LG RT-23LZ55 Owner’s Manual
LCD
TV
Please
read
Information
Manual
included
together
before
reading
this
manual
and
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.
P/NO
:
3828TUL330G
(0506-REV00)
Printed
in
Korea
OWNER'S
MANUAL
MODEL:
RT-23LZ55
***
2
Contents
Installation
3
Location
and
function
of
controls
4
Remote
control
handset
Battery
installation
/
Front
/
Rear
Basic
operation
8
On
and
off
/
Programme
selection
Volume
adjustment
/
Quick
view
Mute
function
On
screen
language
selection
On
screen
menus
9
Menu
selection
Setting
up
TV
stations
10
Auto
programme
tuning
Manual
programme
tuning
Programme
edit
Favourite
programme
Calling
the
programme
table
Picture
adjustment
15
PSM
(Picture
Status
Memory)
Picture
adjustment
Picture
format
Sound
adjustment
17
SSM
(Sound
Status
Memory)
Sound
adjustment
/
Stereo/Dual
reception
NICAM
reception
/
Sound
output
selection
Time
Menu
19
Clock
/
On/Off
time
Auto
off
/
Sleep
timer
Other
functions
21
TV,
AV
and
PC
modes
Child
lock
Teletext
(option)
23
Switch
on/off
SIMPLE
text
/
TOP
text
(option)
FASTEXT
/
Special
teletext
functions
Connection
of
external
equipment
26
Aerial
socket
Audio/Video
in
sockets
S-Video/Audio
in
sockets
(S-Video)
DVD
input
sockets
DTV
in
sockets
Connection
of
PC
28
PC
in
socket
PC
Setup
(only
DVI-Analogue
mode)
External
Control
Device
Setup
;
RS-232C
(option)
30
IR
Codes
34
Troubleshooting
check
list
36
3
Connection
of
TV
Pull
the
back
cover
backside
while
pushing
the
two
tabs
and
then
lift
it
up.
Connect
the
aerial
cable
to
the
socket
marked
+75
Ω
on
the
back.
For
the
best
reception
an
outdoor
aerial
should
be
used.
To
connect
an
additional
equipment,
see
the
Connection
of
external
equipment
section.
Connect
the
power
cord.
Close
the
back
cover.
Positioning
your
display
-
Thread,
then
pull
the
cables
(except
the
aerial
cable)
through
the
hole
on
the
TV
stand.
Arrange
the
aerial
cable
through
the
side hole
as
shown
below.
Positioning
your
display
Adjust
the
position
of
the
panel
in
various
ways
for
maximum
comfort.
?
Tilt
range
Installation
5
15
1
2
3
4
5
~
1
24
5
Aerial
cable
4
POWER
MUTE
TV/AV
MULTIMEDIA
I/II
LIST
PR
PR
VOL
OK
123
456
789
SSM PSM
0
VOL
Q.VIEW
MENU
SLEEP
ARC
TEXT
UPDATE
TIME
SIZE
MIX
HOLD
REVEAL
INDEX
MODE
?
i
M
Location
and
function
of
controls
All
the
functions
can
be
controlled
with
the
remote
control
handset.
Some
functions
can
also
be
adjusted
with
the
buttons
on
the
side
panel
of
the
set.
Only
the
remote
control
handset
supplied
will
oper-
ate
this
set.
Remote
control
handset
Before
you
use
the
remote
control
handset,
please
install
the
bat-
teries.
See
the
next
page.
1.
MUTE
switches
the
sound
on
or
off.
2.
TV/AV
-
p.21
selects
TV
or
AV
monitor
mode.
clears
the
menu
from
the
screen.
switches
the
set
on
from
standby.
selects:
TV,
AV,
S-Video,
COMPONENT1,
COMPONENT2
or
PC
mode.
3.
LIST
-
p.14
displays
the
programme
table.
4.
Q.VIEW
-
p.14
returns
to
the
previously
viewed
programme.
selects
a
favourite
programme.
5.
D
/
E
(Programme
Up/Down)
selects
a
programme
or
a
menu
item.
switches
the
set
on
from
standby.
F
/
G
(Volume
Down/up)
adjusts
the
volume.
adjusts
menu
settings.
OK
accepts
your
selection
or
displays
the
current
mode.
6.
NUMBER
BUTTONS
switches
the
set
on
from
standby
and
selects
a
programme.
