LG OJ45 User manual

OWNER’S MANUAL
Mini Hi-Fi
System
Please read this manual carefully before operating
your set and retain it for future reference.
MODEL
OJ45
*MFL69981402*www.lg.com

1 Getting Started
Getting Started
2
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
suf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: TO PREVENT FIRE OR ELECTRIC SHOCK
HAZARD, DO NOT EXPOSE THIS PRODUCT TO RAIN
OR MOISTURE.
CAUTION: The apparatus should not be exposed to
water (dripping or splashing) and no objects lled
with liquids, such as vases, should be placed on the
apparatus.
WARNING: Do not install this equipment in a
conned space such as a book case or similar unit.
CAUTION: Do not use high voltage products around
this product. (ex. Electrical swatter) This product may
malfunction due to electrical shock.
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: 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 should 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.
NOTICE: For safety marking information including
product identication and supply ratings, please refer
to the main label on the bottom or the other surface
of the product.

Getting Started
3
Getting Started
1
CAUTION concerning the Power Cord
Check the specication page of this owner’s manual
to be certain of the current requirements.
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 device, and if its appearance
indicates damage or deterioration, unplug it,
discontinue use of the device, 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 device.
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: No naked ame sources, such as lighted
candles, should be placed on the apparatus.
Symbols
~Refers to alternating current(AC).
0Refers to direct current(DC).
Refers to class II equipment.
1Refers to stand-by.
!Refers to “ON” (power).
Refers to dangerous voltage.

Table of Contents
4
Table of Contents
1 Getting Started
2 Safety Information
6 Unique Features
6 Playable file Requirement
6 – Music file requirement
7 – Compatible USB Devices
7 – USB device requirement
8 Remote control
10 Top panel
12 Front panel
12 Rear panel
2 Connecting
13 Optional Equipment Connection
13 – USB Connection
3 Operating
14 Basic Operations
14 – CD/USB Operations
14 – Auto Play
15 – Selecting a folder and
an MP3/WMA file
16 Using BLUETOOTH® wireless technology
16 – Listening to music stored on the Bluetooth
devices
19 Radio Operations
19 – Listening to the radio
19 – Improving poor FM reception
19 – Presetting the Radio Stations
19 – Deleting all the saved stations
20 Sound adjustment
20 – Setting the sound mode
21 Advanced Operations
21 – Programmed Playback
22 Other Operations
22 – Turn off the sound temporarily
22 – Displaying file information
22 – LIGHTING
22 – Auto power down
23 – AUTO POWER On
23 – Auto function change

Table of Contents
5
1
2
3
4
5
4 Troubleshooting
24 Troubleshooting
24 – General
5 Appendix
25 General specifications
26 Trademarks and Licenses
27 Maintenance
27 – Notes on Discs
27 – Handling the Unit

Getting Started
6
Getting Started
1
Unique Features
BLUETOOTH®
Listens to music stored on your Bluetooth device.
Playable file
Requirement
Music file requirement
MP3/WMA le compatibility with this unit is limited
as follows.
ySampling frequency : within 8 to 48 kHz (MP3),
within 8 to 44.1 kHz (WMA)
yBit rate : within 8 to 320 kbps (MP3),
8 to 192 kbps (WMA)
yMaximum les : Data CD : 999 / USB : 999
yMaximum folders : Data CD : 99 / USB : 99
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)

Getting Started
7
Getting Started
1
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 999 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 Started
8
Getting Started
1
Remote control
Replacement of battery
Remove the battery cover on the rear of the remote
control, and insert the battery with 4and 5
matched correctly.
• • • • • • • • • • • • • • a • • • • • • • • • • • • •
1(Standby) :Turns the power on or off.
B (Open/Close) : Opens and closes the disc tray.
VOL (Volume) +/- : Adjusts speaker volume.
F (Function) : Selects the function and input source.
Input source / Function Display
Disc CD
USB USB
Bluetooth BT
Radio FM
(Mute): Mutes the sound.
PRESET/FOLDER W/S:
- Chooses a preset number for a radio station.
(Page 19)
- 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 on the remote control or PRESET/FOLDER
A/D on the unit to select the folder you want
to play.

