LG | RM2 | Owner's manual | LG RM2 Owner's manual

OWNER’S MANUAL
HIGH POWER
SPEAKER SYSTEM
Please read this manual carefully before operating your set and retain it for future
reference.
MODEL
RM2
MFL71437203
1908_Rev01
www.lg.com
Copyright © 2019 LG Electronics Inc. All Rights Reserved.
2
Getting Started
Safety Information
1
CAUTION
Getting Started
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 flash 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
sufficient 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 filled
with liquids, such as vases, should be placed on the
apparatus.
WARNING: Do not install this equipment in a
confined 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: No naked flame sources, such as lighted
candles, should be placed on the apparatus.
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 should never be blocked by placing
the product on a bed, sofa, rug or other similar
surface. This product should 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.
NOTICE: For safety marking information including
product identification and supply ratings, please refer
to the main label on the bottom or the other surface
of the product.
Getting Started
CAUTION concerning the Power Cord
Check the specification 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 fire. 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.
Symbols
~
Refers to alternating current (AC).
0
Refers to direct current (DC).
1
Refers to class II equipment.
Getting Started
The Power Plug is the disconnecting device. In case
of an emergency, the Power Plug must remain readily
accessible.
3
1
Refers to stand-by.
!
Refers to “ON” (power).
Refers to dangerous voltage.
4
Table of Contents
Table of Contents
1
Getting Started
3
Operating
2
6
6
6
6
6
7
8
Safety Information
Unique Features
Playable file Requirement
– Music file requirement
– Compatible USB Devices / SD cards
– USB device / SD card requirement
Rear panel
Carrying the unit
14
14
15
15
Basic Operations
– USB/SD Operations
Using BLUETOOTH® wireless technology
– Listening to music stored on the Bluetooth
devices
Other Operations
– Using Microphone
– Adjusting the ECHO volume
– Setting the USER EQ
2
Connecting
9
11
12
12
12
13
13
Use of Tripod
AC Power Cord Connection
Optional Equipment Connection
– LINE IN Connection
– LINE OUT Connection
– USB Connection
– SD card Connection
17
17
17
17
Table of Contents
4
Troubleshooting
18
18
Troubleshooting
– General
5
Appendix
19
20
20
20
General specifications
Maintenance
– Handling the Unit
Trademarks and Licenses
5
1
2
3
4
5
6
1
Getting Started
Getting Started
Unique Features
Compatible USB Devices / SD
cards
Bluetooth®
yy MP3 Player : Flash type MP3 player.
Listens to music stored on your Bluetooth device.
yy USB Flash Drive :
Devices that support USB2.0 or USB1.1.
Playable file
Requirement
yy SD card : SD, SDHC, SDXC
Music file requirement
MP3 file compatibility with this unit is limited as
follows.
yy Sampling frequency : within 32 to 44.1 kHz
yy Bit rate : within 32 to 320 kbps
yy Maximum files : 999
yy The USB / SD function of this unit does not
support all USB devices and SD cards.
USB device / SD card
requirement
yy Devices which require additional program
installation when you have connected it to a
computer, are not supported.
yy Do not extract the USB device / SD card while in
operation.
yy Maximum folders : 99
yy For a large capacity USB or SD card, it may take
longer than a few minute to be searched.
yy File extension : “.mp3”
yy To prevent data loss, back up all data.
yy Certain MP3 files may not be played depending on
the type or format of the file.
yy If you use a USB extension cable or USB hub, the
USB device is not recognized.
yy Using NTFS file system is not supported.
(FAT(16 / 32) and ExFAT file systems are
supported.)
yy This unit recognizes up to 999 files.
yy External HDD, Card readers, Locked devices, or
hard type USB devices are not supported.
yy USB port of the unit cannot be connected to PC.
The unit cannot be used as a storage device.
yy Some USB / SD cards may not work with this unit.
Getting Started
7
Rear panel
1
Getting Started
a
b
c
d
e
f
h
i
g
l
j
k
a Display window
b 1 (Standby)
Turns the power on or off.
F (Function)
Selects the function and input source.
Input source / Function
USB*
Display
USb
SD card*
Sd
LINE input
LInE
Bluetooth
bt
*: USB and SD card function will be displayed when
the device is inserted.
C/V (Skip/Search)
- Skips backward or forward.
- You can search a folder by pressing and holding.
N (Play/Pause)
Starts or pauses playback.
