LG RU-23LZ20, RU-17LZ20, RU-23LZ21, RU-23LZ22, RU-17LZ21 User Manual

LCD
Color Television

OWNER’S MANUAL

MODELS : RU-17LZ20/21/22

RU-23LZ20/21/22

Please read this manual carefully before operating your set.
Retain it for future reference.
Record model number and serial number of the set.
See the label attached on the back cover and quote this
information to your dealer when you require service.

Internet Home Page : http://www.lge.com

Warning

CAUTION

RISK OF ELECTRIC SHOCK
DO NOT OPEN

W

arning

W

arning

WARNING:

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:

TO PREVENT FIRE OR SHOCK HAZARDS, DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE.

NOTE TO CABLE/TV INSTALLER:

This reminder is provided to call 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.

REGULATORY INFORMATION

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 receiver.

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

- Consult the dealer or an experienced radio/TV technician for help.
Any changes or modifications not expressly approved by the party responsible for compliance could void the

user’s authority to operate the equipment.

CAUTION:

Do not attempt to modify this product in any way without written authorization from LG Electronics Corporation.
Unauthorized modification could void the user’s authority to operate this product.

2

Safety Instructions

PORTABLE CART WARNING

Safety Instructions

Safety Instructions

Important safeguards for you and your new product

Y our product has been manufactured and tested with your safety in mind. However, improper use can result in potential elec­trical shock or fire hazards. To avoid defeating the safeguards that have been built into your new product, please read and
observe the following safety points when installing and using your new product, and save them for future reference.

Observing the simple precautions discussed in this booklet can help you get many years of enjoyment and safe operation
that are built into your new product.

This product complies with all applicable U.S. Federal safety requirements, and those of the Canadian Standards
Association.

1. Read Instructions

All the safety and operating instructions should be read
before the product is operated.

2. Follow Instructions

All operating and use instructions should be followed.

3. Retain Instructions

The safety and operating instructions should be retained for
future reference.

4. Heed Warnings

All warnings on the product and in the operating instructions
should be adhered to.

5. Cleaning

Unplug this product from the wall outlet before cleaning. Do
not use liquid cleaners or aerosol cleaners. Use a damp
cloth for cleaning.

6. Water and Moisture

Do not use this product near water, for example, near a bath
tub, wash bowl, kitchen sink, or laundry tub, in a wet base­ment, or near a swimming pool.

7. Accessories Carts and Stands

Do not place this product on a slippery or tilted surface, or on
an unstable cart, stand, tripod, bracket, or table. The product
may slide or fall, causing serious injury to a child or adult,
and serious damage to the product. Use only with a cart,
stand, tripod, bracket, or table recommended by the manu­facturer, or sold with the product. Any mounting of the prod­uct should follow the manufacturer’s instructions, and should
use a mounting accessory recommended by the manufac­turer.

8. Transporting Product

A product and cart combination should be moved with care.
Quick stops, excessive force, and uneven surfaces may
cause the product and cart combination to overturn.

9. Attachments

Do not use attachments not recommended by the product
manufacturer as they may cause hazards.

10. Ventilation

Slots and openings in the cabinet are provided for ventilation
and to ensure reliable operation of the product and to protect
it from overheating, and these openings must not be blocked
or covered. The openings should never be blocked by plac­ing the product on a bed, sofa, rug, or other similar surface.
This product should not be placed in a built-in installation
such as a bookcase or rack unless proper ventilation is pro­vided or the manufacturer’s instructions have been adhered
to.

11. Power Sources

This product should be operated only from the type of power
source indicated on the marking label. If you are not sure of
the type of power supply to your home, consult your product
dealer or local power company. For products intended to
operate from battery power, or other sources, refer to the
operating instructions.

12. Power-Cord Polarization

This product is equipped with a three-wire grounding type
plug, a plug having a third (grounding) pin. This plug will only
fit into the grounding-type power outlet. This is a safety fea­ture. If you are unable to insert the plug into the outlet, con­tact your electrician to replace your obsolete outlet. Do not
defeat the safety purpose of the grounding-type plug.

