Epson EB-680 - Projecting Images from the HDMI3 Port with the Optional Interface Box

Projecting Images from the HDMI3 Port with the Optional Interface Box
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When the optional interface box (ELPCB02) is being connected to the
projector, you need to select the following settings to project images from the
device connected to the projector's HDMI3 port. After selecting the settings,
the input source switches between HDMI2 and HDMI3 each time you press
the [HDMI2] button on the interface box.
a
Press the [Menu] button on the control panel or remote control.
b
Select the Extended menu and press [Enter].
c
Select Operation and press [Enter].