Sound Bar User Manual
You can organize the cable with cable ties.
1. Hold the cables together with cable ties as shown below.
2. Tighten cable ties

Note
Connect the unit to the power supply with the supplied AC adapter.
1. Connect the supplied AC power cord to the AC adapter.
2. Connect the AC adapter cable to DC IN adapter input.
3. Plug the AC power cord into an AC outlet.

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.
Wireless subwoofer connection
LED indicator of wireless subwoofer

Setting up the wireless subwoofer for the first time
1. Connect the power cord of the sound bar and the wireless subwoofer to the outlet.
2. Turn on the sound bar. The sound bar and the wireless subwoofer will be automatically connected.
- Green LED on the rear of wireless subwoofer turns on.
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

- The green LED on the rear of the wireless subwoofer blinks quickly. (If the green LED does not blink, press and hold the PAIRING.)
2. Turn on the sound bar.
- Pairing is completed. The green LED on the rear of the wireless subwoofer turns on.
Note

Connecting the rear speakers
1. Connect the black stripe wire to the terminal marked - (minus) and the other end to the terminal marked + (plus)

2. Connect the wireless receiver and the rear speakers (left, right) with the speaker cables

LED indicator of wireless receiver

Setting up the wireless receiver for the first time
1. Connect the power cord to the wireless receiver to the outlet.
2. Turn on the main unit : The sound bar and wireless receiver will be automatically connected. - Yellow - green LED on the wireless receiver turns on.
Manually pairing wireless receiver
When your connection is not completed, you can see the red LED on the wireless receiver and rear speakers are not made sound. To solve the problem, follow the below steps.
1. Press PAIRING on the rear of the wireless receiver

- The yellow - green LED on the wireless receiver blinks quickly.
2. Turn on the main unit - Paring is completed. The yellow - green LED on the wireless receiver turns on.
1. Connect the USB device to the USB port.
2. Select the USB function by pressing F repeatedly

Note

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 SOUND EFFECT on the remote control for about 3 seconds. “ON - TV REMOTE” appears and you can control this unit by your TV remote control.
To check the status of this function, press and hold SOUND EFFECT on the remote control.
To turn off this function, press and hold SOUND EFFECT on the remote control and press it once again while “ON - TV REMOTE” is scrolled.
Note
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.
To turn on this function, press and hold
on the remote control for about 3 seconds and press it once again while “OFF - AUTO POWER” is scrolled.
To check the status of this function, press and hold
on the remote control.
To turn off this function, press and hold
on the remote control for about 3 seconds and press it once again while “ON - AUTO POWER” is scrolled.
Note
Auto function change
This unit recognizes input signals such as Optical,
HDMI ARC, 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 you turn on your TV or an external device
When you turn on your TV or an external device connected by the optical, LG sound sync (optical or wireless) or HDMI ARC this sound bar will change to a suitable function so you can listen to the sound through it
Note
Quick Start
This unit can stay in standby mode with low power consumption, so that the unit can reduce boot time when you turn on this unit.
on the unit for 3 seconds when the unit is turned on. “ON - Q. START” appears in display.
on the unit for 3 seconds again when the unit is turned on. “OFF - Q. START” appears in displayNote
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. y Available Devices : Smart phone, MP3, Notebook, etc. y Version: 4.0 y Codec: SBC, AAC
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)
Listening to Music of a 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.
1 Select the Bluetooth function by pressing F repeatedly. Appears “BT” and then “READY” in display window.
2 Operate the Bluetooth device and perform the pairing operation. When searching for this unit on your 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 SN6Y(XX)”
3 Select the “LG SN6Y(XX)”.
Note
4. When this unit is successfully connected with your Bluetooth device, “PAIRED” => your device’s name => “BT” appears on the display window.
Note
on the remote control. The connected Bluetooth device’s name is displayed.5. Listen to music.
To play music in your Bluetooth device, refer to your Bluetooth device’s user guide.
Note
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 the case below :
Note
Controls connected Bluetooth device
You can control the connected Bluetooth device from the unit; play, pause, skip, volume.
Note
Bluetooth connection lock (BT LOCK)
You can limit Bluetooth connection to only BT (Bluetooth) and LG TV function to prevent unintended Bluetooth connection.
To turn on this function, press and hold
on the remote control for about 3 seconds in BT Bluetooth) function and press it once again while OFF - BT LOCK” is scrolled. Then you can limit Bluetooth connection.
To turn off this function, press and hold
on the remote control for about 3 seconds in BT Bluetooth) function and press it once again while ON - BT LOCK” is scrolled.
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” app.
Install “Music Flow Bluetooth” App onto Your BLUETOOTH Device
1. Install “Music Flow Bluetooth” app through QR code. Use the scanning software to scan the QR code.

