Acer Aspire 5733 Acer Aspire 5333, 5733, 5733Z Notebook Service Guide - Page 132

Internal Speaker Failure 0 If internal Speakers fail, perform the following: Start Check M/B SPK cable OK Check Logic upper OK Re-assemble NG the SPK cable to M/B OK NG Swap Logic upper Swap M/B Figure 4-6. Internal Speaker Failure Sound Problems 0 Perform the following, one at a time. 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: 4-10 Troubleshooting