Dell PP29L, Руководство пользователя

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Troubleshooting
89
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, then firmly reconnect the cable.
If you are using a keyboard extension cable, disconnect it and connect the
keyboard directly to the computer.
C
HECK THE EXTERNAL KEYBOARD
—
1
Shut down the computer, wait 1 minute, and then 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 Start
→
All Programs
→
Accessories
→
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 Start
→
All Programs
→
Accessories
→
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 132 ).
R UN THE KEYBOARD DIAGNOSTICS TESTS —
Run the PC-AT Compatible
Keyboards tests in the Dell Diagnostics (see "Dell Diagnostics" on page 75). If
the tests indicate a defective external keyboard, contact Dell (see "Contacting
Dell" on page 132).
book.book Page 89 Thursday, August 7, 2008 5:00 PM