Troubleshooting - LG CF3DA Owner's Manual

Miscellaneous

Troubleshooting

Please check the following when there is a problem with the projector before contacting LG Electronics Service Center.
Symptom
Q. I cannot see a video on the screen.
Q. "No signal" is displayed on the
screen.
Q. "This mode is not supported (or 'No
supported mode')" is displayed.
Q. Part of the video or the entire video is
blurred or there is no focus.
Q. Video colors are abnormal.
Q. There is no screen output for HDMI
connection.
Q. 3D video is displayed abnormally.
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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.
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.
A. The projector cannot interpret the computer signal.
Check supported monitor display format.
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.
A. It is necessary to adjust color balance. Adjust Color in Video Setting.
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.
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.
Checkpoint and Solution