Kenwood KDC X990 Manual

The Kenwood KDC X990 is a high-performance car audio receiver featuring advanced digital signal processing, Bluetooth connectivity, USB input, CD playback, AM/FM tuner, customizable sound settings, and compatibility with various audio formats. Below are key sections for features, installation, operation, settings, and troubleshooting.

1. Features at a Glance 2. Installation 3. Basic Operation 4. Specifications 5. Controls and Settings 6. Bluetooth Connectivity 7. USB and External Devices 8. Audio Settings 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Digital media receiver, Remote Control, Front USB port, Bluetooth connectivity, CD player, AM/FM tuner, Audio inputs/outputs.

Feature	Description
Bluetooth	Wireless audio streaming and hands-free calling
USB Input	For connecting USB devices and charging
CD Player	Plays CD, CD-R, CD-RW formats
AM/FM Tuner	Preset stations with RDS capability
Audio Inputs	RCA inputs for external audio sources
Audio Outputs	Preamp outputs for amplifiers
EQ Settings	Customizable equalizer with presets
Display	Customizable color display
Remote Control	Full function remote included
Power Output	50W x 4 channels maximum

Installation

Proper installation ensures optimal performance and safety.

Disconnect vehicle battery negative terminal before installation.
Remove factory radio using appropriate tools.
Connect wiring harness following color-coded wiring diagram.
Connect antenna cable and all input/output cables.
Secure unit in dashboard and test all functions.
Reconnect vehicle battery.

WARNING! Always disconnect vehicle battery before installation to prevent electrical shorts.

Basic Operation

Power on unit; follow initial setup procedures.

Source Selection: Press SOURCE button to cycle through available sources.
Volume Control: Use volume knob or remote control to adjust volume.
Mode Selection: Select between radio, CD, USB, or Bluetooth modes.
Display Settings: Adjust display brightness and color in settings menu.
Audio Settings: Access EQ, balance, and fader controls.

CAUTION! Operate vehicle controls only when safe to do so.

Specifications

Power Output: 50W x 4 (Max), 22W x 4 (RMS)
CD Formats: CD, CD-R, CD-RW, MP3, WMA
USB Support: MP3, WMA, AAC playback
Bluetooth: Version 3.0+EDR, A2DP, AVRCP
Tuner: FM/AM with 24 presets (18FM/6AM)
Frequency Response: 10Hz - 20kHz
Signal-to-Noise: 95dB (CD)
Operating Voltage: 14.4V DC (11-16V allowable)
Dimensions: DIN size (178mm x 50mm)

Controls and Settings

Front Panel Controls: Power/Volume knob, Source button, Eject, Function button.

Remote Control: Power, Volume, Source, Preset, Track selection, Menu navigation.

Audio Settings: Bass, Treble, Balance, Fader, Loudness, EQ presets (Pop, Rock, Jazz, etc.). System Settings: Display color, Dimmer, Clock, Bluetooth pairing, Security code. Radio Settings: Preset memory, Auto store, Local/DX reception.

Bluetooth Connectivity

Pair mobile devices for hands-free operation and audio streaming.

Enable Bluetooth on mobile device.
Press SOURCE to select Bluetooth mode.
Enter pairing mode from settings menu.
Select "KDC-X990" from device list on mobile.
Enter PIN if required (default: 0000).
Confirm pairing on both devices.

Tip: Keep mobile device within 3 feet for optimal Bluetooth performance.

USB and External Devices

Supports USB drives and various audio devices.

Connect USB device to front USB port.
Select USB as source; unit will read compatible files.
Navigate folders using folder up/down buttons.
Play/pause with center button; skip tracks with arrow buttons.
For iPods, use compatible interface cable.
Charging available for connected devices.

WARNING! Do not remove USB device during playback to prevent data corruption.

Audio Settings

Customize sound to match vehicle acoustics and personal preference.

Equalizer: 13-band graphic EQ with multiple presets. Crossover: High-pass/low-pass filters. Time Alignment: Adjust speaker delay for optimal staging. Loudness: Bass boost at low volumes. Subwoofer Control: Independent subwoofer level adjustment.

Care & Maintenance

Keep unit clean and protected from extreme conditions.

Use soft, dry cloth for cleaning display and controls. Avoid chemical cleaners. Protect from direct sunlight and moisture. Keep ventilation areas clear. Regular CD lens cleaning recommended.

CAUTION! Do not use abrasive materials or liquids on display surface.

Regulatory Information

FCC Part 15: Class B digital device compliant. CE marked for European compliance. Bluetooth qualified design. Copyright © Kenwood Corporation. For support, visit www.kenwood.com or contact authorized service centers.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Wiring/connections	Check fuse, wiring connections, and ground.
No sound	Settings/speakers	Check volume, mute, speaker connections.
Bluetooth not connecting	Pairing/range	Delete old pairing; re-pair; check device distance.
CD not playing	Disc/player	Check disc format; clean disc; try different CD.
USB not recognized	Format/compatibility	Use FAT32 format; check file compatibility.
Poor radio reception	Antenna/location	Check antenna connection; adjust location.

Reset: Hold reset button for 3 seconds to restore factory settings.

Service: Contact authorized Kenwood service center for repairs.