LG 5.1 Surround Sound Manual

The LG 5.1 Surround Sound System is a high-performance audio solution featuring 5.1 channel configuration, Dolby Digital and DTS decoding, multiple input options including HDMI, optical, coaxial, and analog inputs, wireless connectivity, remote control, equalizer settings, speaker calibration, and various sound modes. Powered by 120V AC, 60Hz. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Audio Modes and Effects 8. Wireless Connectivity 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Main receiver unit, 5 satellite speakers, 1 subwoofer, Remote Control, HDMI inputs/outputs, optical/coaxial digital inputs, analog audio inputs, Bluetooth connectivity, speaker calibration microphone.

Feature	Description
HDMI Inputs	Multiple HDMI ports for 4K video pass-through
Optical/Coaxial Inputs	Digital audio connections for TV and media players
Bluetooth	Wireless streaming from compatible devices
Speaker Terminals	Color-coded connections for all speakers
AC Power Input	For main power connection
Calibration Microphone Port	For automatic speaker setup and room calibration
POWER	Turns system on/off
INPUT SELECT	Cycles through available input sources
VOLUME	Adjusts overall sound level
SOUND MODE	Selects different audio presets

Installation

Unpack and inspect all components. Position speakers according to 5.1 layout.

Connect speakers: Match colored wires to corresponding terminals (Front L/R, Center, Surround L/R, Subwoofer).
Connect audio sources: Use HDMI, optical, or coaxial cables from TV/media players.
Connect to TV: HDMI ARC port for audio return channel functionality.
Plug into AC power outlet.

WARNING! Ensure proper ventilation around receiver unit. Keep speakers away from moisture and heat sources.

First-Time Setup

Power on system; follow on-screen or audio prompts.

Automatic speaker calibration: Connect calibration microphone and run setup.
Input configuration: Assign inputs to specific sources (BD/DVD, TV, Game, etc.).
Sound mode selection: Choose preferred audio profile (Movie, Music, Game).
Bluetooth pairing: Enable pairing mode and connect mobile devices.

CAUTION! Do not place speakers near magnetic fields or electronic interference sources.

Specifications

Audio Channels: 5.1 (Front L/R, Center, Surround L/R, Subwoofer)
Total Power Output: 500W RMS
Supported Formats: Dolby Digital, DTS, Dolby TrueHD, DTS-HD Master Audio
Connectivity: HDMI (4 in/1 out), Optical, Coaxial, Analog, Bluetooth
Frequency Response: 20Hz - 20kHz
Signal-to-Noise Ratio: >100dB
Power Requirements: 120V AC, 60Hz
Operating Temperature: 41°F to 95°F (5°C to 35°C)

Controls and Settings

Access settings via front panel display or remote control. Front Panel: POWER, INPUT SELECT, VOLUME, SOUND MODE.

Remote: POWER, Numeric buttons, INPUT SELECT, VOLUME, MUTE, SOUND MODE, SETUP, TEST TONE, BLUETOOTH.

Audio Settings: Equalizer (Bass, Treble, Balance), Speaker Levels (individual channel adjustment), Delay Settings (distance calibration). Sound Modes: MOVIE, MUSIC, GAME, SPORTS, NIGHT. Setup: Input Assignment, Bluetooth Pairing, Factory Reset, Software Update.

Connecting Devices

HDMI: For modern devices with video/audio. Optical/Coaxial: For digital audio from TV/set-top boxes. Analog: For legacy devices.

Turn off all devices before making connections.
Use high-quality cables for optimal performance.
Select appropriate input source via INPUT SELECT button.
Enable HDMI-CEC for single remote control operation.

Tip: Use HDMI ARC for simplified TV audio connection and control.

Audio Modes and Effects

Multiple sound profiles optimized for different content types.

MOVIE Mode: Enhanced surround effects and dialogue clarity.
MUSIC Mode: Balanced stereo imaging with natural soundstage.
GAME Mode: Enhanced positional audio and dynamic range.
SPORTS Mode: Clear commentary and ambient crowd sounds.
NIGHT Mode: Compressed dynamic range for late-night viewing.
VIRTUAL Surround: Simulates 5.1 from stereo sources.
TEST TONE: For manual speaker level adjustment.

WARNING! Avoid excessive volume levels to prevent hearing damage and speaker damage.

Wireless Connectivity

Bluetooth pairing for wireless audio streaming from compatible devices.

Care & Cleaning

Unplug system before cleaning. Use soft, dry cloth for exterior surfaces. Clean speaker grilles with soft brush.

CAUTION! Do not use liquid cleaners or aerosols. Keep liquids away from electronic components.

Regulatory Information

FCC Part 15: Class B digital device compliant with residential interference limits. Copyright © 2025 LG Electronics; all trademarks property of LG Corp. For technical support, visit www.lg.com or contact 1-800-243-0000.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound from speakers	Input selection/volume	Check input source; ensure volume not muted; verify speaker connections.
Bluetooth not connecting	Pairing mode/distance	Enable pairing mode; move device closer; remove interference sources.
No HDMI audio	HDMI-CEC settings	Enable HDMI-CEC on TV and receiver; check HDMI cable quality.
Speaker distortion	Volume levels/wiring	Reduce volume; check speaker wire polarity; inspect for damage.
Subwoofer not working	Power/connection	Ensure subwoofer powered on; check cable connection; adjust crossover settings.

Reset: Hold POWER + INPUT SELECT for 10 seconds to factory reset.

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