LG DK578XB Manual

The LG DK578XB is a high-performance home theater system featuring a 5.1 channel surround sound setup, built-in DVD player, USB connectivity, FM radio tuner, Bluetooth compatibility, and multiple audio input options. Designed for immersive audio experiences, it supports various media formats and includes advanced sound enhancement technologies. Below are key sections covering safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: Main unit with DVD player, 5 satellite speakers, subwoofer, Remote Control, USB port, FM antenna, Audio input jacks, Optical digital input.

Feature	Description
DVD Player	Plays DVD, CD, MP3, and JPEG formats
Bluetooth	Wireless audio streaming from compatible devices
USB Port	For playing media files from USB storage devices
FM Radio Tuner	Preset memory for up to 30 stations
Optical Input	Digital audio connection for external sources
Audio Input Jacks	RCA inputs for auxiliary audio devices
5.1 Channel Output	Surround sound with dedicated subwoofer
Sound Modes	Multiple presets (Movie, Music, Game, etc.)
Remote Control	Full function remote with backlit buttons
Power Output	Total 1000W RMS power

Installation

Unpack and inspect all components. Place main unit on stable surface.

1. Connect speakers: Match colored wires to corresponding terminals on main unit and speakers.
2. Connect subwoofer: Use provided cable to connect to SUBWOOFER OUT port.
3. Connect audio sources: Use optical cable for digital audio; RCA cables for analog sources.
4. Connect FM antenna: Attach to FM ANTENNA terminal.
5. Plug into AC power outlet.

WARNING! System components are heavy; lift with care to avoid injury. Ensure all connections are secure before powering on.

First-Time Setup

Power on system; follow on-screen prompts if connected to display.

1. Speaker configuration: Run auto-calibration for optimal sound placement.
2. Set language: In SYSTEM menu, select preferred language (default ENGLISH).
3. Configure audio settings: Adjust speaker levels, distance, and crossover frequency.
4. Pair Bluetooth: Enable pairing mode and connect from your device.
5. Set FM presets: Auto-scan and save favorite radio stations.

CAUTION! Ensure proper ventilation around main unit; do not block cooling vents.

Specifications

• Audio Channels: 5.1 surround sound (Front L/R, Center, Surround L/R, Subwoofer).
• Total Power Output: 1000W RMS (Front: 150W x 2, Center: 150W, Surround: 150W x 2, Subwoofer: 250W).
• Supported Formats: DVD-Video, DVD±R/RW, CD, CD-R/RW, MP3, WMA, JPEG.
• Connectivity: USB 2.0, Bluetooth 4.2, Optical Digital Input, RCA Audio Input, FM Antenna.
• Sound Enhancement: Dolby Digital, DTS Decoder, Virtual Surround, Night Mode.
• Display: Front panel LED display with dimmer control.
• Power Source: 120V AC, 60Hz.
• Dimensions (Main Unit): 16.5" W x 4.3" H x 13.8" D.

Controls and Settings

Access menu via remote or front panel buttons. Front Panel: POWER, OPEN/CLOSE, SOURCE, VOLUME, MENU.

Remote: POWER, Numeric buttons, OPEN/CLOSE, SOURCE SELECT, VOLUME, MUTE, MENU, NAVIGATION arrows, ENTER, SOUND MODE, SUBTITLE, AUDIO.

Audio Settings: Speaker configuration (size, distance, level), Sound Mode (Movie, Music, Game, Standard), Equalizer (Bass, Treble, Balance), Night Mode, Dialogue Enhancer. System: Language, Bluetooth pairing, FM presets, Factory reset. DVD Setup: Parental control (default password 0000), Display format (16:9, 4:3), Subtitle language, Audio track selection.

Connecting Devices

TV Connection: Optical cable from TV to system. External Audio: RCA cables from devices to AUX IN. USB: Direct connection to front port.

1. Turn off system and devices before connecting.
2. Match cable types to appropriate ports (optical to optical, RCA to RCA).
3. Select input source via SOURCE button (DVD, AUX, OPTICAL, USB, BT).

Tip: For best audio quality, use optical connection for digital sources.

Playing DVD Media

Supports DVD-Video, audio CDs, and data discs with media files.

1. Insert disc: Press OPEN/CLOSE, load DVD/CD facing label up.
2. Play: Press PLAY; navigate menus with arrow buttons.
3. Stop: Press STOP; system remembers last position on most discs.
4. Skip: PREV/NEXT for chapters/tracks.
5. Search: Use LEFT/RIGHT arrows during playback.
6. Repeat: Press REPEAT to repeat chapter, track, or entire disc.
7. Zoom: Press ZOOM during DVD playback (2x, 4x).
8. Angle: Change viewing angle if available on DVD.

WARNING! Do not use damaged or irregular-shaped discs. Keep disc tray clean.

Accessibility Features

Audio Description: Enable in DVD menu if available. Parental Controls: Set rating restrictions in DVD setup menu (default password 0000). Subtitle Control: Select subtitle language and on/off during playback.

Care & Cleaning

Unplug system before cleaning. Use soft, dry cloth for exterior surfaces. For disc lens cleaning, use approved CD/DVD lens cleaner only.

CAUTION! Do not use liquid cleaners or aerosols. Avoid moisture near electrical components.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © LG Electronics Inc. Bluetooth® is a registered trademark of Bluetooth SIG, Inc. Dolby and DTS are trademarks of their respective owners. For support, visit www.lg.com or contact LG Customer Service at 1-800-243-0000.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound from speakers	Connection/volume	Check speaker wire connections; ensure volume not muted; verify source selection.
Bluetooth not connecting	Pairing mode/distance	Enable pairing mode on system; ensure device within 33 feet; remove obstacles.
Disc not reading	Disc format/damage	Ensure disc is compatible format; clean disc; check for scratches.
FM radio poor reception	Antenna placement	Extend FM antenna fully; reposition for better reception.
Remote not working	Batteries/obstruction	Replace batteries; point remote at IR sensor; remove obstacles.
Subwoofer no output	Connection/power	Check subwoofer cable connection; ensure subwoofer power is on.

Reset: Menu > System > Factory Reset to restore default settings.

Service: 1-800-243-0000; www.lg.com