Troubleshooting; Using The Help Function - Epson EMP-7800 Quick Reference Manual

Troubleshooting

If you cannot select
computer images or the
images do not project
correctly
The computer cannot
be selected as the
image source
Images appear
greenish or purplish
Only part of the
image is displayed
Only part of the
images are projected

Using the help function

If a problem occurs with the projected images even though the projector is set up and connected
correctly, check the following points.
If the following does not solve the problem
Was the projector and
computer connected while
their power was already
turned on?
Is the computer display output
set to only the computer's
accessory screen?
Do the input signal settings
match the projector settings?
(When connected to the [BNC] port)
Do the input signal settings
match the projector settings?
(When connected to the [BNC] port)
Has the computer been set for
dual display?
If a problem occurs with the projector, the Help function uses on-screen displays to assist you in
solving the problem.
Press the button and answer the questions that are displayed to proceed through
the help screens.
User's Guide "When the Indicators Provide No Help"
If the connection is made while the power is already turned on, the
function [Fn] key that switches the computer's video signal to external
output may not work. Turn the power for the connected computer and
the projector back on.
The image signals need to be output to the projector.
Change the output setting to an external destination only or to an
external destination as well as the computer's own monitor.
Computer documentation, under a title such as
"External output" or "Connecting an external monitor"
Repeatedly press the button on the remote control or use the
"BNC Input" command in the "Setting" menu to select the format
that matches the equipment signal.
Repeatedly press the button on the remote control or use the
"BNC Input" command in the "Setting" menu to select the format
that matches the equipment signal.
Cancel the dual display setting in the connected computer's Control
Panel.
Computer documentation, under a title such as "Video driver"
User's Guide "Using the Help"
User's Guide "Troubleshooting"