User guide

Miscellaneous
46
Troubleshooting
Please check the following when there is a problem with the projector before contacting LG Electronics Service Center.
Symptom Checkpoint and Solution
Q. I cannot see a video on the screen.
A. Check if the power light is turned on or the lens cap is closed.
In addition, check if the cables are connected correctly according to
the description in this manual.
A wrong input signal may have been selected. Select another input
signal by pressing the input selection button of the remote control or
control panel.
Q. "No signal" is displayed on the
screen.
A. A video device which is not connected to the projector has been
selected, there is no signal from a computer or video device, or a con-
nector has been incorrectly connected. Check the connection between
the projector and the video device and also check if the input signal
from the video device has been selected correctly.
Q. "This mode is not supported (or 'No
supported mode')" is displayed.
A. The projector cannot interpret the computer signal.
Check supported monitor display format.
Q. Part of the video or the entire video is
blurred or there is no focus.
A. Adjust the focus and position of the video.
A. Adjust video settings.
A. There may be dust or stains on the lens. Clean the lens according to
the description in the Maintenance section.
Q. Video colors are abnormal. A. It is necessary to adjust color balance. Adjust Color in Video Setting.
Q. There is no screen output for HDMI
connection.
A. Check if the HDMI cable is a high-speed HDMI ® cable.
If it is not a high-speed HDMI ® cable, the screen may flicker or not
display anything.
Q. 3D video is displayed abnormally.
A. Select another 3D video.
A. Press the "3D OPTION" button on the remote control and go to the
3D Configuration menu. Select better 3D video when changing the
"3D Configuration".
A. Check if the screen is 3D-compatible.