LG CMS4550W, CMS4550F, CM4550 User Manual

OWNER’S MANUAL

Mini Hi-Fi
System

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

CM4550 (CM4550, CMS4550F, CMS4550W)

P/NO : MFL69181412_REV1.0

www.lg.com

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: This product contains chemicals known
to the State of California to cause cancer and birth
defects or other reproductive harm. Wash hands

after handling.

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. The
Power Plug is the disconnecting device. In case of
an emergency, the Power Plug must remain readily
accessible.

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.

CAUTION: Do not use high voltage products
around this product. (ex. Electrical swatter) This
product may malfunction due to electrical shock.

Getting Started 3

1

Getting Started

Getting Started4

IMPORTANT SAFETY
INSTRUCTIONS

1

Getting Started

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with dry cloth.

7. Do not block any ventilation openings.
Install in accordance with the manufacturer’s
instructions.

8. Do not install near any heat sources such
as radiators, heat registers, stoves, or other
apparatus (including amplifiers) that produce
heat.

9. Do not defeat the safety purpose of the
polarized or grounding-type plug. A polarized
plug has two blades with one wider than the
other. A grounding type plug has two blades
and a third grounding prong. The wide blade or
the third prong are provided for your safety. If
the provided plug does not fit into your outlet,
consult an electrician for replacement of the
obsolete outlet.

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

11. Only use attachments/accessories specified by
the manufacturer.

12. Use only with the cart, stand, tripod, bracket, or
table specified by the manufacturer, or sold with
the apparatus. When a cart is used, use caution
when moving the cart/apparatus combination
to avoid injury from tip-over.

13. Unplug this apparatus during lightning storms
or when unused for long periods of time.

14. Refer all servicing to qualified service personnel.
Servicing is required when the apparatus has
been damaged in any way, such as power­supply 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.

Getting Started 5

FCC Compliance Statement
This device complies with part 15 of the FCC
rules. Operation is subject to the following two
conditions:

(1) This device may not cause harmful interference,
and
(2) This device must accept any interference
received, including interference that may cause
undesired operation.

NOTE: 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 o and
on, the user is encouraged to try to correct the
interference by one or more of the following
measures:

y Reorient or relocate the receiving antenna.

y Increase the separation between the equipment

and receiver.

y Connect the equipment into an outlet on a

circuit dierent from that to which the receiver
is connected.

y Consult the dealer or an experienced radio/T V

technician for help.

CAUTION : Any changes or modications not
expressly approved by the party responsible for
compliance could void the user’s authority to
operate this equipment.

FCC WARNING: This equipment may generate
or use radio frequency energy. Changes or
modications to this equipment may cause harmful
interference unless the modications are expressly
approved in the instruction manual. The user could
lose the authority to operate this equipment if an
unauthorized change or modication is made.

FCC RF Radiation Exposure Statement : This
equipment complies with FCC radiation exposure
limits set forth for an uncontrolled environment.
This equipment should be installed and operated
with minimum distance 20 cm between the
radiator and your body. End users must follow the
specic operating instructions for satisfying RF
exposure compliance. This transmitter must not be
co-located or operating in conjunction with any
other antenna or transmitter.

CAUTION: Regulations of the FCC and FAA prohibit
airborne operation of radio-frequency wireless
devices because their signals could interfere with
critical aircraft instruments.

Responsible Party :
LG Electronics USA, Inc. 1000 Sylvan Avenue
Englewood Clis, NJ 07632
TEL. : [phone]

1

Getting Started

Table of Contents6

Table of Contents

1 Getting Started

2 Safety Information
8 Unique Features
8 Accesories
9 Playable file Requirement
9 – Music file requirement
9 – Compatible USB Devices
9 – USB device requirement
10 Remote control
12 Front Panel
14 Rear Panel

2 Connecting

15 Connecting to speakers
15 – Attaching the speakers to the unit
16 Optional Equipment Connection
16 – Antenna Connection
16 – USB Connection
17 – AUX IN Connection
17 – PORT. IN Connection
17 – Listening to the sound from your

external device

3 Operating

18 Basic Operations
18 – CD/USB Operations
18 – Auto Play
19 Other Operations
19 – Programmed Playback
19 – Deleting Programmed list
19 – Displaying file information (ID3 TAG)
20 – Searching for a folder and an MP3/

