LG HTR456 Manual

The LG HTR456 is a high-performance home theater receiver featuring Dolby Digital and DTS decoding, multiple audio/video inputs, HDMI switching, AM/FM tuner, multi-room audio capability, and easy setup wizard. It supports 5.1 channel surround sound, various sound modes (Movie, Music, Game), and includes a learning remote control. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: Main receiver unit, Remote Control, AM/FM antennas, Speaker terminals, HDMI inputs/outputs, Optical/Coaxial digital audio inputs, Multi-room audio outputs.

Feature	Description
HDMI Inputs (4 ports)	For connecting Blu-ray players, game consoles, streaming devices
HDMI Output (ARC)	Audio Return Channel to TV
Optical/Coaxial Inputs	For digital audio from TV or other sources
Speaker Terminals	For 5.1 channel speaker connections (Front, Center, Surround, Subwoofer)
AM/FM Antenna Terminals	For radio reception
Multi-room Audio Output	Zone 2 audio for second room
USB Port	For firmware updates and media playback
Network Port (Ethernet)	For wired network connection
Bluetooth	For wireless audio streaming from compatible devices
Setup Wizard	On-screen guided configuration

Installation

Unpack and inspect contents. Place in well-ventilated area.

1. Connect speakers: Match polarity (+/-) to corresponding terminals (Front L/R, Center, Surround L/R, Subwoofer).
2. Connect video sources: Use HDMI inputs for modern devices; component/composite for legacy equipment.
3. Connect TV: Use HDMI OUT (ARC) to TV's HDMI ARC input.
4. Connect antennas: Attach AM loop and FM wire antennas.
5. Plug into AC power.

WARNING! Ensure proper ventilation; do not block vents. Use appropriate speaker wire gauge.

First-Time Setup

Power on receiver; follow on-screen Setup Wizard.

1. Run Auto Speaker Setup: Connect included calibration microphone; follow prompts for distance and level calibration.
2. Configure inputs: Assign names to HDMI inputs (BD, Game, SAT, etc.).
3. Set network: Connect via Ethernet or configure Wi-Fi in network settings.
4. Update firmware: Check for updates in System menu.
5. Tune radio: Auto-scan for AM/FM stations.

CAUTION! Disconnect power before making speaker connections. Ensure all connections are secure.

Specifications

• Audio Power: 100W per channel (6 ohms, 1kHz, THD 10%).
• Audio Decoding: Dolby Digital, DTS, Dolby Pro Logic II.
• Sound Modes: Movie, Music, Game, Standard, Direct.
• Video: 4K/60p pass-through, HDR10, HLG support.
• Connectivity: 4 HDMI IN, 1 HDMI OUT (ARC), 2 Optical, 1 Coaxial, USB, Ethernet, Bluetooth.
• Tuner: AM/FM with 30 station presets.
• Multi-room: Zone 2 line output.
• Power Supply: 120V AC, 60Hz.
• Dimensions: 17.1" W × 6.2" H × 13.4" D.

Controls and Settings

Access menu via remote or front panel. Front Panel: POWER, INPUT SELECT, VOLUME, SOUND MODE, SETUP.

Remote: POWER, Numeric buttons, INPUT SELECT, VOLUME, MUTE, SOUND MODE, SETUP, NAVIGATION arrows, ENTER, RETURN, HOME.

Audio: Speaker configuration (size, distance, level), Sound modes (Movie, Music, Game), EQ adjustments (Bass, Treble, Balance). Video: Resolution output, HDMI control (Simplink). Network: Wi-Fi setup, firmware update, streaming services. System: Language (ENGLISH default), auto standby, reset options.

Connecting Devices

HDMI: Primary connection for video/audio. Optical/Coaxial: For audio from TV or older devices. Analog: RCA for legacy components.

1. Turn off receiver and devices before connecting.
2. Use high-speed HDMI cables for 4K/HDR content.
3. Select input via INPUT SELECT (HDMI1-4, OPT, COAX, TV).
4. Enable HDMI CEC (Simplink) for single remote control.

Tip: Label cables for easy identification. Use cable ties for organization.

Audio Setup & Modes

Optimize sound for different content types.

1. Auto Calibration: Use microphone for automatic speaker setup.
2. Manual adjustments: Fine-tune speaker levels and distances in menu.
3. Sound Modes: Select Movie for films, Music for stereo content, Game for gaming.
4. Night Mode: Compresses dynamic range for late-night viewing.
5. Dialog Enhancement: Boost center channel for clearer speech.
6. Bluetooth streaming: Pair device and select BT AUDIO input.
7. Multi-room: Configure Zone 2 for second room audio.

WARNING! Do not place calibration microphone near vibrating surfaces during setup.

Network & Smart Features

Network audio streaming, firmware updates, smart home integration.

Connect via Ethernet or Wi-Fi. Access streaming services (if supported). Use LG ThinQ app for control. Enable voice control with Google Assistant or Amazon Alexa. Set up automatic firmware updates.

Care & Maintenance

Unplug before cleaning. Use soft, dry cloth; avoid liquids. Keep vents clear of dust.

CAUTION! Do not use chemical cleaners. Ensure proper ventilation to prevent overheating.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. ICES-003: Complies with Canadian EMI regulations. Copyright © LG Electronics. For support, visit www.lg.com or contact 1-800-243-0000.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound from speakers	Wrong input/volume	Select correct input; increase volume; check speaker connections.
No video output	HDMI issue	Check HDMI cable; ensure TV input selected correctly; try different HDMI port.
Bluetooth not connecting	Pairing mode	Enable BT pairing on receiver; ensure device is in discoverable mode.
Network connection failed	Wi-Fi credentials	Re-enter password; check router settings; try wired connection.
Remote not working	Batteries/obstacles	Replace batteries; ensure line of sight to receiver IR sensor.
Overheating	Ventilation blocked	Ensure adequate space around receiver; clean vents.

Reset: Press and hold POWER on front panel for 10 seconds to factory reset.

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