OWNER’S MANUAL Mini Hi-Fi Audio Please read this manual carefully before operating your set and retain it for future reference. MODEL OK55 www.lg.com MFL70504347 Copyright ⓒ 2018 LG Electronics Inc. All Rights Reserved.
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.
Getting Started CAUTION concerning the Power Cord The Power Plug is the disconnecting device. In case of an emergency, the Power Plug must remain readily accessible. 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.
Table of Contents Table of Contents 1 Getting Started 3 Operating 2 6 7 7 7 7 8 10 12 Safety Information Unique Features Playable file Requirement – Music file requirement – Compatible USB Devices – USB device requirement Remote control Top panel Front panel / Rear panel 17 17 17 18 2 Connecting 14 14 14 15 15 AC Power Cord Connection Optional Equipment Connection – AUX IN Connection – PORT.
Table of Contents 27 27 27 27 27 28 28 28 29 29 31 32 32 32 32 32 33 35 36 36 36 37 37 38 38 38 39 40 Radio Operations – Listening to the radio – Improving poor FM reception – Presetting the Radio Stations – Deleting all the saved stations Sound adjustment – Setting the sound mode – Setting the USER EQ Advanced Operations – Recording to USB – JUKE BOX Playback Other Operations – Turn off the sound temporarily – CHILDSAFE Mode – DEMO – Resume stop – Using Microphone – LIGHTING – Sleep Timer Setting – Dimme
Getting Started Unique Features 1 BLUETOOTH® Getting Started Listens to music stored on your Bluetooth device. Portable In Listens to music from your portable device. (MP3, Notebook, etc.) Playback effects Listens to music with various sound and playback effects. USB Direct Recording Records music to your USB device. Music Flow Bluetooth Music Flow Bluetooth is an app designed to let you take control of some of LG’s latest audio devices.
Getting Started 7 Playable file Requirement yy MP3 Player : Flash type MP3 player. Music file requirement yy The USB function of this unit does not support all USB devices. yy Sampling frequency : within 32 to 48 kHz (MP3), within 32 to 48 kHz (WMA) yy Bit rate : within 32 to 320 kbps (MP3), 40 to 192 kbps (WMA) yy Maximum files : Data CD : 999 / USB : 2,000 yy USB Flash Drive : Devices that support USB2.0 or USB1.1.
Getting Started Remote control • • • • • • • • • • • • • • a• • • • • • • • • • • • • • 1 (Standby) : Turns the power on or off. B (Open/Close) : Opens and closes the disc tray. VOL (Volume) +/- : Adjusts speaker volume. 1 Getting Started F (Function) : Selects the function and input source. Input source / Function Disc USB AUX input Portable input Bluetooth LG Sound Sync (Wireless) Radio Display CD USB AUX PORTABLE BT LG TV FM [ (Mute): Mutes the sound.
Getting Started 9 • • • • • • • • • • • • • • c• • • • • • • • • • • • • • REPEAT : Listens to your tracks/files repeatedly or randomly. 0 to 9 numerical buttons : Selects numbered tracks, files, or preset number. TUNING-/+ : Selects the radio stations. CLOCK : Sets a clock and checks a time. C/V (Skip/Search) : -- Skips backward or forward. ALARM : With the ALARM function you can turn on CD, USB play and tuner reception at a desired time. -- Searches for a section within a track/file.
Getting Started Top panel a b c d e f g 1 Getting Started q h p i o j n m a 1 (Standby) Turns the power on or off. b USB REC / DEMO - Records to USB. - To stop Recording, press and hold for 3 seconds. - In power off status, if you press USB REC / DEMO, show demo mode. c USB Port You can play sound files by connecting the USB device. d Display window e PARTY ACCELERATOR lever Slide the lever to create a party atmosphere. l k f F (Function) Selects the function and input source.
Getting Started g 3WIRELESS LINK - Selects MAIN or OTHER on WIRELESS PARTY LINK mode. - Enable or disable WIRELESS PARTY LINK mode. i C (Skip/Search) - Skips backward. - Searches for a section within a track/file. - Selects the radio stations. 1, 2, 3 (DJ PAD) Press a desired sound pad. m DJ EFFECT Selects a desired DJ effect. USER EQ Selects the equalizer created by your own. (Page 28) LIGHTING Selects the lighting mode. V (Skip/Search) - Skips forward. - Searches for a section within a track/file.