REPEAT
Listens to your files repeatedly.
c MASTER VOLUME
Adjusts speaker volume.
d BASS
Adjusts BASS sound level when setting USER EQ.
e TREBLE
Adjusts TREBLE sound level when setting USER
EQ.
f MIC (Microphone) ECHO
Adjusts echo volume.
g MIC (Microphone) VOLUME
Adjusts microphone volume.
h SD CARD slot
You can play sound files by connecting the SD
card.
i USB Port
You can play sound files by connecting the USB
device.
j MIC (Microphone) 1/2 Jack
k AC IN socket
l LINE IN / OUT (L/R)
Connect an auxiliary device.
8
Getting Started
Carrying the unit
1
This unit have wheels and handle for carrying. You
can easily carry the unit.
>>Caution
yy Do not draw the unit on the unpaved road or
the stair.
yy Be careful it does not drop the unit when you
carry it.
Getting Started
yy Carry the unit, after then disconnect the
connected cables.
yy Do not step or sit on the unit. Otherwise
this unit may fall down and causing personal
injury.
yy Do not place the unit on an unstable position
and place the unit at a safe distance from the
child’s reach.
yy Be careful that the unit should not fall down.
Otherwise it may result in malfunction and
causing personal injury and/or property
damage.
Connecting
Use of Tripod
9
3. Loosen the Hand screw on the bottom of the unit
fully, then tighten it up.
You can mount the unit on a tripod.
The tripod is an optional purchase.
>>Caution
yy Extend the tripod legs as much as possible
and tighten up the screw securely.
yy Before connecting with the unit, you must set
up the tripod completely to prevent shaking.
2
Connecting
1. Unfold the tripod on a flat surface. And then fix
the tripod.
Tighten up the tightening part of the tripod.
2. Lift the speaker and connect the tripod to fixing
part on the bottom of the speaker.
>>Caution
Tighten up the Hand screw on the bottom of the
unit while the other is holding the speaker and
tripod.
>>Caution
Insert the safety pin when setting up the tripod
stand.
10 Connecting
,,Note
yy If you use a tripod, use the tripod only for
speaker.
yy Before buying a tripod, check the
specifications for maximum bearing load of
the center column.
(Unit’s net weight : about 12.3 kg)
,,Note
yy You should limit people around the unit
while its on a tripod. Otherwise it may result
in an accident and may cause personal injury
and/or property damage.
yy Standing on the stool to reach unit’s control
panel is risky and might lead to injuries.
yy Do not put or attach other objects on the
tripod.
2
yy Do not shake or push the unit when the
tripod is installed.
35 mm
Connecting
(B)
(A)
yy Use tripod as below :
(A) From tripod’s center to tripod’s leg :
above 600 mm.
(B) From top of tripod to bottom of tripod :
below 900 mm.
(C) Tripod net weight : over 3.9 kg
yy For safe use set the tripod as low as
possible.
yy You should pull the center column to the
maximum only in case of need.
yy Mount only one unit on each tripod.
yy Do not try to extent the tripod legs beyond
it’s allowed range.
yy Make sure the tripod is correctly assembled
and all its components are tightly
connected.
yy Do not try to assemble the tripod if parts
are missing or defective.
yy After installation, make sure the unit is set
up firmly on the tripod.
yy Do not place the unit on anything unstable
where it might accidentally fall over.
yy Add weight such as sand bags around the
tripod legs to prevent the tripod from falling
over.
yy Refrain from moving around the tripod after
unit is installed.
yy Remove all connected cables to the unit
on the tripod before moving the tripod or
adjusting its height.
yy When transporting or moving the unit,
always use two or more people.
yy When you use the tripod, use an extension
cord. Always be careful with the movement
of the cable.
yy It is prohibited to use this unit outside.
(Indoor use only)
yy Do not expose the unit to excessive dust,
vibrations, extreme cold or heat (such as in
direct sunlight or near a heater) to prevent
the possible disfigurement of the panel or
damage to the internal components.
yy When using the external input cable (Mic,
etc.) after installing the unit on the tripod,
external input cable can cause the unit to
fall down.
yy Watch out because people can trip over the
input cable (Mic, etc.) connected the unit.
yy Always be careful not to trip over the unit.
Connecting 11
AC Power Cord
Connection
1. Connect one end of the AC power cord (included)
to the AC IN socket.
