LG DVX641 Manual

The LG DVX641 is a versatile home theater system with DVD playback, CD/MP3 compatibility, AM/FM tuner, and multiple audio/video connectivity options. It features Dolby Digital and DTS decoding, virtual surround sound, progressive scan output, and a sleek design with front-panel controls. Below are key sections covering features, setup, operation, specifications, and troubleshooting.

Features at a Glance

Key components: Main unit with integrated DVD player, remote control, front-panel display, speaker terminals, and multiple input/output ports.

Feature	Description
DVD Playback	Supports DVD-Video, DVD-R/RW, DVD+R/RW
Audio Formats	CD, MP3, WMA playback capability
Audio Decoding	Dolby Digital, DTS, Dolby Pro Logic II
Video Output	Component, composite, S-Video with progressive scan
Tuner	AM/FM with 30 station presets
Connectivity	Optical digital input, auxiliary inputs, speaker outputs
Sound Modes	Virtual surround, music, movie, night modes
Display	Front-panel fluorescent display with dimmer control
Remote Control	Full-function remote with backlight
Power	AC 120V, 60Hz operation

Installation

Unpack all components carefully. Place main unit on stable, level surface.

1. Connect speakers: Match polarity (+/-) to speaker terminals.
2. Connect video output: Use component cables for best quality to TV.
3. Connect audio sources: Optical cable for digital audio from cable/satellite box.
4. Connect antenna: AM loop and FM wire antennas included.
5. Plug into AC power outlet.

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

First-Time Setup

Power on system; follow initial setup procedure.

1. Speaker setup: Run test tone to verify all speakers connected properly.
2. Input configuration: Assign digital inputs to appropriate sources.
3. Radio tuning: Auto-scan to store FM/AM stations.
4. Video settings: Set output type (progressive/interlace) based on TV capability.
5. Language: Select menu language (English default).

CAUTION! Keep unit away from heat sources and moisture.

Specifications

• Audio Power: 100W total (5 channels)
• Frequency Response: 20Hz - 20kHz
• Signal-to-Noise Ratio: 95dB
• Video Resolution: 480i/480p/720p/1080i compatible
• Disc Compatibility: DVD, CD, CD-R/RW, MP3, WMA
• Tuner Range: FM 87.5-108MHz, AM 530-1710kHz
• Inputs: Optical digital, auxiliary, AM/FM antenna
• Outputs: Component video, composite video, S-Video, speaker terminals
• Dimensions: 16.5" W × 3.9" H × 13.8" D
• Weight: 11.2 lbs

Controls and Settings

Front Panel: POWER, OPEN/CLOSE, PLAY/PAUSE, STOP, INPUT SELECT, VOLUME knob.

Remote: POWER, Numeric buttons, MENU, SETUP, AUDIO, SUBTITLE, ANGLE, ZOOM, REPEAT, A-B repeat.

Audio Settings: Bass, treble, balance, speaker distance, test tone, decoding mode (Dolby/DTS). Video Settings: Progressive scan on/off, TV type (4:3/16:9), output format. System Settings: Language, parental lock (default 0000), factory reset.

Connecting Devices

TV Connection: Component video (Y Pb Pr) for HD, composite for standard. Audio Sources: Optical digital for surround sound from external devices.

1. Turn off all devices before making connections.
2. Use high-quality cables for best performance.
3. Match colors on composite cables (yellow-video, red/white-audio).
4. Select input source using INPUT button on front panel or remote.

Tip: For surround sound, ensure digital audio output is enabled on source device.

Playing Media

Supports DVD, CD, MP3/WMA discs.

1. Insert disc: Press OPEN/CLOSE, place disc label-side up.
2. Playback: System automatically recognizes disc type and begins playback.
3. Navigation: Use arrow buttons for menu navigation, numeric buttons for direct track access.
4. Special functions: REPEAT (track/chapter/all), A-B repeat for segment looping.
5. Search: Use SKIP forward/backward or SCAN for fast forward/reverse.
6. Audio options: Change audio track or language during playback.
7. Subtitle: Select subtitle language or turn off.
8. Zoom: 2x, 4x zoom during video playback.

WARNING! Do not use damaged or irregularly shaped discs. Remove disc when not in use.

Audio Features

Sound Modes: VIRTUAL SURROUND for two-speaker setup, MOVIE for enhanced dialogue, MUSIC for stereo content, NIGHT for reduced dynamic range. Equalizer: Preset EQ curves (flat, pop, jazz, classic, rock). Speaker Setup: Individual channel level adjustment, distance calibration for proper timing.

Care & Maintenance

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

CAUTION! Never use abrasive cleaners, solvents, or spray directly on unit. Avoid magnetic fields near speakers.

Regulatory Information

FCC Part 15 Class B compliant. This device complies with part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. Copyright © LG Electronics Inc. All rights reserved. Dolby, Dolby Digital, Pro Logic are trademarks of Dolby Laboratories. DTS is a trademark of DTS, Inc. For support, visit www.lg.com or contact 1-800-243-0000.

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	Speaker wires, settings	Verify speaker connections; check mute; ensure correct input selected.
Disc won't play	Disc type, region code	Check disc compatibility; ensure region code matches; clean disc.
Remote not working	Batteries, obstacles	Replace batteries; point remote at sensor; remove obstacles.
Poor radio reception	Antenna placement	Extend FM antenna fully; reposition AM loop; avoid interference sources.
No video output	Cables, settings	Check video cable connections; verify TV input selection; check video output settings.

Reset: Hold STOP button for 5 seconds while powering on for factory reset.

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