Service manual

Troubleshooting Your Computer: Dell Latitude CP
No. Continue to step 4.
4. Turn off the computer and any attached peripherals. Disconnect all peripherals from the
computer.
5. Make sure the AC adapter is firmly connected to the computer and to an AC power
source, or verify that a fully charged battery is properly seated in its compartment.
6. Turn on the computer. Is the display on?
Allow one minute for the computer to initialize its components.
Yes. Continue to step 7.
No. Go to step 9.
7. Press the <Fn> down-arrow or <Fn> up-arrow key combination to adjust the brightness.
Is the full display readable?
Yes. Continue to step 8.
No. Go to step 9.
8. Did an error message appear on the display, or did you see a flash code?
Yes. Refer to
Table 3-2 or Table 3-3 to find the message or flash code, respectively,
along with its explanation. If you can't find the message or mode, call Dell for technical
assistance. (See
Getting Help, for instructions.)
No. If you still have a display problem but the display is not completely blank, run the
Video test group in the Dell Diagnostics. (See Running the Dell Diagnostics, for
instructions.) Then call Dell for technical assistance. (See
Getting Help.)
9. Turn off your computer, and connect an external monitor to the computer.
Follow the procedure in the topic titled "Connecting an External Monitor" in the online
System User's Guide.
10. Turn on the computer and the monitor, and adjust the monitor's brightness controls. Is
the monitor readable?
Yes. The computer's display may be defective. Call Dell for technical assistance. (See
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