LG 47GA7900-UA, 55GA7900, 55GA7900-UA, 55GA6450, 55GA6450-UD Owner's Manual

Life's Good

_i iiiii ii i_

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LED

LG LED TV applies LCD screen with LED backlights.

Please read this manual carefully before operating your set and retain it

for future reference.

GA6400 Series GA6450 Series GA7900 Series

P/NO : MFL67468182 (1302-REV01) www.lg.com

2 TABLE OF CONTENTS

TABLE OF CONTENTS

2 TABLE OF CONTENTS

3 IMPORTANT SAFETY INSTRUCTIONS
7 Viewing 3D Imaging

9 LICENSES

10 INSTALLATION PROCEDURE

10 ASSEMBLING AND PREPARING

10 Unpacking
13 Optional Extras

14 Parts and Buttons
15 Lifting and moving the TV

16 Setting up the TV
16 - Attaching the stand
18 - Mounting on a table
19 - Mounting on a wall
20 - Tidying cables

21 MAKING CONNECTIONS

21 Connecting to an antenna or cable
22 Network connection

22 - Wireless Network Connection
22 - Wired Network Connection
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 a PC
28 - HDMI Connection or DVI to HDMI Con-

nection.
30 Connecting to an Audio System
30 - Digital Optical Audio Connection

31 Connecting to a Headphone
31 Connecting a USB Device
32 Using IR Blaster

33 REMOTE CONTROL

33 Inserting batteries
36 Registering the remote control
36 How to use the zoom in/out gestures
36 Voice Search for Google TV
36 Precautions to take when using the remote

control

37 WATCHING TV
37 Turning the TV on for the first time

37 Setting the Mode

38 TROUBLESHOOTING

38 OPEN SOURCE SOFTWARE NOTICE

39 SPECIFICATIONS

41 MAINTENANCE
41

41
41

Cleaning Your TV

- Screen, frame, cabinet and stand

- Power cord

@ NOTE

* 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.

IMPORTANT SAFETY INSTRUCTIONS 3

IMPORTANT SAFETY INSTRUCTIONS

Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your

prod uct.

WARNING/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 lightning flash with arrowhead symbol,

within an equilateral triangle, 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 exclamation point within an equilateral

triangle is intended to alert the user to the

presence of important operating and
maintenance (servicing)instructions in the literature

accompanying the appliance.

WARNING/CAUTION

-TO REDUCE THE RiSK OF FiRE AND ELECTRIC
SHOCK, DO NOT EXPOSE THIS PRODUCT TO

RAiN OR MOISTURE.

A WARNING

tf you ignore the warning message, you may be
seriously injured or there isa possibility of accident

or death.

._\ CAUTION

tf 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

safety. Please read the note carefully before using

the product.

WARNING: This product contains chemicals known
to the State of California to cause cancer and birth

defects or other reproductive harm.
Wash hands after handling.

Read these instructions.
Keep these instructions.

Heed all warning£.
Follow all instructions.

Do not use this apparatus near water.

Clean only with a 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 (Can differ by
country).

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.

4 IMPORTANT SAFETY INSTRUCTIONS

Protect the power cord from being walked on
or pinched particularly at plugs, convenience
receptacles, and the point where they exit from the
apparatus.

d

Only use attachments/accessories specified by the
manufacturer.

Use only with a 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.

CAUTION concerning the Power Cord
(Can differ by country):
It is recommended that appliances be placed upon a
dedicated circuit; that is, a single outlet circuit which
powers only that appliance and has no additional
outlets or branch circuits. Check the specification
page of this owner's manual to be certain. Do
not connect too many appliances to the same AC
power outlet as this could result in fire or electric

shock. Do not overload wail outlets. Overloaded
walt outlets, loose or damaged wall outlets,

extension cords, frayed power cords, or damaged or
cracked wire insulation are dangerous. Any of these

conditions could result in electric shock or fire.
Periodically 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 service. Protect the power cord
from physical or mechanical abuse, such as being
twisted, kinked, pinched, closed in a door, or walked
upon. Payparticular attention to ptugs, wall outlets,
and the point where the cord exits the appliance. Do
not move the TV with the power cord plugged in.
Do not use a damaged or loose power cord. Be sure
do grasp the plug when unplugging the power cord.
Do not pull on the power cord to unplug the TV.

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.

Warning -To reduce the risk of fire or electrical
shock, do not expose this product to rain, moisture
or other liquids. Do not touch the TV with wet
hands. Do not install this product near flammable
objects such as gasoline or candles, or expose the
TV to direct air conditioning.

Do not stick metal objects or any other conductive
material into the power cord. Do not touch the end
of the power cord while it is plugged in.
Keep the packing anti-moisture 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.

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).

