Troubleshooting
4-11
Internal Speaker Failure
0
If internal Speakers fail, perform the following:
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:
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 that
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Summary of Contents for Aspire 4739Z
Page 1: ...Aspire 4739Z SERVICEGUIDE Downloaded from www Manualslib com manuals search engine ...
Page 10: ...x Downloaded from www Manualslib com manuals search engine ...
Page 11: ...CHAPTER 1 Hardware Specifications Downloaded from www Manualslib com manuals search engine ...
Page 14: ...1 4 Downloaded from www Manualslib com manuals search engine ...
Page 57: ...CHAPTER 2 System Utilities Downloaded from www Manualslib com manuals search engine ...
Page 88: ...3 4 Downloaded from www Manualslib com manuals search engine ...
Page 130: ...3 46 Machine Maintenance Procedures Downloaded from www Manualslib com manuals search engine ...
Page 131: ...CHAPTER 4 Troubleshooting Downloaded from www Manualslib com manuals search engine ...
Page 162: ...5 8 Jumper and Connector Locations Downloaded from www Manualslib com manuals search engine ...
Page 184: ...6 22 FRU Field Replaceable Unit List Downloaded from www Manualslib com manuals search engine ...
Page 186: ...1 2 Acer Aspire 4739Z 7 1 Downloaded from www Manualslib com manuals search engine ...
Page 203: ...CHAPTER 8 Test Compatible Components Downloaded from www Manualslib com manuals search engine ...
Page 213: ...CHAPTER 9 Online Support Information Downloaded from www Manualslib com manuals search engine ...
Page 214: ...9 2 Introduction 9 3 Downloaded from www Manualslib com manuals search engine ...