Gateway 400VTX User Manual page 35

Press and hold F , then
N
press this system key...
Home
PgUp
PgDn
To...
Decrease the brightness of the display.
Mute the sound. Press the key combination again to restore the
sound. For more information, see "Adjusting the volume" on
page 76.
Increase volume. For more information, see "Adjusting the
volume" on page 76.
Decrease volume. For more information, see "Adjusting the
volume" on page 76.
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Using the keyboard
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