User manual Sound Bar
Auto power down
This unit supports turning off by itself for energy consumption saving.
Portable In
Listen to music from your portable device. (MP3 player, Notebook, Smart phone, etc..)
Please check and identify the supplied accessories.



Replacement of battery

Remove the battery cover on the rear of the Remote Control, and insert the (size AAA) battery with + and - matched correctly



LED indicator of wireless subwoofer
Yellow green (Blink) – Attempting to make connection.
Yellow green – The connection is completed.
Red/ Yellow green (Blink alternately) – The wireless subwoofer connection is initialized.
Off (No display) – The power cord of wireless subwoofer is disconnected.
Setting up the wireless subwoofer for the first time
1. Connect the power cord of the wireless subwoofer to the outlet.
2. Turn on the main unit : The main unit and wireless subwoofer will be automatically connected.
Manually pairing wireless subwoofer
When your connection is not completed, you can see the red LED or the blinking of yellow-green LED on the wireless subwoofer and the subwoofer does not make sound. To solve the problem, follow the below steps.
1. Adjust volume level of the main unit to minimum by pressing VOL – button repeatedly until standby LED on the main unit blinks slowly.
2. Press and hold
(Mute) on the remote control for about 3 seconds. - The standby LED on the main unit blinks quickly
3. If the LED of the wireless subwoofer already blinks in yellow-green continually, you can skip this step. Press and hold PAIRING on the back of the wireless subwoofer for more than 5 seconds.

- The LED of the wireless subwoofer lights up alternately in red and yellow-green.
4. Disconnect the power cord of the main unit and the wireless subwoofer.
5. Connect them again after the LED of the main unit and the wireless subwoofer is fully turned off. The main unit and the wireless subwoofer will be paired automatically when you turn on the main unit.
- When the connection is completed, you can see the yellow-green LED on the subwoofer
Note
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.

2. Set the input source to OPTICAL. Press F button repeatedly until the function is selected.
Note
[Sound]
[TV Sound output]
[External speaker (Optical)] y Details of TV setting menu vary depending on the manufacturers or models of your TV..OPTICAL IN connection
Connect an optical output jack of external devices to the OPTICAL IN jack.

1. Connect the OPTICAL IN jack on the back of the unit to optical out jack of your TV (or digital device etc.)
2. Select the input source to OPTICAL by pressing F button repeatedly until the function is selected.
3. Listen to sound.
4. Press F to exit from OPTICAL
PORT. IN connection

Listening to music from your portable player
The unit can be used to play the music from many types of portable players or external devices.
This function is useful when you want to watch movies at low volume late at night. Set Night mode to On to reduce the sound intensity and improve fineness and softness.
Press NIGHT ON/OFF button to turn on or off night mode.
Press
(Mute) to mute your unit. To cancel it, press
(Mute) again on the remote control or change the volume level.
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 3 seconds.
To turn off this function, press and hold NIGHT OFF about 3 seconds.
Auto power down
This unit will turn itself off to save electric consumption in the case main unit is not connected to external device and is not used for 15 minutes.
It will also shut itself off after six hours when the Main unit has been connected to other device using analog input. (Ex : Portable, etc..)
This unit automatically turns on by an input source :
Optical 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 is ready to pair. Connect your Bluetooth device and play your music.
This function turns on or off when you press AUTO POWER ON/OFF.
This unit recognizes input signals such as optical and Bluetooth. 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, the Bluetooth function is selected. Play your music on the Bluetooth device.
Setting the surround mode
This system has a number of pre-set surround sound fields. You can select a desired sound mode by using each sound mode button.

Adjust the woofer level settings
You can adjust the sound level of woofer by pressing WOOFER LEVEL -/+ button.
PROBLEM | CAUSE & CORRECTION |
| The unit does not work properly. |
|
| No Power |
|
| No sound |
|
| No woofer sound |
|
| The remote control does not work properly. |
|
| The AUTO POWER function does not work. |
|
| When you feel the output sound of the unit is low. | Check the details below and adjust the unit according to them.
|
PROBLEM | CAUSE & CORRECTION |
| This device may have wireless interference. |
|
| Bluetooth device may malfunction or make noise in the following cases. |
|


* Designs and specifications are subject to change without prior notice.
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 SH3K 2.1ch 300W Soundbar with Wireless Subwoofer
Additionally, the document applies to other LG Electronics models: SPH4B-W