WMA file
20 – Deleting an MP3/WMA file
21 – Turn off the sound temporarily
21 – DEMO
21 – AUTO DJ playback
22 Using a BLUETOOTH® wireless

technology

22 – Listening to music stored on the

BLUETOOTH devices
24 Using the Music Flow Bluetooth App
24 – Install “Music Flow Bluetooth” App

onto Your Bluetooth Device
26 Radio Operations
26 – Listening to the radio
26 – Improving poor FM reception
26 – Presetting the Radio Stations
26 – Deleting all the saved stations
27 Sound adjustment
27 – Setting the surround mode
28 Advanced Operations
28 – Recording to USB
28 – To select recording bit rate and speed
29 – USB copying
30 Setting the Clock
30 – Setting the Clock through

“Music Flow Bluetooth” App
30 – Using your player as an alarm clock
31 – Sleep Timer Setting
31 – Dimmer
32 – Auto power down
32 – AUTO POWER On
32 – Auto function change
33 LG Sound Sync

4 Troubleshooting

34 Troubleshooting

Table of Contents 7

5 Appendix

35 General specifications
36 Speaker specifications
37 Maintenance
37 – Handling the Unit
37 – Notes on Discs
37 Trademarks and Licenses

1

2

3

4

5

Getting Started8

Unique Features

BLUETOOTH®

1

Getting Started

Listens to music stored on your Bluetooth device.

Portable In

Listens to music from your portable device. (MP3,
Notebook, etc.)

AUTO DJ

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

USB Direct Recording

Records music to your USB device.

Music Flow Bluetooth

Music Flow Bluetooth is an app designed to let you
take control of some of LG’s latest Audio devices.

Refer to page 24-25

LG Sound Sync

Controls volume level of this unit by the remote
control of your LG TV that is compatible with LG
Sound Sync.

Accesories

Please check and identify the supplied accessories.

Remote Control (1) Batteries (2)

FM Antenna (1)

Getting Started 9

Playable file Requirement

Music file requirement

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

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

within 32 to 48 kHz (WMA)

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

40 to 192 kbps (WMA)

y Maximum les : Data CD : 999 / USB : 2000

y Maximum folders : Data CD : 99 / USB : 200

y File extensions : “.mp3”/“.wma”

y Certain MP3/WMA les may not be played

depending on the type or format of the le.

y CD-ROM le format : ISO 9660/JOLIET

y We recommend that you use Easy-CD Creator,

which creates an ISO 9660 le system.

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

You have to set the disc format option to
[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)

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

y Devices which require additional program

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

y Do not extract the USB device while in

operation.

y For a large capacity USB, it may take longer than

a few minute to be searched.

y To prevent data loss, back up all data.

y If you use a USB extension cable or USB hub, the

USB device is not recognized.

y Using NTFS le system is not supported.

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

y This unit recognizes up to 2000 les.

y External HDD, Card readers, Locked devices, or

hard type USB devices are not supported.

y USB port of the unit cannot be connected to PC.

The unit cannot be used as a storage device.

y Some USB may not work with this unit.

1

Getting Started

Getting Started10

Remote control

1

Getting Started

• • • • • • • • • • a • • • • • • • • •

1 (Power) : Switches the unit ON or OFF.
B (Open/Close) : Opens and 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.

- Deletes all the saved stations.

- Creates a programmed list 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.)

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.

Getting Started 11

• • • • • • • • • • b • • • • • • • • •

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

C/V (Skip/Search) :

- Skips fast backward or forward.

- Searches for a section within a track/le.

TUNING -/+ : Selects the radio station.
Z ENTER :

- Stops playback or recording.

- Cancels DELETE function.

d/M (Play/Pause) :

- 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 21)

DELETE :

- Deletes MP3/WMA les.

- Deletes a song on the programmed list.

