Epson PowerLite U50 3700-Lumen WUXGA 3LCD Projector - Manual (Page 41)

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If you want to output images to an external monitor when the projector is turned off, you need to select
Always On as the A/V Output setting in the projector's Extended menu.
Note: Monitors that use a refresh rate less than 60 Hz may not be able to display images correctly.
1. Make sure your computer is connected to the projector's Computer port. If there are two computer
ports, make sure you use the Computer1 port.
2. Connect the external monitor's cable to your projector's port.
Parent topic: Projector Connections
Related references
Projector Setup Settings - Extended Menu
Connecting to External Speakers
To enhance the sound from your presentation, you can connect the projector to external self-powered
speakers. You can control the volume using the projector's remote control.
You can also connect the projector to an amplifier with speakers.
If you want to output audio from the external speakers when the projector is turned off, you need to
select
Always On as the A/V Output setting in the projector's Extended menu.
Note: The projector's built-in speaker system is disabled when you connect external speakers.
1. Make sure your computer or video source is connected to the projector with both audio and video
cables as necessary.