Acer 522 User Manual
5.42 Mb

LCD Failure

If the LCD fails, perform the following:

Figure 4-3.LCD Failure



Keyboard Failure

If the Keyboard fails, perform the following:

Figure 4-4.Keyboard Failure



Touchpad Failure

If the Touchpad fails, perform the following:

Figure 4-5.Touchpad Failure



Internal Speaker Failure

If internal Speakers fail, perform the following:

Figure 4-6.Internal Speaker Failure

Sound Problems

Perform the following:

1.Boot the computer.

2.Navigate to StartControl PanelSystem and MaintenanceSystemDevice Manager. Check the Device Manager to determine that:

The device is properly installed

There are no red Xs or yellow exclamation marksThere are no device conflicts

No hardware is listed under Other Devices

3.If updated recently, roll back the audio driver to the previous version.

4.Remove and reinstall the audio driver.

5.Make sure that all volume controls are set mid range: Click the volume icon on the taskbar



Drag the slider to 50. Confirm that the volume is not muted.

Click Mixer to verify that other audio applications are set to 50 and not muted.

6.Navigate to StartControl PanelHardware and SoundSound. Confirm that Speakers are selected as the default audio device (green check mark).


If Speakers does not show, right-clickon thePlayback tab and selectShow Disabled Devices (clear by default).

7.Select Speakers and click Configure to startSpeaker Setup. Follow theon-screenprompts to configure the speakers.

8.Remove any recently installed hardware or software.

9.Restore system and file settings from a known good date using System Restore.

10.If the issue is remains, repeat step 9, selecting an earlier time and date.

11.Reinstall the Operating System.

12.If the Issue is still not resolved, refer to Online Support Information.