Getting Started Front panel / Rear panel 1 Getting Started a b e fg c d h a (Remote sensor) e AUX IN (L/R) :Connect an auxiliary device. b MIC (Microphone) 1/2 jack f PORT. (Portable) IN :Connect a portable device. c Disc tray g ANTENNA (FM) d Lighting h AC IN socket >>Caution Place the speaker at a safe distance from the child’s reach. Otherwise it may result in the speaker falling down and causing personal injury and/or property damage.
Getting Started 13 Useful functions for using the unit To do ON OFF Do this Press and hold N for 5 seconds in BT(Bluetooth) function. Press and hold N for 5 seconds in BT(Bluetooth) function. Initial setting of this function was set to off. Auto Power On It allows the unit to turn on and off automatically by input (Page 37) signals : BT (Bluetooth) or LG TV ON OFF Turn off the unit by pressing 1 on the unit for 5 seconds. Turn off the unit by pressing 1 on the unit for 5 seconds.
Connecting AC Power Cord Connection Optional Equipment Connection 1. Connect one end of the AC power cord (included) to the AC IN socket. AUX IN Connection 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. 2 Connecting White Red 2. Plug the other end into the wall outlet.
Connecting 15 PORT. IN Connection Connect an output (earphone or line out) of portable device (MP3 or PMP etc) to the PORT. IN (3.5 mm) connector. Listening to music from your portable player or external device The unit can be used to play the music from many types of portable player or external device. 1. Connect the portable player to the PORT. IN connector of the unit. Or 2. Turn the power on by pressing 1. 3. Press F to select AUX or PORTABLE function. 4.
Connecting USB Connection Antenna Connection Connect a USB device (or MP3 player, etc.) to the USB ports on the unit. Connect the supplied FM antenna for listening to the radio. USB device 2 Connecting FM antenna ,,Note Be sure to fully extend the FM wire antenna. ,,Note Removing the USB device from the unit : 1. Choose a different function/mode or press Z twice in a row. 2. Remove the USB device from the unit.
Operating 17 Basic Operations CD/USB Operations 1. Insert the disc by pressing B. Or connect the USB device to the USB port. 2. Select CD or USB function by pressing F. Selecting a track/file directly Do this Press Z. Press N. Press N during playback. Description OFF Plays songs in order and stops the playback. ONE Plays a same song repeatedly. FOLDER Plays songs in a folder repeatedly. (Except AUDIO CD) ALL Plays all the songs repeatedly.
Operating Selecting a folder and an MP3/WMA file On the unit 1. Press SEARCH and rotate DJ SCRATCH / SEARCH & MULTI or C/V until a desired file appears. You can also search a folder if you press SEARCH again. ,,Note yy CD / USB Folders/Files are recognized as below. * 2. Press OK or N to play the selected file. When you search a folder, press OK to select a file in the folder, then press OK or N again. The selected file is played. On the remote control 3 1.
Operating 19 Deleting a file/folder or format You can delete file, folder on your USB or format the USB. 1. Select USB function by pressing F. 2. Press DELETE on the remote control repeatedly, the display changes as followings. DEL FILE DEL DIR FORMAT On Display Description DEL FILE Select the file you want to delete DEL DIR Select the folder you want to delete FORMAT Select to format the USB device. If you want to exit the current mode, press Z.
Operating AUTO DJ DJ PAD Auto DJ blends the end of one song into the beginning of another for seamless playback. It equalizes volume across tracks/files for uninterrupted playback. Press AUTO DJ on the remote control repeatedly, the display changes as followings. SHUFFLE 3 SEQUENTIAL OFF On Display OFF Description - SHUFFLE The music is played randomly on this mode. SEQUENTIAL The music is played repeatedly on this mode.
Operating 21 DJ LOOP PARTY KICK STARTER The certain section (about 1 sec) of sound is repeatedly played. (CD, USB Only) In power off state, this function turns on the unit with Party Kick Starter sound. During playback, press and hold DJ LOOP on the unit at the point you want. And you can cancel DJ LOOP function by releasing it. In power on state, this function mixes the music with Party Kick Starter sound. ,,Note In the power off state 1.
uring ion apuld and imite. 22 Operating Using BLUETOOTH® wireless technology Listening to music stored on the Bluetooth devices About Bluetooth 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. Bluetooth is wireless communication technology for short range connection.
