LG 55LA7900 User manual

www.lg.com
Please read this manual carefully before operating
your set and retain it for future reference.
OWNER’S MANUAL
LED TV
* LG LED TV refers to an LCD screen with LED backlights.
55LA9600
47LA8600
55LA8600
60LA8600
55LA7900

ENGLISH
2SAFETY INSTRUCTIONS
WARNING
yDo not place the TV and/or remote
control in the following environments:
- A location exposed to 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
- Near containers of water such as
vases
Otherwise, this may result in fire,
electric shock, malfunction or
product deformation.
yDo not place the product where it
might be exposed to dust. This may
cause a fire hazard.
yMains Plug is the TV connecting/
disconnecting device to AC mains
electric supply. This plug must remain
readily attached and operable when TV
is in use.
yDo not touch the power plug with wet
hands. Additionally, if the cord pin
is wet or covered with dust, dry the
power plug completely or wipe dust
off. You may be electrocuted due to
excess moisture.
yMake sure to connect Mains cable
to compliant AC mains socket with
Grounded earth pin. (Except for
devices which are not grounded on
earth.) Otherwise possibility you may
be electrocuted or injured.
yInsert power cable plug completely
into wall socket otherwise if not
secured completely into socket, fire
ignition may break out.
yEnsure the power cord does not come
into contact with hot objects such as
a heater. This may cause a fire or an
electric shock hazard.
yDo not place a heavy object, or the
product itself, on power cables.
Otherwise, this may result in fire or
electric shock.
yBend antenna cable between inside
and outside building to prevent rain
from flowing in. This may cause water
damaged inside the Product and could
give an electric shock.
yWhen mounting TV onto wall make
sure to neatly install and isolate
cabling from rear of TV as to not
create possibility of electric shock / fire
hazard.
yDo not plug too many electrical
devices into a single multiple electrical
outlet. Otherwise, this may result in
fire due to over-heating.
yDo not drop the product or let it
fall over when connecting external
devices. Otherwise, this may result in
injury or damage to the product.
Desiccant
yKeep the anti-moisture packing
material or vinyl packing out of the
reach of children. Anti-moisture
material is harmful if swallowed. If
swallowed by mistake, force the
patient to vomit and visit the nearest
hospital. Additionally, vinyl packing can
cause suffocation. Keep it out of the
reach of children.
yDo not let your children climb or cling
onto the TV. Otherwise, the TV may
fall over, which may cause serious
injury.
yDispose of used batteries carefully
to ensure that a small child does not
consume them. Please seek Doctor-
Medical Attention immediately if child
consumes batteries.
yDo not insert any metal objects/
conductors (like a metal chopstick/
cutlery/ screwdriver) between power
cable plug and input Wall Socket while
it is connected to the input terminal on
the wall. Additionally, do not touch the
power cable right after plugging into
the wall input terminal. You may be
electrocuted. (Depending on model)
yDo not put or store inflammable
substances near the product. There
is a danger of combustion/explosion
or fire due to careless handling of the
inflammable substances.
yDo not drop metallic objects such as
coins, hair pins, chopsticks or wire into
the product, or inflammable objects
such as paper and matches. Children
must pay particular attention. Electrical
shock, fire or injury can occur. If a
foreign object is dropped into the
product, unplug the power cord and
contact the service centre.
yDo not spray water on the product or
scrub with an inflammable substance
(thinner or benzene). Fire or electric
shock accident can occur.
yDo not allow any impact, shock or any
objects to fall into the unit, and do not
drop anything onto the screen. You
may be injured or the product can be
damaged.
SAFETY INSTRUCTIONS
Please read these safety precautions carefully before using the product.

