LG CM4640, CM4740, CM4740-AB User Guide

OWNER’S MANUAL

Mini Hi-Fi
System

ENGLISH

Please read this manual carefully before operating
your set and retain it for future reference.

CM4740 (CM4740, CMS4740F, CMS4740W)
CM4640 (CM4640, CMS4740F)
CM4540 (CM4540, CMS4540F, CMS4540W)
CM4440 (CM4440, CMS4540F)
CM4340 (CM4340, CMS4340F)

www.lg.com

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1 Getting Started

Getting Started2

Safety Information

1

Getting Started

CAUTION: TO REDUCE THE RISK OF ELECTRIC

SHOCK DO NOT REMOVE COVER (OR BACK) NO

USER-SERVICEABLE PARTS INSIDE REFER SERVICING

TO QUALIFIED SERVICE PERSONNEL.

WARNING: TO PREVENT FIRE OR ELECTRIC SHOCK
HAZARD, DO NOT EXPOSE THIS PRODUCT TO RAIN
OR MOISTURE.

WARNING: Do not install this equipment in a
conned space such as a book case or similar unit.

CAUTION: Do not block any ventilation openings.
Install in accordance with the manufacturer’s
instructions.
Slots and openings in the cabinet are provided for
ventilation and to ensure reliable operation of the
product and to protect it from over heating. The
openings shall be never be blocked by placing
the product on a bed, sofa, rug or other similar
surface. This product shall not be placed in a built­in installation such as a bookcase or rack unless
proper ventilation is provided or the manufacturer’s
instruction has been adhered to.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

This lightning ash 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
sucient 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
product.

CAUTION: This product employs a Laser System.
To ensure proper use of this product, please read
this owner’s manual carefully and retain it for future
reference. Shall the unit require maintenance,
contact an authorized service center.
Use of controls, adjustments or the performance of
procedures other than those specied herein may
result in hazardous radiation exposure.
To prevent direct exposure to laser beam, do not
try to open the enclosure.

CAUTION concerning the Power cord

Most appliances recommend they 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 specication page of this
owner’s manual to be certain. Do not overload wall
outlets. Overloaded wall 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 re. 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
center. 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. To
disconnect power from the mains, pull out the
mains cord plug. When installing the product,
ensure that the plug is easily accessible.

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This device is equipped with a portable battery or
accumulator.

Safety way to remove the battery or the
battery from the equipment: Remove the

old battery or battery pack, follow the steps
in reverse order than the assembly. To prevent
contamination of the environment and bring on
possible threat to human and animal health, the
old battery or the battery put it in the appropriate
container at designated collection points. Do
not dispose of batteries or battery together with
other waste. It is recommended that you use
local, free reimbursement systems batteries and
accumulators. The battery shall not be exposed to
excessive heat such as sunshine, re or the like.

CAUTION: The apparatus shall not be exposed to
water (dripping or splashing) and no objects lled
with liquids, such as vases, shall be placed on the
apparatus.

Getting Started 3

1

Getting Started

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Table of Contents4

Table of Contents

1 Getting Started

2 Safety Information
6 Unique Features
6 Accesories
7 Playable file Requirement
7 – Music file requirement
7 – Compatible USB Devices
7 – USB device requirement
8 Remote Control
9 Front Panel
11 Rear Panel (CM4740, CM4540)
12 Rear Panel (CM4640)
13 Rear Panel (CM4440)

2 Connecting

14 Connecting to speakers
14 – Attaching the speakers to the unit
14 – Attaching the subwoofer to the unit.

(CM4740, CM4540)
15 Antenna Connection
15 Optional Equipment Connection
15 – USB Connection
16 – AUX IN Connection
16 – PORT. IN Connection

3 Operating

17 Basic Operations
17 – CD/USB Operations
17 – Auto Play
18 Other Operations
18 – Programmed Playback
18 – Deleting Programmed list
18 – Displaying file information
18 – Searching for a folder
18 – Deleting an MP3/WMA file
19 – Turn off the sound temporarily
19 – DEMO
19 – AUTO DJ playback
20 Radio Operations
20 – Listening to the radio
20 – Presetting the Radio Stations
20 – Deleting all the saved stations
20 – Improving poor FM reception
21 Sound adjustment
21 – Setting the surround mode
22 Setting the Clock
22 – Setting the Clock through “LG

Bluetooth Remote” App
22 – Using your player as an alarm clock
22 – Sleep Timer Setting
22 – Dimmer
22 Auto power down
23 Advanced Operations
23 – Listening to the sound from your

external device
23 – Recording to USB
23 – To select recording bit rate and speed
23 – Dubbing USB to USB
24 Using a Bluetooth wireless technology
25 – Listening to music stored on the

Bluetooth devices
26 – Using Bluetooth App

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4 Troubleshooting

28 Troubleshooting

Table of Contents 5

5 Appendix

29 Specifications
30 Speaker specifications
31 Maintenance
31 – Handling the Unit
31 – Notes on Discs
31 Trademarks and Licenses

1

2

3

4

5

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Getting Started6

Unique Features

USB Direct Recording

1

Getting Started

Records music to your USB device.

AUTO DJ

Blends the end of one song into the beginning of
another for seamless playback.

Bluetooth

Listens to music stored on your Bluetooth device.