• • • • • • • • • • c • • • • • • • • •

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.

- Sees the address of connected Bluetooth

device in Bluetooth mode.

REGION EQ : Chooses region equalizer.

• • • • • • • • • • d • • • • • • • • •

CLOCK : Sets a clock and checks a time.

ALARM : With the ALARM function you can turn

CD, USB play and Tuner reception on at a desired
time.

SET : Conrms the setting.

1

Getting Started

Getting Started12

Front Panel

1

Getting Started

a

b

c

d

e

f

g

h

i

j

k

l

m

n

o

p

Getting Started 13

a Display window
b USB 1/ USB 2

Plays the audio les by connecting the USB
device.

USB REC.

Records to USB.

c 1/! (Power)

Switches the unit ON or OFF.

d I (Stop)

Stops playback or recording.

e AUTO DJ

Selects the AUTO DJ mode.
(For more information refer to page 21)

f Y (Skip/Search)

- Searches backward.

- Skips to the previous track/le.

g DEMO

Shows demo mode.

h PORT. IN
i Disc tray

j FUNCTION

Selects the function or input source.

k T

ST./MO.

- Starts or pauses playback.

- Selects Stereo/Mono.

l LG EQ

You can choose sound impressions.

m U (Skip/Search)

- Searches forward.

- Skips to the next track/le.

n BASS BLAST

Selects BASS or STANDARD eect directly.

o Master Volume

Adjusts volume of speaker.

p R (Open/Close)

Opens or closes the disc tray.

1

Getting Started

Getting Started14

Rear Panel

1

Getting Started

a

POWER IN

b

c

a POWER IN
b ANTENNA (FM)
c AUX IN (L/R) connectors
d SPEAKERS terminal/cord

d

Connecting 15

Connecting to speakers

Attaching the speakers to the unit

To connect the cable to the unit, press each plastic
nger pad to open the connection terminals on
the 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

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

Color Speaker

Orange Subwoofer

Red Front R

White Front L

Caution

>

y Be careful to make sure children do not put

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

y The 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.

y Do not connect any other speaker except

subwoofer speaker to the subwoofer
connection terminal on the rear of the unit.

2

Connecting

Connecting16

Optional Equipment Connection

Antenna Connection

Connect the supplied FM antenna for listening to
the radio.

2

Connect the antenna to the antenna port on the

Connecting

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

FM

USB Connection

Connect a USB device (or MP3 player, etc.) to the
USB ports 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 I on the unit twice in a row.

2. Remove the USB device from the unit.

Connecting 17

AUX IN Connection

Connect an output of auxiliary device (Camcorder,
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.

Red

White

To the audio output jacks
of your component
(Camcorder, 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.

2

Connecting

PORT.IN

Listening to the sound from your external device

The unit can be used to play the sound from many
types of external device.

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 1 on the
remote control or 1/! on the unit.

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

4. Turn the external device and start playing it.

Operating18

Basic Operations

Note

,

y The display changes in the following order.

CD/USB Operations

1. Insert the disc by pressing B on the remote
control or R on the unit
Or connect the USB device to the USB port.

2. Select CD or USB function by pressing
FUNCTION.

To Do this

Press Z ENTER 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 T on the unit.

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

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

- In stop status,

Press C/V on the remote
control or Y/U on the unit to
go to the next/previous track/le.

- 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
C on the remote control or Y
on the unit to go to the previous
track/le.

Playing after 3 seconds, press C
on the remote control or Y on
the unit to go to the beginning of
the track/le.

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

3

Operating

Stop

Playback

Pause

Searching

for a section

within

a track/le

Selecting

a track/le

directly

Skipping to

the next/

previous
track/le

Playing

repeatedly or

randomly

USB MP3/WMA CD AUDIO CD

RPT 1

RPT*DIR

RPT ALL

RANDOM

OFF

*DIR : Directory

y When you play Program list, only RPT 1 and

RPT ALL are available.

y Even after restarting the unit or switching

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

y If you leave the disc tray open for 5 minutes,

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
disc tray is open and then closed.

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

Operating 19

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 on the remote control to select
a track/file.

