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LG RK7 Owner's Manual

High power speaker system
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Please read this manual carefully before operating your set and
retain it for future reference.
Copyright © 2018 LG Electronics Inc. All Rights Reserved.



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  Summary of Contents for LG RK7

  • Page 1 OWNER’S MANUAL HIGH POWER SPEAKER SYSTEM Please read this manual carefully before operating your set and retain it for future reference. MODEL MFL69941718 Copyright © 2018 LG Electronics Inc. All Rights Reserved.
  • Page 2 Getting Started Safety Information CAUTION: Do not block any ventilation openings. Install in accordance with the manufacturer’ s instructions. Slots and openings in the cabinet are provided CAUTION for ventilation and to ensure reliable operation of RISK OF ELECTRIC SHOCK the product and to protect it from over heating.
  • Page 3 Getting Started CAUTION concerning the Power Cord This device is equipped with a portable battery or accumulator. The Power Plug is the disconnecting device. In case How to Safely remove the batteries or the battery of an emergency, the Power Plug must remain readily pack from the equipment: accessible.
  • Page 4: Table Of Contents

    – Listening to the radio – AUX OUT Connection – Improving poor FM reception – OPTICAL IN Connection – Presetting the Radio Stations LG Sound Sync – Deleting all the saved stations – USB Connection Sound adjustment – Antenna Connection –...
  • Page 5 Table of Contents Troubleshooting Troubleshooting Advanced Operations – General – JUKE BOX Playback Other Operations Appendix – Turn off the sound temporarily – DEMO General specifications – DRC (Dynamic range control) Trademarks and Licenses – Using your TV remote control Maintenance –...
  • Page 6: Getting Started

    Music Flow Bluetooth Music Flow Bluetooth is an app designed to let you take control of some of LG’ s latest audio devices. (Page 26~27) LG Sound Sync Controls volume level of this unit by the remote control of your LG TV that is compatible with LG Sound Sync.
  • Page 7: Playable File Requirement

    Getting Started Playable file Compatible USB Devices y MP3 Player: Flash type MP3 player. Requirement y USB Flash Drive: Devices that support USB2.0 or USB1.1. y The USB function of this unit does not support all Music file requirement USB devices. MP3/WMA file compatibility with this unit is limited as follows.
  • Page 8: Remote Control

    LIGHTING: Selects the lighting mode. VOL (Volume) +/- : Adjusts speaker volume. F (Function): Selects the function and input source. Input source / Function Display Optical OPTICAL LG Sound Sync (Optical) LG OPT AUX input Bluetooth LG Sound Sync (Wireless) LG TV Radio [(Mute): - Mutes the sound.
  • Page 9 Getting Started • • • • • • • • • • • • • • b • • • • • • • • • • • • • • • • • • • • • • • • • • • c • • • • • • • • • • • • • REPEAT: Listens to your files repeatedly or randomly.
  • Page 10: Top Panel

    - Selects the function and input source. - Press and hold to select the PARTY LINK with AUX. Input source / Function Display Optical OPTICAL LG Sound Sync (Optical) LG OPT AUX input Bluetooth LG Sound Sync (Wireless) LG TV Radio...
  • Page 11: Front Panel / Rear Panel

    Getting Started Front panel / Rear panel a Remote sensor b FM ANTENNA c MIC (Microphone) jack d AUX IN / OUT (L/R) e OPTICAL IN f USB port g AC IN socket...
  • Page 12: How To Place The Unit

    Getting Started How to place the unit Vertical Automatically optimize the sound It helps to automatically optimize the sound to suit the installation conditions (Horizontal or Vertical). If the installation method is changed (‘Horizontal Vertical’ or ‘Vertical Horizontal’), it is indicated by ‘VERTICAL MODE’...
  • Page 13 It allows you to connect a Press and hold N for 5 seconds in BT Bluetooth device only on (Bluetooth) function. (Page 25) BT (Bluetooth) and LG TV Press and hold N for 5 seconds in BT functions. (Bluetooth) function. Initial setting of this function was set to off.
  • Page 14: Connecting

