LG CMS4550F User manual

www.lg.com
Please read this manual carefully before operating
your set and retain it for future reference.
OWNER’S MANUAL
Mini Hi-Fi
System
CM4550 (CM4550, CMS4550F, CMS4550W)
P/NO : MFL69181412_REV1.0

1 Getting Started
Getting Started2
Getting Started
1
Safety Information
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
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.
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.
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 built-
in installation such as a bookcase or rack unless
proper ventilation is provided or the manufacturer’s
instruction has been adhered to.
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 should 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.

Getting Started 3
Getting Started
1
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 Started4
Getting Started
1
IMPORTANT SAFETY
INSTRUCTIONS
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 power-
supply cord or plug is damaged, liquid has been
spilled or objects have fallen into the apparatus,
the apparatus has been exposed to rain or
moisture, does not operate normally, or has
been dropped.

Getting Started 5
Getting Started
1
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:
yReorient or relocate the receiving antenna.
yIncrease the separation between the equipment
and receiver.
yConnect the equipment into an outlet on a
circuit dierent from that to which the receiver
is connected.
yConsult the dealer or an experienced radio/TV
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]

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

Table of Contents 7
1
2
3
4
5
4 Troubleshooting
34 Troubleshooting
5 Appendix
35 General specifications
36 Speaker specifications
37 Maintenance
37 – Handling the Unit
37 – Notes on Discs
37 Trademarks and Licenses

Getting Started8
Getting Started
1
Unique Features
BLUETOOTH®
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
Getting Started
1
Playable file
Requirement
Music file requirement
MP3/WMA le compatibility with this unit is limited
as follows.
ySampling frequency : within 32 to 48 kHz (MP3),
within 32 to 48 kHz (WMA)
yBit rate : within 32 to 320 kbps (MP3),
40 to 192 kbps (WMA)
yMaximum les : Data CD : 999 / USB : 2000
yMaximum folders : Data CD : 99 / USB : 200
yFile extensions :“.mp3”/“.wma”
yCertain MP3/WMA les may not be played
depending on the type or format of the le.
yCD-ROM le format : ISO 9660/JOLIET
yWe 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
yMP3 Player : Flash type MP3 player.
yUSB Flash Drive :
Devices that support USB2.0 or USB1.1.
yThe 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.
yDo not extract the USB device while in
operation.
yFor a large capacity USB, it may take longer than
a few minute to be searched.
yTo prevent data loss, back up all data.
yIf you use a USB extension cable or USB hub, the
USB device is not recognized.
yUsing NTFS le system is not supported.
(Only FAT(16/32) le system is supported.)
yThis unit recognizes up to 2000 les.
yExternal HDD, Card readers, Locked devices, or
hard type USB devices are not supported.
yUSB port of the unit cannot be connected to PC.
The unit cannot be used as a storage device.
ySome USB may not work with this unit.

Getting Started10
Getting Started
1
Remote control
Battery Installation
Remove the battery cover on the rear of the
Remote Control, and insert two (size AAA) batteries
with 4and 5matched correctly.
• • • • • • • • • • 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/Sto 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.)

Getting Started 11
Getting Started
1
• • • • • • • • • • 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.
ZENTER :
-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 • • • • • • • • •
0to 9numerical 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.

Getting Started12
Getting Started
1
Front Panel
a
b
c
d
e
f
g
h
i
j
k
l
m
n
p
o

Getting Started 13
Getting Started
1
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.
nBASS BLAST
Selects BASS or STANDARD eect directly.
o Master Volume
Adjusts volume of speaker.
pR(Open/Close)
Opens or closes the disc tray.

Getting Started14
Getting Started
1
Rear Panel
a
b
c
d
POWER IN
aPOWER IN
bANTENNA (FM)
cAUX IN (L/R) connectors
d SPEAKERS terminal/cord

2 Connecting
Connecting 15
Connecting
2
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
yBe 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)
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
subwoofer speaker to the subwoofer
connection terminal on the rear of the unit.
> Caution

Connecting16
Connecting
2
Optional Equipment
Connection
Antenna Connection
Connect the supplied FM 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.
FM
USB Connection
Connect a USB device (or MP3 player, etc.) to the
USB ports on the unit.
Removing the USB Device from the unit.
1. Choose a different function/mode or
press ZENTER on the remote control
or Ion the unit twice in a row.
2. Remove the USB device from the unit.
, Note

Connecting 17
Connecting
2
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.
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 1on 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.

3 Operating
Operating18
Operating
3
Basic Operations
CD/USB Operations
1. Insert the disc by pressing Bon the remote
control or Ron the unit
Or connect the USB device to the USB port.
2. Select CD or USB function by pressing
FUNCTION.
To Do this
Stop Press ZENTER on the remote
control or Ion the unit.
Playback Press d/Mon the remote control
or Ton the unit.
Pause During playback, press d/Mon the
remote control or Ton the unit.
Searching
for a section
within
a track/le
Press and hold C/Von the
remote control or Y/U on
the unit during playback and
release it at the point you want to
listen to.
Selecting
a track/le
directly
Press 0to 9numerical buttons on
the remote control to go to the
desired le or track directly.
Skipping to
the next/
previous
track/le
-In stop status,
Press C/Von the remote
control or Y/U on the unit to
go to the next/previous track/le.
-During playback,
press Von the remote control
or Uon the unit to go to the
next track/le.
Playing less than 2 seconds, press
Con 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 Yon
the unit to go to the beginning of
the track/le.
Playing
repeatedly or
randomly
Press REPEAT(MENU) on the
remote control repeatedly. Refer
to the note for details about the
display change.
yThe display changes in the following order.
USB MP3/WMA CD AUDIO CD
RPT 1
RPT*DIR
RPT ALL
RANDOM
OFF
RPT 1
RPT DIR
RPT ALL
RANDOM
OFF
RPT 1
-
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 5 minutes,
it will close automatically.
, Note
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
Operating
3
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/Von 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/Sto select the program
number.)
5. Press PROGRAM/MEMORY once again.
To play the programmed list, press d/M after you
make the list.
When making or modifying the programmed
list, REPEAT mode is o.
, Note
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/Srepeatedly.
3. Press DELETE while a song is selected.
yProgrammed 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.
yProgram 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.
, Note
Displaying file information
(ID3 TAG)
While playing an MP3 le containing le
information, you can display the information by
pressing INFO.

Operating20
Operating
3
Searching for a folder and an
MP3/WMA file
1. Press PRESET·FOLDER W/Son the remote
control repeatedly until a desired folder appears
in the display window.
2. Press d/Mto play it. The first file of the folder
will be played.
yUSB/CD Folders/Files are recognized as
below.
FOLDER1
ROOT
FOLDER3
FOLDER4
FOLDER2
FOLDER7
FOLDER8
FOLDER5
FOLDER6
FILE 5
FILE 6
FILE 7
FILE 8
FILE 9
FILE 10
FILE 3
FILE 4
FILE 11
FILE 12
FILE 13
FILE 14
FILE 1
FILE 2
FOLDER
FILE
yIf there is no le in a folder, the folder will
not appear.
yFolders will be presented as the following
order;
ROOT FOLDER1 FOLDER3 FOLDER7
FOLDER8 FOLDER5 FOLDER6
yFile will be played from $le No.1 to $le
No.14 one by one.
yFiles 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”.
, Note
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 Ton the unit.
If you want to exit the current mode,
press ZENTER on the remote control or
press Ion the unit.
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.
> Caution