ENGLISH
3
SAFETY INSTRUCTIONS
yNever touch this product or antenna
during a thunder or lighting storm. You
may be electrocuted.
yNever touch the wall outlet when
there is leakage of gas, open the
windows and ventilate. It may cause a
fire or a burn by a spark.
yDo not disassemble, repair or modify
the product at your own discretion.
Fire or electric shock accident can
occur. Contact the service centre for
check, calibration or repair.
yIf any of the following occur, unplug
the product immediately and contact
your local service centre.
- The product has been impacted by
shock
- The product has been damaged
- Foreign objects have entered the
product
- The product produced smoke or a
strange smell
This may result in fire or electric
shock.
yUnplug the TV from AC mains wall
socket if you do not intend to use
the TV for a long period of time.
Accumulated dust can cause fire
hazard and insulation deterioration can
cause electric leakage/shock/fire.
yApparatus shall not be exposed to
dripping or splashing and no objects
filled with liquids, such as vases, shall
be placed on the apparatus.
CAUTION
yInstall the product where no radio wave
occurs.
yThere should be enough distance
between an outside antenna and power
lines to keep the former from touching
the latter even when the antenna falls.
This may cause an electric shock.
yDo not install the product on places
such as unstable shelves or inclined
surfaces. Also avoid places where there
is vibration or where the product cannot
be fully supported. Otherwise, the
product may fall or flip over, which may
cause injury or damage to the product.
yIf you install the TV on a stand, you need
to take actions to prevent the product
from overturning. Otherwise, the
product may fall over, which may cause
injury.
yIf 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.
yOnly use the attachments / accessories specified by the
manufacturer.
yWhen installing the antenna, consult a
qualified service man. This may create a
fire hazard or an electric shock hazard.
yWe recommend that you maintain a
distance of at least 2 to 7 times the
diagonal screen size when watching
TV. If you watch TV for a long period of
time, this may cause blurred vision.
yOnly use the specified type of battery.
This could cause damage to the remote
control.
yDo not mix new batteries with old
batteries. This may cause the batteries
to overheat and leak.
yUsed batteries including rechargeable
battery must be collected separately and
recycled.
yMake sure there are no objects between
the remote control and its sensor.
ySignal from Remote Control can be
interrupted due to external/internal
lighting eg Sunlight, fluorescent lighting.
If this occurs turn off lighting or darken
viewing area.
yWhen connecting external devices such
as video game consoles, make sure
the connecting cables are long enough.
Otherwise, the product may fall over,
which may cause injury or damage the
product.
yDo not turn the product On/Off by
plugging-in or unplugging the power
plug to the wall outlet. (Do not use the
power plug for switch.) It may cause
mechanical failure or could give an
electric shock.
yPlease follow the installation instructions
below to prevent the product from
overheating.
- The distance between the product and
the wall should be more than 10 cm.
- Do not install the product in a place
with no ventilation (e.g., on a
bookshelf or in a cupboard).
- Do not install the product on a carpet
or cushion.
- Make sure the air vent is not blocked
by a tablecloth or curtain.
Otherwise, this may result in fire.
yTake care not to touch the ventilation
openings when watching the TV for long
periods as the ventilation openings may
become hot. This does not affect the
operation or performance of the product.
yPeriodically examine the cord of your appliance, and if its
appearance indicates damage or deterioration, unplug it,
discontinue use of the appliance, and have the cord replaced
with an exact replacement part by an authorized servicer.
yPrevent dust collecting on the power
plug pins or outlet. This may cause a fire
hazard.
yProtect 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 appliance.

