Acer L811 User Manual page 35

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Control Panel
Lock
Information
Displays current status of this projector.
Audio
Volume
Mute
Power On/Off
Volume
SPDIF
Audio Mode
Off: Allows all keys on the control panel to operate
normally.
Child Lock: Disables the Power key on the control
panel when the projector is in standby mode to
prevent it from being accidentally turned on. To turn
the projector on, press and hold the Power key for 3
seconds.
Full Lock: Disables all keys on the control panel. If you
turn off the projector without disabling the Full Lock
function, the projector will still be in locked status the
next time it is turned on. To disable Full Lock function,
press and hold "POWER" on the control panel for 7
seconds and the Control Panel Lock will be set to
"Off". When the projector is in standby mode, press
and hold "POWER" on the control panel for 7 seconds
to turn the projector on and the Control Panel Lock
will be set to "Off".
Press
to decrease the volume.
Press
to increase the volume.
Choose "On" to turn mute on.
Choose "Off" to turn mute off.
Select this function to adjust the notification volume
when turning the projector on/off.
The default value is "Off"
enabled, the audio output connector and internal
speaker(s) will be turned off.
Mode
There are several factory-preset sound modes optimized
for different audio categories.
Treble
Adjusts treble level.
Bass
Adjusts bass level.
. When this function is
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