LG 42LA7909-ZA, Owner'S Manual

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27
ENG
ENGLISH
MAINTENANCE / TROUBLESHOOTING
MAINTENANCE
Cleaning your TV
Clean your TV regularly to keep the best performance and to extend the product lifespan.
CAUTION
y
Make sure to turn the power off and disconnect the power cord and all other cables first.
y
When the TV is left unattended and 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
y
To remove dust or light dirt, wipe the surface with a dry, clean, and soft cloth.
y
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
y
Avoid touching the screen at all times, as this may result in damage to the screen.
y
Do not push, rub, or hit the screen surface with your fingernail or a sharp object, as this may result in
scratches and image distortions.
y
Do not use any chemicals as this may damage the product.
y
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
Problem Solution
Cannot control
the TV with the
remote control.
y
Check the remote control sensor on the product and try again.
y
Check if there is any obstacle between the product and the remote control.
y
Check if the batteries are still working and properly installed ( to , to ).
No image display
and no sound is
produced.
y
Check if the product is turned on.
y
Check if the power cord is connected to a wall outlet.
y
Check if there is a problem in the wall outlet by connecting other products.
The TV turns off
suddenly.
y
Check the power control settings. The power supply may be interrupted.
y
Check if the Auto Standby or Off Time feature is activated in the TIME
settings.
y
If there is no signal while the TV is on, the TV will turn off automatically after
15 minutes of inactivity.
When connecting
to the PC (HDMI
DVI), ‘No signal’
or ‘Invalid Format’
is displayed.
y
Turn the TV off/on using the remote control.
y
Reconnect the HDMI cable.
y
Restart the PC with the TV on.