Getting Started
9
Getting Started
1
• • • • • • • • • • • • • • b • • • • • • • • • • • • •
PROGRAM/MEMORY :
- Stores radio stations. (Page 19)
- Creates a programmed list you want to listen to.
(Page 21)
REPEAT : Listens to your tracks/les repeatedly or
randomly.
DELETE :
- Deletes a song on the programmed list.
- Deletes all the saved stations.
TUNING-/+ : Selects the radio stations.
C/V (Skip/Search) :
- Skips backward or forward.
- Searches for a section within a track/le.
N (Play/Pause) :
- Starts or pauses playback.
- Selects stereo/mono.
• • • • • • • • • • • • • • c • • • • • • • • • • • • •
SOUND EFFECT : Chooses sound impressions.
Z (Stop) : Stops playback.
BASS BLAST : Press to select BASS effect directly.

Getting Started
10
Getting Started
1
Top panel
m
l
k
g
h
i
j
abcdfe
a 1(Standby)
Turns the power on or off.
b USB Port
You can play sound les by connecting the USB
device.
cPROGRAM/MEMORY
- Stores radio stations. (Page 19)
- Creates a programmed list you want to listen
to. (Page 21)
dMASTER VOLUME
Adjust speaker volume.
eDELETE :
- Deletes a song on the programmed list.
- Deletes all the saved stations.
fF (Function)
Selects the function and input source.
Input source / Function Display
Disc CD
USB USB
Bluetooth BT
Radio FM
gPRESET/FOLDER D
- Chooses a preset number for a radio station.
(Page 19)
- 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 on the remote control or PRESET/
FOLDER A/D on the unit to select the folder
you want to play.
SOUND EFFECT
Chooses sound impressions.
BASS BLAST
Press to select BASS effect directly.

Getting Started
11
Getting Started
1
hT (Play/Pause)
- Starts or pauses playback.
- Selects stereo/mono.
U(Skip/Search)
- Skips forward.
- Searches for a section within a track/le.
- Selects the radio stations.
iR (Open/Close)
Opens and closes the disc tray.
jLIGHTING
Turns on/off the lighting effects.
kI (Stop)
Stops playback
Y (Skip/Search)
- Skips backward.
- Searches for a section within a track/le.
- Selects the radio stations.
ljBLUETOOTH
Press to select Bluetooth function
mPRESET/FOLDER A
- Chooses a preset number for a radio station.
(Page 19)
- 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 on the remote control or PRESET/
FOLDER A/D on the unit to select the folder
you want to play.
INFO
- Sees information about your music. An MP3 le
often come with ID3 tag. The tag gives the Title,
Artist, Album or Time information.
- Sees Bluetooth device name of the unit in
READY.
- Sees the name of connected all Bluetooth
device in Bluetooth mode.
REPEAT
Listens to your tracks/les repeatedly or
randomly.

Connecting
12
Connecting
2
Front panel
Rear panel
a Display window bDisc tray
a FM ANTENNA bPOWER IN
ab
ab
a
b

2 Connecting
Connecting
13
Connecting
2
Optional Equipment
Connection
USB Connection
Connect a USB device (or MP3 player, etc.) to the
USB ports on the unit.
USB device
Removing the USB device from the unit :
1. Choose a different function/mode or
press Z on the remote control or I on
the unit once.
2. Remove the USB device from the unit.
, Note

3 Operating
Operating
14
Operating
3
Basic Operations
CD/USB Operations
1. Insert the disc by pressing B on the remote
control or Ron the unit.
Or connect the USB device to the USB port.
2. Select CD or USB function by pressing F.
To Do this
Stop Press Z on the remote control or
I on the unit.
Playback Press N on the remote control or
Ton the unit.
Pause Press N on the remote control or
Ton the unit during playback.
Searching
for a section
within a track/
le
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.
Skipping to
the next/
previous
track/le
- 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.
Playing
repeatedly or
randomly
Press REPEAT repeatedly, the
display will be changed in the
following order.
ONE ALL SHUFFLE OFF
yWhen you play programmed list, only ONE
and ALL are available.
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 disc tray.

Operating
15
Operating
3
Selecting a folder and
an MP3/WMA file
On the unit
1. Press PRESET/FOLDER A/Drepeatedly until a
desired folder appears.
2. Press T to play it. The first file of folder wil be
played.
On the remote control
1. Press PRESET/FOLDER W/Srepeatedly until a
desired folder appears.
2. Press N to play it. The first file of folder wil be
played.
yCD / USB Folders/Files are recognized as
below.
*
yIf there is no le in a folder, the folder will not
appear.
yFolders will be presented as the following
order;
ROOT FOLDER 1 FOLDER 3
FOLDER 7 FOLDER 8 FOLDER 5
FOLDER 6
yFile will be played from $ le No.1 to $ le
No.14 one by one.
y*ROOT : The rst screen you can see when a
computer recognize the CD/USB is “ROOT”.
yFiles and folders will be presented in order
recorded and may be presented differently
according to the record circumstances.
, Note

