Troubleshooting Without Diagnostics

Solving Keyboard and Mouse Problems (Continued)

Problem

Cause

Solution

Keyboard commands and typing are not recognized by the computer.

(continued)

Keyboard needs

Replace the keyboard.

repairs.

 

 

 

 

 

Wireless device error.

1.

Check software, if available, for

 

 

device battery status.

 

2.

Replace device batteries.

 

3.

Reset receiver and keyboard.

 

 

Computer is in

Press the power button to resume

standby mode.

from standby mode.

ÄCAUTION: When attempting to resume from standby mode, do not hold down the power button for more than four seconds. Otherwise, the computer will shut down and any unsaved data will be lost.

Cursor will not move using

The Num Lock key

Press the Num Lock key. The

the arrow keys on the

may be on.

Num Lock light should not be on if

keypad.

 

you want to use the arrow keys. The

 

 

Num Lock key can be disabled

 

 

(or enabled) in Computer Setup.

Mouse does not respond to movement or is too slow.

Mouse connector is not properly plugged into the back of the computer.

1.Shut down the computer using the keyboard.

2.Plug the mouse connector into the back of the computer (or the keyboard) and restart the computer.

Program in use has

Shut down the computer using the

stopped responding

keyboard and then restart the

to commands.

computer.

 

 

Mouse may need

Remove the roller ball cover on the

cleaning.

mouse and clean it.

 

 

Mouse needs repairs.

Replace the mouse.

 

 

 

Wireless device error.

1.

Check software, if available, for

 

 

device battery status.

 

2.

Replace device batteries.

 

3.

Reset receiver and mouse.

 

 

Computer is in

Press the power button to resume

standby mode.

from standby mode.

ÄCAUTION: When attempting to resume from standby mode, do not hold down the power button for more than four seconds. Otherwise, the computer will shut down and you will lose any unsaved data.

Mouse will only move

Mouse roller ball is

Remove roller ball cover from the

vertically or horizontally, or

dirty.

bottom of the mouse and clean it.

movement is jerky.

 

 

 

 

 

Service Reference Guide, dc7600

390742-002

D–17