Internal Speaker Failure - Acer TravelMate P633M Service Manual

Internal Speaker Failure

If internal Speakers fail, perform the following, one at a time. Do not replace a non-defective
FRU:
Sound Problems
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:
 Click the volume icon on the task bar
HTTP://MYCOMP.SU/ - Maintenance and Service Guide,Service Manual,Motherboard Schematics for Laptop/notebook
4-10
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Figure 4-6. Internal Speaker Failure
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