free manual download kenwood bt312u

The Kenwood BT312U is a Bluetooth-enabled car stereo system featuring wireless audio streaming, hands-free calling, USB connectivity, AM/FM radio with preset stations, auxiliary input, remote control compatibility, and customizable audio settings. 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. Bluetooth Pairing 8. Audio Features 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Bluetooth receiver, USB port, AUX input, AM/FM tuner, LCD display, Remote Control compatibility.

Feature	Description
Bluetooth	Wireless audio streaming and hands-free calling
USB Port	For connecting USB devices and charging
AUX Input	3.5mm jack for external audio sources
AM/FM Radio	With 30 station presets (18 FM, 12 AM)
LCD Display	Shows track info, radio frequency, and settings
Remote Control	Optional remote for convenient operation
Power Output	50W x 4 channels maximum power
Audio Controls	Bass, treble, balance, fader adjustments
Phone Controls	Answer/end calls, reject calls, voice dialing
Power Source	12V DC vehicle electrical system

Installation

Professional installation recommended. Ensure vehicle is off during installation.

Disconnect negative battery terminal for safety.
Remove existing stereo following vehicle manufacturer guidelines.
Connect wiring harness: Match color-coded wires (red - ignition, yellow - battery, black - ground).
Connect antenna cable and test all functions before final mounting.
Secure unit in dashboard and reconnect battery.

WARNING! Incorrect installation may damage vehicle electrical system. Use appropriate fuse protection.

First-Time Setup

Power on unit; follow initial setup procedure.

Language selection: Choose preferred language in settings menu.
Bluetooth pairing: Enter pairing mode and connect mobile device.
Radio presets: Scan and save favorite AM/FM stations.
Audio settings: Adjust bass, treble, balance to preference.
Clock setting: Set correct time in display settings.

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

Specifications

Power Output: 50W x 4 (Max), 22W x 4 (RMS)
Bluetooth Version: 3.0+EDR
Frequency Response: 20Hz - 20kHz
Signal-to-Noise Ratio: >80dB
Preset Stations: 30 total (18 FM, 12 AM)
USB Support: MP3, WMA playback
Display: LCD with blue illumination
Power Requirement: 12V DC, negative ground
Dimensions: DIN size (178mm x 50mm)
Operating Temp: -20°C to +60°C

Controls and Settings

Front panel controls: POWER/VOLUME knob, SOURCE button, BAND button, Phone button, Menu/Setup button.

Remote Functions: Power, Volume, Track selection, Source change, Phone controls, Menu navigation.

Audio Settings: Bass (-10 to +10), Treble (-10 to +10), Balance (L9 to R9), Fader (F9 to R9). Radio Settings: Auto store, Manual tuning, Preset memory. Bluetooth Settings: Pairing, Phonebook access, Call history. System Settings: Display contrast, Clock setting, Beep tone, Reset function.

Connecting Devices

Multiple connectivity options: Bluetooth, USB, AUX input.

Bluetooth: Enable pairing mode and connect mobile device.
USB: Connect USB device for music playback and charging.
AUX: Connect 3.5mm audio cable from external player.
Antenna: Ensure proper antenna connection for radio reception.

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

Bluetooth Pairing

Pair mobile devices for wireless audio and calling.

Enter pairing mode: Press and hold Phone button until "PAIRING" appears.
Search on device: Enable Bluetooth and search for "KENWOOD BT312U".
Connect: Select device and enter PIN "0000" if prompted.
Confirm connection: Unit will display "CONNECTED" when paired.
Phonebook sync: Allow access to contacts when prompted.

Note: Up to 5 devices can be paired; only one can be connected at a time.

Audio Features

Comprehensive audio control and playback options.

Playback modes: Normal, Repeat, Random, Intro scan
File support: MP3, WMA from USB devices
Sound settings: Bass, Treble, Balance, Fader controls
Loudness: Enhances bass at low volumes
Radio features: Local/Distance tuning, Auto store presets
Display options: Track info, Radio text, Clock display

Care & Maintenance

Proper care ensures long-term performance.

Cleaning: Use soft, dry cloth only for display and controls
Avoid liquids: Never spray cleaners directly on unit
Ventilation: Ensure proper airflow around unit
USB ports: Keep free of dust and debris
Storage: Protect from extreme temperatures and moisture

CAUTION! Do not use abrasive cleaners or solvents.

Regulatory Information

FCC Compliance: This device complies with Part 15 of FCC rules. Operation subject to conditions: (1) device may not cause harmful interference, (2) device must accept any interference received. Bluetooth: Qualified Bluetooth product. For support, visit www.kenwood.com or contact authorized service centers.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Wiring/fuse	Check fuse; verify proper wiring connections; test vehicle power
Bluetooth not connecting	Pairing mode/distance	Enter pairing mode; ensure device within range; delete old pairing
Poor radio reception	Antenna connection	Check antenna connection; ensure proper grounding; adjust antenna position
USB not recognized	Format/compatibility	Use FAT32 format; check file compatibility; try different USB device
No sound from speakers	Speaker wiring/settings	Check speaker connections; verify fader/balance settings; test speakers
Display dim or blank	Illumination setting	Adjust display dimmer setting; check vehicle illumination wire connection

Reset: Press reset button or disconnect power for 30 seconds.

Service: Contact authorized Kenwood service center for repairs.