7.
SSM
(Sound
Status
Memory)
-
p.17
recalls
your
preferred
sound
setting.
8.
ARC
-
p.16
select
your
desired
picture
format.
9.
SLEEP
-
p.20
sets
the
sleep
timer.
10.
MULTIMEDIA
selects:
TV,
COMPONENT1,
COMPONENT2
or
PC
mode.
1
11
12
13
14
15
10
2
3
4
5
6
7
8
9
(With
TELETEXT)
5
Location
and
function
of
controls
11.
POWER
switches
the
set
on
from
standby
or
off
to
standby.
12.
I/II
-
p.18
selects
the
language
during
dual
language
broadcast.
selects
the
sound
output.
13.
MENU
selects
a
menu.
14.
PSM
(Picture
Status
Memory)
-
p.15
recalls
your
preferred
picture
setting.
15.
TELETEXT
BUTTONS
(option)
-
p.23~25
These
buttons
are
used
for
teletext.
For
further
details,
see
the
'Teletext'
section.
*
:
No
function
COLOURED
BUTTONS
:
These
buttons
are
used
for
teletext
(only
TELETEXT
models)
or
programme
edit.
Battery
installation
Note
:
To avoid
damage
from
possible
battery
leakage,
remove
the
batteries
if
you
do
not
plan
to
use
the
remote
control
handset
for
an
extended
period
of
time.
POWER
MUTE
TV/AV
MULTIMEDIA
I/II
LIST
PR
PR
VOL
OK
123
456
789
SSM
PSM
0
VOL
Q.VIEW
MENU
SLEEP
ARC
1
11
12
13
14
10
2
3
4
5
6
7
8
9
The
remote
control
handset
is
pow-
ered
by
two
AAA/Alkaline
type
bat-
teries.
To
load
the
batteries,
turn
the
remote
control
handset
over
and
open
the
battery
compartment.
Install
two
batteries
as
indicated
by
the
polarity
symbols
(
and
)
marked
inside
the
compartment.
+
-
(Without
TELETEXT)
6
Location
and
function
of
controls
1
7
9
8
Side
panel
P
R
VOL
M
ENU
OK
T
V
AV/
PC
5
6
4
3
2
1.
ON/OFF(
/I)
switches
the
set
on
from
standby
or
off
to
standby.
2.
TV/AV/PC
selects
TV,
AV
or
PC
monitor
mode.
clears
the
menu
from
the
screen.
switches
the
set
on
from
standby.
3.
MENU
selects
a
menu.
4.
OK
accepts
your
selection
or
displays
the
current
mode.
5.
F
/
G
(Volume
Down/Up)
adjusts
the
volume.
adjusts
menu
settings.
6.
D
/
E
(Programme
Up/Down)
selects
a
programme
or
a
menu
item.
switches
the
set
on
from
standby.
7.
REMOTE CONTROL
SENSOR
8.
POWER
ON/STANDBY
INDICATOR
(
)
illuminates
red
in
standby
mode.
illuminates
green
when
the
set
is
switched
on.
9.
Stand
(option)
Front
7
Location
and
function
of
controls
1
S-VIDEO
INPUT
COMPONENT
2
IN
(480i/576i)
AUDIO
INPUT
AC
INPUT
REMOTE CONTROL
JACK
UPGRADE
PORT
DVI
INPUT
(RGB
INPUT)
COMPONENT1
(DVD/DTV
IN)
((480i/480p/576i/576p/720p/1080i),
Audio)
AUDIO/VIDEO
INPUT
PC
SOUND
INPUT
ANTENNA
INPUT
Rear
8
Basic
operation
On
and
off
1.
Press
the
POWER,
D
/
E
,
TV/AV,
MULTIMEDIA
or
NUMBER
buttons
to
switch
it
on
fully.
2.
Press
the
POWER
button.
The
set
reverts
to
standby
mode.
3.
Pull
out
mains
plugs
to
switch the
set
off.
Note
:
If,
while
the
set
is
switched
on,
the
mains
plug
is
disconnected
the
set
will
switch
to
standby
or
power
on
when
the
mains
plug
is
replaced
in
the
mains
power
socket.
Programme
selection
You
can
select
a
programme
number
with
the
D
/
E
or
NUMBER
buttons.
Volume
adjustment
Press
the
F
/
G
button
to
adjust
the
volume.