3. Press PROGRAM/MEMORY to save and select a
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 d/M after you
make the list.

Note

,

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

Deleting Programmed list

Deleting function only works in 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.

Note

,

y Programmed list is cleared in the case

below.

- Removing the disc or the USB device.

- Deleting music les in the USB device.

- Unplugging the Power Cord.

y Program is switched o in the case below.

- Changing to a dierent function.

- Turning o and on the unit.

- Operating the numeric buttons on the

remote control.

Displaying file information (ID3 TAG)

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

3

Operating

Operating20

Searching for a folder and an MP3/WMA file

1. Press PRESET·FOLDER W/S on the remote

control repeatedly until a desired folder appears
in the display window.

2. Press d/M to play it. The first file of the folder

will be played.

Note

,

y USB/CD Folders/Files are recognized as

below.

ROOT

3

Operating

FOLDER1

FOLDER3

FOLDER4

FILE 3

FILE 4

FOLDER2

FOLDER5

FOLDER6

FILE 1

FILE 2

FOLDER7

FOLDER8

y If there is no le in a folder, the folder will

not appear.

y Folders will be presented as the following

order;
ROOT

FOLDER1 FOLDER3 FOLDER7

FOLDER8 FOLDER5 FOLDER6

y File will be played from $ le No.1 to $ le

No.14 one by one.

y Files and folders will be presented in order

recorded and may be presented dierently
according to the record circumstances.

y *ROOT : The rst screen you can see when

a computer recognize the USB/CD is “ROOT”.

FILE 5

FILE 6

FILE 7

FILE 11

FILE 12

FILE 13

FILE 14

FOLDER

FILE

FILE 8

FILE 9

FILE 10

Deleting an MP3/WMA file

You can delete le, folder or format by pressing
DELETE on the remote control. This function is
supported only in stop status. (USB only)

1. - Select the file you want to delete and press
DELETE on the remote control.

- Select the folder you want to delete by
pressing PRESETFOLDER W/Son the remote
control and press DELETE on the remote
control.

- Press and hold DELETE on the remote control
to format the USB device.

Or

Press DELETE on the remote control repeatedly
during selecting the MP3/WMA file.

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 d/M

on the remote control or T on the unit.

If you want to exit the current mode,

press Z ENTER on the remote control or
press I on the unit.

Caution

>

y Do not extract the USB device during

operation. (play, delete, etc.)

y Regular back up is recommended to

prevent data loss.

y The delete function may not be supported

according to the USB status.

Operating 21

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

Note

,

y While in DEMO, this unit will keep DEMO

status even if you unplug the power cord
connection.

y You can enjoy other functions during the

DEMO, the DEMO will temporarily pause.

- 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)

(AUTO DJ OFF)

SEQUENTIAL)

Note

,

Display

Window

-

RANDOM
(AUTO DJ

RANDOM)

RPT

(AUTO DJ

Description

-

The music is

played randomly

on this mode.

The music is

played repeatedly

on this mode.

Mode

OFF

RANDOM

REPEAT

y AUTO DJ mode does not support searching

for a section within a track/le or to play
repeatedly or randomly.

y If 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.

y AUTO DJ is not supported in the music le

whose length is less than 60 seconds.

y During recording, AUTO DJ is not available.

y Only AUTO DJ SEQUENTIAL is selected

when played programmed list.

3

Operating

Operating22

Using a BLUETOOTH® wireless technology

About BLUETOOTH

Bluetooth is wireless communication technology
for short range connection.

The sound may be interrupted when the
connection has interference from other electronic
devices or you connect a Bluetooth device from a
dierent room.
Connecting individual devices under Bluetooth
wireless technology does not incur any charges. A

3

mobile phone with Bluetooth wireless technology

Operating

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)

Listening to music stored on the BLUETOOTH devices

Pairing your unit and BLUETOOTH
device

Before you start the pairing procedure, make
sure the Bluetooth feature is activated on 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. Press the FUNCTION button until the
Bluetooth function is selected. “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 CM4550(XX)”.

