Acer K138ST User Manual - Page 28

English 18 Management ECO Mode High Altitude Turn Off Mode Auto Shutdown AC Power On LED Calibration 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. 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. • Instant Off: Shuts down the projector without fan cooling. • Instant Resume: Resumes the system when the Power button is pressed again within 2 minutes. The projector will automatically shutdown when there is no signal input after the allocated time. (default is 120 minutes) Choose "On" to power on projector while AC power plug in. Press after choosing "Yes", please wait for 10 seconds to finish the white color fine tune process. It helps to adjust LED color performance. Audio Volume Volume Boost BT Speaker DTS Sound Treble Bass Mute Alarm Volume • Press • Press to decrease the volume. to increase the volume. Choose "On" to increase volume for low volume content. Adjust Bluetooth Headset Speaker. Show "Connected" or "NotConnected" and Press , to enter pop-up menu. • Bluetooth: Turn on/off the Bluetooth. • Device Search: This function to list BT speakers (which is in paring mode and with A2DP service) and connect manually by user. Internal speaker off while BT speaker connection is connected successfully. DTS Sound™ is a sound enrichment suite that includes several post processing techniques to expand the sound image, enhance bass, improve definition and add natural surround effects. • Choose "On" to enable DTS Sound. • Choose "Off" to disable DTS Sound. Adjust tones of high frequency. Adjust tones of low frequency. • Choose "On" to mute the volume. • Choose "Off" to restore the volume. Select this function to adjust the volume of any warning notifications.