LG 42LA6200-TA, 47LA6200, 55LN5710, 55LA6600, 32LN571B Owner’s Manual

www.lg.com

Please read this manual carefully before operating

your set and retain it for future reference.

LA62**

LA64**

LA66**

LA69**

LA74**

LN57**

OWNER’S MANUAL

LED TV

* LG LED TV applies LCD screen with LED backlights.

P/NO : MFL67706422 (1303-REV01)

Printed in Korea

2

ENG

ENGLISH

TABLE OF CONTENTS

TABLE OF CONTENTS

3 SAFETY INSTRUCTIONS

8 Viewing 3D Imaging (Only 3D models)

9 INSTALLATION PROCEDURE

9 ASSEMBLING AND PREPARING

9 Unpacking

13 Separate purchase

14 Parts and buttons

15 Lifting and moving the TV

16 Setting up the TV

16 - Attaching the stand

18 Mounting on a table

21 Mounting on a wall

22 Tidying cables

23 MAKING CONNECTIONS

23 Antenna connection

24 HDMI connection

24 DVI to HDMI connection

25 Component connection

25 Composite connection

26 Audio connection

26 - Digital optical audio connection

26 Headphone connection

27 USB connection

27 MHL connection

28 REMOTE CONTROL

30 MAGIC REMOTE CONTROL

FUNCTIONS

31 Registering Magic Remote Control

31 How to use Magic Remote Control

31 Precautions to Take when Using the Magic

Remote Control

32 USING THE USER GUIDE

33 MAINTENANCE

33 Cleaning your TV

33 - Screen, frame, cabinet and stand

33 - Power cord

33 TROUBLESHOOTING

34 ENVIRON MENTAL INFORMATION

34 WEEE

WARNING

y

If you ignore the warning message, you may

be seriously injured or there is a possibility of

accident or death.

CAUTION

y

If you ignore the caution message, you may be

slightly injured or the product may be damaged.

NOTE

y

The note helps you understand and use the

product safely. Please read the note carefully

before using the product.

35 SPECIFICATIONS

44 LICENSES

44 OPEN SOURCE SOFTWARE NOTICE

44 EXTERNALCONTROL DEVICE

SETUP

3

ENGENGLISH

SAFETY INSTRUCTIONS

SAFETY INSTRUCTIONS

Please read these safety precautions carefully before using the product.

WARNING

y

Do 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.

y

Do not place the product

where it might be exposed to

dust.

This may cause a fire hazard.

y

Mains 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.

y

Do 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.

y

Make 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.

y

Insert power cable plug

completely into wall socket

otherwise if not secured

completely into socket, fire

ignition may break out.

y

Ensure 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.

y

Do not place a heavy object,

or the product itself, on power

cables.

Otherwise, this may result in

fire or electric shock.

y

Bend 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.

y

When 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.

y

Do not plug too many

electrical devices into a single

multiple electrical outlet.

Otherwise, this may result in

fire due to over-heating.

y

Do not drop the product or let

it fall over when connecting

external devices.

Otherwise, this may result

in injury or damage to the

product.

4

ENG

ENGLISH

SAFETY INSTRUCTIONS

Desiccant

y

Keep 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.

y

Do not let your children climb

or cling onto the TV.

Otherwise, the TV may

fall over, which may cause

serious injury.

y

Dispose of used batteries

carefully to ensure that a

small child does not consume

them.

Please seek Doctor- Medical

Attention immediately if child

consumes batteries.

y

Do 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)

y

Do 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.

y

Do 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.

y

Do not spray water on the

product or scrub with an

inflammable substance

(thinner or benzene). Fire or

electric shock accident can

occur.

y

Do 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.

y

Never touch this product or

antenna during a thunder or

lighting storm.

You may be electrocuted.

y

Never 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.

y

Do 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.

y

If 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.