Note

,

y XX means the last two digits of

Bluetooth address. For example, if your
unit has a Bluetooth address such as
9C:02:98:4A:F7:08, you will see
“LG

CM4550(08)” on your Bluetooth device.

y Depending on the Bluetooth device

type, some devices may have a dierent
pairing process. Enter the PIN code (0000)
as needed.

y You can connect this unit with up to 3

Bluetooth devices simultaneously using
the same method as described above, only
in the Bluetooth function.

y The multi pairing connection is only

supported on Android or iOS devices. (Multi
pairing connection may not be supported
depending on the connected device
specications.)

y Removable/detachable Bluetooth device

(Ex : Dongle etc.) will not support multi
pairing.

Operating 23

3. When this unit has successfully connected with
your Bluetooth device, “PAIRED” will be appear
on the display window. After a short amount
of time, the Bluetooth device name will be
displayed.

Note

,

y “PAIRED” will momentarily appear on the

display when you connect other devices for
multi pairing

y If the device name is unavailable, “_” will be

displayed.

4. Listen to music.

To play a music stored on your Bluetooth
device, refer to your Bluetooth device’s user
guide.

Note

,

y When 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 certain
situations as described 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.

y You should connect your Bluetooth device

to this unit again when you restart it.

y Even if this unit connected up to 3

Bluetooth devices in the Bluetooth mode,
you can play and control music by using
only one of the connected devices.

Note

,

y When this unit connected with multiple

Bluetooth devices, only one device
which you are playing keeps Bluetooth
connection when you change the function
to the others.

y The sound may be interrupted when the

connection has interference from other
electronic devices.

y You cannot control the Bluetooth device

with this unit.

y Depending on the type of the device, you

may not be able to use the Bluetooth
function.

y You can enjoy wireless system using phone,

MP3, Notebook, etc.

y The more distance between the unit and

the Bluetooth device, the lower the sound
quality becomes.

y Bluetooth connection will be

disconnected when the unit is turned o or
the Bluetooth device gets far from the unit.

y When Bluetooth connection is

disconnected, connect the Bluetooth
device to the unit again.

y When a Bluetooth device is not connected,

“BT READY” appears on the display window.

y When you use Bluetooth function,

adjust the volume to a proper level on the
Bluetooth device.

y If it is not in Bluetooth function, only one

device can be connected.

y If a Bluetooth device is connected when

using LG TV, LG TV is disconnected and the
Bluetooth device is connected.

y When you connect Bluetooth device

(iOS device etc.) to this unit or operate
the device, the volume level can be
synchronized with each other.

3

Operating

Operating24

Using the Music Flow Bluetooth App

Note

,

Only Android OS is available to use “Music Flow
Bluetooth” app with this unit.

Note

,

y Make sure that your Bluetooth device is

connected to the Internet.

y Make 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)”.

y Depending on area, QR code may not work.

About “Music Flow Bluetooth” App

“Music Flow Bluetooth” app brings a suite of new
features to this unit.

To enjoy more features, you are recommended to
download and install free “Music Flow Bluetooth”

3

app.

Operating

Install “Music Flow Bluetooth” App onto Your Bluetooth Device

There are two ways to install “Music Flow Bluetooth”
App onto your Bluetooth device.

Install “Music Flow Bluetooth” App
through QR code

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

(Android OS)

2. Tap an icon for installation.

3. Tap an icon for downloading.

Install “Music Flow Bluetooth” 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 “Music Flow
Bluetooth” and search it.

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

4. Tap an icon for installation.

5. Tap an icon for downloading.

Note

,

y Make sure that your Bluetooth device is

connected to the Internet.

y Make sure that your Bluetooth device is

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

Activate Bluetooth with
“Music Flow Bluetooth” App

“Music Flow Bluetooth” app helps to connect your
Bluetooth device to this unit.

