Student-Contributed Wiki

Student-Contributed Wiki

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Keyboard not registering keystrokes.

In a clean environment, use compressed air to blow out around the keys not working. If they are still not working, remove the key using a pry tool and clean the keys with rubbing alcohol. Be sure to not over saturate the keyboard with rubbing alcohol to prevent damage from liquid residue.

If cleaning the device did not resolve the issue, it is likely that you will need to replace the keyboard.

The screen has no picture when the laptop is on and active.

Try connecting an external display to the laptop to see if the computer is outputting an image. If the external display does not work, you may need to replace the video card or other related graphics hardware. If the external display does work, try changing the output settings of the device back to the laptop screen. If there is still no picture, your screen may have failed and would need replacement.

You can check connections to ensure everything is secure to the screen. If no faulty connections, you may need to replace the screen.

Computer won't turn on or does not respond to power button.

Plug in the device charger, an then try turning on. If it turns on but dies when you unplug the charger, you have a failed battery. The battery will need to be replaced, see Battery Replacement.

If device won't turn on when plugged in, you could have a faulty charging cable or power supply. These would need replacement.

Headphones produce no sound when plugged into the headphone jack.

Ensure the operation of headphones on a known working device and check your sound output settings to see if the computer registers the headphones being plugged in. If your headphone jack is dirty, the connection to the headphones will not work. Clean the headphone jack with compressed air or a toothpick, be careful not to damage the port, and try headphones.

If headphones work on another device and the port is clean, your headphone jack has failed. The jack will need to be replaced.

No sound is produced or sound is distorted.

Check your computer sound settings to ensure the device is attempting to play through speakers.

If you are hearing sound but it comes out distorted, the speaker may be blown. The speaker will need to be replaced.

If you hear nothing and the sound output destination is correct, there may be a loose connection on the speakers or the speaker has failed, and needs replacement.


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