LG 28MT48AF-PT User Manual download pdf (Page 26)

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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 cord

and all other cables first.

• 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

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

damage to the screen.

• 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 as this may damage the product.

• 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.

Preventing “Image burn” or “Burn-in” on

your TV screen

• If a fixed image displays on the TV screen for a long period 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 time,

image burn may occur on the letterboxed area of the screen.

• Avoid displaying a fixed image on the TV screen for a long period

of time (2 or more hours for LCD) to prevent image burn.

Troubleshooting

General

Cannot control the TV with the remote control.

• Check the remote control sensor on the product and try again.

• Check if there is any obstacle between the product and the remote

control.

• Check if the batteries are still working and properly installed

( to , to ).

No image display and no sound is produced.

• 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.

Image appears slowly when the TV turns on.

• The image is muted during the product startup process. This is

normal. If the image does not appear in a few minutes, unplug the

TV for 30 seconds and try again. If the image still does not appear,

contact the authorized service center in your local area.

Cannot connect external devices.

• Refer to the “Other Connections” and connect an external device.

The TV turns off suddenly.

• Check the power control settings. The power supply may be

interrupted.

• Check if the Automatic Standby (Depending on model) /

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

automatically after 15 minutes of inactivity.

• If On Time is enabled, the TV will be turned on at the specified

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 SETTINGS ➾ TIME ➾ Auto Off(On Time) ➾

Off.

Audio

No sound is produced while images are displaying.

• Press + or - button.

• Check if the sound is muted by pressing MUTE.

• Scroll to other programme. There may a problem with the

broadcast.

• Check if the audio cables are connected properly.

• Check if the TV Speaker feature is activated in the menu option.

No output from one of the speakers.

• Adjust Balance in the menu option.

Unusual sound from inside the TV is produced.

• A change in ambient humidity or temperature may result in

an unusual noise when the product turns on or off. There is no

problem with your product.

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LG 28MT48AF-PT User Manual Page 26

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