Epson BrightLink 1485Fi 5000-Lumen Pixel-Shift Full HD Ultra-Short Throw 3LCD Interactive Laser Projector - Manual (Page 132)

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Make sure that you aim the remote control at the projector's receivers within the angles listed here.
1 19.7 feet (6 m)
2 ± 30°
3 ± 55°
4 60°
5 15°
Note: Avoid using the remote control in conditions with bright fluorescent lights or in direct sunlight, or
the projector may not respond to commands. If you will not use the remote control for a long time,
remove the batteries.
Parent topic: Using Basic Projector Features
Selecting an Image Source
If you connected multiple image sources to the projector, such as a computer and DVD player, you may
want to switch from one image source to the other.