computer
does not boot when using the AC adapter, see the
previous subsection, "Total Power Failure When
Using the AC Adapter."
4. Does the battery indicator flash amber or show a
a steady amber light?
Yes. The battery needs to be charged. Go step 5.
No. Go to step 7.
5. Connect the computer to AC power, and fully
charge the battery.
For instructions, see the topic titled "Charging the
Battery" in the online System User's Guide.
Troubleshooting Your Computer 3-19