13. Power-Cord Protection

Power-supply cords should be routed so that they are not
likely to be walked on or pinched by items placed upon or
against them, paying particular attention to cords at plugs,
convenience receptacles, and the point where they exit from
the product.

3

Safety Instructions

Antenna Lead in Wire

Antenna Discharge Unit
(NEC Section 810-20)

Grounding Conductor
(NEC Section 810-21)

Ground Clamps
Power Service Grounding

Electrode System (NEC
Art 250, Part H)

Ground Clamp

Electric Service

Equipment

Safety Instructions continued

Safety Instructions continued

14. Outdoor Antenna Grounding

If an outside antenna or cable system is connected to the
product, be sure the antenna or cable system is grounded so
as to provide some protection against voltage surges and
built-up static charges. Article 810 of the National Electrical
Code (U.S.A.), ANSI/ NFPA 70 provides information with
regard 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.

Example of Grounding According to National
Electrical Code Instructions

NEC - National Electrical Code

15. Lightning

For added protection for this product (receiver) during a light­ning storm, or when it is left unattended and unused for long
periods of time, unplug it from the wall outlet and disconnect
the antenna or cable system. This will prevent damage to the
product due to lightning and power-line surges.

16. Power Lines

An outside antenna system should not be located in the
vicinity of overhead power lines or other electric light or
power circuits, or where it can fall into such power lines or
circuits. When installing an outside antenna system, extreme
care should be taken to keep from touching such power lines
or circuits as contact with them might be fatal.

17. Overloading

Do not overload wall outlets and extension cords as this can
result in a risk of fire or electric shock.

19. Servicing

Do not attempt to service this product yourself as opening or
removing covers may expose you to dangerous voltage or
other hazards. Refer all servicing to qualified service per­sonnel.

20. Damage Requiring Service

Unplug this product from the wall outlet and refer servicing to
qualified service personnel under the following conditions:

a. If the power-supply cord or plug is damaged.
b. If liquid has been spilled, or objects have fallen into the

product.
c. If the product has been exposed to rain or water.
d. If the product does not operate normally by following the

operating instructions. Adjust only those controls that are

covered by the operating instructions as an improper

adjustment of other controls may result in damage and

will often require extensive work by a qualified technician

to restore the product to its normal operation.
e. If the product has been dropped or the cabinet has been

damaged.
f. If the product exhibits a distinct change in performance.

21. Replacement Parts

When replacement parts are required, be sure the service
technician has used replacement parts specified by the man­ufacturer or have the same characteristics as the original
part. Unauthorized substitutions may result in fire, electric
shock, or other hazards.

22. Safety Check

Upon completion of any service or repairs to this product,
ask the service technician to perform safety checks to deter­mine that the product is in proper operating condition.

23. Wall or Ceiling Mounting

The product should be mounted to a wall or ceiling only as
recommended by the manufacturer. The product may slide
or fall, causing serious injury to a child or adult, and serious
damage to the product.

24. Heat

The product should be situated away from heat sources
such as radiators, heat registers, stoves, or other products
(including amplifiers) that produce heat.

18. Object and Liquid Entry

Never push objects of any kind into this product through
openings as they may touch dangerous voltage points or
short-out parts that could result in a fire or electric shock.
Never spill liquid of any kind on the product.

