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4-10
Troubleshooting
Internal Speaker Failure
0
If internal Speakers fail, perform the following, one at a time. Do not replace a non-defective
FRU:
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 task bar
Summary of Contents for Aspire S7-391
Page 1: ...Aspire S7 391 SERVICEGUIDE ...
Page 9: ...CHAPTER 1 Hardware Specifications ...
Page 38: ...1 30 Hardware Specifications and Configurations ...
Page 39: ...CHAPTER 2 System Utilities ...
Page 58: ...2 20 System Utilities ...
Page 59: ...CHAPTER 3 Machine Maintenance ...
Page 96: ...3 38 Machine Maintenance 4 Detach the keyboard from the upper case Figure 3 58 Keyboard ...
Page 128: ...3 70 Machine Maintenance ...
Page 129: ...CHAPTER 4 Troubleshooting ...
Page 158: ...4 30 Troubleshooting ...
Page 159: ...CHAPTER 5 Jumper and Connector Locations ...
Page 165: ...CHAPTER 6 FRU List ...
Page 166: ...6 2 Aspire S7 391 Exploded Diagrams 6 4 Main Assembly 6 4 FRU List 6 6 ...
Page 177: ...CHAPTER 7 Test Compatible Components ...
Page 178: ...7 2 Microsoft Windows 7 Environment Test 7 3 ...
Page 183: ...CHAPTER 8 Online Support Information ...
Page 184: ...8 2 Online Support Information 8 3 ...
Page 186: ...8 4 ...