LG 15LN766A0UB Quick start guide

X 2
(M3 x L5.5)
12 14 16 20
X 4
(M4 x L14)
X 1
(M6.35 x L22.23)
www.lg.com
LED TV
15LN766A0UB
ENGLISH
Easy Setup Guide
Please read this manual carefully before operating your set and retain it for future reference.
ESPAÑOL
Guía Rápida de Configuración
Lea atentamente este manual antes de poner en marcha el equipo y consérvelo para futuras consultas.
FRANÇAIS
Guide de configuration rapide
Avant d’utiliser l’appareil, veuillez lire attentivement ce manuel et le conserver pour pouvoir vous y reporter ultérieurement.
Printed in Korea / Imprimé en Corée

ENGLISH Read Safety and Reference.
WARNING : To prevent injury, this apparatus must be securely attached to the desk/wall in accordance with the Safety and Reference.
ESPAÑOL Leer Seguridad y Consultas.
ADVERTENCIA : Para prevenir daños, este aparato debe ser instalado a la mesa/pared de acuerdo a la guía de Seguridad y Consultas.
FRANÇAIS Lisez Sécurité et références.
AVERTISSEMENT : Pour éviter les blessures, cet appareil doit être solidement xé au bureau ou au mur, conformément aux directives du
manuel Sécurité et références.
12
3 4

5
360º
360º

Kg
15LN766A0UB 391.4
(15.4)
391,4
(15,4)
278.6
(10.9)
278,6
(10,9)
46.1
(1.8)
46,1
(1,8)
2.85
(6.2)
2,85
(6,2) 35 W
POC 28 V~ 60 HZ
or 24 V 1.4 A
DC IN 19 V 1.6 A

360º
CAUTION
This product does not rotate ±180 ˚.
If you feel resistance
during the rotation,
do not over-rotate forcefully
but rotate in the opposite direction.
Product will be damaged
by over-rotation.
MISE EN GARDE
360º
Ce produit ne permet pas d’eectuer
une rotation de plus ou moins 180°.
Si vous sentez une résistance
pendant la rotation, ne continuez
pas à faire pivoter le produit;
exercez plutôt une rotation dans le
sens inverse.
Une rotation excessive
endommagera le produit.

*MFL71943302*
(2212-REV00)

*MFL71933702*
(2307-REV01)
www.lg.com
Copyright © 2022 LG Electronics Inc. All Rights Reserved.
Printed in Korea
OWNER’S MANUAL
Safety and Reference
LED TV*
* LG LED TV applies LCD screen with LED backlights.
Please read this manual carefully before operating your set and retain it
for future reference.
15LN766A0UB
15LN766F0UB

2
ENGLISH
TABLE OF CONTENTS
Important Safety Instruction
Warning! Safety instructions
Preparing
Optional Extras
6 AC/DC Adapter
6 Wall Mounting Bracket
Lifting and Moving the TV
Securing TV to the Wall
Mounting on a Wall
Connections
9 Antenna/Cable
10 Other connections
10 Network setup
Using the Button
Troubleshooting
Settings
13 Selecting Picture Mode
13 Adjusting the Brightness of a Picture
13 To use Energy Saving Feature
Specifications
15 HDMI (PC) supported mode
15 HDMI (DTV) supported mode
15 Supported External Subtitles
15 Supported Photo Formats
16 Supported Audio Formats
16 Supported Video Formats
Open Source Software Notice Information
Updating Firmware
Licenses
Regulatory
18 FCC Notice
18 FCC Radio Frequency Interference Requirements (for UNII
devices)
18 FCC RF Radiation Exposure Statement
19 Industry Canada Statement
19 IC Radiation Exposure Statement
19 RSS-247 Requirement
20 NOTETO CABLE/TV INSTALLER
20 WARNING! (STABILITY HAZARD)
20 Symbols
21 LG Take-back & Recycling Policy

3
ENGLISH
Important Safety Instruction
•Read these instructions.
•Keep these instructions.
•Heed all warnings.
•Follow all instructions.
•Do not use this apparatus near water.
•Clean only with dry cloth.
•Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
•Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including
amplifiers) that produce heat.
•Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with
one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade
or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an
electrician for replacement of the obsolete outlet.
•Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the
point where they exit from the apparatus.
•Only use attachments/accessories specified by the manufacturer.
•Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus.
When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
•Unplug this apparatus during lightning storms or when unused for long periods of time.
•Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in
any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the
apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

