Dell Inspiron 510m - Manual (Page 48)

48
Using the Keyboard and Touch Pad
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External Keyboard Problems
NOTE:
When you attach an external keyboard, the integrated keyboard remains fully functional.
Unexpected Characters
C HECK THE KEYBOARD CABLE — Shut down the computer (see page 32).
Disconnect the keyboard cable and check it for damage. For PS/2 cables, check
the cable connector for bent or broken pins. 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 Turn off 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 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 Turn off 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 external 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 page 112).
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.
D7898bk2.book Page 48 Friday, April 29, 2005 9:39 AM