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

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

3. If you want to get more information to operate,
tap [Setting] and turn on the User guide.

Note

,

y “Music Flow Bluetooth ” app will be available

in the software version as follow;

- Android O/S : Ver 4.0.3 (or later)

y If you use “Music Flow Bluetooth” app for

operation, there would be some dierences
between “Music Flow Bluetooth” app and
the supplied remote control. Use the
supplied remote control as necessary.

y Depending on the Bluetooth device,

“Music Flow Bluetooth ” app may not work.

y After connection of “Music Flow Bluetooth”

app, music may be output from your device.
In this case, try connecting procedure again.

y If you operate the other applications or

change the settings on your Bluetooth
device while using “Music Flow Bluetooth”
app, “Music Flow Bluetooth” app may
operate abnormally.

y When “Music Flow Bluetooth” app operates

abnormally, check your Bluetooth
device and the connection of “Music Flow
Bluetooth” app and then try to connect
again.

y Depending on the smart phone's operating

system, you have some dierences for
“Music Flow Bluetooth” operation.

y Check Bluetooth setting on your

Bluetooth device if “Music Flow Bluetooth”
App connection does not work well.

Operating 25

3

Operating

Operating26

Radio Operations

Be sure that FM antenna is connected.
(Refer to page 16)

Listening to the radio

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

2. Auto tuning :
Press and hold TUNING -/+ on the remote
control or Y/U on the unit for about two
seconds until the frequency indication starts to

3

Operating

change, then release. Scanning stops when the
unit tunes in a station.

Or

Manual tuning :

Press TUNING -/+ on the remote control or
Y/U on the unit repeatedly.

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

Improving poor FM reception

Press T on the unit or d/M on the remote
control. This will change the Tuner from stereo to
mono and usually improve the reception.

Presetting the Radio Stations

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

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

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

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

4. Press PRESET·FOLDER W/S on the remote
control 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 remote control.

Deleting all the saved stations

1. Press and hold PROGRAM/MEMORY on the
remote control for two seconds.
“ERASEALL” will flash up on the unit display.

2. Press PROGRAM/MEMORY on the remote
control to erase all the saved radio stations.

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

(Optional)

AUTO EQ

POP

CLASSIC

JAZZ

ROCK

BASS

FOOT BALL

FLAT

BOOST

TRE/BASS Reinforces the treble and bass.

STANDARD You can enjoy optimized sound.

You can enjoy comfortable and
natural sound.

Regionally optimized sound
eect. (FORRO/FUNK/SERTANEJ/
DANGDUT/ARABIC/PERSIAN/
INDIA/REGUETON/MERENGUE/
SALSA/SAMBA/CUMBIA/AFRO,
AXE, TECNO BR)

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.

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

You can enjoy the sound eect
FOOTBALL STADIUM.

Provides balanced sound.

Boosts the mid-range for sound
reinforcement.

Operating 27

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 sound mode,

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

y By pressing BASS BLAST on the unit you

can directly select the STANDARD or BASS
eect.

3

Operating

Operating28

Advanced Operations

Recording to USB

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

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 full stop status.

3

Operating

Programmed list recording - After showing the
programmed list, you can record it to USB.
(Refer to page 19)

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

- 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 Z ENTER on the
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)

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 on the remote control or

Y/U on the unit to select the bit rate.

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

recording speed.

4. Press C/V on the remote control or

Y/U on the unit to select a desired
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.

USB copying

You can copy various sound source in USB1 to
USB2 on USB function.

1. Connect a USB device including desired sound
files to USB1 and select USB 1 function.

2. Connect another USB device to USB2.

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

4. To stop recording, press Z ENTER on the
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

purposes.

Be responsible

Respect copyrights

Operating 29

Note

,

y You can check the recording percentage

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

y During recording MP3/WMA, there is no

sound.

y When you stop recording during playback,

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

y Do not remove the USB device or turn o

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

y If USB recording does not work, the

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

y Multi card reader device or External HDD

can not be used for USB recording.

y A le is recorded by about 512 Mbyte when

you record for a long term.

y You may not store more than 2000 les.

y You can not record in AUTO DJ mode.

y In case of the unsupported MP3/WMA le,

the le recording may be stopped.

y It’ll be stored as follows.

3

Operating

AUDIO CD MP3/WMA

The other source* Tuner

* : AUX and the like.

