LG CF3DAT - Manual (Page 56)

Miscellaneous
56
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 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 input with no connection has been selected, there is no signal
from a computer or video device, or a connector 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". (Refer to page 20.)
A. Check if the screen is 3D-compatible.
Q. The screen on all the channels or a
specific channel is overlapped or
there are stripe patterns.
A. Turn the antenna toward the broadcasting station or connect the
antenna correctly according to "How to Connect an Antenna".
Q. I cannot see some channels.
A. Adjust the position or direction of the antenna.
A. Add the desired channel in [Auto Tuning] / [Delete/Add] or [Channel
List].
Q. A video is stopped or broken for dig-
ital broadcasts.
A. This happens when a signal is weak or reception is unstable. Adjust
antenna direction or check cable connection.
A. If the intensity or quality of a signal is low in MENU CHANNEL
Manual Tuning, contact your broadcasting station or administration
office to check the signal.
Q. I cannot see digital broadcasts even
though I am using a cable television.
A. Check your subscription information to your cable television service
provider or ask for the signal to be checked.
(Some products do not provide digital broadcasts.)