LG Bluetooth Remote

You can control this unit with your Android device
via Bluetooth. This unit and your device must be
paired for Bluetooth. Visit “Google Android Market
(Google Play Store)” or use the QR code shown
below to search for “LG Bluetooth Remote” app. For
detailed information, refer to page 26-27.

Accesories

Please check and identify the supplied accessories.

Remote Control (1) Batteries (2)

FM Antenna (1) AM Antenna (1)

(Android OS)

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Getting Started 7

Playable file
Requirement

Music file requirement

MP3/WMA le compatibility with this unit is limited
as follows.

Sampling frequency : within 32 to 48 kHz (MP3),

y

within 32 to 48 kHz (WMA)

y Bit rate : within 32 to 320 kbps (MP3),

40 to 192 kbps (WMA)
y Maximum les : Under 999
y File extensions : “.mp3”/“.wma”
y CD-ROM le format : ISO 9660/JOLIET
y We recommend that you use Easy-CD Creator,

which creates an ISO 9660 le system.

You have to set the disc format option to

y

[Mastered] in order to make the discs compatible

with the LG players when formatting rewritable

discs. When setting the option to Live File

System, you cannot use it on LG players.

(Mastered/Live File System : Disc format system

for Windows Vista)

The DTS is not supported. In case of DTS audio
format, audio is not output.

Compatible USB Devices

y MP3 Player : Flash type MP3 player.
y USB Flash Drive :

Devices that support USB2.0 or USB1.1.

y The USB function of this unit does not support

all USB devices.

USB device requirement

yDevices which require additional program

installation when you have connected it to a
computer, are not supported.

Do not extract the USB device while in operation.

y

yFor a large capacity USB, it may take longer than

a few minute to be searched.
To prevent data loss, back up all data.

y

yIf you use a USB extension cable or USB hub, the

USB device is not recognized.
Using NTFS le system is not supported.

y

(Only FAT(16/32) le system is supported.)

yThis unit is not supported when the total

number of les is 1,000 or more.

yExternal HDD, Card readers, Locked devices, or

hard type USB devices are not supported.
USB port of the unit cannot be connected to PC.

y

The unit cannot be used as a storage device.

ySome USB may not work with this unit.

1

Getting Started

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Getting Started8

Remote Control

1

Getting Started

a

b

c

d

Battery Installation

Remove the battery cover on the
rear of the Remote Control, and
insert two (size AAA) batteries
with 4 and 5 matched correctly.

• • • • • •

(Power) : Switches the unit ON

1

or OFF.

(Open/Close) : Opens and

B

closes the disc tray.

PRESETFOLDER W/S :

-

Searches for a folder of MP3/
WMA les. When a CD/USB
containing MP3/WMA les in
several folders is being played,
press PRESETFOLDER W/S
to select the folder you want to
play.

-

Chooses a preset number for a
radio station.

FUNCTION : Selects the function
and input source.

MUTE@ : Mutes the sound.
VOL +/- : Adjusts speaker volume.

• • • • • •

PROGRAM/MEMORY :

-

Stores radio stations.

-

Creates a playlist you want to
listen to.

USB REC : USB direct recording.
SLEEP : Sets the system to turn off

automatically at a specified time.
(Dimmer : The display window will
be darkened by half.)

REPEAT(MENU) : Listens to
your tracks/les repeatedly or
randomly.

C/V

-

Skips Fast backward or Forward.

-

Searches for a section within a
track/le.

TUNING-/+ : Selects the radio
station.

• • • • • •

a

• • • • • •

b

(Skip/Search) :

ENTER :

Z

-

Stops playback or recording.

-

Cancels DELETE function.

(Play/Pause) :

d/M

-

Starts or pauses playback.

-

Selects STEREO/MONO.

SOUND EFFECT : Chooses sound
impressions.

AUTO DJ : Selects the AUTO DJ
mode. (For more information refer
to page 19)

DELETE : Deletes MP3/WMA les.

• • • • • •

0 to 9 numerical buttons : Selects
numbered tracks/les, or preset
number.

INFO : Sees informations about
your music. An MP3 le often
come with ID3 tag. The tag gives
the Title, Artist, Album or Time
information.

REGION EQ : Chooses Local
Specialization equalizer.

• • • • • •

CLOCK : Sets a clock and checks a
time.

ALARM : Uses your player as an
alram clock.

SET : Conrms the setting.

• • • • • •

c

• • • • • •

d

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Front Panel

a

b

Getting Started 9

1

Getting Started

c

d

e

f

g

h

i

j

k

l

m

n

o

p

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Getting Started10

a
b

1

USB REC.

Getting Started

c 1/!

d I

e

f Y

g

h
i

Display window
USB 1/ USB 2

Plays the audio les by connecting the USB
device.

Records to USB.

(Power)

Switches the unit ON or OFF.

(Stop)

Stops playback or recording.

AUTO DJ

Selects the AUTO DJ mode.
(For more informaion refer to page 19)

(Skip/Search)

- Searches backward.

- Skips to the previous track/le.
DEMO

Demonstrates each of functions.

PORT. IN

Disc tray

FUNCTION

j

Selects the function or input source.

k T

ST./MO.

- Starts or pauses playback.

- Selects Stereo/Mono.
LATIN EQ

l

Chooses Local Specialization equalizer.

(Skip/Search)

m

U

- Searches forward.

- Skips to the next track/le.

BASS BLAST

n

Selects the BASS BLAST or BYPASS sound
directly.

Master Volume

o

Adjusts volume of speaker.

