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LG RD-JT40/41 Service Manual
26
11. TROUBLE SHOOTING
Common Problems & Solutions
PROBLEMS TRY THESE SOLUTIONS
NO POWER
Make sure the power cord is inserted snuged into the AC
adapter socket.
Make sure the power cord is inserted snuged into the power
outlet.
Toggle the power switch to the position "I#
Wait two minutes after the projector is turned off before
turning the projector back on.
NO PICTURE
Check for the proper input source.
Ensure all cables are connected properly.
Adjust the brightness and contrast.
Remove the lens cap.
TRAPEZOID IMAGE ON
THE SCREEN
Reposition the unit to improve its angle on the screen.
Use the Keystone correction key on the control panel of
the projector or the remote control unit.
POOR COLOR
Select the correct video system.
Adjust brightness, contrast, or saturation.
BLURRED IMAGE Press Auto on the control panel of the projector or the
remote control unit to get better picture quality.
Adjust the focus.
Reposition the unit to improve its projection angle.
Ensure the distance between the unit and screen is within
the adjustment range of the lens.
REMOTE CONTROL
DOES NOT WORK
Replace the batteries with new ones.
Make sure there is no obstacle between the remote
control and the projector.
Stand within 4 meters (13 feet) of the projector.
Make sure nothing is blocking the front and rear receivers.
Status Messages
On-Screen Messages Description
SEARCHING Projector is searching for input.
ACQUIRING SIGNAL
Projector has identified the input signal and is running the auto
image adjustment function.
OUT OF RANGE Input signal frequency exceeds the projector!s range.
LAMP WARNING
CHANGE LAMP AND
RESET LAMP TIMER!
The lamp has been in operation for 1400 hours. Install a new
lamp for optimal performance.
OUT OF LAMP USAGE
TIME. CHANGE THE
LAMP!
The lamp has been in operation for 1480 hours, and the power
will turn off after 20 hours.
OUT OF LAMP USAGE
TIME. YOU HAVE TO
CHANGE THE LAMP!
The lamp has been in operation for over 1500 hours. The
warning message will display for 30 seconds every 5 minutes
after you turn on the projector and the power will turn off
automatically after 10 minutes.