DELL PP05XB Manual De Usuario
100
Troubleshooting
Keyboard Problems
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the Product
Information Guide.
NOTE:
Use the integrated keyboard when running the Dell Diagnostics or the
system setup program. When you
attach an external keyboard, the integrated keyboard remains fully functional.
External Keyboard Problems
NOTE:
When you attach an external keyboard, the integrated keyboard remains fully functional.
C
HECK
THE
KEYBOARD
CABLE
—
Shut down the computer. Disconnect the keyboard cable and check it for
damage, and firmly reconnect the cable.
If you are using a keyboard extension cable, disconnect it and connect the keyboard directly to the
computer.
computer.
C
HECK
THE
EXTERNAL
KEYBOARD
—
1 Shut down the computer, wait 1 minute, and turn it on again.
2 Verify that the numbers, capitals, and scroll lock lights on the keyboard blink during the boot routine.
3 From the Windows desktop, click the Start button, point to Programs, point to Accessories, and click
2 Verify that the numbers, capitals, and scroll lock lights on the keyboard blink during the boot routine.
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.
T
O
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
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 "Contacting Dell" on page 155.
keyboard. Contact Dell. See "Contacting Dell" on page 155.
R
UN
THE
KEYBOARD
DIAGNOSTICS
TESTS
—
Run the PC-AT Compatible Keyboards tests in the Dell
Diagnostics. See "Dell Diagnostics" on page 89. If the tests indicate a defective external keyboard,
contact Dell. See "Contacting Dell" on page 155.
contact Dell. See "Contacting Dell" on page 155.
Unexpected Characters
D
ISABLE
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.