4

Contents

Contents

Contents

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3~4

Introduction

Controls and Connection Options . . . . . . . . . .6~7

Remote Control Key Functions . . . . . . . . . . . . . .8

Installation

Accessories / Power Connections . . . . . . . . . . . .9

Kensington Security System . . . . . . . . . . . . . . . . 9

Installation Instruction . . . . . . . . . . . . . . . . . . . . . .10

External Equipment Connections . . . . . . . . . .11~14

Antenna Connection . . . . . . . . . . . . . . . . . . . . .11

VCR Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Cable TV Setup . . . . . . . . . . . . . . . . . . . . . . . .12

External A/V Source Setup . . . . . . . . . . . . . . . .12

DVD Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

DTV Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Using Headphones . . . . . . . . . . . . . . . . . . . . . .13

PC Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Operation

TV Operation Overview . . . . . . . . . . . . . . . . . . . .15

Menu Language Selection . . . . . . . . . . . . . . . . . .15

Channel Menu Options

Memorizing the Channels with EZ Scan . . . . . .16

Add/Delete Channels with Ch.edit . . . . . . . . . . .16

Fine Tuning Adjustment . . . . . . . . . . . . . . . . . .16

Favorite Channels Setup . . . . . . . . . . . . . . . . . .16

Picture Menu Options

EZ Video . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Manual Picture Control . . . . . . . . . . . . . . . . . . .17

Auto Color Control Adjustment . . . . . . . . . . . . .17

Manual Color Temperature Control . . . . . . . . . .18

DRP (Digital Reality Picture) . . . . . . . . . . . . . . .18

Picture Format Setup . . . . . . . . . . . . . . . . . . . .18

Sound Menu Options

EZ Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Equalizer Adjustments . . . . . . . . . . . . . . . . . . .19

Sound Balance . . . . . . . . . . . . . . . . . . . . . . . . .19

AVL(Auto Volume Leveler) . . . . . . . . . . . . . . . .19

Sound Selection in PC mode . . . . . . . . . . . . . .20

Stereo/SAP Broadcasts Setup . . . . . . . . . . . . .20

Time Menu Options

Auto Clock Setup . . . . . . . . . . . . . . . . . . . . . . .21

Manual Clock Setup . . . . . . . . . . . . . . . . . . . . .21

On/Off Timer Setup . . . . . . . . . . . . . . . . . . . . .22

Sleep Timer Setup . . . . . . . . . . . . . . . . . . . . . .22

Special Menu Options

Closed Captions . . . . . . . . . . . . . . . . . . . . . . . .23

Captions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Caption/Text . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Key Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Auto Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Lock Menu Options

Lock Menu Setup . . . . . . . . . . . . . . . . . . . . . . .26

RGB-PC Menu Options

Auto Config. Adjustment . . . . . . . . . . . . . . . . . . 27

Horizontal/Vertical Position Adjustments . . . . . .27

Phase/Clock Adjustments . . . . . . . . . . . . . . . . . 27

PIP (Picture-in-Picture) Feature

Watching PIP/Double Window . . . . . . . . . . . . . .28

TV Program Selection for PIP . . . . . . . . . . . . . .28

Using PIP Still Function . . . . . . . . . . . . . . . . . .28

PIP Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

Moving the PIP . . . . . . . . . . . . . . . . . . . . . . . . .28

Swapping the PIP . . . . . . . . . . . . . . . . . . . . . . .29

Selecting an Input Signal Source for PIP . . . . . .29

POP (Picture-out-of-Picture: Channel Scan) . . .29

Troubleshooting Checklist . . . . . . . . . . . . . . . . . . . . . .30

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

Product Specifications . . . . . . . . . . . . . . . . . . . . . . . . .32

Your LG Limited Warranty . . . . . . . . . . . . . . . . . . . . 35~36

After reading this manual, keep it handy for future reference.

5

Introduction

on/off tv/video menu enter vol ch

MONO DPM

SAP

STEREO

ST

R

R

S-VIDEO VIDEO

L / MONO

AUDIO

IN 2

ANT IN

+75 Ω

COMPONENT(480i/480p/720p/1080i)

PC

SOUND

VIDEO IN

DVD/DTV IN

AUDIO

VIDEO

P

R

P

B

Y

AUDIO(MONO)

DC IN (15V)

LR

L

R

PC INPUT

Introduction

Introduction

RU-17LZ20/21/22 Controls & Connection Options

RU-17LZ20/21/22 Controls & Connection Options

TV/Video Button

On/Off Button

Remote Control Sensor

Menu Button

Channel Button

Enter Button

Volume Button

Mono Indicator

SAP Indicator

Stereo Indicator

Power/Standby Indicator

Glows red in Standby mode,
Glows green when the TV is turned on.

