LG 300W Model SH 4 Sound Bar System Manual

The LG 300W Model SH 4 Sound Bar System is a high-performance audio solution featuring 300W total power output, 4.1 channel surround sound, Bluetooth connectivity, HDMI ARC, optical input, USB playback, wireless subwoofer, multiple sound modes (Standard, Cinema, Music, Game), remote control, wall-mount capability, and LED display. Powered by 100-240V AC, 50/60Hz. 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. Bluetooth & USB Playback 8. Sound Modes & Equalizer 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Sound Bar Main Unit, Wireless Subwoofer, Remote Control, Power Cables, Wall Mount Kit, Optical Cable.

Feature	Description
Power Output	300W Total (Sound Bar: 200W, Subwoofer: 100W)
Bluetooth	Wireless audio streaming from compatible devices
HDMI ARC	Audio Return Channel for TV connection
Optical Input	Digital audio connection for TV and media players
USB Port	Playback of MP3, WMA audio files
Sound Modes	Standard, Cinema, Music, Game presets
Wireless Subwoofer	Automatic pairing, no cables required
LED Display	Shows input source, volume, settings
Wall Mount	Included brackets for wall installation
Remote Control	Full function remote with batteries included

Installation

Unpack and inspect all components. Choose placement location.

Place sound bar: Below TV or wall mount using included brackets.
Position subwoofer: Place within 10 meters 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; do not block vents. Keep away from heat sources.

First-Time Setup

Power on system; follow automatic pairing process.

Automatic subwoofer pairing: Power on both units; they will automatically connect.
Select input source: Press INPUT button to cycle through options (TV, BT, USB, OPT).
Connect Bluetooth: Put in pairing mode, search for "LG SH4" on your device.
Adjust sound settings: Use SOUND MODE button to select preferred audio profile.

CAUTION! Ensure stable placement; secure wall mounts properly.

Specifications

Total Power: 300W RMS
Channels: 4.1 Channel (Front L/R, Center, Surround, Subwoofer)
Connectivity: Bluetooth 4.2, HDMI ARC, Optical, USB, AUX
Sound Modes: Standard, Cinema, Music, Game
Frequency Response: 40Hz - 20kHz
Subwoofer: Wireless, 100W, 6.5" driver
Dimensions: Sound Bar: 900mm, Subwoofer: 200x350x350mm
Power Supply: 100-240V AC, 50/60Hz
Weight: Sound Bar: 3.2kg, Subwoofer: 5.8kg

Controls and Settings

Front Panel: POWER, INPUT, VOLUME, SOUND MODE, Bluetooth Pairing. Remote Control: POWER, INPUT SELECT, VOLUME, MUTE, SOUND MODE, BASS, TREBLE, SUBWOOFER LEVEL.

Sound Settings: Sound Mode selection, Bass/Treble adjustment, Subwoofer level control. Input Selection: TV, Bluetooth, USB, Optical. Display: LED shows current input, volume level, settings mode.

Connecting Devices

TV Connection: HDMI ARC (recommended) or Optical cable. Bluetooth: Wireless pairing. USB: Direct playback from flash drives.

Turn off all devices before connecting cables.
HDMI ARC: Connect to TV's HDMI ARC port for automatic audio control.
Optical: Use included optical cable for digital audio connection.
Select corresponding input on sound bar after connection.

Tip: Use HDMI ARC for best audio synchronization with TV.

Bluetooth & USB Playback

Supports wireless streaming and USB media playback.

Bluetooth pairing: Press and hold BT button until LED flashes, then search on device.
USB playback: Insert USB drive with MP3/WMA files, select USB input.
Playback controls: Use remote for play/pause, track skip, volume.
Multiple devices: Can store up to 5 paired Bluetooth devices.

WARNING! Ensure USB drive is properly formatted (FAT32). Do not remove during playback.

Sound Modes & Equalizer

Four preset sound modes optimized for different content types.

Standard: Balanced sound for general TV viewing
Cinema: Enhanced surround for movies and films
Music: Optimized for music playback with wider soundstage
Game: Enhanced dynamics for gaming content

Manual EQ: Adjust Bass (-6 to +6), Treble (-6 to +6), Subwoofer Level (0-10).

Care & Cleaning

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

CAUTION! Avoid moisture; keep vents clear of dust buildup.

Regulatory Information

FCC Part 15: Class B digital device compliant. CE, RoHS certified. Copyright © 2023 LG Electronics. For support, visit www.lg.com or contact 1-800-243-0000. Bluetooth® word mark and logos are registered trademarks.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound from subwoofer	Power/wireless connection	Check power; ensure within range; reset pairing
Bluetooth not connecting	Pairing mode/distance	Enter pairing mode; move closer; remove obstacles
HDMI ARC not working	TV settings/cable	Enable ARC in TV settings; check cable connection
USB not recognized	Format/files	Ensure FAT32 format; supported file types only
Sound distortion	Volume/settings	Reduce volume; check sound mode; reset EQ

Reset: Hold POWER + VOLUME DOWN for 10 seconds to factory reset.

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