Operating
16
Operating
3
Using BLUETOOTH®
wireless technology
About Bluetooth
Bluetooth is wireless communication technology for
short range connection.
The sound may be interrupted when the connection
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.
yAvailable Devices : Smart phone, MP3, Notebook,
etc.
yCodec : SBC
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. Turn on the unit.
When Bluetooth connection lock is activated,
you can search Bluetooth device in BT function.
, Note
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 OJ45(XX)”.
yXX 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 OJ45
(08)” on your Bluetooth device.
yDepending on the Bluetooth device type,
some devices may have a different pairing
process. Enter the PIN code (0000) as
needed.
yYou can connect this unit with up to 2
Android phones simultaneously using the
same method as described above, only in the
Bluetooth function.
yThe multi pairing connection is only
supported on Android phones. (Multi pairing
connection may not be supported depending
on the connected device specications.)
yDuring multi pairing connection, phones are
muted.
, Note
yVersion : 4.1

Operating
17
Operating
3
3. When this unit is successfully connected with
your Bluetooth device, “PAIRED” appears on the
display window and change to Bluetooth device
name soon. Then “BT” will appear on the display
window.
y"PAIRED" will momentarily appear on the
display when you connect other devices for
multi pairing.
yIf the device name is unavailable, “_” will be
displayed.
, Note
4. Listen to music.
To play a music stored on your Bluetooth device,
refer to your Bluetooth device’s user guide.
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 certain
situations as described below :
- There is an 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.
yEven if this unit connected up to 2 Bluetooth
devices in the Bluetooth mode, you can play
and control music by using only one of the
connected devices.
, Note
Bluetooth connection lock
(BT LOCK)
You can limit Bluetooth connection to only BT
(Bluetooth) function to prevent unintended
Bluetooth connection.
To turn on this function, press and hold N on
the remote control or Ton the unit for about 5
seconds in BT (Bluetooth) function.
“BT LOCK” appears then you can limit Bluetooth
connection.
To turn off this function, press and hold N on
the remote control or Ton the unit for about 5
seconds in BT (Bluetooth) function.
“BT UNLOCK” appears.

Operating
18
Operating
3
yThe sound may be interrupted when the
connection has interference from other
electronic devices.
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.
yThe more distance between the unit and
the Bluetooth device, the lower the sound
quality becomes.
yBluetooth connection will be disconnected
when the unit is turned off or the Bluetooth
device gets far from the unit.
yWhen Bluetooth connection is disconnected,
connect the Bluetooth device to the unit
again.
yWhen a Bluetooth device is not connected,
“READY” appears on the display window.
yWhen you use the Bluetooth function,
adjust the volume to a proper level on the
Bluetooth device.
yWhen entering Bluetooth function, this unit
automatically connect to Bluetooth device
which is connected the last. (Auto connection
may not be supported depending on the
connected device specications.)
, Note

Operating
19
Operating
3
Radio Operations
Be sure that FM aerial is connected.
Listening to the radio
1. Press F 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
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 pressing VOL +/- on the
remote control or by rotating volume knob on the
unit repeatedly.
Improving poor FM reception
Press N on the remote control or T on the unit.
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 F 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. A preset number
will blink in the display window.
4. Press PRESET/FOLDER W/S on the remote
control or PRESET/FOLDER A/D on the unit to
select the preset number you want.
5. Press PROGRAM/MEMORY. The station is
stored.
6. Repeat steps 2 to 5 to store other stations.
7. To listen a preset station, press
PRESET/FOLDER W/S on the remote control
or PRESET/FOLDER A/D on the unit.
Deleting all the saved stations
1. Press and hold DELETE for three seconds.
“DEL ALL” will flash up on the unit display.
2. Press DELETE to erase all the saved radio
stations
“DELETED ALL” will flash up on the unit display.

Operating
20
Operating
3
Sound adjustment
Setting the sound mode
This system has a number of pre-set surround sound
elds. The displayed items for the equalizer may be
different depending on sound sources and effects.
You can select a desired sound mode by using
SOUND EFFECT.
On Display Description
POP
CLASSIC
ROCK
JAZZ
This program lends
an enthusiastic
atmosphere to the
sound, giving you the
feeling you are at an
actual rock, pop, jazz or
classic concert.
BASS (BASS BLAST)
Reinforces the treble,
bass and surround
sound effect.
STANDARD You can enjoy
optimized sound.
You can directly select BASS (BASS BLAST)
effect by pressing BASS BLAST.
, Note