5

ENGENGLISH

SAFETY INSTRUCTIONS

CAUTION

y

Install the product where no

radio wave occurs.

y

There 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.

y

Do 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.

y

If 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.

y

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.

y

Only use the attachments / accessories specified

by the manufacturer.

y

Unplug 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.

y

Apparatus shall not be

exposed to dripping or

splashing and no objects

filled with liquids, such as

vases, shall be placed on the

apparatus.

y

When installing the antenna,

consult with a qualified

service technician.

If not installed by a qualified

technician, this may create

a fire hazard or an electric

shock hazard.

y

We 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.

y

Only use the specified type of

battery.

This could cause damage to

the remote control.

y

Do not mix new batteries with

old batteries.

This may cause the batteries

to overheat and leak.

y

Batteries should not be exposed to excessive

heat. For example, keep away from direct

sunlight, open fireplace and electric heaters.

y

Do not place non-rechargeable batteries in

charging device.

y

Make sure there are no

objects between the remote

control and its sensor.

y

Signal 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.

y

When 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.

y

Do 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.

6

ENG

ENGLISH

SAFETY INSTRUCTIONS

y

Please 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.

y

Take 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.

y

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 servicer.

y

Prevent dust collecting on the

power plug pins or outlet.

This may cause a fire hazard.

y

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

appliance.

y

Do 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.

y

Avoid 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.

y

When 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).

y

As 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.

y

When 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.

y

When 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.

y

When moving or unpacking

the product, work in pairs

because the product is heavy.

Otherwise, this may result in

injury.

7

ENGENGLISH

SAFETY INSTRUCTIONS

y

Contact the service centre

once a year to clean the

internal parts of the product.

Accumulated dust can cause

mechanical failure.

y

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.

y

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.

y

The 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.

y

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.

y

Displaying 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.

y

Generated 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 depend-

ing on the product.

This generated sound does not affect the

performance and reliability of the product.

8

ENG

ENGLISH

SAFETY INSTRUCTIONS

Viewing 3D Imaging (Only 3D

models)

WARNING

Viewing Environment

y

Viewing Time

- When watching 3D contents, take 5 - 15 minute

breaks every hour. Viewing 3D contents for

a long period of time may cause headache,

dizziness, fatigue or eye strain.

Those that have a photosensitive seizure or

chronic illness

y

Some users may experience a seizure or other

abnormal symptoms when they are exposed to a

ashing light or particular pattern from 3D contents.

y

Do not watch 3D videos if you feel nausea, are

pregnant and/ or have a chronic illness such as

epilepsy, cardiac disorder, or blood pressure disease,

etc.

y

3D Contents are not recommended to those who

suffer from stereo blindness or stereo anomaly.

Double images or discomfort in viewing may be

experienced.

y

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.

y

If your eyesight varies between your right and left

eye, revise your eyesight prior to watching 3D

contents.

Symptoms which require discontinuation or

refraining from watching 3D contents

y

Do not watch 3D contents when you feel fatigue from

lack of sleep, overwork or drinking.

y

When these symptoms are experienced, stop using/

watching 3D contents 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

y

Viewing Distance

- Maintain a distance of at least twice the screen

diagonal length when watching 3D contents.

If you feel discomfort in viewing 3D contents,

move further away from the TV.

Viewing Age

y

Infants/Children

- Usage/ Viewing 3D contents 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 contents.

- 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.

y

Teenagers

- Teenagers under the age of 19 may react with

sensitivity due to stimulation from light in 3D

contents. Advise them to refrain from watching

3D contens for a long time when they are tired.

y

Elderly

- The elderly may perceive less 3D effect

compared to the youth. Do not sit closer to the

TV than the recommended distance.

Cautions when using the 3D glasses

y

Make sure to use LG 3D glasses. Otherwise, you

may not be able to view 3D videos properly.

y

Do not use 3D glasses instead of your normal

glasses, sunglasses or protective goggles.

y

Using modied 3D glasses may cause eye strain or

image distortion.

y

Do not keep your 3D glasses in extremely high or low

temperatures. It will cause deformation.

y

The 3D glasses are fragile and are easy to be

scratched. Always 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.

