Dell Chromebook 3100 Service Manual page 70

Display issue
Table 7. Display issue
Issue
Screen is Blank
Audio, screen, and camera issues
Table 8. Audio, screen, and camera issues (continued)
Issues
Audio issues
Screen issues
Camera issues
70 Troubleshooting
Display issue
Possible solutions
If the Chromebook's screen is blank, try the following
troubleshooting steps to resolve the issue, checking to see
if the screen turns on after each step:
1. Make sure that the Chromebook is on. If you are using
the battery, plug the Chromebook in and press the power
button.
2. Restart the Chromebook by holding the power button
down until the device turns off, then turn it back on again.
3. Reset or Recover the Chromebook.
Audio, screen, and camera issues
Possible solutions
If you hear static, or the volume from the speakers is low
when attempting to listen to audio:
1. Make sure that the device is not muted. Try adjusting the
volume.
2. Try rebooting the Chromebook.
3. Try playing audio from various sources, including YouTube
and audio files stored locally on the Chromebook.
If the speakers are not responding when attempting to listen
to audio:
1. Unplug the device from all cables (USB, headphones, and
displays).
2. Try playing audio from various sources, including YouTube
and audio files stored locally on the Chromebook.
3. Try rebooting the Chromebook.
4. If audio still does not respond, try to Reset or Recover the
Chomebook.
If the screen is not operating properly (images are too dark or
no image is appearing):
1. Try adjusting the brightness with the brightness keys at
the top of the keyboard.
2. In the status area in the bottom-right of the screen, check
the display and make sure there are no issues with a
mirrored or extended display.
3. Try rebooting the Chromebook
4. If the screen issues persist, try to Reset or Recover the
Chomebook.
If the camera is not operating properly (blurry images or poor
performance):
1. Check that the camera is not being blocked or covered by
a privacy screen or other obstruction.
2. Try using different apps that use the camera. Try a
Google+ Hangout or the onboard camera app
3. Try rebooting the Chromebook