Epson PowerLite 1781W 3200-Lumen WXGA 3LCD Projector - Manual (Page 33)

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2. Connect the other end to any available USB port on your computer.
3. If necessary, configure your computer to work with an external USB mouse. See your computer
documentation for details.
Parent topic: Connecting to Computer Sources
Related tasks
Using the Remote Control as a Wireless Mouse
Connecting to a Computer for Sound
If your computer presentation includes sound and you did not connect it using the projector's USB
TypeB or HDMI port, you can still play sound through the projector's speaker system. Just connect an
optional 3.5 mm stereo mini-jack audio cable as described here.
1. Connect the audio cable to your laptop's headphone or audio-out jack, or your desktop's speaker or
audio-out port.
2. Connect the other end to the projector's Audio port.
Parent topic: Connecting to Computer Sources
Connecting to Video Sources
Follow the instructions in these sections to connect video devices to the projector.
Connecting to an HDMI Video Source
Connecting to an MHL-Compatible Device
Connecting to a Component Video Source
Connecting to a Composite Video Source
Connecting to a Video Source for Sound