LG HT904TA Manual

The LG HT904TA is a high-performance home theater system featuring a 5.1 channel surround sound setup, DVD player, USB connectivity, FM radio tuner, and multiple audio/video inputs. It supports various disc formats including DVD-Video, DVD±R/RW, CD, MP3 CD, and DivX playback. The system includes a main receiver unit, five satellite speakers, a powered subwoofer, remote control, and necessary cables for setup. Below are key sections covering safety, features, installation, operation, and troubleshooting.

Features at a Glance

Key components: Main receiver unit with integrated DVD player, Remote Control, Five satellite speakers, Powered subwoofer, FM antenna, USB port, AV input/output jacks.

Feature	Description
DVD Player	Plays DVD, CD, MP3, DivX formats
Audio Output	5.1 channel surround sound (1000W total power)
USB Port	For playing media files from USB storage devices
FM Radio Tuner	Preset memory for 30 stations
Audio Inputs	Optical digital input, analog stereo inputs
Video Outputs	Component video, composite video, HDMI output
Speaker Terminals	Color-coded for easy speaker connection
Remote Control	Full function control of all system features
Display Panel	Front panel display with status indicators
Power Supply	AC 120V, 60Hz operation

Installation

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

1. Connect speakers: Match color-coded wires to corresponding terminals (Front L/R, Center, Surround L/R).
2. Connect subwoofer: Use provided cable to SUBWOOFER OUT on main unit.
3. Connect TV: Use HDMI or component/composite video cables to video output on main unit.
4. Connect external devices: Use optical/analog inputs for audio sources.
5. Connect FM antenna: Attach to ANTENNA terminal for radio reception.
6. Plug into AC power outlet.

WARNING! Ensure proper ventilation around main unit. Keep away from heat sources and moisture.

First-Time Setup

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

1. Set speaker configuration: Use TEST TONE to verify all speakers are working properly.
2. Configure audio settings: Select surround mode (Dolby Digital, DTS, Stereo).
3. Set up FM radio: Auto-scan for available stations and save presets.
4. Configure video output: Select appropriate resolution (480p, 720p, 1080i) based on TV capability.
5. Set clock and timer functions.

CAUTION! Do not connect speakers while system is powered on. Ensure all connections are secure before powering up.

Specifications

• Audio Power: 1000W total (Front: 170W x 2, Center: 170W, Surround: 170W x 2, Subwoofer: 150W)
• Disc Formats: DVD, DVD±R/RW, CD, CD-R/RW, MP3, DivX, JPEG
• Audio Decoding: Dolby Digital, DTS, Dolby Pro Logic II
• Frequency Response: 20Hz - 20kHz
• Signal-to-Noise Ratio: 95dB
• Inputs: Optical digital, analog stereo, USB
• Outputs: HDMI, component video, composite video, subwoofer
• Radio: FM tuner (87.5-108MHz) with 30 presets
• Power Consumption: 110W (operation), 0.5W (standby)
• Dimensions: Main unit: 16.5" x 3.9" x 13.8", Subwoofer: 8.7" x 15.4" x 13.8"

Controls and Settings

Front Panel: POWER, OPEN/CLOSE, USB port, Display, FUNCTION selector.

Remote: POWER, Numeric buttons, OPEN/CLOSE, FUNCTION, VOLUME, MUTE, MENU, NAVIGATION arrows, ENTER, AUDIO mode, SUBTITLE, ANGLE, REPEAT, ZOOM.

Audio Settings: Surround mode (Dolby Digital, DTS, Stereo), Equalizer (Rock, Pop, Jazz, Classic, Flat), Speaker level adjustment, Bass/Treble control. Video Settings: Output resolution, TV aspect ratio (16:9, 4:3), Screen saver. System Settings: Language, Clock, Timer, Parental lock (default password 0000).

Connecting Devices

TV: HDMI or component/composite video. External audio: Optical digital or analog stereo. USB: Front panel port.

1. Turn off all devices before making connections.
2. Use high-quality cables for best performance.
3. Select input source using FUNCTION button (DVD, USB, AUX, FM).
4. For HDMI connection, ensure TV is set to correct input source.

Tip: For optimal surround sound, position speakers at ear level when seated.

Playing Media

Supports DVD-Video, audio CDs, MP3 files, DivX video, JPEG photos.

1. Insert disc: Press OPEN/CLOSE, place disc label side up.
2. Select source: Press FUNCTION to select DVD or USB mode.
3. Navigation: Use arrow keys to browse files/folders on USB devices.
4. Playback control: PLAY, PAUSE, STOP, SKIP forward/backward.
5. Repeat: Press REPEAT for track/chapter/all repeat modes.
6. Zoom: Press ZOOM during video playback (2x, 4x).
7. Audio track selection: Use AUDIO button for multi-language tracks.
8. Subtitle selection: Use SUBTITLE button for different languages.

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

Audio Features

Surround Modes: Dolby Digital, DTS, Dolby Pro Logic II, Stereo. Sound Effects: Virtual Surround, Night Mode, Dialogue Enhancement. Equalizer Presets: Rock, Pop, Jazz, Classic, Flat. Speaker Test: Automatic test tone for speaker calibration.

Care & Cleaning

Unplug from power before cleaning. Use soft, dry cloth for exterior surfaces. For stubborn stains, use mild detergent on damp cloth (not directly on unit).

CAUTION! Never use abrasive cleaners, solvents, or spray directly on unit. Keep ventilation openings clear of dust.

Regulatory Information

FCC Part 15: Class B digital device compliant. This device complies with Part 15 of the FCC Rules. Copyright © LG Electronics Inc. All rights reserved. Dolby and Dolby Digital are trademarks of Dolby Laboratories. DTS and DTS Digital Surround are trademarks of DTS, Inc. 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 cord connection; ensure outlet is working.
No sound from speakers	Speaker wires loose	Check all speaker connections; ensure proper polarity.
Disc not playing	Disc dirty/wrong format	Clean disc; check format compatibility.
Remote not working	Batteries/obstruction	Replace batteries; ensure clear line of sight to sensor.
No video output	Wrong input selected	Check TV input source; verify cable connections.
FM radio poor reception	Antenna position	Extend FM antenna fully; reposition for better reception.
USB device not recognized	Format incompatible	Use FAT32 formatted devices; check file compatibility.
Overheating	Insufficient ventilation	Ensure adequate space around unit; clean ventilation openings.

Reset: Press and hold STOP button on main unit for 5 seconds to reset system settings.

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