Acer Aspire 5349 Service Manual

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Contents

Acer Aspire 5349 Service Manual Manual pdf 147 page image

Troubleshooting 4-11Internal Speaker Failure 0If internal Speakers fail, perform the following:Figure 4-6. Internal Speaker FailureSound Problems 0Perform 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 Devices3. 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 Start Control Panel Hardware and Sound Sound. Confirm