Quick
view
Press
the
Q.VIEW
button
to
view
the
last
programme
you
were
watching.
Note
:
This
function
works
only
when
Favourite
programme
is
set
to
Off.
Otherwise
each
press
of
this
button
will
select
a
stored
favorite
programme.
Mute
function
Press
the
MUTE
button.
The
sound
is
switched
off
and
the
display
appears.
You
can
cancel
it
by
pressing
the
MUTE,
F
/
G
,
I/II,orSSM
button.
On
screen
language
selection
The
menu
can
be
displayed
on
the
screen
in
your
desired
language.
First
select
your
language.
1.
Press
the
MENU
button
and
then
D
/
E
button
to
select
the
Setup
menu.
2.
Press
the
G
button
and
then
D
/
E
button
to
select
Language.
3.
Press
the
G
button
and
then
D
/
E
button
to
select
your
desired
language.
All
the
on
screen
displays
will
appear
in
the
selected
language.
4.
Press
the
OK
button.
5.
Press
the
TV/AV
button
to
return
to
normal
TV
viewing.
POWER
MUTE
TV/AV
MULTIMEDIA
I/II
PR
PR
VOL
OK
123
456
789
SSM
0
VOL
Q.VIEW
MENU
9
Menu
selection
1.
Press
the
MENU
button
and
then
D
/
E
button
to
display
each
menu.
2.
Press
the
G
button
and
then
D
/
E
button
to
select
a
menu
item.
3.
Change
the
setting
of
an
item
in
the
sub
or
pull-down
menu
with
F/G
button.
You
can
move
to
the
higher
level
menu
by
pressing
the
OK
button
and
to
move
to
the
lower
level
menu
by
pressing
the
MENU
button.
Note
:
a.
In
the
TV/AV,
COMPONENT
mode,
the
PC
menu
is
not
dis-
played.
b.
In
the
teletext
mode,
menus
are
not
displayed.
c.
On
some
models,
the
Language
will
not
be
displayed.
On
screen
menus
PR
PR
VOL
OK
VOL
MENU
Auto
programme
Manual
programme
Programme
edit
Favourite
programme
Channel
Channel
menu
PSM
Contrast
Brightness
Colour
Sharpness
Picture
Picture
menu
SSM
AVL
Balance
Sound
Sound
menu
Language
Input
Child
lock
Setup
Setup
menu
DEFG
OK MENU
DEFG
OK MENU
Time
Off
time
On
time
Auto
off
Time
Time
menu
DEFG
OK
MENU
DEFG
OK MENU
DEFG
OK MENU
10
Setting
up
TV
stations
Up
to
100
TV
stations
can
be
stored
by
programme
numbers
(0
to
99).
Once
you
have
preset
the
stations,
you
will
be
able
to
use
the
D
/
E
or
NUMBER
buttons
to
scan
the
stations
you
have
programmed.
Stations
can
be
tuned
using
automatic
or
manual
modes.
Auto
programme
tuning
All
stations
that
can
be
received
are
stored
by
this
method.
It
is
recommended
that
you
use
auto
programme
during
installation
of
this
set.
1.
Press
the
MENU
button
and
then
D
/
E
button
to
select
the
Channel
menu.
2.
Press
the
G
button
and
then
D
/
E
button
to
select
Auto
programme.
3.
Press
the
G
button.
Select
a
TV
system
with
the
G
button
and
then
D
/
E
button
on
the
System
menu;
BG
:
PAL
B/G,
SECAM
B/G
(Europe/East
Europe)
I
:
PAL
I/II
(U.K./Ireland)
DK
:
PAL
D/K,
SECAM
D/K
(East
Europe)
L
:
SECAM
L/L'
(France)
M
:
(USA/Korea/Philippines)
4.
Press
the
OK
button.
5.
Press
the
D
/
E
button
to
select
Storage
from.
6.
Select
the
beginning
programme
number
with
the
F
/
G
button
or
NUMBER
buttons
on
the
Storage
from
pull-down
menu.
Any
number
under
10
is
entered
with
a
numeric
'0'
in
front
of
it,
i.e.
'05'
for
5.
7.
Press
the
D
/
E
button
to
select
Search.
8.
Press
the
G
button
to
begin
auto
programming.
All
receivable
stations
are
stored.