ENGLISH
4SAFETY INSTRUCTIONS
yDo not press strongly upon the panel
with a hand or sharp object such as nail,
pencil or pen, or make a scratch on it, as
it may cause damage to screen.
yAvoid touching the screen or holding
your finger(s) against it for long periods
of time. Doing so may produce some
temporary or permanent distortion/
damage to screen.
yWhen cleaning the product and its
components, unplug the power first
and wipe it with a soft cloth. Applying
excessive force may cause scratches or
discolouration. Do not spray with water
or wipe with a wet cloth. Never use
glass cleaner, car or industrial shiner,
abrasives or wax, benzene, alcohol etc.,
which can damage the product and its
panel. Otherwise, this may result in
fire, electric shock or product damage
(deformation, corrosion or breakage).
yAs long as this unit is connected to the AC wall outlet, it is
not disconnected from the AC power source even if you turn
off this unit by SWITCH.
yWhen unplugging the cable, grab the
plug and unplug it, by pulling at the
plug. Don’t pull at the cord to unplug the
power cord from the power board, as
this could be hazardous.
yWhen moving the product, make sure
you turn the power off first. Then,
unplug the power cables, antenna
cables and all connecting cables. The
TV set or power cord may be damaged,
which may create a fire hazard or cause
electric shock.
yWhen moving or unpacking the product,
work in pairs because the product is
heavy. Otherwise, this may result in
injury.
yContact the service centre once a year
to clean the internal parts of the product.
Accumulated dust can cause mechanical
failure.
yRefer 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.
yIf 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.
yThe panel is a high technology display
product with resolution of two million
to six million pixels. You may see tiny
black dots and/or brightly coloured dots
(red, blue or green) at a size of 1 ppm
on the 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.
yYou 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.
yDisplaying a still image (e.g., broadcasting channel logo, on-
screen menu, scene from a video game) for a prolonged time
may cause damage to the screen, resulting in retention of the
image, which is known as image sticking. The warranty does
not cover the product for image sticking.
Avoid displaying a fixed image on your television’s screen for
a prolonged period (2 or more hours for LCD, 1 or more hours
for Plasma). Also, if you watch the TV at a ratio of 4:3 for a
long time, image sticking may occur on the borders of the
panel. This phenomenon also occurs in third-party products
and is not subject to exchange or refund.
yGenerated Sound
“Cracking” noise: A cracking noise that occurs when
watching or turning off the TV is generated by plastic thermal
contraction due to tempera-ture 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 on the product. This generated sound does
not affect the performance and reliability of the product.
WARNING
If you ignore the warning message, you may be
seriously injured or there is a possibility of accident
or death.
CAUTION
If you ignore the caution message, you may be
slightly injured or the product may be damaged.
NOTE
The note helps you understand and use the product
safely. Please read the note carefully before using
the product.

ENGLISH
5
SAFETY INSTRUCTIONS
Viewing 3D Imaging
WARNING
Viewing Environment
yViewing Time
- When watching 3D content, take 5 - 15 minute
breaks every hour. Viewing 3D content for a long
period of time may cause headache, dizziness,
fatigue or eye strain.
Those that have a photosensitive seizure or
chronic illness
ySome users may experience a seizure or other
abnormal symptoms when they are exposed to a
flashing light or particular pattern from 3D content.
yDo not watch 3D videos if you feel nauseous,
are pregnant and/ or have a chronic illness such
as epilepsy, cardiac disorder, or blood pressure
disease, etc.
y3D Content are not recommended for those who
suffer from stereo blindness or stereo anomaly.
Double images or discomfort in viewing may be
experienced.
yIf you have strabismus (cross-eyed), amblyopia
(weak eyesight) or astigmatism, you may have
trouble sensing depth and easily feel fatigue due to
double images. It is advised to take frequent breaks
than the average adult.
yIf your eyesight varies between your right and left
eye, revise your eyesight prior to watching 3D
content.
Symptoms which require discontinuation or
refraining from watching 3D content
yDo not watch 3D content when you feel fatigue
from lack of sleep, overwork or intoxication .
yWhen these symptoms are experienced, stop using/
watching 3D content and get enough rest until the
symptom subsides.
- Consult your doctor when the symptoms persist.
Symptoms may include headache, eyeball
pain, dizziness, nausea, palpitation, blurriness,
discomfort, double image, visual inconvenience or
fatigue.
CAUTION
Viewing Environment
yViewing Distance
- Maintain a distance of at least twice the screen
diagonal length when watching 3D content.
If you feel discomfort in viewing 3D content,
move further away from the TV.
Viewing Age
yInfants / Children
- Usage/ Viewing 3D content for children under the
age of 5 is prohibited.
- Children under the age of 10 may overreact and
become overly excited because their vision is in
development. For example: trying to touch the
screen or trying to jump into it. Special monitoring
and extra attention is required for children watching
3D content.
- Children have greater binocular disparity of 3D
presentations than adults because the distance
between the eyes is shorter than one of adults.
Therefore they will perceive more stereoscopic
depth compared to adults for the same 3D image.
yTeenagers
- Advise teenagers under the age of 19 not to watch
3D videos for a long time when they are tired.
yElderly
- The elderly may perceive less of a 3D effect than
the youth. Do not sit closer to the TV than the
recommended distance.
Cautions when using the 3D glasses
yMake sure to use LG 3D glasses. Otherwise, you
may not be able to view 3D videos properly.
yDo not use 3D glasses instead of your normal
glasses, sunglasses or protective goggles.
yUsing modified 3D glasses may cause eye strain or
image distortion.
yDo not keep your 3D glasses in extremely high or
low temperatures. It will cause deformation.
yThe 3D glasses are fragile and are easy to
scratched. Use a soft, clean piece of cloth when
wiping the lenses. Do not scratch the lenses of the
3D glasses with sharp objects or clean/wipe them
with chemicals.

