Dell Latitude D400 User Manual page 123

FILE LOCATION: S:\SYSTEMS\Pebble\UG\A00\English\problems.fm
C
H E C K T H E K E Y B O A R D C A B L E
the keyboard cable and check it for damage, and firmly reconnect the cable.
If you are using a keyboard extension cable, disconnect it and connect the
keyboard directly to the computer.
C
H E C K T H E E X T E R N A L K E Y B O A R D
Shut down the computer, wait 1 minute, and turn it on again.
1
Verify that the numbers, capitals, and scroll lock lights on the keyboard blink
2
during the boot routine.
From the Windows desktop, click the Start button, point to Programs, point
3
to Accessories, and click Notepad.
Type some characters on the external keyboard and verify that they appear on
4
the display.
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 E X 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
Shut down the computer.
1
Disconnect the external keyboard.
2
Turn on the computer.
3
From the Windows desktop, click the Start button, point to Programs, point
4
to Accessories, and click Notepad.
Type some characters on the external keyboard and verify that they appear on
5
the display.
If the characters appear now but did not with the external keyboard, you may
have a defective external keyboard.
R
U 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
Keyboards tests in the Dell
keyboard, contact Dell.
D E L L C O N F I D E N T I A L – P R E L I M I N A R Y 1 / 2 9 / 0 3 – F O R P R O O F O N LY
— Shut down the computer. Disconnect
—
—
— Run the PC-AT Compatible
Diagnostics. If the tests indicate a defective external
NOTE: Use the
integrated keyboard when
working in MS-DOS
mode or when running the
Dell Diagnostics
system setup
When you attach an
external keyboard, the
integrated keyboard
remains fully functional.
,
So l vi n g Pro b l em s
®
or the
program.
121