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ENGLISH
•Ventilation
-Install your TV where there is proper ventilation. Do
not install in a confined space such as a bookcase.
-Do not install the product on a carpet or cushion.
-Do not block or cover the product with cloth or
other materials while unit is plugged in.
•Take care not to touch the ventilation openings.
When watching the TV for a long period, the
ventilation openings may become hot.
•Protect the power cord from physical or mechanical
abuse, such as being twisted, kinked, pinched,
closed in a door, or walked upon. Pay particular
attention to plugs, wall outlets, and the point where
the cord exits the device.
•Do not move the TV whilst the Power cord is
plugged in.
•Do not use a damaged or loosely fitting power cord.
•Be sure to grasp the plug when unplugging the
power cord. Do not pull on the power cord to unplug
the TV.
•Do not connect too many devices to the same AC
power outlet as this could result in fire or electric
shock.
•Disconnecting the Device from the Main Power
-The power plug is the disconnecting device. In
case of an emergency, the power plug must remain
readily accessible.
•Do not let your children climb or cling onto the TV.
Otherwise, the TV may fall over, which may cause
serious injury.
•Outdoor Antenna Grounding (Can differ by
country):
-If an outdoor antenna is installed, follow the
precautions below. An outdoor antenna system
should not be located in the vicinity of overhead
power lines or other electric light or power circuits,
or where it can come in contact with such power
lines or circuits as death or serious injury can occur.
Be sure the antenna system is grounded to provide
some protection against voltage surges and
built-up static charges Section 810 of the National
Electrical Code (NEC) in the U.S.A. provides
information with respect to proper grounding of
the mast and supporting structure, grounding
of the lead-in wire to an antenna discharge
unit, size of grounding conductors, location of
antenna discharge unit, connection to grounding
electrodes and requirements for the grounding
electrode. Antenna grounding according to the
National Electrical Code, ANSI/NFPA 70
Warning! Safety instructions
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC
SHOCK DO NOT REMOVE COVER (OR BACK).
NO USER SERVICEABLE PARTS INSIDE. REFER TO
QUALIFIED SERVICE PERSONNEL.
The symbol is intended to alert the user to
the presence of uninsulated dangerous
voltage within the product’s enclosure that may
be of sufficient magnitude to constitute a risk of
electric shock to persons.
The symbol is intended to alert the user to
the presence of important operating and
maintenance (servicing) instructions in the
literature accompanying the device.
WARNING: TO REDUCE THE RISK OF FIRE
AND ELECTRIC SHOCK, DO NOT EXPOSE THIS
PRODUCT TO RAIN OR MOISTURE.
•TO PREVENT THE SPREAD OF FIRE, KEEP CANDLES OR
OTHER ITEMS WITH OPEN FLAMES AWAY FROM THIS
PRODUCT AT ALL TIMES.
•Do not place the TV and/or remote control in the
following environments:
-Keep the product away from direct sunlight.
-An area with high humidity such as a bathroom
-Near any heat source such as stoves and other
devices that produce heat.
-Near kitchen counters or humidifiers where they
can easily be exposed to steam or oil.
-An area exposed to rain or wind.
-Do not expose to dripping or splashing and do
not place objects filled with liquids, such as vases,
cups, etc. on or over the apparatus (e.g., on shelves
above the unit).
-Near flammable objects such as gasoline or
candles, or expose the TV to direct air conditioning.
-Do not install in excessively dusty places.
Otherwise, this may result in fire, electric shock,
combustion/ explosion, malfunction or product
deformation.

