4-10 TroubleshootingInternal Speaker Failure 0If internal Speakers fail, perform the following, one at a time. Do not replace a non-defectiveFRU: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´ DeviceManager. Check the Device Manager to determine that:z The device is properly installedz There are no red Xs or yellow exclamation marksz There are no device conflictsz 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:z Click the volume icon on the taskbarz Drag the slider to 50. Confirm that the volume is not muted.StartOKNGOKNGSwap M/BCheck M/B SPKcableRe-assemble theSPK cable to M/BCheck LogicUpper/LogicupperSwap Logiclower/Logic upper
