90 Solving ProblemsCH 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 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 the Start button, point to Programs→Accessories, and then click 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 the Start button, point to Programs→Accessories, and click 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 139.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 77). Ifthe tests indicate a defective external keyboard, contact Dell. See "ContactingDell" on page 139.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 numbers locklight is not lit.
