Acer Aspire 5750 Service Guide - Page 144

Internal Speaker Failure 0 If internal Speakers fail, perform the following: Figure 4-6. Internal Speaker Failure Sound Problems 0 Perform the following: 1. Boot the computer. 2. Navigate to Start Control Panel System and Maintenance System Device 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. http://4m-1y0comp.su T,roсuеbрleвsиhoсoмtinаg