ENGLISH
6LICENSES / OPEN SOURCE SOFTWARE NOTICE
LICENSES
Supported licenses may differ by model. For more information about licenses, visit ‘www.lg.com’.
Manufactured under license from Dolby Laboratories. “Dolby” and the double-D symbol are
trademarks of Dolby Laboratories.
The terms HDMI and HDMI High-Definition Multimedia Interface, and the HDMI logo are
trademarks or registered trademarks of HDMI Licensing LLC in the United States and other
countries.
ABOUT DIVX VIDEO: DivX®is a digital video format created by DivX, LLC, a subsidiary of Rovi
Corporation. This is an official DivX Certified®device that plays DivX video. Visit divx.com for
more information and software tools to convert your files into DivX video.
ABOUT DIVX VIDEO-ON-DEMAND: This DivX Certified®device must be registered in order to
play purchased DivX Video-on-Demand (VOD) movies. To obtain your registration code, locate
the DivX VOD section in your device setup menu. Go to vod.divx.com for more information on
how to complete your registration.
“DivX Certified®to play DivX®video up to HD 1080p, including premium content.”
“DivX®, DivX Certified®and associated logos are trademarks of Rovi Corporation or its
subsidiaries and are used under license.”
“Covered by one or more of the following U.S. patents:
7,295,673; 7,460,668; 7,515,710; 7,519,274”
Manufactured under license under U.S. Patent Nos: 5,956,674; 5,974,380; 6,487,535 & other
U.S. and worldwide patents issued & pending. DTS, the Symbol & DTS and the Symbol
together are registered trademarks & DTS 2.0+Digital Out is a trademark of DTS, Inc. Product
includes software. © DTS, Inc. All Rights Reserved.
OPEN SOURCE SOFTWARE NOTICE
To obtain the source code under GPL, LGPL, MPL and other open source licenses, that is contained in this product,
please visit ‘http://opensource.lge.com’.
In addition to the source code, all referred license terms, warranty disclaimers and copyright notices are available for
download.
LG Electronics will also provide open source code to you on CD-ROM for a charge covering the cost of performing such
distribution (such as the cost of media, shipping and handling) upon email request to ‘[email protected]’. This offer
is valid for three (3) years from the date on which you purchased the product.

ENGLISH
7
TABLE OF CONTENTS
TABLE OF CONTENTS
2 SAFETY INSTRUCTIONS
5 Viewing 3D Imaging
6 LICENSES
6 OPEN SOURCE SOFTWARE NOTICE
7 TABLE OF CONTENTS
8 INSTALLATION PROCEDURE
8 ASSEMBLING AND PREPARING
8 Unpacking
11 Optional Extras
12 Parts and Buttons
14 Lifting and moving the TV
15 Setting up the TV
15 - Attaching the stand
17 - Mounting on a table
18 - Tidying cables
19 - Mounting on a wall
20 Using Built-in Camera
20 - Preparing Built-in Camera
20 - Name of Parts for the Built-In Camera
21 - Checking the Camera’s Shooting Range
22 MAKING CONNECTIONS
22 Connecting to an antenna or cable
23 Connecting to a HD receiver, DVD Player, or
VCR
23 - HDMI Connection
24 - DVI to HDMI Connection
25 - Connecting to a mobile phone
26 - Component Connection
27 - Composite Connection
28 Connecting to a PC
28 - HDMI Connection or DVI to HDMI
Connection
30 Connecting to an Audio System
30 - Digital Optical Audio Connection
31 Connecting Headphones
31 Connecting a USB Drive
32 MAGIC REMOTE CONTROL
FUNCTIONS
33 Registering Magic Remote Control
33 How to use Magic Remote Control
33 Precautions to Take when Using the Magic
Remote Control
34 REMOTE CONTROL
36 USING THE USER GUIDE
37 SPECIFICATIONS
41 EXTERNAL CONTROL DEVICE SETUP
42 MAINTENANCE
42 Cleaning Your TV
42 - Screen, frame, cabinet and stand
42 - Power cord
42 TROUBLESHOOTING
yImage shown may differ from your TV.
yYour TV’s OSD (On Screen Display) may differ
slightly from that shown in this manual.
yThe available menus and options may differ from
the input source or product model that you are
using.
yNew features may be added to this TV in the
future.
NOTE

