Dell Dimension 4550 - Manual (Page 48)

48 Solving Problems
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Keyboard Problems
C HE C K Y O U R O P E R A T IN G S YS T E M D O C UM E NT A T I O N F O R A D DI T I O NA L
T R O UB L E S H O O T I NG IN FO R MA T I O N
C HE C K F O R IN T E R RU P T RE Q U ES T C O N F L I C T S — See page 70.
R E S T AR T T H E C O MP U T E R —
• If the mouse is functioning, shut down the computer (see page 34). After the
computer shuts down, press the power button to restart the computer.
• If the computer does not respond to a keystroke or the mouse, press the power
button for at least 8 to 10 seconds until the computer turns off. Press the
power button again to restart the computer.
C HE C K T H E K EY B O AR D C AB L E —
• Ensure that the keyboard cable is firmly connected to the computer.
• Shut down the computer (see page 34), reconnect the keyboard cable as
shown on the setup diagram for your computer, and then restart the computer.
• Check the cable connector for bent or broken pins and for damaged or frayed
cables. Straighten bent pins.
• Remove keyboard extension cables and connect the keyboard directly to the
computer.
T E S T THE KE YB O A R D — Connect a properly working keyboard to the
computer, and try using the keyboard. If the new keyboard works, the original
keyboard is faulty.
I F T H E K E YB O A RD I S W IR E LE S S , R E PL A CE T H E KE Y B OA R D
B A T T E R Y —
See the wireless keyboard documentation for more information.
C HE C K F O R IN T E R RU P T RE Q U ES T C O N F L I C T S — See page 70.