(Open/Close)

p

R

Opens or closes the disc tray.

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Rear Panel (CM4740, CM4540)

a

Getting Started 11

1

Getting Started

d

b

c

POWER IN

a

ANTENNA (FM/AM)

b

AUX IN (L/R) connectors

c

Cooling fan

d

SPEAKERS terminal/cord

e

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e

Getting Started12

Rear Panel (CM4640)

1

Getting Started

a

d

b

c

POWER IN

a

ANTENNA (FM/AM)

b

AUX IN (L/R) connectors

c

Cooling fan

d

SPEAKERS terminal

e

CM4340-AB_DPANLLK_ENG_6548.indd 12 2014-02-13  11:34:05

e

Rear Panel (CM4440, CM4340)

a

Getting Started 13

1

Getting Started

b

c

POWER IN

a

ANTENNA (FM/AM)

b

AUX IN (L/R) connectors

c

SPEAKERS terminal

d

CM4340-AB_DPANLLK_ENG_6548.indd 13 2014-02-13  11:34:06

d

Connecting14

Connecting to
speakers

Attaching the speakers to the
unit

To connect the cable to the unit, press each plastic

2

nger pad to open the connection terminals on the

Connecting

unit. Insert the wire and release the nger pad.
Connect the black stripe of each wire to the

terminals marked - (minus) and the other end to
the terminals marked + (plus).

Attaching the subwoofer to
the unit. (CM4740, CM4540)

Connect a woofer cord to the player.
When connecting a woofer cord to the player,
insert the connector until it clicks.

Color Speaker

Orange Sub woofer

Red Front R

White Front L

Caution

>

yBe careful to make sure children do not put

their hands or any objects into the *speaker
duct.
*Speaker duct: A hall for plentiful bass
sound on speaker cabinet (enclosure)

yThe speakers contain magnet parts, so color

irregularity may occur on the TV screen or
PC monitor screen. Please use the speakers
far away from either TV screen or PC
monitor.

yDo not connect any other speaker except

sub woofer speaker to the sub woofer
connection terminal on the rear of the unit.

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Connecting 15

Antenna Connection

Connect the supplied FM/AM antenna for listening
to the radio.

Connect the antenna to the antenna port on the
back of the unit. Be sure to extend the FM wire
antenna fully.

Connect the AM loop antenna to the AM antenna
connector.

Note

,

To prevent noise pickup, keep the AM Loop
antenna away from the unit and other
components.

Optional Equipment
Connection

USB Connection

Connect the USB device (or MP3 player, etc.) to the
USB port on the unit.

Note

,

Removing the USB Device from the unit.

1. Choose a different function/mode or
press Z ENTER on the remote control
or Ion the unit twice in a row.

2. Remove the USB device from the unit.

2

Connecting

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Connecting16

AUX IN Connection

Connect an output of auxiliary device(Camcoder,
TV, Player, etc) to the AUX IN(L/R) connector.

If your device has only one output for audio(mono),
connect it to the left (white) audio jack on the unit.

2

Connecting

To the audio output jacks
of your component
(Camcoder, TV, Player, etc)

PORT. IN Connection

Connect an output (earphone or line out) of
portable device (MP3 or PMP etc) to the
PORT. IN connector.

Red
White

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3 Operating

Basic Operations

Operating 17

Note

,

yThe display changes in the following order.

CD/USB Operations

1. Insert the disc by pressing
control or R on the unit.
Connect the USB device to the USB 1/2 port.

2. Select the CD or USB function by pressing
FUNCTION.

3. Select a track/file you want to play by pressing

C/V

on the unit.

Stop

Playback

Pause

Skipping to

the next/
previous
track/le

Selecting

a track/le

directly

Searching

for a section

within

a track/le

Playing

repeatedly or

randomly

on the remote control or

To Do this

Press ZENTER on the remote
control or I on the unit..

Press d/M on the remote control
or T on the unit.

During playback, press d/M on the
remote control or Ton the unit.

Press C/V on the remote
control or
skip the track/le in stop status.

During playback, press V on the
remote control or U on the unit
to go to the next track/le.

Playing less than 2 seconds, press

on the remote control or Y

C

on the unit to go to the previous
track/le.

Playing after 3 seconds, press

on the remote control or Y

C

on the unit to go to the beginning
of the track/le..

Press 0 to 9 numerical buttons on
the remote control to go to the
desired le or track directly.

Press and hold C/V on the
remote control or
the unit during playback and
release it at the point you want to
listen to.

Press REPEAT(MENU) on the
remote control repeatedly. Refer
to the note for details about the
display change.

on the remote

B

Y/U

Y/U

Y/U

on the unit to

on

USB MP3/WMA/CD AUDIO CD

RPT 1
RPT*DIR
RPT ALL

RANDOM

OFF

*DIR : Directory

yWhen you play Program list, only RPT 1 and

RPT ALL are available.

yEven after restarting the unit or switching

one function to another, you can listen to
music from the point where it’s last been
played.

yIf you leave the disc tray open for 5minutes,

it will close automatically.

RPT 1

RPT DIR

RPT ALL

RANDOM

OFF

RPT 1

-

RPT ALL

RANDOM

OFF

Auto Play

AUDIO/MP3/WMA CD is played automatically after
tray is open & closed.

Automatically switches to the CD function if tray is
open & closed when there is no disc in tray.

