Sony Vajo VGC-LT20 Series User Manual page 167

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Troubleshooting
What should I do if I do not hear audio input from the built-in microphone through the built-
in speakers or if the built-in microphone does not work?
Follow these steps to disable the acoustic echo canceller function:
1 Turn on the computer.
2 Press the F2 key when the VAIO logo appears.
The BIOS setup screen appears. If not, restart the computer and press the F2 key several times when the VAIO logo
appears.
3 Press the
~
or ... key to select
Advanced
to display the
Advanced
tab, select
Voice Processor,
and then press the
Enter
key.
4 Press the
t
or .. key to select
Disabled
and press the
Enter
key.
S
Press the
~
or ... key to select
Exit,
select
Exit Setup,
and then press the
Enter
key.
At the confirmation prompt, press the
Enter
key.