Kenwood KDC X789 Manual

The Kenwood KDC X789 is a high-performance car audio receiver featuring CD/MP3 playback, AM/FM tuner with 18FM/6AM presets, detachable faceplate security, 4-channel preamp outputs, built-in amplifier, variable color illumination, wireless remote control, and advanced audio controls. 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. Security Features 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Main unit with detachable faceplate, Wireless Remote Control, Wiring harness, Mounting sleeve, Installation hardware.

Feature	Description
CD/MP3 Playback	Plays audio CDs and MP3 encoded discs
AM/FM Tuner	18 FM and 6 AM station presets
Detachable Faceplate	Security feature to prevent theft
4-Channel Preamp Outputs	Front, rear, and subwoofer outputs
Built-in Amplifier	50W x 4 maximum power output
Variable Color Illumination	Adjustable display colors
Wireless Remote	Full function remote control
Audio Controls	Bass, treble, balance, fader, loudness
AUX Input	External audio source connection
Security Code	Theft deterrent system

Installation

Unpack and inspect contents. Prepare vehicle dashboard.

Disconnect vehicle battery: Remove negative terminal for safety.
Mount unit: Insert mounting sleeve into dashboard opening.
Connect wiring: Match wire colors to vehicle harness (red=ignition, yellow=battery, black=ground).
Connect speakers: Ensure proper polarity for each channel.
Connect antenna: Plug in vehicle antenna cable.
Test installation: Reconnect battery and test all functions.

WARNING! Disconnect battery before installation to prevent electrical shorts. Ensure all connections are secure.

First-Time Setup

Power on unit; follow initial setup procedures.

Set security code: Enter 4-digit code when prompted (default 0000).
Program radio stations: Use auto-scan or manual tuning to set presets.
Adjust audio settings: Set bass, treble, balance, and fader to preference.
Configure illumination: Select display color from available options.
Set clock: Adjust time display using setup menu.

CAUTION! Record security code in safe place. Unit will not operate without correct code.

Specifications

Power Output: 50W x 4 (max), 22W x 4 (RMS)
Tuner Sensitivity: FM 10.3 dBf, AM 25 μV
Frequency Response: 10Hz - 20kHz
Signal-to-Noise Ratio: 105 dB (CD)
Preamp Outputs: 4V front/rear/sub
Disc Compatibility: CD, CD-R, CD-RW, MP3
Power Requirement: 12V DC, negative ground
Dimensions: 7" W x 2" H x 6" D
Operating Temp: 32°F to 122°F (0°C to 50°C)

Controls and Settings

Access functions via front panel buttons or remote control. Front Panel: POWER, VOLUME, SOURCE, BAND, MENU, EJECT.

Remote: POWER, Numeric buttons, VOLUME, SOURCE, PRESET, MUTE, SEEK, PLAY/PAUSE.

Audio Settings: BASS, TREBLE, BALANCE, FADER, LOUDNESS, SUBWOOFER LEVEL. Tuner: AUTO SCAN, MANUAL TUNE, PRESET MEMORY. Display: DIMMER, COLOR SELECTION, CLOCK SETTING. Security: CODE ENTRY, ANTI-THEFT INDICATOR.

Connecting Devices

External audio sources: AUX input for portable devices. Amplifiers: Use preamp outputs for external amplification.

Turn off unit before connecting devices.
AUX connection: Use 3.5mm stereo cable to connect portable players.
Amplifier connection: Use RCA cables from preamp outputs to amplifier inputs.
Subwoofer: Connect to dedicated subwoofer output with level control.

Tip: Use high-quality cables for best audio performance.

Playing Media

Supports CD, CD-R, CD-RW, MP3 discs.

Insert disc: Press EJECT, load media label side up.
Play: Press PLAY; select tracks with numeric buttons or SEEK.
Pause: Press PLAY/PAUSE to temporarily stop playback.
Skip: PREV/NEXT for tracks.
Repeat: RPT button for track or disc repeat.
Random: RDM button for shuffle play.
MP3 Navigation: Use folder buttons to navigate directory structure.
Eject: Press EJECT to remove disc.

WARNING! Do not use damaged or cracked discs. Keep discs clean and free of scratches.

Security Features

Detachable Faceplate: Remove when parking to deter theft. Security Code: 4-digit code required for operation after power loss. Anti-Theft LED: Blinking red indicator shows security active.

Care & Maintenance

Clean faceplate with soft, dry cloth only. Avoid chemicals or abrasive cleaners. Store detachable faceplate in protective case when not in use.

CAUTION! Do not spray liquids on unit. Keep faceplate away from extreme temperatures.

Regulatory Information

Troubleshooting

Symptom	Possible Cause	Corrective Action
Unit won't power on	Power connection/security	Check fuse and wiring; enter security code if CODE appears.
No sound from speakers	Speaker connections	Verify speaker wires connected properly; check fader setting.
CD won't play	Disc format/damage	Ensure disc is compatible format; clean disc surface.
Poor radio reception	Antenna connection	Check antenna cable connection; ensure proper grounding.
Remote not working	Batteries/obstructions	Replace batteries; ensure clear line of sight to unit.

Reset: Disconnect battery for 10 minutes to reset unit.

Service: 1-800-536-9663; www.kenwood.com