3

Operating

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Operating18

Other Operations

Programmed Playback

The program function enables you to store your
favorite les from any disc or USB device.

A program can contain 20 tracks/les for each
media (CD, USB1,USB2). Possible to save a total of
60 tracks/les.

1. Press PROGRAM/MEMORY on the remote
control in stop status.

2. Press

C/V

a track/file.

3. Press PROGRAM/MEMORY to save and select a

3

Operating

next track/file.

4. Repeat steps 2-3 to store other tracks/files.
(You can modify the list by pressing
PRESETFOLDER W/S to select the program
number.)

5. Press PROGRAM/MEMORY once again.

To play the programmed list, press
make the list.

Nota

,

When making or modifying the programmed
list, REPEAT mode is o.

Deleting Programmed list

Deleting function is worked only on the edit mode.

1. Press PROGRAM/MEMORY on the remote
control in stop status.

2. Select a song by pressing PROGRAM/MEMORY
or PRESETFOLDER W/S repeatedly.

3. Press DELETE while a song is selected.

on the remote control to select

d/M

after you

Note

,

yProgrammed list is cleared in the case

below.

-Removing the disc or the USB device.

-Deleting or recording music les in the
USB device.

yProgram is switched o in the case below.

-Changing the function to the others.

-Turning o and on the unit.

-Operating the numeric buttons on the
remote control.

Displaying file information

While playing an MP3 le containing le
information, you can display the information by
pressing INFO.

Searching for a folder

1. Press PRESET·FOLDER W/S on the remote
control repeatedly until a desired folder appears
in the display window.

2. Press
will be played.

to play it. The first file of the folder

d/M

Deleting an MP3/WMA file

You can delete a le, folder or format by pressing
DELETE. (USB only)

1. Press DELETE repeatedly while selecting the
MP3/WMA file. This function is supported
only in stop status. The display changes in the
following order.

- DEL FILE : Deletes file.

- DEL DIR : Deletes folder.

- FORMAT : Formats USB.

2. To delete file/folder or format, press
on the remote control or T on the unit.

3. If you want to exit the current mode,
press Z ENTER on the remote control or
press I on the unit.

d/M

Caution

>

yDo not extract the USB device during

operation.(play, delete, etc.)

yRegular back up is recommended to

prevent data loss.

yThe delete function may not be supported

according to the USB status.

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Operating 19

Turn off the sound temporarily

Press MUTE@ on the remote control to mute
your sound.

You can mute your unit, for example, to answer the
telephone, the “MUTE” will appear in the display
window.

To cancel it, press MUTE@again or change the
volume level.

DEMO

In power o state, press DEMO on the unit once.
The unit will power on and display the each of
functions in the display window. To cancel the
DEMO function, press DEMO once more.

Note

,

You can enjoy other functions during
the DEMO. Then the DEMO will pause to
temporary.

- Without input key in 10 sec, the DEMO
will play back automatically.

AUTO DJ playback

Auto DJ blends the end of one song into the
beginning of another for seamless playback. It
equalizes volume across tracks for uninterrupted
playback.

Press AUTO DJ on the remote control or unit
repeatedly, the display changes as followings.
RANDOM (AUTO DJ RANDOM) -> RPT (AUTO DJ
SEQUENTIAL) -> (AUTO DJ OFF)

Mode

OFF

RANDOM

REPEAT

ySearching for a section within a track/le

or playing repeatedly or randomly is not
supported on the AUTO DJ mode.

yDuring AUTO DJ mode, it is not available to

search le by pressing PRESETFOLDER

W/S

yIf you move to other functions or stop the

music using I on the unit (or Z ENTER on
the remote control) on AUTO DJ mode,
AUTO DJ will be disable.

yAUTO DJ is not supported in the music le

whose length is less than 60 seconds.
yDuring recording, AUTO DJ is not available.
yOnly AUTO DJ SEQUENTIAL is selected when

played Program list.

Display

Window

-

(AUTO DJ OFF)

RANDOM
(AUTO DJ

RANDOM)

RPT

(AUTO DJ

SEQUENTIAL)

Note

,

on the remote control.

Description

-

The music is

played randomly

on this mode.

The music is

played repeatedly

on this mode.

3

Operating

CM4340-AB_DPANLLK_ENG_6548.indd 19 2014-02-13  11:34:07

Operating20

Radio Operations

Be sure that FM/AM antenna is connected.
(Refer to page 15)

Listening to the radio

1. Press FUNCTION until FM or AM appears in the
display window.
The last received station is tuned in.

2. Auto tuning : Press TUNING -/+ on the remote
control or
seconds until the frequency indication starts
changing, then release. scanning stops when

3

Operating

the unit tunes in a station.

Manual tuning: Press TUNING -/+ on the

remote control or
repeatedly.

3. Adjust the volume by pressing VOL +/- on the
remote control or by rotating volume knob on
the unit repeatedly.

Y/U

on the unit for about 2

Y/U

on the unit

Presetting the Radio Stations

You can preset 50 stations for FM and AM.
Before tuning, make sure to turn down the volume.

1. Press FUNCTION until FM/AM appears in the
display window.

2. Select the desired frequency by pressing
TUNING-/+ on the remote control or

Y/U

3. Press PROGRAM/MEMORY. A preset number
will blink in the display window.

4. Press PRESET·FOLDER W/S to select the
preset number you want.

5. Press PROGRAM/MEMORY on the remote
control . The station is stored.

6. Repeat steps 2 to 5 to store other stations.

7. To listen to a preset station, press
PRESET·FOLDER W/S or 0 to 9 numerical
buttons.

on the unit.

