LG HT904SA Manual

The LG HT904SA is a high-performance home theater system featuring a 5.1 channel surround sound setup, DVD player, USB connectivity, FM radio tuner, and compatibility with various audio formats. It includes a main receiver unit, five satellite speakers, one subwoofer, remote control, and necessary cables. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: Main receiver unit with integrated DVD player, Remote Control, Five satellite speakers, Subwoofer, USB port, FM antenna input, Audio/Video input and output jacks.

Feature	Description
DVD Player	Plays DVD-Video, DVD-R/RW, CD, MP3 CDs
USB Port	For playback of audio files from USB storage devices
FM Tuner	Built-in FM radio with preset stations
5.1 Channel Output	Dolby Digital and DTS decoding for surround sound
Audio Inputs	Optical and coaxial digital inputs, analog stereo inputs
Video Outputs	Composite and component video outputs
Remote Control	Full-function remote for system operation
Speaker Terminals	Color-coded terminals for easy speaker connection
Power	AC power input with voltage selector
Display	Front panel LED display for status information

Installation

Unpack and inspect all components. Place main unit on stable surface.

1. Connect speakers: Match colored wires to corresponding terminals (Front L/R, Center, Surround L/R, Subwoofer).
2. Position speakers: Place front speakers at ear level, surround speakers behind listening position, subwoofer on floor.
3. Connect video: Use composite or component cables to connect to TV.
4. Connect audio sources: Use optical/coaxial cables for digital audio from TV or other devices.
5. Plug into AC power.

WARNING! Ensure proper ventilation around main unit. Do not block ventilation openings.

First-Time Setup

Power on system; follow on-screen prompts if connected to TV.

1. Initial setup: Press SETUP on remote to access main menu.
2. Speaker configuration: Run auto calibration or manually set speaker distances and levels.
3. Input assignment: Assign audio inputs to corresponding video sources.
4. FM tuning: Auto-scan to find and store FM stations.
5. Language selection: Choose menu language (default ENGLISH).

CAUTION! Ensure all connections are secure before powering on.

Specifications

• Audio Output: 1000W total power (RMS)
• Audio Formats: Dolby Digital, DTS, MP3, WMA
• Video Formats: DVD, DivX, MPEG-4
• Connectivity: USB, Optical/Coaxial digital inputs, Analog audio inputs, Component/Composite video outputs
• FM Tuner: 87.5-108 MHz with 30 presets
• Speaker Configuration: 5 satellite speakers (80W each), 1 subwoofer (200W)
• Power Requirements: 120V AC, 60Hz
• Dimensions (Main Unit): 16.5" W × 3.9" H × 13.8" D
• Weight: 15.4 lbs (main unit)

Controls and Settings

Access menu via SETUP button on remote. Front Panel: POWER, OPEN/CLOSE, USB, FUNCTION, VOLUME.

Remote: POWER, Numeric buttons, OPEN/CLOSE, FUNCTION, VOLUME, MUTE, SETUP, NAVIGATION arrows, ENTER, AUDIO, SUBTITLE, ANGLE.

Audio Settings: Speaker levels, distance, crossover frequency, equalizer presets (MOVIE, MUSIC, SPORTS). Video Settings: TV type (4:3, 16:9), output resolution. System Settings: Language, parental lock (default 0000), factory reset. FM Settings: Auto/manual tuning, preset memory.

Connecting Devices

TV: Use component or composite video cables plus audio connection. External audio: Optical/coaxial from cable box, game console, etc. USB: Direct connection for media playback.

1. Turn off all devices before connecting.
2. Use high-quality cables for best performance.
3. Select input source via FUNCTION button (DVD, USB, AUX, FM).

Tip: Label cables for easy identification during setup.

Playing Media

Supports DVD, CD, USB media with various formats.

1. Insert disc: Press OPEN/CLOSE, load media label-side up.
2. USB playback: Insert USB device, select USB source.
3. Playback controls: PLAY, PAUSE, STOP, SKIP, SEARCH.
4. Repeat modes: Track, chapter, all, random.
5. Zoom: Adjust video zoom during DVD playback.
6. Subtitle/Audio: Select different subtitles or audio tracks.
7. Bookmark: Save favorite scenes for quick access.
8. Resume: Continue playback from last stopped point.

WARNING! Do not move system during disc playback. Allow discs to stop completely before ejecting.

Audio Settings

Sound Modes: MOVIE, MUSIC, SPORTS, NIGHT, STANDARD. Equalizer: Customizable 5-band EQ. Speaker Calibration: Auto calibration microphone included. Dynamic Range Control: Adjust for late-night viewing. Dialogue Enhancement: Boost center channel for clearer speech.

Care & Cleaning

Unplug before cleaning. Use soft, dry cloth for exterior. For stubborn stains, dampen cloth slightly with water. Clean lens with approved CD/DVD lens cleaner only.

CAUTION! Never use abrasive cleaners, solvents, or chemicals. Keep liquids away from electronic components.

Regulatory Information

FCC Part 15: Class B digital device compliant. UL listed for safety. Copyright © LG Electronics. For support, visit www.lg.com or contact LG Customer Service at 1-800-243-0000. This product incorporates copyright protection technology.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power cord, outlet	Check power connection; try different outlet; ensure power switch is on.
No sound from speakers	Connections, settings	Verify speaker wires are secure; check input selection; adjust volume.
Disc not playing	Disc type, condition	Ensure disc is compatible; check for scratches; clean if dirty.
Remote not working	Batteries, obstacles	Replace batteries; ensure line of sight to sensor; remove obstacles.
Poor FM reception	Antenna, location	Extend FM antenna fully; reposition for better reception.
USB not recognized	Format, capacity	Use FAT32 formatted drives; check if capacity is supported.
Overheating	Ventilation	Ensure adequate ventilation; clear vents of obstructions.

Reset: Menu > System > Factory Reset (note: erases all settings).

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