External keyboard problems – Dell Vostro 500 (Mid 2009) User Manual
Page 89

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