Tuner : The current recording frequency is
shown.

Operating30

Setting the Clock

1. Turn the unit on.

2. Press and hold CLOCK.

3. Select time mode by pressing C/V on

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 C/V on the

remote control.

6. Press SET.

7. Select the minutes by pressing C/V on

3

Operating

the remote control.

8. Press SET.

Setting the Clock through “Music Flow Bluetooth” App

Install “Music Flow Bluetooth” app on your Android
device. (Refer to page 24)

Your unit’s clock will be automatically synchronized
with your device by activating Bluetooth
connection through “Music Flow Bluetooth” app.

Using your player as an alarm clock

1. Turn the unit on.

2. Press and hold ALARM.

3. Press C/V on the remote control to

change the hours and minutes and press
SET to save.

4. Press C/V on the remote control to

select function and press SET to save.

- Press C/V to select a memory No. when

you select Tuner and then, press SET. If there is
no memory No., this step is skipped.

5. Press C/V on the remote control to

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

Note

,

y If you set the clock time, you can check the

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

y You can set alarm after you set the clock

time.

y If you set the clock time and alarm, you

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

y If you set the clock time and alarm, you

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

y You can select ALARM on/o mode by

pressing ALARM.

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

,

y You can check the remaining time before

the unit is turned o.

y Press 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.

Note

,

All the LED turns o when Dimmer is being
operated.

Operating 31

3

Operating

Operating32

Auto power down

This unit will turn itself o to save electricity in the
case were the main unit is not connected to an
external device and is not used for 20 minutes.

The unit will also turn itself o after six hours if the
Main unit has been connected to another device
using the analog inputs.

How to disconnect the wireless
network connection or the wireless
device

Turn o the unit by pressing the power button for
more than 5 seconds.

3

AUTO POWER On

Operating

This unit automatically turns on by an input source
: LG TV or Bluetooth

If you try to connect your Bluetooth device, this
unit turns on and connect your Bluetooth device.
You can play your music.

Note

,

y Depending on the connected device, this

function may not operate.

y Depending on the connected device, the

unit turns on but Bluetooth function may
not be connected.

y If you disconnect Bluetooth connection

by this unit, some Bluetooth devices try to
connect to the unit continually. Therefore
it is recommended to disconnect the
connection before turning o the unit.

y If you try to connect to the “Music Flow

Bluetooth” app, Bluetooth function of this
unit is turned on.

y If you turn on the unit using LG TV or

Bluetooth function, proper function of this
unit is turned on.

y If you have already paired with this unit,

automatically this unit can turn on by an
input source when this unit is turned o.

y If you turn o the unit by pressing the

power button for more than 5 seconds,
Auto Power On function is disabled. To
activate it, turn on the unit.

Auto function change

This unit recognizes input signals such as
Bluetooth and LG TV and then changes suitable
function automatically.

When you try to connect Bluetooth
device

When you try to connect your Bluetooth device to
this unit, Bluetooth function is selected. Play your
music on the Bluetooth device.

When LG TV is connected

When you turn on your LG TV connected by LG
Sound Sync, this unit changes the function to LG
TV. You can hear the sound from your TV.

Note

,

y This function is not available during

recording or deleting.

y This function only works with devices that

were previously connected.

Operating 33

LG Sound Sync

You can control some functions of this unit by
your TV’s remote control with LG Sound Sync. It
is compatible with LG TV that supports LG Sound
Sync. Make sure your TV has the LG Sound Sync
logo.

Controllable function by LG TV’s remote control :
Volume up/down, mute

Refer to the TV’s instruction manual for the details
of LG Sound Sync.

Note

,

y You can also use the remote control of

this unit while using LG Sound Sync. If you
use TV's remote control again, the unit
synchronizes with the TV.

y If the connection fails, check the conditions

of this unit and your TV : power, function.

y Make sure of the condition of this unit and

the connection in the cases below when
using LG Sound Sync.

- Turned o the unit.

- Changing the function to the others.