IMPORTANT SAFETY INSTRUCTIONS .5

Grounding
(Except for devices which are not grounded.)
Ensure that you connect the earth ground wire to
prevent possible electric shock (i.e. a TV with a
three-prong grounded AC plug must be connected
to a three-prong grounded AC outlet). If grounding
methods are not possible, have a qualified
electrician install a separate circuit breaker. Do not
try to ground the unit by connecting it to telephone
wires, lightening rods, or gas pipes.

Supply

As long as this unit is connected to the AC walt
outlet, it is not disconnected from the AC power

source even if the unit is turned off.
Do not attempt to modify this product in any way

without written authorization from LG Electronics.
Unauthorized modification could void the user's

authority to operate this product.
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 so as 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, ANSl/NFPA 70

Antenna Discharge Unit

(NED Section 810-20)

Grounding Conductor

Ground Clamp (NED Section 810-21)

Power Service Grounding
Electrode System

NEC: National Electrical Code

(NED Art 250 r Part H)

Cleaning
When cleaning, unplug the power cord and wipe
gently with a soft cloth to prevent scratching. Do
not spray water or other liquids directly on the TV
as electric shock may occur. Do not clean with

chemicals such as alcohol, thinners or benzine.

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.

Ventilation

Install your TV where there is proper ventilation. Do
not instalt in a confined space such as a bookcase.

Do not cover the product with cloth or other
materials while plugged. Do not install in excessively
dusty places.

If you smell smoke or other odors coming from
the TV, unplug the power cord and contact an

authorized service center.

Keep the product away from direct sunlight.

Never touch this apparatus or antenna during a
thunder or lightning storm.
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 allow an impact shock or any objects to fan
into the product, and do not drop anything onto the

screen.

Disconnecting the Main Power
The power outlet used with this device must remain
easily accessible.
Store the accessories (battery, etc.) in a safe

location out of the reach of children.
This apparatus use batteries. In your community

there might be regulations that require you
to dispose of these batteries properly due to
environmental considerations. Please contact your

local authorities for disposal or recycling information.

Do not dispose of batteries in a fire.

Do not short circuit, disassemble or allow the
batteries to overheat.

6 IMPORTANT SAFETY INSTRUCTIONS

Dot Defect

The Plasma or LCD panel is a high technology

product with resolution of two million to six million
pixets. 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.

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 on the
product.

This generated sound does not affect the

performance and reliability of the product.

Take care not to touch the ventilation openings.

When watching the TV for a long period, the
ventilation openings may become hot. This does
not affect the performance of the product or cause
defects in the product.
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.

If a fixed image displays on the TV screen for a long
period of time, it wilt 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 (2or more hours for LCD, 1
or more hours for the Plasma TV) to prevent image

burn.

For USA and Canada

This equipment has been tested and found to
comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection
against harmful interference in a residential
installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may

cause harmful interference to radio communications.

However, there is no guarantee that interference
will not occur in a particular installation. If this
equipment does cause harmful interference to radio
or television reception, which can be determined
by turning the equipment off and on, the user is
encouraged to try to correct the interference by one
or more of the following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the
equipment and the receiver.

- Connect the equipment to an outlet on a circuit
different from that to which the receiver is

connected.

- Consult the dealer or an experienced radioFV
technician for help.

This device complies with part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference
and (2) this device must accept any interference
received, including interference that may cause

undesired operation of the device.
Any changes or modifications in construction of
this device which are not expressly approved by
the party responsible for compliance could void the

user's authority to operate the equipment.

This reminder is provided to calt the CATV system
installer's attention to Article 820-40 of the National

Electric Code (U.S.A.). The code provides guidelines
for proper grounding and, in particular, specifies
that the cable ground shall be connected to the
grounding system of the building, as close to the
point of the cable entry as practical.

IMPORTANT SAFETY INSTRUCTIONS "7

Viewing 3D Imaging

_ WARNING

Viewing 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.

Some users may experience a seizure or other abnormal symptoms when they are exposed to a flashing light or
particular pattern from 3D content.
Do not watch 3D content if you feet nauseous, are pregnant and/or have a chronic illness such as epilepsy, cardiac
disorder, or blood pressure disease, etc.
3D Content are not recommended for those who suffer from stereo blindness or stereo anomaly. Double images or
discomfort in viewing may be experienced.
If 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.

, If your eyesight varies between your right and left eye, revise your eyesight prior to watching 3D contents.

Do not watch 3D contents when you feet fatigue from lack of sleep, overwork or drinking.
When 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.

8 IMPORTANT SAFETY INSTRUCTIONS

_ CAUTION

Viewing 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.

Infants / Children

- Usage/Viewing 3D content for children under the age of 5 are 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 the' will perceive more stereoscopic depth compared to adults for the same

3D image.

Teenagers

-Teenagers under the age of 19 may experience eye strain when watching 3D video. Advise them not to watch 3D
videos for a long time when they are tired.

Elderly

- The elderly may perceive less of a 3D effect than the youth. Do not sit closer to the TV than the recommended
distance.

