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Problem
Screen brightness is changed.
No input source.
Image or audio is unstable.
Picture is blurred.
Cause
The adapter is removed.
The adapter is not removed but the Power
Mode is switched to Eco or Low power
consumption.
The video source is not turned on or
connected correctly.
The projector is not correctly connected to
the input source device.
The video or audio file format is not
supported by the projector.
The connection cables are not securely
connected to the projector or the signal
source.
The Internet bandwidth is limited or
over-occupied.
The projector is out of effective range of
Bluetooth connection.
The projection lens is not correctly focused.
The projector and the screen are not
aligned properly.
70
Remedy
The light brightness is decreased in Eco and Low
power consumption to support longer projection. If
a brighter screen is preferred, connect the power
adapter to the projector and change the Power
Mode to Normal.
Turn the video source on and check that the signal
cable is connected correctly.
Check the connection.
Make sure the supported file format as described in
Supported file formats on page 78
contact the customer service for assistance.
Correctly connect the cables to the appropriate
terminals.
Connect to another wireless AP or to an Internet
channel of better speed.
Make sure the projector is within the effective range of
Bluetooth connection.
Make sure there is as less radio frequency interference
as possible when using a 2.4G network.
Adjust the focus of the lens using focus knob on the
projector.
Adjust the projection angle and direction as well as the
height of this projector if necessary.
is being played, or
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