- Disconnecting the wireless connection

caused by interference or a distance.

y The amount of time to turn o this unit is

dierent depending on your TV.

y Details of TV setting menu vary depending

on the manufacturers or models of your TV.

y If you connect LG Sound Sync when “Music

Flow Bluetooth“ app is connected, control
through the app is available.

y If you turned o the unit directly by pressing

1/! (Power), LG Sound Sync will be
disconnected. To use this function again, you
should reconnect the TV and the unit.

y If an LG TV is connected when using

Bluetooth, Bluetooth is disconnected and
the LG TV is connected.

y If you try to change the function on using

the LG TV function, volume will be change
according to the LG TV volume level.

1. Turn on the unit by pressing 1 (Power) on the

remote control.

2. Press FUNCTION until LG TV function is
selected.

3. Set up the sound output of TV to listen to the
sound through this unit :
TV setting menu [ [Sound] [ [TV Sound
output] [ [LG Sound Sync (Wireless)]

“PAIRED” appears on the display window for

about 3 seconds and then you can see “LG TV”
on the display window if connecting normally
between this unit and your TV.

3

Operating

Troubleshooting34

Troubleshooting

Problem Cause & Correction

The unit does not work
properly.

No Power.

No sound.

4

Troubleshooting

The unit does not start
playback.

y Turn o the power of this unit and the connected external device (TV, Woofer,

DVD-player, Amplier, etc.) and turn it on again.

y Disconnect the power cord of this unit and the connected external device

(TV, Woofer, DVD-player, Amplier, etc.) and then try connecting again.

y Previous setting may not be saved when device power is shut o.

y The power cord is not plugged in. Plug in the power cord.

y Check whether electricity failed. Check the condition by operating other

electronic devices.

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

selected function.

y Check to see if the Speakers are connected correctly. Speaker cables

connected correctly.

y An unplayable disc is inserted. Insert a playable disc.

y No disc is inserted. Insert a disc.

y The disc is dirty. Clean the disc. (Refer to page 37)

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

facing upwards.

Radio stations cannot be
tuned in properly.

The remote control does
not work properly.

LG Sound Sync does not
work.

y 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

manually.

y No stations have been preset or preset stations have been cleared. (when

being tuned by scanning preset channels) Preset some radio stations, see
page 26 for details.

y The remote control is too far from the unit. Operate the remote control within

about 23 ft (7 m).

y There is an obstacle in the path of the remote control and the unit. Remove

the obstacle.

y The batteries in the remote control are exhausted. Replace the batteries with

new ones.

y Check whether your LG TV supports LG Sound Sync.

y Check connection of LG Sound Sync.

y Check sound setting of your TV and this unit.

General specifications

General

Power requirements Refer to the main label.

Refer to the main label.

Power consumption

Dimensions (W x H x D) (206 x 308 x 284) mm

Net Weight (Approx.) 3 kg

Operating temperature 5 °C to 35 °C

Operating humidity 5 % to 90 %
Bus Power Supply 5 V 0 500 mA

Inputs

AUX IN 2.0 Vrms (1 kHz, 0 dB), 75 Ω, 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

Amplier

Total Output 700 W

Front 230 W X 2 (3 Ω at 1 kHz)

Subwoofer 240 W (3 Ω at 1 kHz)

THD 20 %

Networked standby : 0.4 W
(If all network ports are activated.)

Appendix 35

5

Appendix

CD

Frequency Response 100 to 20000 Hz

Signal-to-noise ratio 75 dB

Dynamic range 75 dB

Appendix36

Speaker specifications

Front speaker

Type 2 Way 2 Speaker

Impedance 3 Ω

Rated Input Power 230 W

Max. Input power 460 W

Net Dimensions (W x H x D) (266 x 306 x 263) mm

Net Weight 3.1 kg

Subwoofer speaker

Type 1 Way 1 Speaker

Impedance 3 Ω

Rated Input Power 240 W

Max. Input power 480 W

Net Dimensions (W x H x D) (266 x 306 x 232) mm

Net Weight 4.7 kg

y Design and specications are subject to change without notice.

5

Appendix

Appendix 37

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.

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

5

Appendix

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.

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

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.