Toshiba Satellite Pro L450-EZ1510 User Manual - Page 146
Check within the Windows Device Manager, Sound system, Operating Basics
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L450/L450D Problem An error will occur if a memory module is inserted into Slot B while no memory module is inserted in Slot A. Procedure Remove the memory module from Slot B and insert it into Slot A. Sound system In addition to the information in this section, please also refer to the documentation supplied with your audio device. Problem Procedure No sound is heard Adjust the volume control. Turn the dial clockwise to decrease the volume and turn it counter-clockwise to increase the volume. Check the software volume settings. Please check to see if Mute is turned to Off. Check to make sure the headphone connection is secure. Check within the Windows Device Manager application to ensure the sound function is enabled. If you are still unable to resolve the problem, contact your reseller, dealer or service provider. Annoying sound is heard In this instance you may be experiencing feedback from either the internal microphone or an external microphone connected to the computer - please refer to Sound system in Chapter 4, Operating Basics, for further information. Volume cannot be adjusted when Windows is turned on or turned off. If you are still unable to resolve the problem, contact your reseller, dealer or service provider. 9-16 User's Manual