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. |
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Wireless device error. | 1. | Check software, if available, for |
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| device battery status. |
| 2. | Replace device batteries. |
| 3. | Reset receiver and keyboard. |
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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 |
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| Num Lock key can be disabled |
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| (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. | |
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Mouse may need | Remove the roller ball cover on the | |
cleaning. | mouse and clean it. | |
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Mouse needs repairs. | Replace the mouse. | |
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Wireless device error. | 1. | Check software, if available, for |
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| device battery status. |
| 2. | Replace device batteries. |
| 3. | Reset receiver and mouse. |
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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. |
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Service Reference Guide, dc7600 |