Make sure to use LG 3D glasses. Otherwise, you may not be able to view 3D videos properly.
Do not use 3D glasses instead of your normal glasses, sunglasses or protective goggles.
Using modified 3D glasses may cause eye strain or image distortion.
Do not keep your 3D glasses in extremely high or low temperatures. It will cause deformation.
The 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.

LICENSES 9

LICENSES

Supported licenses may differ by model. For more information about licenses, visit www.lg.com.

[_ DOLB¥

DIGITAL PLUS

Manufactured under license from Dolby Laboratories. "Dolby" and the double-D symbol are

trademarks of Dolby Laboratories.

IMIII: N IIII

HIGH-D_I_mO_M_L_IMEDIAI_T_AC_

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.

2.0+DigitalOut

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.

10 INSTALLATION PROCEDURE / ASSEMBLING AND PREPARING

INSTALLATION PROCEDURE

1 Open the package and make sure all the accessories are included.

2 Attach the stand to the TV set.

3 Connect an external device to the TV set.

4 Make sure the network connection is available.

You can use the TV network functions only when the network connection is made.

ASSEMBLING AND PREPARING

Unpacking

Checkyour product box for the following items. Ifthere areany missing accessories, contact the local dealerwhere you
purchasedyour product. The illustrations in this manualmaydiffer from the actualproduct and item.

CAUTION

Do not use any unapproved items to ensure the safety and product life span.
Any damages or injuries by using unapproved items are not covered by the warranty.
Some models appear to have a thin film on the screen. It is actually part of the screen, do not

remove it.

- @ NOTE

* The items supplied with your product may vary depending on 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 memory stick does not fit

into your TV's USB port.

_A_ 10 mm (0.39 inches)
_B_ 18 rnm (0.7 inches)

ASSEMBLgNGANDPREPARING11

QWERTY Remote Control,
Batteries (AA)

(See p.33)

Owner's Manual,
CD Manual

Power Cord

Cinema 3D Glasses

Stand Base, Stand Body

(See p.16)

Stand Screws

8 EA, M4 x 14

(See p.16)

Wall Mount Inner Spacers
4 EA

(See p.19)

Component Video Cable
(See p.26)

Cable Management
2 EA

(See p.20)

Composite Video Cable

(See p.26,27)

Cable Holder
(See p.20)

J

IR Blaster Cable
(See p.32)

12 ASSEMBLING AND PREPARING

QWERTY Remote Control,
Batteries (AA)

(See p.33)

Owner's Manual,
CD Manual

Power Cord

Cinema 3D Glasses

Stand Base, Stand Body
(See p.17)

Stand Screws
8EA, M4x 14

(See p.17)

IR Blaster Cable
(See p.32)

Cable Management
2 EA

(See p.20)

Cable Holder
(See p.20)

Component Video Cable
(See p.26)

Composite Video Cable
(See p.26,27)

ASSEMBLING AND PREPARING 13

Optional Extras

Optional extras can be changed or modified for quality improvement without any notification.

Contact your dealer for buying these items.
These devices only work with certain models.
The model name or design may be changed manufacturer's circumstances or policies.

AG-F3**
Cinema 3D Glasses

The model name or design may
be changed manufacturer's
circumstances or policies.

AG-P*DP

Dual Play Glasses

14 ASSEMBLING AND PREPARING

Parts and Buttons

• . 1

intelligent sensors(For 55GA79OO)

Bu#ons

Description

_/_ (A /V) Scrolls through the saved channels.

+/_ (+/_) Adjusts the volume level.

(OK ®) Selects the highlighted menu option or confirms an input.

S (SETTINGS) Accesses the main menus, or saves your input and exits the menus.

(INPUT-IE)) Changes the input source.

@ ((I)/I) Turns the power on or off.

1,Intelligent sensor - Adjusts the image quality and brightness based on the surrounding environment. (For 55GA7900)

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.

,-----_ CAUTION

Avoid touching the screen at all times, as this

/

J

may result in damage to the screen.

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 atl 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 grill area.

× ×

× ×

v

When transporting a large TV, there should be at
least 2 people.
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.

ASSEMBLING AND PREPARING 15

16 ASSEMBLINGANDPREPARING

Setting up theTV

You can mount your TV to a wall or attach the stand if you wish to place the TV on an entertainment center or other
furniture.

Attaching the stand

If you are not mounting the TV to a wall, use the following instructions to attach the stand.

A cAuTioN

When attaching the stand to the TV set, place the screen facing down on a cushioned table or flat surface to

protect the screen from scratches.
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 tighten the screws with too much force; otherwise they may be damaged and come loose later.

• Remove the stand before installing the TV on a wall mount by performing the stand attachment in reverse.

Stand

__ M4 x 14 1

4 EA _

Front

Stand base

M4x14

4 EA

ASSEMBLgNGANDPREPARING17

Stand base

Stand body

_ 4x14

4 EA