Acer 1620 Series manual My external microphone does not work, Keyboard does not respond

English

62 Troubleshooting

control 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, click on the volume control icon on the taskbar, and then use the slider control to increase the volume level.

•If headphones are connected to the headphone jack on the computer, your computer's built-in speakers will be turned off.

My external microphone does not work.

Check the following:

•Make sure that the external microphone is properly plugged into the microphone-in jack on the computer.

•Make sure that the volume is not muted or set too low.

I can't eject the optical drive tray with my computer turned off.

The computer needs to be turned on for the optical drive eject button to function. If you need to eject the optical drive tray when the computer is turned off, push a straightened paper clip into the optical drive emergency eject hole. See “Emergency ejection of the optical drive tray” on page 23 for more information.

The keyboard does not respond.

Try attaching an external USB keyboard to one of your computer's USB ports. If it works, the internal keyboard might have become disconnected. Contact your dealer or an authorized service center.

The optical drive cannot read a disc.

Check the following:

•Make sure that the disc is supported by the drive. If your computer has a CD-ROM drive, it can read CDs but cannot read DVDs. If your computer has a DVD drive, it can read both CDs and DVDs.

•When placing a disc in the drive tray, make sure that it is secure on the spindle of the drive tray.

•Make sure that the disc is free from scratches or smudges. If the disc is dirty, clean it using a disc cleaning kit.

•If the disc is OK, the drive head might be dirty. Clean it using a drive head cleaning kit.