Deleting all the saved stations

1. Press and hold PROGRAM/MEMORY for two
seconds. “ERASEALL” will blink in the unit display.

2. Press PROGRAM/MEMORY to erase all saved
radio stations.

Improving poor FM reception

Press d/M on the remote control or T on the
unit. This will change the tuner from stereo to
mono. Then the reception will be better than
before.

CM4340-AB_DPANLLK_ENG_6548.indd 20 2014-02-13  11:34:07

Sound adjustment

Setting the surround mode

This system has a number of pre-set surround
sound elds. You can select a desired sound mode
by using SOUND EFFECT on the remote control.

The displayed items for the Equalizer may be
dierent depending on sound sources and eects.

On Display Description

NATURAL

Local

Specialization

equalizer

AUTO EQ

POP

CLASSIC

JAZZ

ROCK

MP3 -- OPT

BASS

LOUDNESS

FOOT BALL

BYPASS

You can enjoy comfortable and
natural sound.

Regionally optimized sound
eect. (FORRO/FUNK/
SERTANEJO/DANGDUT/ARABIC/
PERSIAN/INDIA/REGUETON/
MERENGUE/SALSA/SAMBA/
CUMBIA/AFRO)

Realizes the sound equalizer that
is the most similar to the genre
of which is included in the MP3
ID3 tag of song les.

This program lends an
enthusiastic atmosphere to the
sound, giving you the feeling
you are at an actual rock pop,
jazz or classic concert.

This function is optimized
for compressible MP3 le. It
improves the treble sound.

Reinforces the treble, bass and
surround sound eect.

Improves the bass and treble
sound.

You can enjoy the sound eect
FOOTBALL STADIUM.

You can enjoy the sound
without equalizer eect.

Operating 21

Note

,

y On some speakers, sound may not be heard

or heard in low sound depending on the
sound mode.

y Maybe you need to reset the surround

mode, after switching the input, sometimes
even after the sound track changed.

yBy pressing BASS BLAST on the unit you

can directly select the BYPASS or BASS
BLAST sound.

yBy pressing LATIN EQ on the unit, you can

directly select various latin equalizers.

3

Operating

CM4340-AB_DPANLLK_ENG_6548.indd 21 2014-02-13  11:34:07

Operating22

Setting the Clock

1. Turn the unit on.

2. Press and hold CLOCK.

3. Select time mode by pressing
the remote control.

- AM 12:00 (for an AM and PM display) or 0:00

(for a 24 hour display)

4. Press SET to confirm your selection.

5. Select the hours by pressing
remote control.

6. Press SET.

7. Select the minutes by pressing

3

Operating

the remote control.

8. Press SET.

Setting the Clock through
“LG Bluetooth Remote” App

Install “LG Bluetooth Remote” app on your Android
device. (see page 26-27)

Your unit’s clock will be automatically synchronized
with your device by activating Bluetooth

connection through “LG Bluetooth Remote” app.

Using your player as an alarm
clock

1. Turn the unit on.

2. Press and hold ALARM.

3. Press

C/V

change the hours and minutes and press SET to
save.

4. Press

C/V

select function and press SET to save.

5. Press

C/V

change the volume and press SET to save. The
clock icon “(“ shows that the alarm

on the remote control to

on the remote control to

on the remote control to

C/V

C/V

C/V

on

on the

on

Note

,

yIf you set the clock time, you can check the

time by pressing CLOCK even when the
player is turned o.

yIf you set the clock time and alarm, you

can check the alarm icon “(“ by pressing
CLOCK even when the player is turned o.

yIf you set the clock time and alarm, you

can check the alarm icon “(“ and setting
informaiton by pressing ALARM even when
the unit is turned o.

yPress ALARM, you can selects a ALARM

on / o mode.

Sleep Timer Setting

Press SLEEP repeatedly to select delay time
between 10 and 180 minutes. After the delay time,
the unit will be turned o.

To cancel the sleep function, press SLEEP
repeatedly until “SLEEP 10” appears, and then press
SLEEP once again while “SLEEP 10” is displayed.

Note

,

yYou can check the remaining time before

the unit is turned o.

yPress SLEEP. The remaining time appears in

the display window.

Dimmer

Press SLEEP once. The display window will
be darkened by half. To cancel it, press SLEEP
repeatedly until dim o.

Auto power down

This unit will turn o itself to save electric
consumption in the case were main unit is not
connected to external device and is not used for 20
minutes.
So does this unit after six hours since Main unit has
been connected to other device using analogue
input.

CM4340-AB_DPANLLK_ENG_6548.indd 22 2014-02-13  11:34:07

Operating 23

Advanced Operations

Listening to the sound from
your external device

The unit can be used to play the sound from many
types of external device. (Refer to page 16)

1. Connect the external device to the AUX IN(L/R)
or PORT. IN connector of the unit.

2. Turn the power on by pressing
remote control or

3. Select the AUX or PORTABLE function by
pressing FUNCTION.

4. Turn the external device and start playing it

1/!

on the unit.

Recording to USB

You can record a various sound source to USB.
(CD, USB, AUX, PORTABLE, FM, AM)

1. Connect the USB device to the unit.

2. Select a function by pressing FUNCTION.
One track/file recording - You can record to USB

after playing a track/file you want.

