Epson EMP-30 Setup Manual page 10

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When connecting the projector to a computer, be sure to check the
following.
The projector cannot be connected to some types of computer, or projection of images
may not be possible even if actual connection is possible. Make sure that the computer
you intend to use satisfies the conditions given below.
Condition 1: The computer must have an image signal output port.
Condition 2: The display resolution and frequency of the computer must be listed
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Turn off the power for both the projector and the computer before
connecting them. If the power for either device is on at the time of
connection, damage may result.
Check the shapes of the cable connectors and the device ports before
making the connections. If you try to force a connector to fit a device
port with a different shape or number of terminals, damage to the
connector or port may result.
Check that the computer has a port such as an "RGB port", "monitor port" or
"CRT port" which can output image signals.
If the computer has a built-in monitor, or if using a laptop computer, it may
not be possible to connect the computer to the projector, or alternatively you
may need to purchase a separate external output port. Refer to the
documentation for your computer under a heading such as "Connecting an
external monitor" or similar for further details.
in the "List of Supported Monitor Displays". ("Appendices: List of
Supported Monitor Displays" in User's Guide )
Some computers allow you to change the output resolution, so if necessary,
change the resolution to one that matches a setting in the "List of Supported
Monitor Displays", while referring to the documentation provided with the
computer.
You may need to purchase a separate adapter depending on the
shape of the computer's port. Refer to the documentation provided
with the computer for further details.
If the computer and projector are too far away from each other for the
accessory computer cable to reach, use the optional VGA-HD15 PC
cable. ("Appendices: Optional Accessories" in User's Guide )