9

ENGENGLISH

INSTALLATION PROCEDURE / ASSEMBLING AND PREPARING

NOTE

y

Image shown may differ from your TV.

y

Your TV’s OSD (On Screen Display) may differ slightly from that shown in this manual.

y

The available menus and options may differ from the input source or product model that you are using.

y

New features may be added to this TV in the future.

y

The TV can be placed in standby mode in order to reduce the power consumption. And the TV should be turned

off if it will not be watched for some time, as this will reduce energy consumption.

y

The energy consumed during use can be significantly reduced if the level of brightness of the picture is reduced,

and this will reduce the overall running cost.

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

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.

CAUTION

y

Do not use any unapproved items to ensure the safety and product life span.

y

Any damages or injuries by using unapproved items are not covered by the manufacturer’s warranty.

y

Some models have a thin film attached on to the screen and this must not be removed.

NOTE

y

The items supplied with your product may vary depending on the model.

y

Product specifications or contents of this manual may be changed without prior notice due to upgrade of product

functions.

y

For an optimal connection, HDMI cables and USB devices should have bezels less than 10 mm thick and 18 mm

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

B

A

B

*A

<

=

10 mm

*B

<

=

18 mm

10

ENG

ENGLISH

ASSEMBLING AND PREPARING

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

AV MODE

INPUT

P

Tag On

Remote control,

batteries (AAA)

(Depending on model)

(See p. 28, 29)

Magic remote control,

batteries (AA)

(Only LA620*, LA621*,

LA64**, LA66**, LA69**,

LA74**, LN570*, LN572*)

(Depending on model)

(See p. 30)

Owner’s manual Tag on

(Depending on model)

Cinema 3D Glasses

The number of 3D glasses

may differ depending on

the model or country.

(Depending on model)

Dual play glasses

(Depending on model)

Cable holder

(Depending on model)

(See p. 22)

Power Cord

(Depending on model)

Desk-mount Screw

(1EA : Only

32/42/47/50/60LN570*,

32/42/47/50/60LN572*)

(2EA : Only

32/42/47/50LA62**,

32/42/47/50LA64**,

32/42/47/50LA66**,

32/42/47/50LN571*)

(See p. 18, 19)

Desk-mount Cable

2EA

(Only 32/42/47/50LA62**,

32/42/47/50LA64**,

32/42/47/50LA66**,

32/42/47/50LN571*)

(See p. 19)

Bracket Screw

2EA, M4 x 8

(Only 32/42LA62**,

32/42LA64**,

32/42LA66**,

32/42LN571*)

(See p. 19)

Bracket Screw

2EA, P4 x 8

(Only 47/50LA62**,

47/50LA64**,

47/50LA66**,

47/50LN571*)

(See p. 19)

or

Stand Screws

8EA, M4 x 14

(Only LA62**, LA64**,

LA66**, LN571*)

(See p. 16)

Stand Screws

4EA, M4 x 20

(Only LA69**, LA74**)

(See p. 17)

Stand Screws

3EA, P5 x 25

4EA, M4 x 14

(Only LN570*, LN572*)

(See p. 17)

Isolator

(Depending on model)

(See p. 12)

11

ENGENGLISH

ASSEMBLING AND PREPARING

Wall mount inner

spacers

4EA

(Only LA64**)

(See p. 22)

Blu-Ray

(Only LA6980)

Stand Body / Stand

Base

(Only LA62**, LA64**,

LA66**, LN571*)

(See p. 16)

Stand Base

(Only LA69**, LA74**)

(See p. 17)

Stand Body / Stand

Base

(Only LN570*, LN572*)

(See p. 17)

12

ENG

ENGLISH

ASSEMBLING AND PREPARING

NOTE

y

Antenna Isolator Installation Guide

- Use this to install TV in a place where there is a voltage difference between TV Set and GND of antenna signal.

»

If there is a voltage difference between TV Set and GND of antenna signal, the antenna contact might be

heated and excessive heat might cause an accident.