DPM Indicator

Headphone Jack

S-Video Input

Video Input

Audio Input

DC 15V Input

DVD/DTV Input

PC Input

Audio / Video Input

PC Sound Input

Antenna Input

(Component (480i/480p/720p/1080i), Audio)

6

Introduction

ANT IN

+75 Ω

COMPONENT(480i/480p/720p/1080i)

PC

SOUND

VIDEO IN

DVD/DTV IN

AUDIO

VIDEO

P

R

P

B

Y

AUDIO(MONO)

LR

L

R

PC INPUT

AC INPUT

S-VIDEO VIDEO

AUDIO

R

IN2

L / MONO

MONO DPM

SAP

STEREO

ST

R

ch

vol

m

enu

enter

on/off

tv

video

/ I

RU-23LZ20/21/22 Controls & Connection Options

RU-23LZ20/21/22 Controls & Connection Options

Channel Buttons

Volume Buttons

Enter Button

Menu Button

Mono Indicator

Stereo Indicator

SAP Indicator

DPM Indicator

TV·Video Button

On/Off Button

Power/Standby Indicator

Glows red in Standby mode,
Glows green when the TV is turned on.

Remote Control Sensor

Headphone Jack
S-Video Input

* Kensington Security

System Connector
(Refer to P.9)

Video Input
Audio Input

AC Input

DVD/DTV Input

Audio / Video Input

PC Sound Input

PC Input

Antenna Input

(Component (480i/480p/720p/1080i), Audio)

7

Introduction

powermute

tv/video

multimedia

mts

fcr

ch

ch

vol

enter

123

456

789

0

vol

exit

menu

audio

piparc cc

video

pip input flashbkposition

pip swap sleepsize

still

scan

ch

Remote Control Key Functions

Remote Control Key Functions

- When using the remote control, aim it at the remote control sensor on the TV.

Switches the sound on or off.

TV/VIDEO

Selects: TV, Video 1, Video 2,

S-Video, Component, or

RGB-PC mode.

(Refer to p.16)

NUMBER buttons

(Refer to p.19)

(Refer to p.18)

POSITION

PIP INPUT

PIP SWAP

CH (

(Refer to p.28 ~ 29)

Installing Batteries

Installing Batteries

MUTE

FCR

EXIT

AUDIO

ARC

PIP

SIZE

STILL
SCAN

DD/ EE

MULTIMEDIA

Selects:

RGB-PC mode.

TV, Component, or

POWER

MTS

(Refer to p.20)

MENU

ENTER

CH

D / E

(Channel button)

VOL F / G (Volume button)

VIDEO

(Refer to p.17)

CC

(Refer to p.24)

FLASHBK

Press the FLASHBK button to
return to the last channel you were
watching.

SLEEP

(Refer to p.22)

)

• Open the battery compartment cover on the back side and
insert the batteries with correct polarity.

• Install two 1.5V batteries of AAA type. Don’t mix used batteries
with new batteries.

8

Installation

1.5V

1.5V

powermute

tv/video

multimedia

mts

fcr

ch

ch

vol

enter

123

456

789

0

vol

exit

menu

audio

piparc cc

video

pip inputflashbkposition

pip swapsleepsize

still

scan

ch

K

Installation

Accessories

Accessories

Installation

Operating Guide

PC Signal Cable

Power Connections (RU-17LZ20/21/22 Only)

Power Connections (RU-17LZ20/21/22 Only)

AAA Batteries

PC Sound Cable

* Caution: Please make sure to connect the TV to the AC power
adapter before connecting the TV's power plug to a wall power out­let.
a. Remove the connection panel cover as shown below.
b. Connect the antenna cable to the antenna input port on the
TV.
c. Connect the AC adapter to the power input port on the TV.
d. Plug the power cord into the wall power outlet only after con­necting the power cord to the AC adapter first.
e. Reinstall the connection panel cover.