    Connecting AC Power Cord Optional Equipment Connection Connection 1. Connect one end of the AC power cord (included) AUX IN Connection to the AC IN socket. Connect an output of auxiliary device (Camcorder, TV, Player, etc) to the AUX IN (L/R) connector. If your device has only one output for audio(mono), connect it to the left (white) audio jack on the unit.
  • Page 15: Aux Out Connection

    4. Press to save the delay setting. Note y This function is not available on LG TV function. y The initial delay is 30 ms. If you want to change the Delay time, press C V. The Audio cable connected device’...
  • Page 16 Connecting Listening to music from your external device The unit can be used to play music from many types of external device. 1. Connect the external device to the AUX IN connector of the unit. 2. Turn the power on by pressing 1. 3.
  • Page 17: Optical In Connection

    You can control some functions of this unit by Optical cable your TV’ s remote control with LG Sound Sync. It is compatible with LG TV that supports LG Sound Sync. Make sure your TV has the LG Sound Sync logo.
  • Page 18 “PAIRED” appears on the display window for y Make sure of the condition of this unit and about 3 seconds and then you can see “LG TV” the connection in the cases below when on the display window if the TV and this unit are using LG Sound Sync.
  • Page 19: Usb Connection

    Connecting USB Connection Antenna Connection Connect a USB device (or MP3 player, etc.) to the Connect the supplied FM antenna for listening to USB ports on the unit. the radio. Connect the FM wire antenna to the FM antenna connector. USB device FM antenna Note...
  • Page 20: Operating

    Operating Basic Operations Note y Repeat/Shuffle playback operates as follows. On Display Description USB Operations Plays songs in order and stops the playback. 1. Connect the USB device to the USB port. Plays a same song repeatedly. 2. Select USB function by pressing Plays songs in a folder FOLDER repeatedly.
  • Page 21: Selecting A Folder And An Mp3/Wma File

    Operating Selecting a folder and Note y USB Folders/Files are recognized as below. an MP3/WMA file 1. Press PRESET·FOLDER W/S repeatedly until a desired folder appears. 2. Select the file you want by using C 3. Press N to play it. The first file of folder will be played.
  • Page 22: Deleting A File/Folder Or Format

    Operating Deleting a file/folder or format AUTO DJ You can delete file, folder on your USB or format the Auto DJ blends the end of one song into the USB. beginning of another for seamless playback. It equalizes volume across files for uninterrupted 1.
  • Page 23: Using Bluetooth® Wireless Technology

    Bluetooth device y Version: 4.2 display depending on the type of Bluetooth y Codec: SBC, AAC, AptX, AptX HD device. Your unit appears as “LG RK7 (XX)” . Note Bluetooth Profiles y XX means the last two digits of Bluetooth address.
  • Page 24 Operating Note 3. When this unit is successfully connected with your Bluetooth device, “PAIRED” appears on the y The sound may be interrupted when the display window and change to Bluetooth device connection has interference from other name soon. Then “BT” will appear on the display electronic devices.
  • Page 25 Bluetooth connection lock (BT LOCK) You can limit Bluetooth connection to only BT (Bluetooth) and LG TV function to prevent unintended Bluetooth connections. To turn this function on, press and hold N for about 5 seconds in BT (Bluetooth) function.
  • Page 26: Using The Music Flow Bluetooth App

    Operating Using the Music Flow Install “Music Flow Bluetooth” App onto Your Bluetooth Device Bluetooth App There are two ways to install “Music Flow Bluetooth” app onto your Bluetooth device. Note Install “Music Flow Bluetooth” App y Only Android OS is available to use “Music through QR code Flow Bluetooth”...
  • Page 27: Activate Bluetooth With "Music Flow Bluetooth" App

    Operating Activate Bluetooth with “Music Install “Music Flow Bluetooth” App through “Google Android Market Flow Bluetooth” App (Google Play Store)” “Music Flow Bluetooth” app helps to connect your 1. Tap the “Google Android Market (Google Play Bluetooth device to this unit. Store)”...
  • Page 28: Radio Operations

    Operating Radio Operations Presetting the Radio Stations You can preset 50 stations for FM. Before tuning, make sure to turn down the volume. Be sure that FM antenna is connected. (Page 19) 1. Press F until FM appears in the display window. Listening to the radio 2.
  • Page 29: Sound Adjustment