ENGLISH
8INSTALATION PROCEDURE / ASSEMBLING AND PREPARING
INSTALLATION PROCEDURE
1Open the package and make sure all the accessories are included.
2Attach the stand to the TV set.
3Connect an external device to the TV set.
4Make sure the network connection is available.
You can use the TV network functions only when the network connection is made.
ASSEMBLING AND PREPARING
Unpacking
Check your product box for the following items. If there are any missing accessories, contact the local dealer where you
purchased your product. The illustrations in this manual may differ from the actual product and item.
yDo not use any unapproved items to ensure the safety and product life span.
yAny damages or injuries by using unapproved items are not covered by the warranty.
yIn case of some model, the thin film on screen is a part of TV, So don’t take it off.
CAUTION
yThe items supplied with your product may vary depending on the model.
yProduct specifications or contents of this manual may be changed without prior notice due to upgrade of product
functions.
yFor an optimal connection, HDMI cables and USB devices should have bezels less than 10 mm thick and 18 mm
width.
yUse an extension cable that supports USB 2.0 if the USB cable or USB memory stick does not fit into your TV’s
USB port.
B
AA
B
*A
≤
10 mm
*B
≤
18 mm
NOTE

ENGLISH
9
ASSEMBLING AND PREPARING
Magic Remote Control,
Batteries (AA)
(See p. 32)
Remote control and Batteries
(AAA)
(See p. 34)
Owner’s Manual
Tag On
Stand Screws
8 EA, M4 x 14
(See p. 15)
Stand Base, Stand Body
(See p. 15)
Tag On
Cinema 3D Glasses
The number of 3D glasses may
differ depending on the model
or country.
Component video cable
(See p. 26)
Composite video cable
(See p. 26, 27)
Cable Holder
(See p. 18)
Cable Management
2 EA
(See p. 18)
Power Cord
FREEZE
RATIO
L/R SELECT
ENTER
BACK EXIT
Q.MENU
INFO
MENU
CHVOL
P
A
G
E
FAV
3D
MUTE
1 2 3
4 5 6
7 8
0
9
MARK
LIST
FLASHBK
ENERGY
SAVING
TV
AVMODE INPUT
For LA7900 series

ENGLISH
10 ASSEMBLING AND PREPARING
Magic Remote Control,
Batteries (AA)
(See p. 32)
Remote control,
Batteries (AAA)
(See p. 34)
Owner’s Manual
Cable Holder
(See p. 18)
Stand Base
(See p. 16)
Power Cord
(For LA8600 series) (For LA9600 series)
Tag On
Tag On
(Depending on model)
Stand Screws
4 EA, M4 x 16
(See p. 16)
Stand Screws
4 EA, M4 x 20
(See p. 16)
Component video cable
(See p. 26)
Composite video cable
(See p. 26, 27)
Cinema 3D Glasses
The number of 3D glasses may
differ depending on the model
or country.
FREEZE
RATIO
L/R SELECT
ENTER
BACK EXIT
Q.MENU
INFO
MENU
CHVOL
P
A
G
E
FAV
3D
MUTE
1 2 3
4 5 6
7 8
0
9
MARK
LIST
FLASHBK
ENERGY
SAVING
TV
AVMODE INPUT
For LA8600, LA9600 series