LG Docking Speaker ND5520 Manual

The LG Docking Speaker ND5520 is a versatile audio system with iPod/iPhone docking capability, built-in CD player, FM radio tuner, auxiliary input, USB connectivity, and multiple sound enhancement features. With 2.1 channel sound output, bass reflex system, and various audio modes, it delivers high-quality audio performance. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Playing Media 8. Sound Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Main speaker unit with docking station, Remote Control, Auxiliary input, USB port, CD compartment, Power connector, Bass reflex port.

Feature	Description
iPod/iPhone Dock	Compatible docking station for Apple devices
CD Player	Plays audio CDs, CD-R/RW
FM Radio	Built-in FM tuner with preset stations
USB Port	For USB flash drives and device charging
Auxiliary Input	3.5mm jack for external audio sources
Bass Reflex System	Enhanced low-frequency response
Remote Control	Full function remote for all operations
Power Button	Turns system on/off
Volume Control	Adjusts audio output level
Mode Selection	Switches between dock, CD, radio, aux, USB

Installation

Unpack and inspect contents. Place on stable, level surface.

Position speaker: Choose location with adequate ventilation and stable surface.
Connect power: Plug AC adapter into power input and wall outlet.
Install docking adapter: Select appropriate dock adapter for your device.
Connect external devices: Use auxiliary input for additional audio sources.

WARNING! Do not place near heat sources or in direct sunlight. Ensure proper ventilation around unit.

First-Time Setup

Power on speaker system; follow initial setup procedure.

Power connection: Connect to AC power and turn on main power switch.
Dock device: Place iPod/iPhone in dock with appropriate adapter.
Set FM radio: Auto-scan for available FM stations and save presets.
Configure sound: Adjust bass, treble, and sound modes to preference.
Test functions: Verify all modes (dock, CD, radio, aux) work properly.

CAUTION! Use only approved docking adapters. Do not force devices into dock.

Specifications

Audio Output: 2.1 Channel, 30W RMS total power
Frequency Response: 50Hz - 20kHz
Supported Formats: MP3, WMA, AAC (via USB/dock)
CD Compatibility: Audio CD, CD-R, CD-RW
FM Tuner: 87.5-108 MHz with 30 presets
Connectivity: iPod/iPhone dock, USB, Aux input
Power Supply: AC adapter, 100-240V, 50/60Hz
Dimensions: 300mm (W) x 200mm (H) x 180mm (D)
Weight: 2.5 kg

Controls and Settings

Front panel controls: POWER, MODE, VOLUME, PLAY/PAUSE, BASS/TREBLE adjustment.

Remote Control: POWER, MODE selection, PLAY/PAUSE, STOP, SKIP, VOLUME, MUTE, BASS/TREBLE, PRESET, REPEAT, RANDOM.

Sound Settings: BASS adjustment, TREBLE control, Sound modes (NORMAL, JAZZ, ROCK, CLASSIC). Radio: Auto tuning, Manual tuning, Preset memory (30 stations). System: Sleep timer, Display brightness, Reset function.

Connecting Devices

Multiple connectivity options for various audio sources.

iPod/iPhone: Use docking station with appropriate adapter
USB devices: Connect flash drives for music playback
Auxiliary input: Connect smartphones, tablets, or other audio players
CD playback: Insert audio CDs into CD compartment

Tip: Ensure devices are properly connected before selecting input mode.

Playing Media

Supports multiple media types and playback modes.

Dock mode: Place device in dock, select DOCK mode, control via remote
CD playback: Insert CD, close compartment, press PLAY
USB playback: Connect USB device, select USB mode, navigate files
FM radio: Select RADIO mode, tune stations, save presets
Auxiliary: Connect external device, select AUX mode
Playback controls: PLAY/PAUSE, STOP, SKIP, REPEAT, RANDOM
Sound adjustment: Use BASS/TREBLE controls and sound modes

WARNING! Do not move unit while CD is playing. Eject CDs properly.

Sound Features

Advanced audio processing for optimal sound quality.

Sound Modes: NORMAL (flat response), JAZZ (enhanced mids/highs), ROCK (boosted bass/mids), CLASSIC (balanced frequency). Bass Reflex System: Enhanced low-frequency performance. Digital Signal Processing: Optimizes audio for different content types.

Care & Cleaning

Unplug before cleaning. Use soft, dry cloth for exterior surfaces.

CAUTION! Do not use liquid cleaners or aerosols. Keep liquids away from unit. Clean docking connectors gently with dry cloth.

Regulatory Information

FCC Part 15: Class B digital device compliant. CE marked for European compliance. Copyright © 2025 LG Electronics Inc. All rights reserved. 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 connection	Check AC adapter connection; ensure power outlet works
No sound from dock	Device connection	Ensure proper docking; check device volume; try different adapter
CD not playing	Disc/compatibility	Check disc for damage; ensure compatible CD format
Poor radio reception	Antenna/position	Extend FM antenna; reposition unit for better reception
Remote not working	Batteries/obstacles	Replace batteries; ensure clear line of sight to IR sensor
USB not recognized	Format/compatibility	Use FAT32 formatted drives; check supported file formats

Reset: Disconnect power for 30 seconds, then reconnect.

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