5
ENGLISH
•Grounding (Except for devices which are not
grounded.)
-TV with a three-prong grounded AC plug must be
connected to a three-prong grounded AC outlet.
Ensure that you connect the earth ground wire to
prevent possible electric shock.
•Never touch this apparatus or antenna during a
lightning storm. You may be electrocuted.
•Make sure the power cord is connected securely to
the TV and wall socket if not secured damage to the
Plug and socket may occur and in extreme cases a
fire may break out.
•Do not insert metallic or inflammable objects into
the product. If a foreign object is dropped into the
product, unplug the power cord and contact the
customer service.
•Do not touch the end of the power cord while it is
plugged in. You may be electrocuted.
•If any of the following occur, unplug the product
immediately and contact your local customer
service.
-The product has been damaged.
-If water or another substance enters the product
(like an AC adapter, power cord, or TV).
-If you smell smoke or other odors coming from
the TV.
-When lightning storms or when unused for long
periods of time.
Even the TV is turned off by remote control or
button, AC power source is connected to the unit if
not unplugged in.
•Do not use high voltage electrical equipment near
the TV (e.g., a bug zapper). This may result in product
malfunction.
•Do not attempt to modify this product in any way
without written authorization from LG Electronics.
Accidental fire or electric shock can occur. Contact
your local customer service for service or repair.
Unauthorized modification could void the user’s
authority to operate this product.
•Use only an authorized attachments / accessories
approved by LG Electronics. Otherwise, this may
result in fire, electric shock, malfunction, or product
damage.
•Never disassemble the AC adapter or power cord.
This may result in fire or electric shock.
•Handle the adapter carefully to avoid dropping or
striking it. An impact could damage the adapter.
•To reduce the risk of fire or electrical shock, do not
touch the TV with wet hands. If the power cord
prongs are wet or covered with dust, dry the power
plug completely or wipe dust off.
•Batteries (Depending upon model)
-Store the accessories (battery, etc.) in a safe
location out of the reach of children.
-Do not short circuit, disassemble, or allow the
batteries to overheat. Do not dispose of batteries
in a fire. Batteries should not be exposed to
excessive heat.
-Caution: Risk of fire or explosion if the battery is
replaced by an incorrect type.
•Moving
-When moving, make sure the product is turned off,
unplugged, and all cables have been removed. It
may take 2 or more people to carry larger TVs. Do
not press or put stress on the front panel of the TV.
Otherwise, this may result in product damage, fire
hazard or injury.
•Keep the packing anti-moisture material or vinyl
packing out of the reach of children.
•Do not allow an impact shock, any objects to fall
into the product, and do not drop anything onto the
screen.
•Do not press strongly upon the panel with a hand or
a sharp object such as a nail, pencil, or pen, or make
a scratch on it. It may cause damage to screen.
•Cleaning
-When cleaning, unplug the power cord and wipe
gently with a soft/dry cloth. Do not spray water or
other liquids directly on the TV. Do not clean your
TV with chemicals including glass cleaner, any type
of air freshener, insecticide, lubricants, wax (car,
industrial), abrasive, thinner, benzene, alcohol etc.,
which can damage the product and/or its panel.
Otherwise, this may result in electric shock or
product damage.

6
ENGLISH
Preparing
•When the TV is turned on for the first time after
being shipped from the factory, initialization of the
TV may take approximately one minute.
•Image shown may differ from your TV.
•Your TV’s OSD (On Screen Display) may differ slightly
from that shown in this manual.
•The available menus and options may differ from the
input source or product model that you are using.
•New features may be added to this TV in the future.
•The device must be easily accessed to a location
outlet near the access. Some devices are not made
by turning on / off button, turning off the device and
unplugging the power cord.
•The items supplied with your product may vary
depending upon the model.
•Product specifications or contents of this manual
may be changed without prior notice due to
upgrade of product functions.
•For an optimal connection, HDMI cables and
USB devices should have bezels less than 10mm
(0.39inches) thick and 18mm (0.7inches) width.
•Use an extension cable that supports USB 2.0 if the
USB cable or USB flash drive does not fit into your
TV’s USB port.
•Use a certified cable with the HDMI logo attached.
If you do not use a certified HDMI cable, the screen
may not display or a connection error may occur.
•Recommended HDMI cable types
• High Speed HDMI®/™ cable
• High Speed HDMI®/™ cable with Ethernet
A
B
A
B
* A 10mm
(0.39inches)
* B 18mm
(0.7inches)
•Do not use any unapproved items to ensure the
safety and lifespan of the product.
•Any damages or injuries by using unapproved items
are not covered by the warranty.
Optional Extras
Optional extras can be changed or modified for quality
improvement without any notification. Contact your
dealer for buying these items.
These devices work only with certain models.
The model name or design may be changed due to
the manufacturer’s circumstances or policies.
(Depending upon model)
AC/DC Adapter
AM-PW18BA
Wall Mounting Bracket
Make sure to use screws and wall mounts that meet
the VESA standard. Standard dimensions for the wall
mount kits are described in the following table.
Model 15LN766A
15LN766F
VESA (A x B) 75 x 75
Standard screw M4
Number of screws 4
Wall mount bracket
(optional) LSW140B

