About Sound; Headphone Connector - Sony Vaio PCG-FX401 Instruction & Operation Manual

Getting help
The disc tray ejects even when it has been locked into place
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Ensure that the disc is placed with the label side facing up.
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Clean the disc and the CD-ROM drive lens.
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The disc may be scratched. Place another disc to see if that is the reason.
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There may be condensation in the drive. Remove the disc and leave the drive open for approximately one hour.

About sound

My speakers are not producing sound
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The built-in speakers may be turned off. Press <Fn>+<F3> to turn on the speakers.
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The speaker volume may be turned to the minimum. Press <Fn>+<F4>, and then press
volume.
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If your computer is powered by battery, check that the battery is inserted properly and that it is charged.
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If you are using an application that has its own volume control, check that the volume is turned up.
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Check the volume controls in Windows
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If you use 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 batteries power the speakers, check that the batteries are
inserted properly and that they are charged.
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If you have connected an audio cable to the headphone connector, disconnect the cable.
My microphone does not work
If you are using an external microphone, check that the microphone is plugged into the microphone connector.
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