Acer Aspire E1-570 User Manual - Page 82

Mute all, to adjust the volume.

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• The brightness level might be too low. Press + < > (increase) to adjust the brightness level. • The display device might be set to an external monitor. Press the display toggle hotkey + to toggle the display back to the computer. • If the Sleep indicator is lit, the computer is in Sleep mode. Press and release the power button to resume. No audio is heard from the computer Check the following: • The volume may be muted. In Windows, look at the volume control (speaker) icon on the taskbar. If it is crossed-out, click the icon and deselect the Mute all option. • The volume level may be too low. In Windows, look at the volume control icon on the taskbar. You can also use the volume control buttons to adjust the volume. • If headphones, earphones or external speakers are connected to the line-out port on the computer, the internal speakers automatically turn off. The keyboard does not respond Try attaching an external keyboard to a USB port on the computer. If it works, contact your dealer or an authorized service center as the internal keyboard cable may be loose. 82 - Frequently asked questions

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82 - Frequently asked questions
•
The brightness level might be too low. Press <
Fn
> + <
> (increase) to
adjust the brightness level.
•
The display device might be set to an external monitor. Press the
display toggle hotkey <
Fn
> + <
F5
> to toggle the display back to the
computer.
•
If the Sleep indicator is lit, the computer is in Sleep mode. Press and
release the power button to resume.
No audio is heard from the computer
Check the following:
•
The volume may be muted. In Windows, look at the volume control
(speaker) icon on the taskbar. If it is crossed-out, click the icon and
deselect the
Mute all
option.
•
The volume level may be too low. In Windows, look at the volume
control icon on the taskbar. You can also use the volume control buttons
to adjust the volume.
•
If headphones, earphones or external speakers are connected to the
line-out port on the computer, the internal speakers automatically turn
off.
The keyboard does not respond
Try attaching an external keyboard to a USB port on the
computer. If it
works, contact your dealer or an authorized service center as the internal
keyboard cable may be loose.