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ENGLISH
Lifting and Moving the TV
When moving or lifting the TV, read the following to
prevent the TV from being scratched or damaged and
for safe transportation regardless of its type and size.
•It is recommended to move the TV in the box or
packing material that the TV originally came in.
•Before moving or lifting the TV, disconnect the
power cord and all cables.
•When holding the TV, the screen should face away
from you to avoid damage.
•Hold the top and bottom of the TV frame firmly.
Make sure not to hold the transparent part, speaker,
or speaker grille area.
•Use at least two people to move a large TV.
•When transporting the TV by hand, hold the TV as
shown in the following illustration.
•When transporting the TV, do not expose the TV to
jolts or excessive vibration.
•When transporting the TV, keep the TV upright;
never turn the TV on its side or tilt towards the left
or right.
•Avoid touching the screen at all times, as this
may result in damage to the screen.
•Do not place the product on the floor with
its front facing down without padding.
Failure to do so may result in damage to the
screen.
•Do not move the TV by holding the cable
holders, as the cable holders may break, and
injuries and damage to the TV may occur.
(Depending upon model)
•When attaching to the TV set, place the
screen facing down on a cushioned table
or flat surface to protect the screen from
scratches.

8
ENGLISH
Securing TV to the Wall
(Depending upon model)
1 Insert and tighten the eye-bolts or TV brackets and
bolts on the back of the TV.
-If there are bolts inserted at the eye-bolts position,
remove the bolts first.
2 Mount the wall brackets with the bolts to the wall.
Match the location of the wall bracket and the eye-
bolts on the rear of the TV.
3 Connect the eye-bolts and wall brackets tightly with
a sturdy rope or cable. Make sure to keep the rope
parallel to the flat surface.
•Use a platform or cabinet that is strong and large
enough to support the TV securely.
•Brackets, bolts, and ropes are optional. You can
obtain additional accessories from your local dealer.
•Do not apply foreign substances (oils,
lubricants, etc.) to the screw parts when
assembling the product. (Doing so may
damage the product.)
•Do not use any unapproved items to ensure
the safety and product life span.
•Any damage or injuries caused by using
unapproved items are not covered by the
warranty.
•Make sure that the screws are fastened
tightly. (If they are not fastened securely
enough, the TV may tilt forward after being
installed.)
•Do not fasten the screws with excessive
force otherwise they may be worn out and
become loose.
Mounting on a Wall
An optional wall mount can be used with your LG
Television. Consult with your local dealer for a wall
mount that supports the VESA standard used by your
TV model. Carefully attach the wall mount bracket
at the rear of the TV. Install the wall mount bracket
on a solid wall perpendicular to the floor. If you are
attaching the TV to other building materials, please
contact qualified personnel to install the wall mount.
Detailed instructions will be included with the wall
mount. We recommend that you use an LG brand
wall mount. The LG wall mount is easy to adjust or to
connect the cables. When you do not use LG’s wall
mount bracket, use a wall mount bracket where the
device is adequately secured to the wall with enough
space to allow connectivity to external devices. If you
are using a non-adjustable mount, attach the mount
to the wall. Attach the cables to the TV first, then
attach the TV to the mount.
10 cm
10 cm
10 cm
10 cm
10 cm
(4inches)
(Depending upon model)

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ENGLISH
•For more information of screws and wall
mount bracket, refer to the Separate
purchase.
•If you intend to mount the product to a wall,
attach VESA standard mounting interface
(optional parts) to the back of the product.
When you install the set to use the wall
mounting bracket (optional parts), fix it
carefully so as not to drop.
•When mounting a TV on the wall, make sure
not to install the TV by hanging the power
and signal cables on the back of the TV.
•Do not install this product on a wall if it
could be exposed to oil or oil mist. This may
damage the product and cause it to fall.
Connections
You can connect various external devices to the TV.
For more information on external device’s connection,
refer to the manual provided with each device.
Antenna/Cable
Connect an antenna, cable, or cable box to watch TV
while referring to the following. The illustrations may
differ from the actual items and an RF cable is optional.
•Make sure not to bend the copper wire of the RF
cable.
Copper wire
•Complete all connections between devices, and
then connect the power cord to the power outlet to
prevent damage to your TV.
•To improve the picture quality in a poor signal area,
purchase a signal amplifier.
•Use a signal splitter to use 2 TVs or more.
•If the antenna is not installed properly, contact your
dealer for assistance.