Option:
In
Australia,
if
no
station
name
can
be
assigned
to
a
station,
the
channel
number
is
assigned
and
stored
as
-----
fol-
lowed
by
a
number
see
'Assigning
a
station
name'
section
to
assign
the
station
name.
To
stop
auto
programming,
press
the
MENU
button.
When
auto
programming
is
completed,
the
Programme
edit
menu
appears
on
the
screen.
See
the
'Programme
edit'
section
to
edit
the
stored
programme.
9.
Press
the
TV/AV
button
to
return
to
normal
TV
viewing.
PR
PR
VOL
OK
VOL
MENU
TV/AV
123
456
789
0
Auto
programme
BG
I
DK
L
M
System
Storage
from
Search
Manual
programme
Programme
edit
Favourite
programme
Channel
DEFG
OK MENU
DEFG
OK MENU
Auto
programme
C21
BG
2
5%
System
Storage
from
Search
MENU
Auto
programme
11
Setting
up
TV
stations
Manual
programme
tuning
Manual
programme
lets
you
manually
tune
and
arrange
the
sta-
tions
in
whatever
order
you
desire.
Also
you
can
assign
a
station
name
with
five
characters
to
each
programme
number.
1.
Press
the
MENU
button
and
then
D
/
E
button
to
select
the
Channel
menu.
2.
Press
the
G
button
and
then
D
/
E
button
to
select
Manual
programme.
3.
Press
the
G
button
and
then
D
/
E
button
to
select
Storage.
4.
Select
the
desired
programme
number
(0
to
99)
with
the
F
/
G
button
or
NUMBER
buttons
on
the
Storage
menu.
Any
number
under
10
is
entered
with
a
numeric
'0'
in
front
of
it,
i.e.
'05'
for
5.
5.
Press
the
D
/
E
button
to
select
System.
6.
Select
a
TV
system
with
the
G
button
and
then
F
/
G
button
on
the
System
menu;
BG
:
PAL
B/G,
SECAM
B/G
(Europe/East
Europe)
I
:
PAL
I/II
(U.K./Ireland)
DK
:
PAL
D/K,
SECAM
D/K
(East
Europe)
L
:
SECAM
L/L'
(France)
M
:
(USA/Korea/Philippines)
7.
Press
the
OK
button.
8.
Press
the
D
/
E
button
to
select
Channel.
9.
Press
the
G
button
and
then
D
/
E
button
to
select
VHF/UHF
or
Cable
on
the
Channel
menu.
If
possible,
select
the
channel
number
directly
with
the
number
buttons.
Any
number
under
10
is
entered
with
a
numeric
'0'
in
front
of
it,
i.e.
'05' for
5.
10.
Press
the
OK
button.
11.
Press
the
D
/
E
button
to
select
Search.
12.
Press
the
G
button
and
then
F
/
G
button
to
commence
searching
on
the
Search
pull-down
menu.
If
a
station
is
found
the
search
will
stop.
13.
Press
the
OK
button
to
store
it.
14.
To
store
another
station,
repeat
steps
3
to
13.
15.
Press
the
TV/AV
button
to
return
to
normal
TV
viewing.
PR
PR
VOL
OK
VOL
MENU
TV/AV
123
456
789
0
Auto
programme
Programme
edit
Favourite
programme
Channel
DEFG
OK
MENU
Manual
programme
29
Storage
System
Channel
Search
Name
DEFG
OK MENU
Manual
programme
GGG
Storage
System
Channel
Search
Name
DEFG
OK MENU
Manual
programme
12
PR
PR
VOL
OK
VOL
MENU
TV/AV
Setting
up
TV
stations
Assigning
a
station
name
1.
Repeat
the
'Manual
programme
tuning'
steps
1
to
2.
2.
Press
the
G
button
and
then
D
/
E
button
to
select
Name.
3.
Press
the
G
button
and
then
use
the
D
/
E
.
You
can
use
a
blank,
+,
-,thenumber0to9andthealphabetAtoZ.
With
the
F
button
you
can
select
in
the
opposite
direction.
4.
Select
the
position
by
pressing
the
F
/
G
button
and
then
make
your
choice
of
the
second
character,
and
so
on.
5.
Press
the
OK
button
to
store
it.
6.
Press
the
TV/AV
button
to
return
to
normal
TV
viewing.
Auto
programme
Programme
edit
Favourite
programme
Channel
DEFG
OK MENU
Manual
programme
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