All tracks/files recording - You can record to USB
after stop.

Program list recording - After showing the
programmed list, you can record it to USB.
(Refer to page 18)

3. Start the recording by pressing USB REC on the
remote control or

- If you connect both USB1 and USB2, press

USB REC on the remote control or

USB REC. on the unit when USB1 or
USB2 which you want to record blinks in the
display window.

4. To stop recording, press
remote control or I on the unit.

Pausing recording

During recording, press d/M on the remote control
or T on the unit to pause recording. Press it again
to restart recording.
(Only TUNER, AUX, PORTABLE)

USB REC. on the unit.

on the

1

ENTER on the

Z

To select recording bit rate
and speed

1. Press USB REC on the remote control or
USB REC. on the unit for longer than 3

seconds.

2. Use

C/V

Y/U

3. Press USB REC on the remote control or
USB REC. on the unit again to select the

recording speed.

4. Press

C/V

Y/U

recording speed : (AUDIO CD only)
X1 SPEED

- You can listen to music while recording it.

X2 SPEED

- You can just record the music file.

5. Press USB REC on the remote control or
USB REC. on the unit to finish the setting.

on the remote control or

on the unit to select the bit rate.

on the remote control or

on the unit to select a desired

Dubbing USB to USB

You can do dubbing various sound sources in USB1
to USB2 on USB function.

1. Connect a USB device including desired sound

files to USB1.

2. Connect another USB device to USB2.

3. Start the recording by pressing USB REC on the

remote control or

4. To stop recording, press

remote control or I on the unit.

The making of unauthorized copies of copy-

protected material, including computer

programs, les, broadcasts and sound

recordings, may be an infringement of
copyrights and constitute a criminal oense.
This equipment should not be used for such

Respect copyrights

USB REC. on the unit.

ENTER on the

Z

purposes.

Be responsible

3

Operating

CM4340-AB_DPANLLK_ENG_6548.indd 23 2014-02-13  11:34:08

3

Operating

Operating24

Note

,

yIt is not supported to record music stored

on bluetooth device.

yYou can check the recording percentage

rate for the USB record on the display
window during the recording.
(MP3/WMA CD Only)

yDuring recording MP3/WMA, there is no

sound.

yWhen you stop recording during playback,

the le that has been recorded at that time
will be stored. (Except MP3/WMA les)

yDo not remove the USB device or turn

o the unit during USB recording. If not,
an incomplete le may be made and not
deleted on PC.

yIf USB recording does not work, the

message like “NO USB”, “ERROR”, “FULL” or
“NO REC” is displayed on the display
window.

yMulti card reader device or External HDD

can not be used for USB recording.

yA le is recorded by about 512 Mbyte when

you record for a long term.
yYou may not store more than 999 les.
yYou can not record in AUTO DJ mode.
yIt’ll be stored as follows.

Using a Bluetooth
wireless technology

About Bluetooth

Bluetooth® is wireless communication technology
for short range connection.

The sound may be interrupted when the
connection is interfered by the other electronic
wave or you connect the bluetooth in the other
rooms.
Connecting individual devices under Bluetooth®
wireless technology does not incur any charges. A
mobile phone with Bluetooth® wireless technology
can be operated via the Cascade if the connection
was made via Bluetooth® wireless technology.

Available Devices : Mobile phone, MP3, Laptop,
PDA.

Bluetooth Profiles

In order to use Bluetooth® wireless technology,
devices must be able to interpret certain proles.
This unit is compatible with following prole.

A2DP (Advanced Audio Distribution Prole)

AUDIO CD MP3/WMA

The other source* TUNER

TUNER : The current recording frequency is
shown.

* : AUX, PORTABLE and the like.

CM4340-AB_DPANLLK_ENG_6548.indd 24 2014-02-13  11:34:08

Listening to music stored on
the Bluetooth devices

Before you start the pairing procedure, make
sure the Bluetooth feature is turned on in to your
Bluetooth device. Refer to your Bluetooth device’s
user guide. Once a pairing operation is performed,
it does not need to be performed again.

1. Select the Bluetooth function by using the
FUNCTION.
“BT READY” appears on the display window.

2. Operate the Bluetooth device and perform the
pairing operation. When searching for this unit
with the Bluetooth device, a list of the devices
found may appear in the Bluetooth device
display depending on the type of Bluetooth
device. Your unit appears as “LG MINI (XX:XX)”.

Note

,

XX:XX means the last four digits of BT address.
For example, if your unit has a BT address such as
9C:02:98:4A:F7:08, you will see “LG MINI (F7:08)”
on your Bluetooth device.

3. Enter the PIN code.
PIN code : 0000

Note

,

Depending on the Bluetooth device type,
some device have a dierent pairing way.

4. When this unit successfully paired with your
Bluetooth device, “BT PAIR” appears in the
display window.

5. Listening to music.
To play a music stored on your Bluetooth device,
refer to your Bluetooth device’s user guide.
According to your mobile phone’s volume level,
the volume level of Bluetooth will be adjusted.

Note

,

ySound from the main set can be distorted

if you raise the volume of Bluetooth device
up to two-thirds or more.

yWhen you use the Bluetooth function,

adjust the volume of a Bluetooth device to
a proper level to listen to.

