Sony VAIO VGN-TZ100 Series User Manual page 237

IRX-3960_BGN
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.
IRX-3960_END
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.
What should I do if I do not hear sound from the built-in speakers?
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 the speaker volume is turned up loud enough and the audio option is enabled.
IRX-3960_BGN
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.
IRX-3960_END
Check the Windows volume controls by clicking the volume icon on the taskbar.
Except IRX-3960_BGN
What should I do if I do not hear microphone or line-in sound from my HDMI-compatible
TV?
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Troubleshooting