2 Plug the other end into the wall outlet.
2
a
,,Note
Unplug the AC power cord from the wall outlet
if you do not to use for an extended period of
time.
Connecting
b
12 Connecting
Optional Equipment
Connection
LINE IN Connection
Connect an output of auxiliary device (Camcorder, TV,
Player, etc) to the LINE IN (L/R) connector.
2
Connecting
If your device has only one output for audio (mono),
connect it to the left audio jack on the unit.
White
Audio cable
Red
DVD, Blu-ray player etc.
Listening to music from your external
device
The unit can be used to play the music from many
types of external device.
1. Connect the external device to the LINE IN (L/R)
connector of the unit.
2. Turn the power on by pressing 1.
3. Press F to select LINE function.
4. Turn on the external device and start it playing.
LINE OUT Connection
Connect an input of auxiliary device to the
LINE OUT (L/R) connector.
If your device has only one input for audio(mono),
connect it to the left audio jack on the unit.
White
Red
Audio cable
Connecting 13
USB Connection
SD card Connection
Connect a USB device (or MP3 player, etc.) to the
USB ports on the unit.
Connect a SD card to the SD CARD slot on the unit.
2
USB device
,,Note
yy Removing the USB device from the unit :
1. Choose a different function.
2. Remove the USB device from the unit.
yy USB function will be displayed when the
device is inserted.
SD card
,,Note
yy Removing the SD card from the unit:
1. Choose a different function.
2. Remove the SD card from the unit.
yy SD card function will be displayed when the
device is inserted.
Connecting
4%$"3%
14 Operating
Basic Operations
USB/SD Operations
,,Note
yy Files are recognized as below.
*
Connect the USB device to the USB port. Or connect
the SD card to the SD CARD slot. When you connect
the USB device or SD card, the player plays an
audio file contained in the USB / SD storage device
automatically.
To
Playback
Pause
3
Do this
Press N.
Press N during playback.
Press V to go to the next file.
Operating
Skipping to Playing less than 4 seconds,
the next/ Press C to go to the previous file.
previous file
Playing after 4 seconds, press C
to go to the beginning of the file.
Playing
repeatedly
Press REPEAT repeatedly.
ONE<-> ALL
yy Do not extract the USB device or SD card
during operation. (play, etc.)
yy Folders will be presented as the following
order;
ROOT FOLDER 1 FOLDER 3
FOLDER 7 FOLDER 8 FOLDER 5
FOLDER 6
yy Regular back up is recommended to prevent
data loss.
yy File will be played from $ file No.1 to $ file
No.14 one by one.
yy If the USB device and SD card is connected
to the unit at the same time, use the unit by
changing a function.
yy Files will be presented in order recorded and
may be presented differently according to the
record circumstances.
yy The resume point may be cleared when in the
cases below.
yy In case of the folder name, only numbers
are supported. (The other characters are
displayed as “_”.).
,,Note
-- Turning off the unit.
-- Removing the USB device or SD card from
the unit.
-- Pulling out the power cord.
-- Changing to a function.
yy When you press and hold C/V, you can
move to a folder and play a first song in the
folder. Also you can skip to the next folder
when you press C/V button within a
certain period of time.
*ROOT : The first screen you can see when
a computer recognize the USB / SD card are
“ROOT”
Operating 15
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.
yy Version : 4.2
yy Codec : SBC
Bluetooth Profiles
In order to use Bluetooth wireless technology,
devices must be able to interpret certain profiles. This
unit is compatible with following profile.
A2DP (Advanced Audio Distribution Profile)
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. Select the BT(Bluetooth) function by using the
F. Appears “bt” and Bluetooth icon blink quickly in
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-RM2(XX)”.
,,Note
yy 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-RM2(08)” on your Bluetooth device.
yy Depending on the Bluetooth device type,
some devices have a different pairing way. For
details about Bluetooth pairing, refer to your
Bluetooth device manual.
3. When this unit is successfully connected with
your Bluetooth device, “ COnnECtEd” appears on
the display window. Then “bt” and Bluetooth icon
will appear on the display window.
4. Listen to music.
To play a music stored on your Bluetooth device,
refer to your Bluetooth device’s user guide.
3
Operating
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.
yy Available Devices : Smart phone, MP3, Notebook,
etc.
Listening to music stored on the
Bluetooth devices
16 Operating
,,Note
yy 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 :
3
,,Note
yy The sound may be interrupted when the
connection has interference from other
electronic devices.
yy Depending on the type of the device, you
may not be able to use the BT(Bluetooth)
function.