2. Tap an icon for installation.
Note
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. If you want to get more information to operate, tap [Setting] and tap [Help] menu.
Note
1. Connect the OPTICAL IN jack on the back of the unit to OPTICAL OUT jack on the TV using an OPTICAL cable

2. Select the input source to OPT/HDMI ARC by pressing F repeatedly. You can see “OPT” on the display window if connecting normally between this unit and your TV.
Note

You can control some functions of this unit by your TV’s remote control with LG Sound Sync. It is compatible with the LG TV that is supported LG Sound Sync. Make sure of the LG Sound Sync logo on your TV.
Controllable function by LG TV’s remote control: Volume up/down, mute
Make one of the following connections, depending on the capabilities of your equipment.
Note
1. Connect your LG TV to the unit by using an optical cable

2. Set up the sound output of TV to listen to the sound through this unit
3. Turn on the unit by pressing 1.
4. Select the input source to OPT/HDMI ARC by ressing F repeatedly. You can see “LGOPT” on the display window if
connecting normally between this unit and your TV.
Symptoms | Cause & Solution |
|---|---|
The unit does not work properly. | • Turn off the power of this unit and the connected external device (TV Woofer, DVD-player Amplifier etc.) and turn them on again. • Disconnect the power cord of this unit and the connected external device (TV Woofer, DVD-player Amplifier etc.) and then try connecting again. • Previous setting may not be saved when device power is shut off |
No Power | • The power cord is unplugged. Plug in the power cord. • Check whether electricity failed. Check the condition by operating other electronic devices. |
No sound | • Incorrect input source is selected. Check the input source and select the correct input source. • The mute function is activated. Press [ (Mute) or adjust the volume level to cancel the mute function. • When you are using connection with a external device (set top box, Bluetooth device etc.), adjust volume level of the device. |
No woofer sound | • The power cord of the subwoofer is not connected. Plug the power cord into the wall outlet securely • Pairing between the unit and the subwoofer gets disconnected. Connect the unit and the subwoofer (Page 17) |
The remote control does not work properly. | • The remote control is too far from the unit. Operate the remote control within about 7 m (23 ft). • There is an obstacle in the path of the remote control and the unit. Remove the obstacle. • The batteries in the remote control is exhausted. Replace the batteries with new one. |
The AUTO POWER function does not work. | • Check connection of the external device such as TV, DVD/Blu-Ray player or Bluetooth device. • Check the state of SIMPLINK on your LG TV and turn off SIMPLINK. • Depending on the connected device, this function may not operate. |
LG Sound Sync does not work. | • Check whether your LG TV supports LG Sound Sync. • Check connection of LG Sound Sync (Optical or wireless). • Check sound setting of your TV and this unit. |
Symptoms | Cause & Solution |
|---|---|
The unit does not connect with Bluetooth device | • Turn off the Bluetooth connection lock function. (Page 36) |
When you feel the output sound of the unit is low. | Check the details below and adjust the unit according to them. • With the sound bar connected with TV, change the AUDIO DIGITAL OUT setting on TV Setup Menu from [PCM] to [AUTO] or [BITSTREAM]. • With the sound bar connected with Player change the AUDIO DIGITAL OUT setting on Player Setup Menu from [PCM] to [PRIMARY PASS-THROUGH] or [BITSTREAM]. • Change Audio DRC setting on connected device setup menu to [OFF] state. • Make sure Night time mode is not On. Turn [OFF] Night time mode. |
USB is not recognized. | • Format the USB device and connect it again. When formatting the USB device, select the available file system. |
Symptoms | Cause & Solution |
|---|---|
This device may have wireless interference. | • Wireless may not operate normally in weak signal area. • Please install the device close enough to wireless subwoofer • Do not install the device on metal furniture for optimum performance. |
Bluetooth device may malfunction or make noise in the following cases. | • When any part of your body contact the transceiver of the Bluetooth device or sound bar. • When there is an obstacle or wall or the device is installed in a secluded spot. • When there is a device (a wireless LAN, a medical equipment or a microwave) using same frequency make the distance between the products as far away as possible each other • When connecting the device to the Bluetooth device, make the distance between the products as close as possible each other. • When the device gets too far from the Bluetooth device, the connection is disconnected and also malfunction may occur |
Symptoms | Cause & Solution |
|---|---|
Can not change input source with F such as BT (Bluetooth), HDMI etc. and only [DEMO] indication is showing in the front display. | Unplug the power cord and plug it in again. If that doesn't work, after setting the volume to 2, press and hold F (About 5 seconds) on the main unit until the display indicates current selected function. |
Remote Control does not work. (No response) |
Reference file: LG SN6Y 3.1 Channel High Res Audio Sound Bar
Additionally, the document applies to other LG Electronics models: SPN5B-W