LG HT904SA-A0P Manual

The LG HT904SA-A0P is a high-performance home theater system featuring a 5.1 channel surround sound setup, DVD player, AM/FM tuner, USB playback, and multiple connectivity options including HDMI, optical, and coaxial inputs. This manual provides comprehensive guidance on setup, operation, features, and troubleshooting for optimal audio-visual experience.

Features at a Glance

Key components: Main receiver unit, 5 satellite speakers, subwoofer, remote control, FM antenna, and connection cables.

Feature	Description
Audio Output	5.1 channel surround sound (1000W total power)
DVD Player	Plays DVD, DVD±R/RW, CD, CD-R/RW, MP3 CDs
Connectivity	HDMI (ARC), Optical Input, Coaxial Input, USB Port
Tuner	AM/FM with 30 station presets
Sound Modes	Cinema, Music, Game, Sports, Standard
Bluetooth	Wireless audio streaming from compatible devices
Remote Control	Full function remote with backlit buttons
Display	Front panel LED display with dimmer control
Auto Calibration	EZ Setup for automatic speaker configuration
Wall Mountable	Satellite speakers include wall mount brackets

Installation & Setup

Unpack all components carefully and verify contents. Place main unit on stable, well-ventilated surface.

1. Speaker Placement: Position front left/right, center, and rear left/right speakers according to room layout.
2. Subwoofer Placement: Place near front speakers, away from walls for optimal bass response.
3. Connect Speakers: Use color-coded speaker wires to connect each speaker to corresponding terminals.
4. Connect TV: Use HDMI cable from HDMI OUT (ARC) port to TV's HDMI ARC input.
5. Power Connection: Plug AC power cord into wall outlet last.

WARNING! System is heavy; use two people for lifting and positioning. Ensure proper ventilation around main unit.

First-Time Configuration

Power on system; follow on-screen setup wizard if connected via HDMI.

1. Auto Calibration: Press EZ SETUP button; system will test and optimize speaker levels.
2. Input Setup: Configure HDMI, optical, and coaxial inputs for connected devices.
3. Tuner Setup: Connect FM antenna; auto-scan for available stations.
4. Network Setup: Connect to home network for firmware updates and streaming services.
5. Sound Preferences: Select default sound mode (Cinema recommended).

CAUTION! Ensure all connections are secure before powering on. Keep speakers away from heat sources.

Specifications

• Audio Power: 1000W Total (Front: 170W x 2, Center: 170W, Rear: 170W x 2, Subwoofer: 250W)
• Supported Media: DVD, DVD±R/RW, CD, CD-R/RW, MP3, WMA, JPEG
• Connectivity: HDMI (ARC) x1, HDMI IN x2, Optical Input x1, Coaxial Input x1, USB 2.0
• Wireless: Bluetooth 4.2, Wi-Fi (for streaming services)
• Tuner Range: FM 87.5-108 MHz, AM 530-1710 kHz
• Speaker Impedance: 6 ohms
• Power Requirements: AC 120V, 60Hz, 180W
• Dimensions (Main Unit): 16.9" W x 3.9" H x 13.8" D
• Weight: 22 lbs (main unit)

Controls and Functions

Front Panel: POWER, OPEN/CLOSE, INPUT SELECT, VOLUME, SOUND MODE, USB PORT.

Remote Control: POWER, Numeric buttons, INPUT SELECT, VOLUME, MUTE, SOUND MODE, NAVIGATION arrows, ENTER, RETURN, SETUP, INFO, SUBTITLE, AUDIO.

On-Screen Menu: Setup (Speaker, Audio, Video, Network), Sound Mode (Cinema, Music, Game, Sports, Standard), Input Selection (HDMI, Optical, Coaxial, Bluetooth, USB), Tuner (Presets, Auto Scan), Media Playback (Repeat, Shuffle, Zoom).

Connecting External Devices

TV: HDMI ARC for audio return channel. Game Consoles: HDMI IN ports. Blu-ray Player: Optical or coaxial input. Streaming Devices: HDMI IN or Bluetooth.

1. Turn off all devices before making connections.
2. Use high-quality HDMI cables for best performance.
3. Select corresponding input on system (HDMI1, HDMI2, OPT, COAX, BT).
4. Configure audio output settings on source device to match system capabilities.

Tip: Label cables for easy identification. Use cable management to reduce clutter.

Playing Media

Supports DVD, CD, USB media, and Bluetooth streaming.

1. Insert Disc: Press OPEN/CLOSE, place disc label side up.
2. USB Playback: Insert USB drive; system auto-detects compatible files.
3. Bluetooth: Pair with device via Bluetooth menu; stream audio wirelessly.
4. Playback Controls: PLAY/PAUSE, STOP, SKIP, REPEAT, SHUFFLE.
5. Chapter/Track Selection: Use numeric buttons or navigation arrows.
6. Zoom: Press ZOOM during DVD playback (2x, 4x, 8x).
7. Subtitle/Audio: Change subtitle language or audio track during playback.
8. Photo Viewing: Display JPEG images from CD or USB with slideshow option.

WARNING! Do not move system during disc playback. Keep discs clean and free of scratches.

Sound Modes & Settings

Cinema: Optimized for movie watching with enhanced surround effects. Music: Balanced for music playback. Game: Enhanced positional audio for gaming. Sports: Clear dialogue with ambient crowd noise. Standard: Default setting for general use.

Advanced Settings: Speaker distance calibration, individual channel level adjustment, crossover frequency settings, dynamic range compression (Night Mode).

Maintenance & Care

Unplug system before cleaning. Use soft, dry cloth for exterior surfaces. Clean disc lens with approved cleaning disc only.

CAUTION! Do not use chemical cleaners or aerosols. Keep liquids away from all components. Ensure proper ventilation to prevent overheating.

Regulatory Information

FCC Part 15 Class B compliant. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Copyright © LG Electronics. All trademarks are property 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 power	Power cord not connected	Check power connection; ensure outlet is working
No sound from speakers	Speaker wires loose	Check all speaker connections; ensure proper polarity
HDMI no signal	Input selection incorrect	Select correct HDMI input; check cable connection
Disc not playing	Disc dirty/damaged	Clean disc; check for scratches; ensure correct region code
Bluetooth not connecting	Pairing mode not active	Enter Bluetooth pairing mode; ensure device is discoverable
Poor FM reception	Antenna not extended	Fully extend FM antenna; reposition for better reception
Overheating	Insufficient ventilation	Ensure 4-inch clearance on all sides of main unit

Factory Reset: Hold POWER button on main unit for 10 seconds while unplugged, then plug in while holding.

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