Operating 23 3. When this unit is successfully connected with your Bluetooth device, “PAIRED” appears on the display window and change to Bluetooth device name soon. Then “BT” will appear on the display window. ,,Note yy "PAIRED" will momentarily appear on the display when you connect other devices for multi phone pairing. yy If the device name is unavailable, “_” will be displayed. 4. Listen to music. To play a music stored on your Bluetooth device, refer to your Bluetooth device’s user guide.
Operating Controls connected Bluetooth device You can control connected Bluetooth device by the unit; play, pause, stop, skip. ,,Note yy Only Android OS and iOS is available to use this function. yy This function may not be supported depending on the Bluetooth device, or operated differently. Bluetooth connection lock (BT LOCK) 3 Operating You can limit Bluetooth connection to only BT (Bluetooth) and LG TV function to prevent unintended Bluetooth connection.
Operating 25 Using the Music Flow Bluetooth App ,,Note yy Only Android OS is available to use “Music Flow Bluetooth” app with this unit. yy It is recommended to use the latest version of app. Install “Music Flow Bluetooth” App onto Your Bluetooth Device There are two ways to 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.
Operating Install “Music Flow Bluetooth” App through “Google Android Market (Google Play Store)” 1. Tap the “Google Android Market (Google Play Store)” icon. “Music Flow Bluetooth” app helps to connect your Bluetooth device to this unit. 2. In the search bar, type in the “Music Flow Bluetooth” and search it. 1. Tap “Music Flow Bluetooth” app icon on the home screen to open “Music Flow Bluetooth” app, and go to the main menu. 3.
Operating 27 Radio Operations Presetting the Radio Stations Be sure that FM antenna is connected. (Page 16) Before tuning, make sure to turn down the volume. Listening to the radio 1. Press F until FM appears in the display window. The last received station is tuned in. 2. Auto tuning : Press and hold TUNING-/+ on the remote control or C/V on the unit for about two seconds until the frequency indication starts to change, then release. Scanning stops when the unit tunes in a station. Or 3.
Operating Sound adjustment Setting the sound mode This system has a number of pre-set surround sound fields. The displayed items for the equalizer may be different depending on sound sources and effects. You can select a desired sound mode by using EQUALIZER on the remote control. 3 On Display BASS (BASS BLAST) or BASS+ (BASS BLAST+) Operating POP CLASSIC ROCK JAZZ Description Reinforces the bass and powerful sound.
Operating 29 Advanced Operations Recording to USB You can record a various sound source to USB. (CD, AUX, PORTABLE, FM) 1. Connect the USB device to the unit. 2. Press F to select a function you want to record. 3. Start the recording by pressing USB REC on the remote control or USB REC / DEMO on the unit. Function Status Result Play/Pause Recorded until stop To stop recording, press and hold USB REC on the remote control or USB REC / DEMO on the unit for 3 seconds. Otherwise, the recording continues.
Operating ,,Note yy For stable recording, the output sound level goes down on its own when you record music from CD to USB. yy You can only change volume level between MIN and 30 during recording. (Only CD function) yy When you stop recording, the file that has been recorded at that time will be stored. (Except when recording MP3/ WMA files that are in stop status.) 3 yy Do not remove the USB device or turn off the unit during USB recording.
Operating 31 JUKE BOX Playback Editing JUKE BOX JUKE BOX function enables you to make a playlist of your favorite tracks/files from a disc or USB device. A playlist of up to 100 tracks/files can be entered. 1. Press and hold JUKE BOX / MEMORY on the unit to enter the edit mode. (Playing will be stopped when you press JUKEBOX/MEMORY on the remote control.) Making JUKE BOX list 2. Press PRESET·FOLDER W/S on the remote control to select a track/file to edit. 1.
Operating Other Operations Turn off the sound temporarily Press [on the remote control to mute your sound. You can mute your unit, for example, to answer the telephone, the “MUTE” will appear in the display window. To cancel it, press [on the remote control again or change the volume level. CHILDSAFE Mode 3 Operating This function helps to prevent you from being surprised when you turn on the unit in case that the volume of the unit is set at a high level.
Operating 33 Using Microphone VOICE CANCELLER 1. Connect your microphone to the MIC jack. You can reduce the vocal tones during music playback from various input sources. 2. Play the music you want. 3. Sing along with the accompaniment. Adjust the microphone volume by rotating MIC VOL. -/+ clockwise or counterclockwise on the unit. ,,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.