Operating 25

Note

,

yWhen using Bluetooth® technology, you

have to make a connection between the
unit and the bluetooth device as close as
possible and keep the distance.
However it may not work well in the case
below :

-There is a obstacle between the unit and
the bluetooth device.

-There is a device using same frequency
with Bluetooth® technology such as a
medical equipment, a microwave or a
wireless LAN device.

yYou should connect your Bluetooth device

to this unit again when you restart it.

yThe sound may be interrupted when

the connection interfered by the other
electronic wave.

yYou cannot control the Bluetooth device

with this unit.

yPairing is limited one Bluetooth device per

one unit and multi-pairing is not supported.

yDepending on the type of the device,

you may not be able to use the Bluetooth
function.

yYou can enjoy wireless system using phone,

MP3, Notebook, etc..

yWhen not connected the Bluetooth, “BT” and

“BT READY” appears on the control panel.

yWhen someone stands and interrupts

communication between Bluetooth device
and the player, the connection will be
disconnected.

yThe more distant between the unit and

the bluetooth device, the lower the sound
quality becomes.

yWhen Bluetooth connection is

disconnected, connect the bluetooth device
to the unit again.

yAfter your device is connected to the unit

via Bluetooth, the function switches to BT
automatically. But while recording, it doesn’t
switch to BT.

3

Operating

CM4340-AB_DPANLLK_ENG_6548.indd 25 2014-02-13  11:34:08

Operating26

Using Bluetooth App

About “LG Bluetooth Remote” App

“LG Bluetooth Remote” app brings a suite of new
features to this unit.

To enjoy more features, you are recommended to
download and install free “LG Bluetooth Remote”
app.

Install “LG Bluetooth Remote App”
by using QR code

1. Install “LG Bluetooth Remote” app through QR
code. Use the scanning software to scan the QR

3

Operating

code.

(Android OS)

2. Tap an icon for installation.

3. Tap an icon for downloading.

Note

,

yMake sure that your Bluetooth device is

connected to the Internet.

yMake sure that your Bluetooth device has a

scanning software application. If you don’t
have one, download one from “Google
Android Market (Google Play Store)”.

Install “LG Bluetooth Remote” App
through “Google Android Market
(Google Play Store)”

1. Tap the “Google Android Market (Google Play
Store)” icon.

2. In the search bar, type in the “LG Bluetooth
Remote” and search it.

3. In the search result list, find and tap
“LG Bluetooth Remote” to start downloading
Bluetooth app.

4. Tap an icon for installation.

5. Tap an icon for downloading.

Note

,

yMake sure that your Bluetooth device is

connected to the Internet.

yMake sure that your Bluetooth device is

equipped with “Google Android Market
(Google Play Store)”.

yIf you want to get more information, refer

to explanation of BT app in “Google Android
Market (Google Play Store)”.

CM4340-AB_DPANLLK_ENG_6548.indd 26 2014-02-13  11:34:08

Activate Bluetooth with
“LG Bluetooth Remote” App

“LG Bluetooth Remote” app helps to connect your
bluetooth device to this unit.

1. Tap “LG Bluetooth Remote” app icon on the
home screen to open “LG Bluetooth Remote”
app, and go to the main menu.

2. Tap [Setting] and select the unit you want.

3. If you want to get more information to operate,
tap [Setting] and [Help].

Note

,

yBT app will be available in the software

version as follow;

-Android O/S : Ver 2.3.3 (or later)

yThis unit does not support the multi-pairing.

If this unit is already connected with other
Bluetooth device, disconnect that device
and then try again

yIf you use “LG Bluetooth Remote” app for

operation, there would be some dierences
between “LG Bluetooth Remote” app and the
supplied remote control. Use the supplied
remote control as necessary.

yDepending on the Bluetooth device,

“LG Bluetooth Remote” app may not work.

yThe connection you’ve made may be

disconnected if you select other application
or change the setting of the connected
device via “LG Bluetooth Remote” app. In
such a case, please check the connection
status.

yTo prevent a malfunction, you are

recommended to connect only one device
to this unit.

yAfter connection of BT app, music may be

output from your device. In this case, try
connecting procedure again.

Operating 27

3

Operating

CM4340-AB_DPANLLK_ENG_6548.indd 27 2014-02-13  11:34:08

Troubleshooting28

Troubleshooting

Problem Cause & Correction

No Power.

No sound.

The unit does not start
playback.

4

Troubleshooting

Radio stations cannot be
tuned in properly.

yThe power cord is not plugged in. Plug in the power cord.

Check whether electricity failed. Check the condition by operating other

y

electronic devices.

Check whether you select right function. Press FUNCTION and check the

y

selected function.

ySpeaker cables are not connected correctly. Connect speaker cables correctly.

An unplayable disc is inserted. Insert a playable disc.

y

yNo disc is inserted. Insert a disc.

The disc is dirty. Clean the disc. (Refer to 31 page)

y

yThe disc is inserted upside down. Place the disc with the label or printed side

facing upwards.

The antenna is positioned or connected poorly. Connect the antenna securely.

y

The signal strength of the radio station is too weak. Tune to the station

y

manually.

yNo stations have been preset or preset stations have been cleared (when

being tuned by scanning preset channels). Preset some radio stations, see
page 20 for details.

yThe remote control is too far from the unit. Operate the remote control within

about 23 ft (7 m).
There is an obstacle in the path of the remote control and the unit. Remove

The remote control does
not work properly.

