Canon DC-4381 - Manual (Page 30)

EN-30
Turn on the power of the connected device, or check whether
there is something wrong with the connected device.
Check the external device outputs signals. (Check this
especially when the external device is a notebook
computer.)
Check that the cable connected to the external device
isn’t defective.
Check that the projector is connected to the external
device using the correct terminals.
Check that the connected device is correctly selected as
the input source.
When an extension cord is being used, replace it with the
supplied cable and check whether images are projected
correctly.
Cause and solution
Cause and solution
Images aren’t projected correctly.
“Searching for source” is
displayed.
Problem
Projected images are shaking.
Projected images are displaced.
Check that the cable connected to the external
device isn’t intermittent.
Connect the cable’s plug with the external device’s
connector firmly.
Some computers output out-of-spec signals on rare
occasion. Adjust the Image menu.
Adjust the projector and the screen so that they
are perpendicular to each other.
Adjust Brightness in the Color menu.
Adjust the focus.
Clean the lens.
Adjust Brightness and Contrast in the Color menu.
Adjust the projector and the screen so that they
are perpendicular to each other.
Projected images are distorted.
Projected images are dark.
Projected images are blurred.
Problem