OWNER’S MANUAL Wireless Sound Bar

Replacement of Battery

Remove the battery cover on the rear of the remote control, and insert the battery + with - and matched correctly.
1.
(Power) : Switches the unit ON or OFF.
F (Function) : Selects the function and the input source.
ASC
: Analyzes the property of input sound and provides the sound optimized for the content in real time.
(Mute) : Mutes the sound.
VOL (Volume) o/p: Adjusts speaker volume.
BASS BLAST: Reinforces the bass and powerful sound.
CINEMA: Selects cinematic surround sound.
2.
(Skip/Search) :
(Play/Pause) : Starts playback. / Pauses playback.
NIGHT ON/OFF :
WOOFER LEVEL +/- : Adjusts sound level of subwoofer.
AUTO POWER ON/OFF :

Rear panel

1. +/- (Volume) : Adjusts volume level
F (Function) : Selects the function and input source.
/! (Standby/On)
2. DC IN : AC adapter input
3. OPTICAL IN : Optical input
4. USB /
: Connect to a USB device
About LED condition

Installing the sound bar
You can hear the sound by connecting the unit to the other device : TV, Blu-ray disc player, DVD player, etc. Place the unit in front of the TV and connect it to the device you want. (Pages 14 - 16)
You can place the wireless subwoofer anywhere in your room. But it is better to place the subwoofer near the main unit. Turn it slightly toward the center of the room to reduce the wall reflections.

Caution: For best performance of wireless connection such as Bluetooth or wireless subwoofer, do not install the unit on Metallic furniture because wireless connection communicates through a module positioned on the bottom of the unit. y Be careful not to make scratches on the surface of the Unit / Subwoofer when installing or moving them.
Note: For the convenient button usage, it is recommended to have some distance between the soundbar and your TV when you install the sound bar.
Connect the speaker to the power supply with the supplied AC adapter.

Caution: Only use the AC adapter supplied with this device. Do not use a power supply from another device or manufacturer. Using any other power cable or power supply may cause damage to the device and void your warranty.
LED indicator of wireless subwoofer
Setting up the wireless subwoofer for the first time
Manually pairing wireless subwoofer: When your connection is not completed, you can check red LED on the wireless subwoofer and the wireless subwoofer does not make sound. To solve the problem, follow the steps below
1. Press PAIRING on the rear of the wireless subwoofer.

2. Turn on the sound bar
3. Pairing is completed. The yellow green LED on the front of the wireless subwoofer turns on.
Using an OPTICAL cable
1. Connect the OPTICAL IN jack on the back of the unit to OPTICAL OUT jack on the TV using an OPTICAL cable. Optical cable

2. Select the input source to OPTICAL by pressing F repeatedly. You can see OPTICAL LED turns on. Then optical function is selected.
OPTICAL IN connection
Connect an optical output jack of external devices to the OPTICAL IN jack.

Optional equipment connection: You can enjoy both sound and picture from the external device you connect.

USB connection
Connect USB memory device to the USB port on the back of the unit.

For more information of playing files on a USB, refer to the page 19. Removing the USB Device from the unit.
Compatible USB devices
USB device requirement
USB operation

Note: The resume point may be cleared when you pull out the power cord or removing the USB device from the unit. If the USB function is not working, check the USB function is selected. When you pause the USB playback, USB LED on the main unit blinks.
Turn off the sound temporarily
Press
(Mute) to mute your unit.
To cancel it, press
(Mute) again on the remote control or change the volume level.
Using your TV remote control
You can control some functions of this unit by your TV remote control even by other company’s product. Controllable functions are volume up/down and mute.
Press and hold NIGHT ON on the remote control for about 2 seconds. Then the standby LED (Red) blinks once and you can control this unit by your TV remote control.
To turn off this function, press and hold NIGHT OFF on the remote control for about 2 seconds. Then the standby LED (Red) blinks once and you cannot control this unit by your TV remote control.
Auto display Dimmer
Display window will be darkened automatically if there is no key input for 15 seconds. When you press any button, the display window will be brighten.
Auto power down
This unit will turn itself off to save electric consumption if the main unit is not connected to an external device and has not been used for 15 minutes.
AUTO POWER On/Off
This unit automatically turns on by an input source : Optical, LG TV or Bluetooth. When you turn on your TV or an external device connected to this unit, this unit recognizes the input signal and selects the suitable function. You can hear the sound from your device. If you try to connect your Bluetooth device, this unit turns on and the unit will be connected to your Bluetooth device. This function turns on or off each time you press AUTO POWER ON/OFF.
Auto function change
This unit recognizes input signals such as Optical, Bluetooth and LG TV and then changes suitable function automatically
When optical signal comes in: When you turn on the external device connected to this unit by an optical cable, this unit changes the function to optical. You can hear the sound from your device.
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 signal comes in: When you turn on your LG TV connected by LG Sound Sync (Wireless connection), this unit changes the function to LG TV. You can hear the sound from your TV.
Listening to music stored on the BLUETOOTH devices
Pairing your unit and BLUETOOTH device: Before you start the pairing procedure, make sure that the Bluetooth feature on your smart device is turned on. Refer to your Bluetooth device’s user guide. Once a pairing operation is performed, it does not need to be performed again.
BLUETOOTH connection lock (BT lock)
You can limit Bluetooth connections to only BT (Bluetooth) and LG TV function to prevent unintended Bluetooth connections.
Press and hold AUTO POWER ON on the remote control for about 2 seconds to turn on this function in BT (Bluetooth) function. Then the standby LED (Red) blinks once. After that, this function is enabled.
To turn off this function, press and hold AUTO POWER OFF on the remote control for about 2 seconds in BT (Bluetooth) function. Then the standby LED (Red) blinks once. After that, this function is disabled.
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.

2. Tap an icon for installation.
Install “Music Flow Bluetooth” App through “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.
The unit does not work properly.
No Power
No sound
(Mute) or adjust the volume level to cancel the mute function.No woofer sound
The remote control does not work properly.
The AUTO POWER function does not work.
LG Sound Sync does not work.
The unit does not connect with Bluetooth device
When you feel the output sound of the unit is low. Check the details below and adjust the unit according to them.
This device may have wireless interference.
Bluetooth device may malfunction or make noise in the following cases.

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
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.
Reference file: LG SL3D 2.1 Channel 300W Sound Bar
Additionally, the document applies to other LG Electronics models: SPH4B-W