Dell Precision M65, User Manual

Page: 73 / 160

Troubleshooting
73
FILE LOCATION: C:\Documents and Settings\reggie_davis\Desktop\Projects-07\BEN\Source\trouble.fm
D E L L C O N F ID E N T IA L – P R E L IM I N A RY 1 / 2 5/ 0 7 – F O R PR O O F O N LY
NOTE:
Use the integrated keyboard when running the Dell Diagnostics or the system setup program . When you
attach an external keyboard, the integrated keyboard remains fully functional.
External Keyboard problems
NOTE:
When you attach an external keyboard, the integrated keyboard remains fully functional.
C
H E C K T H E K E YB O A R D C A B L E
— Shut down the computer. Disconnect 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 ER N A L KE Y BOA RD
—
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 keyboard blink 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 appear on the display.
If you cannot verify these steps, you may have a defective external keyboard.
T
O V E RI F Y T H A T T H E P R O B L E M I S WIT H T H E E X T E RN A L KE Y BOA RD
,
C H E CK T H E I N T E G RA T E D K E YBO A RD
—
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 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 "Contacting Dell" on page 128).
R
U N TH E KE Y BOA RD D I A G N O S TI CS T E S T S
— Run the PC-AT Compatible Keyboards tests in the Dell Diagnostics
(see "Dell Diagnostics" on page 63). If the tests indicate a defective external keyboard, contact Dell (see "Contacting
Dell" on page 128
).
Unexpected characters
D
I SA B L E T H E N U ME R I C K E YP A D
— Press <Num Lk> to disable the numeric keypad if numbers are displayed
instead of letters. Verify that the numbers lock light is not lit.
Lockups and Software Problems
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the
Product
Information Guide .