Epson BrightLink 1485Fi 5000-Lumen Pixel-Shift Full HD Ultra-Short Throw 3LCD Interactive Laser Projector - Manual (Page 151)

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5. Press Menu or Esc to exit the menus.
Parent topic: Using Basic Projector Features
Controlling the Volume with the Volume Buttons
You can use the Volume buttons on the remote control to adjust the volume of your projected content.
The volume buttons control the projector’s internal speaker system or any external speakers you
connected to the projector.
You must adjust the volume separately for each connected input source.
1. Turn on the projector and start a presentation that includes audio.
2. To lower or raise the volume, press the Volume buttons on the remote control.
A volume gauge appears on the screen.
3. To set the volume to a specific level for an input source, use the projector menus.
Parent topic: Using Basic Projector Features
Inverting the Audio Channels
You can invert the audio's left and right channels to match the projector installation position.
1. Turn on the projector and start a presentation.
2. Press the Menu button.