Kenwood KDC MP728 Manual

The Kenwood KDC MP728 is a high-quality car stereo system featuring CD/MP3/WMA playback, built-in amplifier, detachable faceplate security, preset equalizer settings, radio tuner with 18FM/6AM presets, auxiliary input, and advanced audio controls. 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 Functions 6. Audio Settings 7. Radio Operation 8. CD/MP3 Playback 9. Security Features 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Main unit with detachable faceplate, remote control, wiring harness, mounting hardware, user manual.

Feature	Description
CD/MP3/WMA Playback	Supports multiple audio formats
Detachable Faceplate	Security feature to prevent theft
Built-in Amplifier	50W x 4 channel output
Radio Tuner	18FM/6AM preset stations
Auxiliary Input	For external audio devices
EQ Presets	Multiple sound profiles
LCD Display	Backlit for visibility
Volume Control	Rotary knob with push function
Source Selection	CD/Radio/AUX switching
Power Antenna Control	Automatic antenna activation

Installation

Proper installation ensures optimal performance and safety.

Disconnect vehicle battery negative terminal before installation.
Connect wiring harness following color-coded wires.
Mount unit securely in dashboard using supplied brackets.
Connect antenna cable and power antenna lead.
Reconnect battery and test all functions.

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

Basic Operation

Power on unit and familiarize yourself with basic controls.

Power: Press volume knob to turn unit on/off.
Source Selection: Press SOURCE button to cycle through CD/Radio/AUX.
Volume: Rotate knob to adjust volume level.
Mute: Press volume knob briefly to mute/unmute.
Display: Press DISP to change display information.

NOTE: Unit requires ignition power for operation when vehicle is running.

Specifications

Power Output: 50W x 4 (Max)
Frequency Response: 10Hz - 20kHz
Signal-to-Noise Ratio: >90dB
Preset Stations: 18FM/6AM
Supported Formats: CD, CD-R, CD-RW, MP3, WMA
Display: Multi-color LCD
Power Requirement: 12V DC, negative ground
Dimensions: DIN size (178mm x 50mm)

Controls and Functions

Front panel controls: Volume/Power knob, Eject button, Function buttons, Display button.

Remote Control: Power, Volume, Track selection, Source, Preset buttons.

Main Functions: SOURCE selection, BAND for radio band switching, SEEK for station tuning, DIM for display brightness, LOUD for bass enhancement, FAD/BAL for speaker balance.

Audio Settings

Access audio settings by pressing and holding AUDIO button.

Bass: Adjust low frequency response (-7 to +7)
Treble: Adjust high frequency response (-7 to +7)
Balance: Left/Right speaker balance
Fader: Front/Rear speaker balance
Loudness: Bass enhancement at low volumes
EQ Presets: FLAT, POP, ROCK, JAZZ, CLASSIC

Tip: Reset to factory settings by holding reset button for 3 seconds.

Radio Operation

Tuner functions for AM/FM reception.

Select Radio: Press SOURCE until RADIO displays.
Change Band: Press BAND to switch between FM1/FM2/FM3/AM.
Tune Stations: Press SEEK or manually tune with TUNE.
Store Presets: Tune to station, hold preset button for 2 seconds.
Recall Presets: Press numbered preset buttons.

Note: For best reception, ensure antenna is fully extended.

CD/MP3 Playback

Playback functions for CDs and MP3/WMA files.

Insert Disc: Press EJECT, load disc label side up.
Play: Disc begins playing automatically.
Track Selection: Use >>| and |<< buttons for next/previous.
Fast Forward/Rewind: Hold >>| or |<< buttons.
Repeat: Press RPT for track repeat.
Random: Press RDM for shuffle play.
MP3 Navigation: Use folder buttons for directory navigation.

WARNING! Do not use damaged or irregular shaped discs.

Security Features

Detachable faceplate: Press release button and slide faceplate off. Store in protective case when not in use.

Security Code: 4-digit code can be set to prevent unauthorized use. Code must be entered if power is disconnected.

Regulatory Information

FCC Part 15: Class B digital device compliant. CE marked for European compliance. Manufactured under ISO 9001 quality standards. For support, visit www.kenwood.com or contact customer service at 1-800-536-9663.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Wiring/ignition	Check power and ground connections; verify ignition wire
No sound	Speaker connections	Check speaker wires; verify fade/balance settings
CD won't play	Disc format/damage	Use compatible discs; clean disc surface
Poor radio reception	Antenna connection	Ensure antenna cable secure; check antenna condition
Unit won't turn on	Security code	Enter correct security code after power loss

Reset: Disconnect battery for 1 minute to reset unit.

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