Acer K137 - Manual (Page 28)

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Setting
Management
Audio
Reset
Press the button and choose "Yes" to return the parameters
on all menus to the factory default settings.
ECO Mode Choose "On" to dim the projector LED brightness which will lower
power consumption, extend the LED life and reduce noise. Choose
"Off" to return normal mode.
High Altitude Choose "On" to turn on High Altitude mode. Operate the fans at
full speed continuously to allow for proper high altitude cooling of
the projector.
Turn Off Mode • Instant Off: Shuts down the projector without fan cooling.
• Instant Resume: Resumes the system when the Power button
is pressed again within 2 minutes.
Auto Shutdown The projector will automatically shutdown when there is no signal
input after the allocated time. (default is 120 minutes)
LED Calibration
Press after choosing "Yes", please wait for 10 seconds to finish
the white color fine tune process. It helps to adjust LED color
performance.
Volume • Press to decrease the volume.
• Press to increase the volume.
Volume Boost Choose "On" to increase volume for low volume content.
SRS • Choose "On" to enable SRS Wow HD.
•
Choose "Off" to disable SRS Wow HD.
Treble Adjust tones of high frequency.
Bass Adjust tones of low frequency.
Mute • Choose "On" to mute the volume.
• Choose "Off" to restore the volume.
Alarm Volume Select this function to adjust the volume of any warning
notifications.
Audio Out • Choose "Speaker" to play sound through the projector's
speaker. (internal)
• Choose "Audio Jack" to play sound from your headphone
or audio amplifier. (external)