CM4340-AB_DPANLLK_ENG_6548.indd 28 2014-02-13  11:34:09

y

the obstacle.

yThe batteries in the remote control are exhausted. Replace the batteries with

new ones.

Appendix 29

Specifications

General

Model CM4740 CM4640 CM4540 CM4440 CM4340
Power requirements Refer to the main label.
Power consumption Refer to the main label.
Dimensions (W x H x D) (206 x 308 x 284) mm
Net Weight (Approx.) 3.1 kg 3.1 kg 3.0 kg 3.0 kg 3.0 kg
Operating temperature 5 °C to 35 °C (41 °F to 95 °F)
Operating humidity 5 % to 90 %
Bus Power Supply 5 V 0 500 mA

Inputs

AUX IN 2.0 Vrms (1 kHz, 0 dB), 75 , RCA jack (L, R)
Port In 1.2 Vrms (3.5 mm stereo jack)

Tuner

FM Tuning Range 87.5 to 108.0 MHz or 87.50 to 108.00 MHz
AM Tuning Range 522 to 1620 kHz, 520 to 1710 kHz or 522 to 1710 kHz

5

Appendix

Amplier

Model CM4740 CM4640 CM4540 CM4440 CM4340

Stereo mode

Surround
mode

Front

Subwoofer

270 W + 270 W
(3  at 1 kHz,
THD 20 %)

270 W + 270 W

k

Hz,

(3  at 1
THD 20 %)

260 W (3  at
60 Hz, THD
20 %)

275 W + 275 W

k

Hz,

(3  at 1
THD 20 %)

275 W + 275 W
(3  at 1 kHz,
THD 20 %)

-

200 W + 200 W
(3  at 1 kHz,
THD 20 %)

200 W + 200 W
(3  at 1 kHz,
THD 20 %)

200 W (3  at
60 Hz, THD
20 %)

200 W + 200 W
(3  at 1 kHz,
THD 20 %)

200 W + 200 W
(3  at 1 kHz,
THD 20 %)

- -

110 W + 110 W
(4  at 1 kHz,
THD 20 %)

110 W + 110 W
(4  at 1 kHz,
THD 20 %)

CD

Frequency Response 100 to 20,000 Hz
Signal-to-noise ratio 75 dB
Dynamic range 75 dB

CM4340-AB_DPANLLK_ENG_6548.indd 29 2014-02-13  11:34:09

Appendix30

Speaker specifications

Front speaker

Model CMS4740F CMS4540F CMS4340F
Type 2 Way 2 Speaker
Impedance 3 

Rated Input Power 275 W
Max. Input power 550 W
Net Dimensions (W x H x D) (300 x 358 x 265) mm (266 x 306 x 263) mm (200 x 306 x 200) mm
Net Weight 5.5 kg 3.1 kg

Subwoofer speaker

Model CMS4740W CMS4540W
Type 1 Way 1 Speaker
Impedance 3 
Rated Input Power 260 W 200 W
Max. Input power 520 W 400 W
Net Dimensions (W x H x D) (310 x 358 x 305) mm (266 x 306 x 232) mm
Net Weight 5.7 kg 4.7 kg

5

Appendix

yDesign and specications are subject to change without notice.

200 W
400 W

4 Ω
110 W
220 W

2.2 kg

CM4340-AB_DPANLLK_ENG_6548.indd 30 2014-02-13  11:34:09

Appendix 31

Maintenance

Handling the Unit

When shipping the unit

Please save the original shipping carton and
packing materials. If you need to ship the unit, for
maximum protection, re-pack the unit as it was
originally packed at the factory.

Keeping the exterior surfaces clean

Do not use volatile liquids such as insecticide spray
near the unit.

Wiping with strong pressure may damage the
surface.

Do not leave rubber or plastic products in contact
with the unit for a long period of time.

Cleaning the unit

To clean the player, use a soft, dry cloth. If the
surfaces are extremely dirty, use a soft cloth lightly
moistened with a mild detergent solution. Do not
use strong solvents such as alcohol, benzine, or
thinner, as these might damage the surface of the
unit.

Maintaining the Unit

The unit is a high-tech, precision device. If the
optical pick-up lens and disc drive parts are dirty
or worn, the picture quality could be diminished.
For details, please contact your nearest authorized
service center.

Notes on Discs

Handling Discs

Never stick paper or tape on the disc.

Storing Discs

After playing, store the disc in its case. Do not
expose the disc to direct sunlight or sources of heat
and never leave it in a parked car exposed to direct
sunlight.

Cleaning Discs

Do not use strong solvents such as alcohol,
benzine, thinner, commercially available cleaners,
or anti-static spray intended for old vinyl records.

Trademarks and
Licenses

Bluetooth® wireless technology is a system which
allows radio contact between electronic devices.

Connecting individual devices under Bluetooth®
wireless technology does not incur any charges.
A mobile phone with Bluetooth® wireless
technology can be operated via the Cascade if
the connection was made via Bluetooth® wireless
technology.

The Bluetooth® word mark and logos are owned
by the Bluetooth® SIG, Inc. and any use of such
marks by LG Electronics is under license.

Other trademarks and trade names are those of
their respective owners.

5

Appendix

CM4340-AB_DPANLLK_ENG_6548.indd 31 2014-02-13  11:34:10

CM4340-AB_DPANLLK_ENG_6548.indd 32 2014-02-13  11:34:10