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Other connections
Connect your TV to external devices. For the best
picture and audio quality, connect the external device
and the TV with the HDMI cable.
HDMI
•Supported HDMI Audio format:
(Depending upon model)
Dolby Digital / Dolby Digital Plus (32 kHz / 44.1 kHz
/ 48 kHz),
PCM (32 kHz / 44.1 kHz / 48 kHz / 96 kHz / 192 kHz)
•If the device connected to Input Port also
supports HDMI Deep Color, your picture may
be clearer. However, if the device doesn’t
support it, it may not work properly. In that
case, change the TV’s [HDMI Deep Color]
setting to off. (Depending upon model)
•[General] [Devices] [HDMI
Settings] [HDMI Deep Color] (Depending
upon model)
External Devices
Supported external devices are: Blu-ray player, HD
receivers, DVD players, VCRs, audio systems, USB
storage devices, PC, gaming devices, and other
external devices.
•The external device connections shown may differ
slightly from illustrations in a manual.
•Connect external devices to the TV regardless about
the order of the TV port.
•If you connect a gaming device to the TV, use the
cable supplied with the gaming device.
•Refer to the external equipment’s manual for
operating instructions.
•When connecting via a wired LAN, it is
recommended to use a CAT 7 cable.
Network setup
Wired network connection
This TV can be connected to a Pro:Centric server via
the LAN port. After making the physical connection,
the TV needs to be set up for network communication.
Connect the LAN port of the Modem or Router from
Pro:Centric server to the LAN port on the TV.
Pro:Centric Server
Broadband Modem
Pro:Centric Server
Router
Broadband Modem
Connect the LAN port of the Modem or Router to the
LAN port on the TV.
•Do not connect a modular phone cable to the LAN
port.
•Since there are various connection methods, please
follow the specifications of your telecommunication
carrier or internet service provider.

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Using the Button
You can simply operate the TV functions, using the
button.
Basic Functions
Accesses the quick menu.
Adjusts the volume level.
Mutes all sounds.
Scrolls through the saved channels.
Accesses the numeric keypad.
Enables SAP (Secondary Audio Program)
Feature.
Activates or deactivates the subtitles.
Turns the TV on or off.
Adjusting the Menu
When the TV is turned on, press the button one
time. You can adjust the Menu items using the button.
Accesses the Home menu.
Displays and removes Pro:Centric Application.
Displays the [All Settings] menu.
Accesses the TV remote menu that provides
info, guide, red, green, yellow and blue keys.
Changes the input source.
Adjusts the overall screen brightness.
Moves the quick menu.
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.
•Cannot control the TV with the remote control.
- 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.
•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.

12
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•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 TV feels cold to the touch, there may be a
small flicker when it is turned on. This is normal;
there is nothing wrong with TV. Some minute dot
defects may be visible on the screen, appearing as
tiny red, green, or blue spots. However, they have
no adverse effect on the TV’s performance. Avoid
touching the LCD screen or holding your finger(s)
against it for long periods of time. Doing so may
produce some temporary distortion effects on
the screen.
- This panel is an advanced product that contains
millions of pixels. In a very few cases, you could
see fine dots on the screen while you’re viewing
the TV. Those dots are deactivated pixels and do
not affect the performance and reliability of the
TV.
- Displaying a still image for a prolonged period
of time may cause an image sticking. Avoid
displaying a fixed image on the TV screen for a
extended length of time.
•Generated Sound
- Cracking noise A cracking noise that occurs
when watching or turning off the TV is generated
by plastic thermal contraction due to temperature
and humidity. This noise is common for products
where thermal deformation is required.
- Electrical circuit humming/panel buzzing
A low level noise is generated from a high-
speed switching circuit, which supplies a large
amount of current to operate a product. It varies
depending upon the product. This generated
sound does not affect the performance and
reliability of the product.
•When cleaning the product, be careful not
to allow any liquid or foreign objects to
enter the gap between the upper, left or
right side of the panel and the guide panel.
(Depending upon model)
•Make sure to wring any excess water or
cleaner from the cloth.
•Do not spray water or cleaner directly onto
the TV screen.
•Make sure to spray just enough of water or
cleaner onto a dry cloth to wipe the screen.