Troubleshooting - LG 75SM99 Series Owner's Manual

Troubleshooting

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 ,
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.
The TV turns off suddenly.
• Check the power control settings. The power
supply may be interrupted.
• Check if the auto-off function is activated on
the settings related time.
• 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), no signal is
detected.
• Turn the TV off/on using the remote control.
• Reconnect the HDMI cable.
• Restart the PC with the TV on.
Abnormal Display
• If the product feels cold to the touch, there
may be a small "flicker" when it is turned on.
This is normal, there is nothing wrong with
product.
• This panel is an advanced product that
contains millions of pixels. You may see tiny
black dots and/or brightly coloured dots
(red, blue or green) at a size of 1 ppm on the
to ).
panel. This does not indicate a malfunction
and does not affect the performance and
reliability of the product. This phenomenon
also occurs in third-party products and is not
subject to exchange or refund.
• You may find different brightness and colour
of the panel depending on your viewing
position(left/right/top/down).
This phenomenon occurs due to the
characteristic of the panel.
It is not related with the product
performance, and it is not malfunction.
• Displaying a still image for a prolonged
period of time may cause image sticking.
Avoid displaying a fixed image on the TV
screen for a long period of time.
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