Sony Personal Computer manual Troubleshooting Audio, My speakers have no sound, 131

Troubleshooting Audio

Troubleshooting Audio

My speakers have no sound.

❑If the built-in speakers are turned off, press the Fn+F3 keys to turn on the speakers. You can also turn on the speakers using the Jog Dial control.

❑If the speaker volume is turned to the minimum, press the Fn+F4 keys, and

then press or to increase the volume or you can use the Jog Dial control to control the volume.

❑If nothing is displayed when you press the Fn+F3 or Fn+F4 keys, then:

1Click Start, point to Control Panel, click “Sounds, Speech, and Audio Devices,” and click “Sounds and Audio Devices.” The Sounds and Audio Devices Properties dialog box appears.

2Verify that the Mute box has not been checked, and that the volume is not on the lowest setting. You can choose advanced options to customize audio settings.

❑If your computer is battery-powered, check that the battery pack is inserted properly and that it is charged.

❑If you are using an application that has its own volume control, check that the volume is turned up.

❑Check the volume controls in Windows®.

❑If you connect external speakers, check that the speakers are properly connected and the volume is turned up. If the speakers have a mute button, make sure it is off. If the speakers are powered by batteries, check that the batteries are inserted properly and that they are charged.

❑If you have connected an audio cable to the Headphone jack, disconnect the cable.

There is noise distortion while listening to music with USB speakers or USB headphones.

Use the preinstalled PowerPanel™ software to set the CPU control to Performance. Do the following:

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