    Operating Sound adjustment Note y On some speakers, sound may not be heard or heard in low sound depending on the sound mode. Setting the sound mode y By pressing BASS BLAST (or BASS BLAST+) on the remote control or pressing and This system has a number of pre-set surround sound holding SOUND EFFECT / BASS BLAST (or fields.
  • Page 30: Setting The User Eq

    Operating Setting the USER EQ You can adjust the sound level of Bass, Middle and Treble as your preference. 1. Press USER EQ / DEMO on the unit. “USER EQ” is displayed. 2. Press USER EQ / DEMO on the unit repeatedly until desired setting appears in the display window.
  • Page 31: Advanced Operations

    Operating Advanced Operations Editing JUKE BOX 1. Press and hold JUKEBOX/MEMORY on the remote control to enter the edit mode. JUKE BOX Playback (Playing will be stopped when you press JUKEBOX/MEMORY on the remote control.) JUKE BOX function enables you to make a playlist of 2.
  • Page 32: Other Operations

    - Without input key in 10 sec, the DEMO will y Depending on the remote control, this playback automatically. function may not work well. y This function does not operate on LG TV's magic remote control. DRC (Dynamic range control) y This function only operates on the OPTICAL function.
  • Page 33: Using Microphone

    It is not available on the mono source. y MIC function does not operate on OPTICAL y To initialize it, change the function or or LG OPT function. disconnect the microphone. y This function may not be initialized depending...
  • Page 34 Operating KEY CHANGER VOCAL EFFECTS You can adjust the key to 9 steps (4 steps higher, 4 When you connect your microphone to the MIC jack, steps lower and the original key). you can enjoy karaoke function by changing voice in the various source.
  • Page 35: Lighting

    Operating LIGHTING ECHO When you connect your microphone to the MIC This function offers a party atmosphere by operating jack, you can give an echo effect to the sound from the lighting on the unit. the microphones by pressing ECHO on the remote To select mode, pressing LIGHTING repeatedly.
  • Page 36: Sleep Timer Setting

    Operating Sleep Timer Setting Auto power down Press SLEEP on the remote control repeatedly to This unit will turn itself off to save electricity in the select delay time between 10 and 180 minutes. case were the main unit is not connected to an After the delay time, the unit will be turned off.
  • Page 37: Auto Power On

    Bluetooth” app, Bluetooth function of this the AUTO POWER function. unit is turned on. On Display Description y If you turn on the unit using LG TV or Bluetooth function, proper function of this AUTO POWER function is ON-AUTO POWER unit is turned on.
  • Page 38: Auto Function Change

    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. Note y This function is not available during deleting.
  • Page 39: Setting The Clock

    Operating Setting the Clock Using your player as an alarm clock 1. Turn the unit on. 1. Turn the unit on. 2. Press and hold CLOCK on the remote control. 2. Press and hold ALARM on the remote control. 3. Select time mode by pressing C/V on the 3.
  • Page 40: Wireless Party Link Connection

    Operating WIRELESS PARTY LINK Setting the MULTI mode Connection You can enjoy the sound with multiple speakers. For enjoying WIRELESS PARTY LINK, you need to purchase other speakers. It is compatible with unit that supports WIRELESS Setting the DUAL mode PARTY LINK.
  • Page 41 Operating Note Note y This function only operates on BT(Bluetooth) y Check the following information when function. connecting to Bluetooth. y Time-out takes up to 1 minute to connect to - You can connect only one Bluetooth device in the MAIN unit. You cannot WIRELESS PARTY LINK.
  • Page 42: Troubleshooting

    The batteries in the remote control are exhausted. Replace the batteries with new ones. y Check whether your LG TV supports LG Sound Sync. LG Sound Sync does not y Check connection of LG Sound Sync.
  • Page 43: Appendix

    Appendix General specifications General Power requirements Refer to the main label on the unit. Power consumption Refer to the main label on the unit. Approx. 345 mm x 650 mm x 345 mm Dimensions (W x H x D) (Approx. 13.6 inch x 25.6 inch x 13.6 inch) Operating temperature 5 °C to 35 °C (41°...
  • Page 44: Trademarks And Licenses

    All other trademarks are trademarks of their registered trademarks owned by the Bluetooth respective owners. 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.
  • Page 45: Maintenance

    Appendix Maintenance 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.