LG Electronics SH4 2.1 Channel 300W Sound Bar Manual

The LG Electronics SH4 is a 2.1 channel sound bar system delivering 300W total power output, featuring wireless subwoofer, Bluetooth connectivity, multiple audio modes, HDMI ARC, optical input, USB playback, remote control, wall-mount capability, and various sound enhancement technologies. 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. Bluetooth Connectivity 8. Sound Modes 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Sound bar unit, Wireless subwoofer, Remote control, Power cables, Wall-mount kit, Optical cable.

Feature	Description
Total Power Output	300W (Sound bar: 200W, Subwoofer: 100W)
Channels	2.1 Channel System
Bluetooth	Wireless audio streaming
HDMI ARC	Audio Return Channel for TV connection
Optical Input	Digital audio connection
USB Port	For media playback
Wireless Subwoofer	Automatic pairing, no cables needed
Sound Modes	Standard, Music, Cinema, Sports, Game
Wall Mountable	Includes mounting template and hardware
Remote Control	Full function remote included

Installation

Unpack and inspect all components. Choose placement location.

Place sound bar: Below TV or wall-mounted using included hardware.
Position subwoofer: Place within 30 feet of sound bar for wireless connection.
Connect to TV: Use HDMI ARC or optical cable for best audio quality.
Connect power: Plug both sound bar and subwoofer into AC outlets.

WARNING! Ensure proper ventilation; keep away from heat sources and moisture.

First-Time Setup

Power on system; automatic subwoofer pairing should occur.

Auto pairing: Subwoofer should automatically connect to sound bar when powered on.
TV connection: Select HDMI ARC or optical input on TV audio settings.
Source selection: Use INPUT button to select correct audio source.
Sound calibration: Use Auto Sound Calibration for optimal audio performance.

CAUTION! Do not block ventilation openings; allow proper air circulation.

Specifications

Total Power: 300W RMS
Channels: 2.1 (Left, Right, Subwoofer)
Connectivity: Bluetooth, HDMI ARC, Optical, USB
Frequency Response: 40Hz - 20kHz
Bluetooth Version: 4.2
Supported Codecs: SBC, AAC
Dimensions (Sound Bar): 35.4" W x 2.4" H x 3.7" D
Power Supply: 120V AC, 60Hz
Weight: Sound bar: 4.4 lbs, Subwoofer: 10.1 lbs

Controls and Settings

Front panel controls: POWER, INPUT, VOLUME, Bluetooth pairing. Remote control: POWER, INPUT, VOLUME, MUTE, SOUND MODE, BASS, TREBLE, NIGHT MODE.

Sound Settings: Sound Mode (Standard, Music, Cinema, Sports, Game), Bass Level, Treble Level, Night Mode, Auto Volume. Connection Settings: Bluetooth pairing, Input selection (HDMI, Optical, Bluetooth, USB). System Settings: Factory reset, Standby mode, LED indicator.

Connecting Devices

HDMI ARC: Connect to TV's HDMI ARC port. Optical: Digital optical cable to TV. Bluetooth: Wireless pairing. USB: Media playback.

Turn off all devices before connecting cables.
HDMI ARC: Use high-speed HDMI cable for best performance.
Optical: Remove protective caps from optical connectors.
Select input source using INPUT button on remote.

Tip: For best audio quality, use HDMI ARC connection when available.

Bluetooth Connectivity

Wireless audio streaming from compatible devices.

Pairing mode: Press and hold Bluetooth button until indicator flashes.
Device search: On your Bluetooth device, search for "LG SH4".
Connect: Select "LG SH4" from available devices list.
Play audio: Start playback on your Bluetooth device.
Disconnect: Turn off Bluetooth or move out of range.

WARNING! Keep Bluetooth devices within 33 feet range for stable connection.

Sound Modes

Optimize audio for different content types.

Standard: Balanced sound for general TV viewing
Music: Enhanced clarity for music playback
Cinema: Surround sound experience for movies
Sports: Enhanced dialogue and crowd effects
Game: Optimized for gaming audio effects
Night Mode: Reduces loud sounds for late-night viewing
Auto Volume: Maintains consistent volume levels

Care & Cleaning

Unplug before cleaning. Use soft, dry cloth. Do not use liquids or chemical cleaners.

CAUTION! Do not spray liquids directly on unit. Avoid abrasive cleaners that may damage surfaces.

Regulatory Information

FCC Part 15: Class B digital device compliant. Bluetooth qualified device. Copyright © 2023 LG Electronics. For support, visit www.lg.com or contact 1-800-243-0000. Manufactured under license from Dolby Laboratories.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound	Input selection/volume	Check input source; increase volume; ensure mute is off.
Subwoofer not working	Power/pairing	Ensure subwoofer is powered; reset pairing by power cycling both units.
Bluetooth not connecting	Range/pairing mode	Move device closer; enter pairing mode; remove other paired devices.
HDMI ARC issues	TV settings/cable	Enable HDMI CEC on TV; try different HDMI cable; check TV audio output settings.
Distorted sound	Volume levels/source	Reduce volume; check audio source quality; try different sound mode.

Reset: Hold POWER and INPUT buttons for 5 seconds to factory reset.

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