Kenwood KDC BT40U Manual

The Kenwood KDC BT40U is a single-DIN car stereo with Bluetooth connectivity, USB input, auxiliary input, CD playback, AM/FM radio, and 50W x 4 maximum power output. Features include hands-free calling, audio streaming, customizable EQ settings, and compatibility with various audio formats. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: Main unit with detachable faceplate, Remote Control, Wiring harness, USB port, Auxiliary input, Bluetooth antenna.

Feature	Description
Bluetooth connectivity	For hands-free calling and audio streaming
USB port	For connecting USB devices and charging
Auxiliary input	For external audio devices
CD playback	Supports CD, CD-R, CD-RW formats
AM/FM tuner	With preset stations and RDS
Power output	50W x 4 maximum power
Detachable faceplate	Security feature to prevent theft
EQ settings	Customizable sound profiles
Remote control	For convenient operation
Illumination	Adjustable display colors

Installation

Unpack and inspect contents. Ensure proper wiring connections.

1. Disconnect vehicle battery: Remove negative terminal for safety.
2. Connect wiring harness: Match colors to vehicle wiring (red to ignition, yellow to battery, black to ground).
3. Mount unit: Slide into DIN slot and secure with mounting sleeve.
4. Connect antennas: Attach Bluetooth and radio antennas.
5. Reconnect battery and test unit.

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

First-Time Setup

Power on unit; follow initial setup prompts.

1. Set clock: Press SOURCE to enter settings, adjust time.
2. Pair Bluetooth: Enable pairing mode, search from phone, enter PIN 0000.
3. Program radio stations: Tune to desired stations, press and hold preset buttons.
4. Adjust audio settings: Use EQ to customize sound profile.
5. Set illumination: Choose display color in settings menu.

CAUTION! Do not operate while driving. Park vehicle for initial setup.

Specifications

• Power Output: 50W x 4 (Max), 22W x 4 (RMS)
• Audio Formats: MP3, WMA, AAC
• CD Compatibility: CD, CD-R, CD-RW
• Bluetooth Version: 2.1 + EDR
• USB Support: Up to 32GB FAT32
• Tuner Sensitivity: FM 10.8 dBf, AM 27 dBμ
• Inputs: USB, Auxiliary, Microphone
• Outputs: Front/Rear/Subwoofer pre-outs
• Power Supply: 14.4V DC (11-16V allowable)
• Dimensions: 178mm(W) x 50mm(H) x 153mm(D)

Controls and Settings

Access menus via FUNCTION button. Front Panel: POWER/VOLUME knob, SOURCE, BAND, TUNE/TRACK buttons.

Remote: POWER, VOLUME, SOURCE, MUTE, PRESET, BAND, TUNE, PLAY/PAUSE.

Audio Settings: BASS, MIDDLE, TREBLE, BALANCE, FADER, LOUDNESS, SUBWOOFER control. System Settings: CLOCK, DISPLAY (illumination color), BEEP, DIMMER, LANGUAGE. Bluetooth: PAIRING, PHONEBOOK, CALL HISTORY. Radio: PRESET stations, SEEK, LOCAL/DX.

Connecting Devices

USB: Front/rear port for flash drives. Auxiliary: 3.5mm jack for external audio. Bluetooth: Wireless connection for phones/audio.

1. Turn off unit before connecting wired devices.
2. Insert USB device fully into port.
3. Connect auxiliary cable securely.
4. For Bluetooth, ensure device is in pairing mode.
5. Select source via SOURCE button (USB, BT, AUX, CD, TUNER).

Tip: Format USB devices to FAT32 for best compatibility.

Playing Media

Supports CD, USB, Bluetooth, and auxiliary sources.

1. Insert CD: Press eject button, load disc label-up.
2. Play: Press PLAY; skip tracks with TUNE/TRACK buttons.
3. USB playback: Insert device, auto-plays or press SOURCE to select USB.
4. Folder navigation: Use TUNE knob to browse folders/files.
5. Repeat/shuffle: Press RPT or RDM during playback.
6. Fast forward/rewind: Press and hold TUNE buttons.
7. Pause: Press PLAY/PAUSE to temporarily stop playback.
8. Eject: Press eject button to remove CD.

WARNING! Do not use damaged discs. Keep USB ports clean and dry.

Bluetooth Features

Hands-free calling: Answer/end calls with phone button. Audio streaming: Play music from Bluetooth devices. Phonebook access: Download contacts to unit.

1. Pairing: Enter pairing mode (hold BT button), search from phone, enter PIN 0000.
2. Call functions: Answer with phone button, end with same button.
3. Audio streaming: Select BT AUDIO source, control playback from unit or device.
4. Phonebook: Download contacts after successful pairing.

Note: Maximum of 5 paired devices stored in memory.

Care & Maintenance

Clean with dry, soft cloth only. Do not use chemicals or abrasives.

Detachable faceplate: Store in protective case when not in use.

CAUTION! Do not expose to extreme temperatures or moisture. Keep discs and USB ports clean.

Regulatory Information

FCC Part 15: Class B digital device compliant. Bluetooth qualified device. Copyright © Kenwood Corporation. For support, visit www.kenwood.com or contact authorized service centers. This device complies with part 15 of FCC Rules.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Wiring/fuse	Check battery and ignition connections; replace fuse if blown.
Bluetooth not connecting	Pairing mode/distance	Ensure unit in pairing mode; move device closer; delete old pairings.
USB not recognized	Format/capacity	Reformat to FAT32; use device under 32GB; check for damage.
No sound	Mute/settings	Check mute function; verify audio settings; test different sources.
CD not playing	Disc/format	Clean disc; ensure compatible format; check for scratches.
Poor radio reception	Antenna/connection	Ensure antenna connected properly; check antenna cable.

Reset: Press reset button on faceplate or disconnect battery for 30 seconds.

Service: Contact authorized Kenwood service center; www.kenwood.com