Acer 4000 Guía Del Usuario

24

English

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 on the icon and 
deselect the Mute 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. See "Hotkeys" on page 14 for more detail.

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 2.0 port on the computer. If it 
works, contact your dealer or an authorized service center as the internal 
keyboard cable may be loose.

The Bluetooth mouse does not respond.

Check the following:

Is Bluetooth enabled? If not, press the Bluetooth communication button on 
the front panel (see "Closed front view" on page 2) to enable Bluetooth.

Is the Bluetooth mouse fully charged? If not, use the USB charging cable to 
recharge your mouse. See "Recharging the Bluetooth mouse" on page 17 
for more information.

The infrared port does not work.

Check the following:

Make sure that the infrared ports of the two devices are facing each other 
(+/- 15 degrees) a maximum of 1 meter apart.

Make sure there is a clear path between the two infrared ports. Nothing 
should be blocking the ports.

Make sure you have the appropriate software running on both devices (for 
file transfers) or you have the appropriate drivers (for printing to an 
infrared printer).

During the POST, press <F2> to access the BIOS utility and verify that the 
infrared port is enabled.

Make sure both devices are IrDA-compliant.

The printer does not work.

Check the following: