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Troubleshooting 95
3
From the Windows desktop, click the
Start
button, point to
Programs
, point to
Accessories
,
and click
Notepad
.
4
Type some characters on the external keyboard and verify that they appear on the display.
If you cannot verify these steps, you may have a defective external keyboard.
TO VERIFY THAT THE PROBLEM IS WITH THE EXTERNAL KEYBOARD, CHECK THE INTEGRATED KEYBOARD—
1
Shut down the computer.
2
Disconnect the external keyboard.
3
Turn on the computer.
4
From the Windows desktop, click the
Start
button, point to
Programs
, point to
Accessories
,
and click
Notepad
.
5
Type some characters on the internal keyboard and verify that they appear on the display.
If the characters appear now but did not with the external keyboard, you may have a defective
external keyboard. Contact Dell (see "Obtaining Assistance" on page 159).
RUN THE KEYBOARD DIAGNOSTICS TESTS—
Run the PC-AT Compatible Keyboards tests in the Dell
Diagnostics (see "Dell Diagnostics" on page 83). If the tests indicate a defective external keyboard,
contact Dell (see "Obtaining Assistance" on page 159).
Unexpected characters
DISABLE THE NUMERIC KEYPAD—
Press <Num Lk> to disable the numeric keypad if numbers are
displayed instead of letters. Verify that the numbers lock light is not lit.
Lockups and Software Problems
Fill out the Diagnostics Checklist (see "Diagnostics Checklist" on page 163) as you complete these
checks.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the
Product Information Guide
.
The computer does not start up
ENSURE THAT THE AC ADAPTER IS FIRMLY CONNECTED TO THE COMPUTER AND TO THE
ELECTRICAL OUTLET.
The computer stops responding
NOTICE: You might lose data if you are unable to perform an operating system shutdown.
T
URN THE COMPUTER OFF—
If you are unable to get a response by pressing a key on your keyboard or
moving your mouse, press and hold the power button for at least 8 to 10 seconds until the
computer turns off. Then restart your computer.