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4-10 Troubleshooting
Internal & External 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 Security
System
Device Manager.
Check the Device Manager to determine that:
The device is properly installed
There are no red X 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
Drag the slider to 50. Confirm that the volume is not muted.
START
NG
NG
Swap MB
Reassemble the
SPK cable to MB
Swap Reassembl e
The SPK modul e
Check SPK
modul e
Check MB
SPK cabl e
START
NG
NG
Swap MB
Reassemble I/O
Board FPC
Swap I/O Board
Check I/O
Board OK?
Check I/O Board
Connect i on