124 TroubleshootingCH E C K T H E E X T E R N A L K E Y B O A R D —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 keyboardblink 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 appearon the display.If you cannot verify these steps, you may have a defective externalkeyboard.TO 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 E X T E R N A L K E Y B O A R D , C H E C K T H EI N T E G R A T E D K E Y B O A R D —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 appearon the display.If the characters appear now, but did not with the external keyboard, youmay have a defective external keyboard. Contact Dell (see "ContactingDell" on page 195).RU N T H E K E Y B O A R D D I A G N O S T I C S T E S T S — Run the PC-AT CompatibleKeyboards tests in the Dell Diagnostics (see "Dell Diagnostics" on page 105).If the tests indicate a defective external keyboard, contact Dell (see"Contacting Dell" on page 195).Unexpected charactersDI 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 numberslock light is not lit.
