Maintenance; 13 -Cleaning Your Tv; 13 -Screen, Frame, Cabinet And Stand; 13 -Power Cord - LG MT57 Series Owner's Manual

Maintenance

Cleaning your TV
Clean your TV regularly to keep the best performance and to extend
the product lifespan.
Make sure to turn the power off and disconnect the power
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cord and all other cables first.
When the TV is left unattended and unused for a long time,
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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.
Avoid touching the screen at all times, as this may result in
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damage to the screen.
Do not push, rub, or hit the screen surface with your fingernail
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or a sharp object, as this may result in scratches and image
distortions.
Do not use any chemicals as this may damage the product.
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Do not spray liquid onto the surface. If water enters the TV, it
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may result in fire, electric shock, or malfunction.
Power cord
Remove the accumulated dust or dirt on the power cord regularly.
Preventing "Image burn" or "Burn-in" on
your TV screen
If a fixed image displays on the TV screen for a long period
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of time, it will be imprinted and become a permanent
disfigurement on the screen. This is "image burn" or "burn-in"
and not covered by the warranty.
If the aspect ratio of the TV is set to 4:3 for a long period of
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time, image burn may occur on the letterboxed area of the
screen.
Avoid displaying a fixed image on the TV screen for a long
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period of time (2 or more hours for LCD) to prevent image
burn.

Troubleshooting

Cannot control the TV with the remote control.
Check the remote control sensor on the product and try again.
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Check if there is any obstacle between the product and the
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remote control.
Check if the batteries are still working and properly installed
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( to , to ).
No image display and no sound is produced.
Check if the product is turned on.
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Check if the power cord is connected to a wall outlet.
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Check if there is a problem in the wall outlet by connecting
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other products.
The TV turns off suddenly.
Check the power control settings. The power supply may be
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interrupted.
Check if the Automatic Standby (Depending on model)
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/ Sleep Timer / Off Time feature is activated in the TIME
settings.
If there is no signal while the TV is on, the TV will turn off
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automatically after 15 minutes of inactivity.
When connecting to the PC (HDMI/RGB), 'No signal' or 'Invalid Format'
is displayed.
Turn the TV off/on using the remote control.
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Reconnect the HDMI/RGB cable.
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Restart the PC with the TV on.
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If TV is turned off automatically.
If On Time is enabled, the TV will be turned on at the specified
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time. If you do not operate the TV for two hours, the TV will be
turned off automatically.
To disable this function, use your remote control to go to
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SETTINGS TIME Auto Off(On Time) Off.
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