-- There is a obstacle between the unit and
the Bluetooth device.
yy You can enjoy wireless system using phone,
MP3, Notebook, etc.
-- There is a device using same frequency
with Bluetooth technology such as a
medical equipment, a microwave or a
wireless LAN device.
yy The more distance between the unit and the
Bluetooth device, the lower the sound quality
becomes.
Operating
yy If Bluetooth connection does not work well,
try pairing it again.
yy Bluetooth connection will be disconnected
when the unit is turned off or the Bluetooth
device gets too far from the unit.
yy To connect a new Bluetooth device,
disconnect the currently connected
Bluetooth device and connect a new
Bluetooth device.
yy When Bluetooth connection is disconnected,
connect the Bluetooth device to the unit
again.
yy When a Bluetooth device is not connected,
Bluetooth icon on the display window blinks.
yy When you use the BT(Bluetooth) function,
adjust the volume to a proper level on the
Bluetooth device.
yy If you change the function, the Bluetooth
device is disconnected.
yy When entering BT(Bluetooth) function, this
unit automatically connect to Bluetooth
device which is connected the last or
playbacked the last. (Auto connection
may not be supported depending on the
connected device specifications.)
Operating 17
Other Operations
Using Microphone
1. Connect your microphone to the MIC jack.
2. Play the music you want.
3. Sing along with the accompaniment. Adjust the
microphone volume by rotating MIC VOLUME
clockwise or counterclockwise.
,,Note
yy When not using the microphone, set the
MIC VOLUME to minimum or turn off the
MIC and remove the microphone from the
MIC jack.
yy If sound through the microphone is extremely
loud, it may be distorted. In this case, rotate
MIC VOLUME to minimum.
yy You can’t adjust microphone’s volume by
using the MASTER VOLUME. Microphone’s
volume can be adjusted by MIC VOLUME.
You can give an echo effect to the sound from the
microphones.
Rotate the MIC ECHO to increase the echo volume
or decrease it.
Setting the USER EQ
You can adjust the sound level of Bass and Treble as
your preference.
Rotate BASS or TREBLE to adjust the sound level.
3
Operating
yy If the microphone is set too near the speaker,
a howling sound may be produced. In this
case, move the microphone away from the
speaker or decrease the sound level by using
the MIC VOLUME.
Adjusting the ECHO volume
18 Troubleshooting
Troubleshooting
General
Problem
Cause & Solution
yy Turn off the power of this unit and the connected external device (TV, Woofer,
DVD-player, Amplifier, etc.) and turn them on again.
The unit does not work
properly.
yy Disconnect the power cord of this unit and the connected external device (TV,
Woofer, DVD-player, Amplifier, etc.) and then try connecting again.
yy Previous setting may not be saved when device power is shut off.
No Power.
yy The power cord is not plugged in. Plug in the power cord.
yy Check whether electricity failed.
Check the condition by operating other electronic devices using the same
AC outlet.
No sound.
yy Check whether you select right function.
Press function button and check if you have selected the right function.
4
Troubleshooting
Appendix 19
General specifications
General
Power requirements
Refer to the main label on the unit.
Power consumption
Refer to the main label on the unit.
Dimensions (W x H x D)
Approx. 430 mm X 655 mm X 385 mm
Operating temperature
5 °C to 35 °C
Operating humidity
5 % to 60 % RH
Inputs
Analog audio in (LINE IN)
0.4 Vrms (1 kHz, 0 dB), 600 Ω, RCA jack (L, R)
Analog audio out (LINE OUT)
1.0 Vrms (1 kHz, 0 dB), 600 Ω, RCA jack (L, R)
Microphone (MIC 1/2)
Sensitivity 20 mV (1 kHz), 6.3 mm jack x 2
System
Frequency Response
60 to 20,000 Hz
Signal-to-noise ratio
More than 70 dB
Dynamic range
More than 70 dB
Bus Power Supply (USB)
5 V 0 500 mA
5
80 W (3 Ω at 1 KHz, 10 % THD)
Appendix
Amplifier (RMS Output power)
Total output
yy Design and specifications are subject to change without notice.
20 Appendix
Maintenance
Trademarks and
Licenses
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
5
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.
The Bluetooth® word mark and logos are registered
trademarks 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.
Appendix

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