Acer Aspire V3-571G Acer Aspire V3-571 and V3-571G Notebook Service Guide - Page 187

Internal Speaker Failure If the internal speakers fail, perform the following: Start OK Check M/B SPK cable NG OK Re-assemble the SPK cable to M/B Check Logic lower OK Swap M/B NG Swap Logic lower 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. 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. 4-9 Troubleshooting