Sony VGNSZ640N04 Laptop User Manual


 
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Troubleshooting
Speakers
What should I do if my external speakers do not work?
If you are using a program that has its own volume control, make sure the volume control is properly set. See the
program's help file for more information.
Make sure your speakers are properly connected and the volume is turned up loud enough to hear sound.
Make sure your speakers are designed for computer use.
If your speakers have a muting button, set the button to off.
The volume may have been turned off by the Fn+F2 keys. Press them once again.
The volume may have been minimized by the Fn+F3 keys. Press the Fn+F4 keys to turn up the volume loud enough to
hear sound.
If your speakers require external power, make sure the speakers are connected to a power source. See the manual that
came with your speakers for more information.
Check the Windows volume controls by clicking the volume icon on the taskbar.