Kensington Security System (RU-23LZ20/21/22 Only)

Kensington Security System (RU-23LZ20/21/22 Only)

AC Adapter

(RU-17LZ20/21/22 Only)

Power Cord

a

Remote Control

Tie Bands

- Arrange the wires
with the tie bands.

b

d

c

- The TV is equipped with a Kensington Security System connector
on the back panel. Connect the Kensington Security System
cable as shown below.

- For the detailed installation and use of the Kensington Security
System, refer to the user’s guide provided with the Kensington
Security System.
For further information, contact http://www.kensington.com, the
internet homepage of the Kensington company. Kensington sells
security systems for expensive electronic equipment such as note­book PCs and LCD projectors.

- Note: The Kensington Security System is an optional accessory.

NOTES
a. If the TV feels cold to the touch, there may be a small “flicker” when when it is turned on.

This is normal, there is nothing wrong with TV.

b. 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 monitor's performance.

c. 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.

9

Installation

3

12

Installation Instruction

Installation Instruction

Rear

A/V Cover

Rear

A/V Cover

ire Holders

WWire Holders

* The connection panel is hidden behind the A/V cover.
a. Remove the cover.
b. Install wires as necessary.
c. Reinstall the cover. Position the A/V cover with the TV

back panel, tilt it back as shown.

d. Align the holes on the TV back panel with the two tabs

on the rear A/V cover and insert.

e. Close cover.

Adjusting the

Adjusting the

- You can adjust the vertical angle of the TV between 3°
and 12°.

TV V

TV V

iewing

iewing

Angle

Angle

- Thread, then pull the wires through the hole on the TV
stand.

Swivel Stand

Swivel Stand

- The TV can be conveniently swiveled on its stand
25° (RU-23LZ20/21/22) / 30°(RU-17LZ20/21/22) to the left
or right to provide the optimum viewing angle.

Installation on the W

Installation on the W

- An optional wall mount is available for this TV, see your dealer.
For installation, follow the instructions provide with the optional wall mount.

10

all

all

External Equipment Connections

ANT IN

+75 Ω

PC INPUT

ANT IN

+75 Ω

PC INPUT

External Equipment Connections

- This manual mainly explains the features for the RU-17LZ20/21/22.

Antenna Connection

Antenna Connection

- For optimum picture quality, adjust antenna direction.

Connecting to an Inside Antenna Setup

- Typical wall antenna jack used in apartment buildings, connect the antenna cable as shown below.

(Use the correct type of antenna cable for the type of wall antenna jack.)

Turn clockwise to tighten.

Bronze Wire

75Ω Round Cable

Antenna

Converter

Apartment Buildings

300Ω Flat Wire

Wall Connection Jack

Installation

Antenna Jack

- If you have a 75Ω round cable, insert the bronze wire and then tighten the connection nut. If you have a 300Ω flat wire, connect

the twisted wire to the antenna converter and then connect the converter to the antenna jack on the TV.

- If using 75Ω round cable, do not bend the bronze wire. It may cause poor picture quality.

Connecting to an Outdoor Antenna Setup

- This type of antenna is commonly used in single family dwellings.

VHF Antenna

UHF

Antenna

Single Family Home

- In poor signal areas, to get better picture quality, install a
signal amplifier to the antenna as shown to the right.

- If signal needs to be split for two TVs, use an antenna
signal splitter for connection.

75Ω Round Cable

300Ω Flat Wire

VHF

Turn clockwise to tighten.

Bronze Wire

Antenna

Converter

UHF

PC INPUT

Antenna Jack

ANT IN

+75 Ω

Signal

Amplifier

11