- You can improve the safety when watching TV by efficiently removing power voltage from TV antenna. It is

recommended to mount the isolator to the wall. If it cannot be mounted to the wall, mount it on the TV. Avoid

disconnecting the antenna Isolator after installation.

- Before starting, be sure that the TV antenna is connected.

ANTENNA/

CABLE IN

Cable / Antenna

Wall

Isolator

1. Connect to TV.

2. Connect to Set-Top box.

or

Connect one end of the isolator to cable/antenna jack and the other to TV set or set-top box.

“Equipment connected to the protective earthing of the building installation through the mains connection or through

other equipment with a connection to protective earthing - and to a cable distribution system using coaxial cable,

may in some circumstances create a re hazard. Connection to a cable distribution system has therefore to be

provided through a device providing electrical isolation below a certain frequency range (galvanic isolator, see EN

60728-11)”

When applying the RF Isolator, a slight loss of signal sensitivity can occur.

13

ENGENGLISH

ASSEMBLING AND PREPARING

Separate purchase

Separate purchase items can be changed or modified for quality improvement without any notification.

Contact your dealer to buy these items.

These devices only work with certain models.

P

AG-F***DP

Dual play glasses

AG-F***

Cinema 3D glasses

AN-MR400

Magic remote

Tag On

Tag on AN-VC4**

Video call camera

LG Audio device

Compatibility

LN57**

LA62**, LA64**, LA66**, LA69**, LA74**

AG-F***DP

Dual play glasses

•

AG-F***

Cinema 3D glasses

•

AN-MR400

Magic remote

• •

AN-VC4**

Video call camera

• •

LG Audio device

• •

Tag on

• •

The model name or design may be changed depending on the upgrade of product functions, manufacturer’s

circumstances or policies.

14

ENG

ENGLISH

ASSEMBLING AND PREPARING

SETTINGS

INPUT

OK

Parts and buttons

Button Description

H

Scrolls through the saved programmes.

H

Adjusts the volume level.

H

Selects the highlighted menu option or confirms an input.

S

Accesses the main menu, or saves your input and exits the menus.

Changes the input source.

Turns the power on or off.

NOTE

y

You can set the LG Logo light to on or off by selecting OPTION in the main menus. (Depending on model)

A type : LA62**, LA64**, LA66**, LN571*

SETTINGS

INPUT

OK

Buttons

Screen

Speakers

Remote control sensor

LG Logo light (Only LA64**, LA66**)

Power Indicator (Only LN571*, LA62**)

C type : 60LA74**

SETTINGS

INPUT

OK

Screen

Buttons

Remote control sensor

Power Indicator

Speakers

B type : LA69**, 42/47/55LA74**

Screen

Buttons

Speakers

Remote control sensor

LG Logo light

D type : LN570*, LN572*

SETTINGS

INPUT

OK

Screen

Buttons

Speakers

Remote control sensor

LG Logo light

15

ENGENGLISH

ASSEMBLING AND PREPARING

Lifting and moving the TV

Please note the following advice to prevent the

TV from being scratched or damaged and for safe

transportation regardless of its type and size.

CAUTION

y

Avoid touching the screen at all times, as this may

result in damage to the screen.

y

It is recommended to move the TV in the box or

packing material that the TV originally came in.

y

Before moving or lifting the TV, disconnect the power

cord and all cables.

y

When holding the TV, the screen should face away

from you to avoid damage.

y

Hold the top and bottom of the TV frame rmly. Make

sure not to hold the transparent part, speaker, or

speaker grill area.

y

When transporting a large TV, there should be at

least 2 people.

y

When transporting the TV by hand, hold the TV as

shown in the following illustration.

y

When transporting the TV, do not expose the TV to

jolts or excessive vibration.

y

When transporting the TV, keep the TV upright, never

turn the TV on its side or tilt towards the left or right.

y

Do not apply excessive pressure to cause exing /

bending of frame chassis as it may damage screen.