Operating KEY CHANGER VOCAL EFFECTS You can adjust the key to 9 steps (4 steps higher, 4 steps lower and the original key). When you connect your microphone to the MIC jack, you can enjoy karaoke function by changing voice in the various source. yy To sharp the key one by one, press the KEY CHANGER(L) repeatedly during playback. yy To flatten the key one by one, press the KEY CHANGER(l) repeatedly during playback. ,,Note yy This function is available CD, USB or BT (Bluetooth) Function.
Operating 35 ECHO LIGHTING When you connect your microphone to the MIC jack, you can give an echo effect to the sound from the microphones by pressing MIC ECHO. This function offers a party atmosphere by operating the lighting on the unit. ECHO 1 ECHO 2 ,,Note ECHO OFF yy If a microphone is not connected, “INSERT MIC ” appears in the display window. yy If you press VOCAL EFFECTS button on ECHO mode, after backing up current ECHO, turn off ECHO mode and operate VOCAL EFFECTS mode.
Operating Sleep Timer Setting Auto power down Press SLEEP on the remote control repeatedly to select delay time between 10 and 180 minutes. After the delay time, the unit will be turned off. This unit will turn itself off to save electricity in the case were the main unit is not connected to an external device and is not used for 15 minutes. The unit will also turn itself off after six hours if the main unit has been connected to another device using the analog inputs.
Operating 37 AUTO POWER On Auto function change This unit automatically turns on by an input source : Bluetooth or LG TV. This unit recognizes input signals such as Bluetooth, LG TV and Portable and then changes to the suitable function automatically. When you turn on your TV connected to this unit, this unit recognizes the input signal and selects the suitable function. You can hear the sound from the unit.
Operating Setting the Clock 1. Turn the unit on. 2. Press and hold CLOCK on the remote control. 3. Select time mode by pressing C/V on the remote control. - AM 12:00 (for an AM and PM display) or 0:00 (for a 24 hour display) 4. Press SET on the remote control to confirm your selection. 5. Select the hours by pressing C/V on the remote control. 3 6. Press SET on the remote control. Operating 7. Select the minutes by pressing C/V on the remote control. 8. Press SET on the remote control.
Operating 39 LG Sound Sync You can control some functions of this unit by 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. Controllable function by LG TV’s remote control : Volume up/down, mute Refer to the TV’s instruction manual for the details of LG Sound Sync. 1. Turn on the unit by pressing 1. 3.
Operating WIRELESS PARTY LINK Connection The output sound of (MAIN) unit is expanded to (OTHER) unit. It is compatible with unit that supports WIRELESS PARTY LINK. The name of function about sound expansion between the compatible products wirelessly was changed to WIRELESS PARTY LINK. 3 Operating 1. Press 3 WIRELESS LINK on the unit. PARTY LINK MODE SELECT appears in the display window. 2. Press 3 WIRELESS LINK on the unit to select MAIN or OTHER. - unit : Selects MAIN. - unit : Selects OTHER.
Troubleshooting 41 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. yy The power cord is not plugged in.
Troubleshooting Problem Cause & Solution yy The remote control is too far from the unit. Operate the remote control within about 7 m (23 feet). The remote control does yy There is an obstacle in the path of the remote control and the unit. Remove the obstacle. not work properly. yy The batteries in the remote control are exhausted. Replace the batteries with new ones. No speaker light. yy Check the light effects by pressing LIGHTING (Page 35). yy Check whether your LG TV supports LG Sound Sync.
Appendix 43 General specifications General Power requirements Refer to the main label on the unit. Power consumption Refer to the main label on the unit. Approx. 330.0 mm x 716.0 mm x 318.0 mm (13.0 inch x 28.2 inch x 12.5 inch) 5 °C to 35 °C (41 °F to 95 °F) 60 % Dimensions (W x H x D) Operating temperature Operating humidity Inputs Analog audio in (AUX IN) 2.0 Vrms (1 kHz, 0 dB), 600 Ω, RCA jack (L, R) x 1 Portable in (PORT. IN) 1.0 Vrms (3.
Appendix Trademarks and licenses 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.
Appendix 45 Maintenance Handling the Unit When shipping the unit Notes on Discs Handling Discs Never stick paper or tape on the disc. Storing Discs 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 After playing, store the disc in its case.
