Using the Ke yboard and Touch Pad 53External Keyboard Problems NOTE: When you attachan external keyboard, theintegrated keyboardremains fully functional.C H E C K T H E K E Y B O A R D C A B L E — Shut down the computer (see page 40).Disconnect the keyboard cable and check it for damage. Firmly reconnect the cable.If you are using a keyboard extension cable, disconnect it and connect the keyboarddirectly to the computer.C H E C K T H E EX T E R N A L K E Y B O A R D —1 Shut down the computer (see page 40), wait 1 minute, and turn it on again.2 Verify that the numbers, capitals, and scroll lock lights on the keyboard blinkduring the boot routine.3 From the Windows ® desktop, click the Start button, point to All Programs, pointto Accessories, and click Notepad.4 Type some characters on the external keyboard and verify that they appear on thedisplay.If you cannot verify these steps, you may have a defective external keyboard.T O V E R I F Y T H A T T H E P R O B L E M I S W I T H T H E EX T E R N A L K E Y B O A R D ,C H E C K T H E I N T E G R A T E D K E Y B O A R D —1 Shut down the computer (see page 40).2 Disconnect the external keyboard.3 Turn on the computer.4 From the Windows desktop, click the Start button, point to All Programs, pointto Accessories, and click Notepad.5 Type some characters on the external keyboard and verify that they appear on thedisplay.If the characters appear now but did not with the external keyboard, you may have adefective external keyboard. Contact Dell (see page 126).Unexpected CharactersD I S A B L E T H E N U M E R I C K E Y P A D — Press to disable the numerickeypad if numbers are displayed instead of letters. Verify that the numbers lock lightis not lit.
