LG 39LY750H Owner's Manual page 27

MAINTENANCE
Cleaning your TV
Clean your TV regularly to keep it at peak performance and to extend the product's lifespan.
CAUTION
• Before cleaning, turn the power off and disconnect the power cord and all other cables.
• When the TV is left unattended or unused for a long time, disconnect the power cord from the wall
outlet to prevent possible damage from lightning or power surges.
Screen, Frame, Cabinet, and Stand
To remove dust or light dirt, wipe the surface with a dry, clean, and soft cloth.
To remove major dirt, wipe the surface with a soft cloth dampened in clean water or a diluted mild
detergent. Then wipe immediately with a dry cloth.
CAUTION
• Do not push, rub, or hit the surface with your fingernail or a sharp object, as this may result in
scratches on the screen and image distortions.
• Do not use any chemicals, such as waxes, benzene, alcohol, thinners, insecticides, air fresheners, or
lubricants, as these may damage the screen's finish and cause discoloration.
• Do not spray liquid onto the surface. If water enters the TV, it may result in fire, electric shock, or
malfunction.
Power Cord
Remove the accumulated dust or dirt on the power cord regularly.
TROUBLESHOOTING
The software may be updated for improvement in performance. The customer is responsible to ensure
the compatibility of their equipment with any LG Electronics software. If needed, please consult
with LG Electronics and update new software versions according to the guidance provided by LG
Electronics.
Problem
Cannot control the TV with
the remote control.
No image display and no
sound is produced.
The TV turns off suddenly.
When connecting to the
PC (RGB/HDMI/DVI), No
signal or Invalid Format is
displayed.
• Check if anything such as tape has been placed over the receiver.
• Check if there is any obstacle between the product and the remote
control.
• Replace the batteries with new fresh ones.
• Check if the product is turned on.
• Check if the power cord is connected to a wall outlet.
• Check if there is a problem in the wall outlet by connecting other
products.
• Check the power control settings. The power supply may be interrupted.
• Check if the auto off feature is activated in the Time settings.
• Turn the TV off/on using the remote control.
• Reconnect the RGB/HDMI/DVI cable.
• Restart the PC with the TV on.
MAINTENANCE / TROUBLESHOOTING
Solution
27