Kenwood KMM BT312U Manual

The Kenwood KMM BT312U is a single-DIN digital media receiver with Bluetooth connectivity, USB port, auxiliary input, and AM/FM tuner. Features include hands-free calling, audio streaming, front panel USB for iOS/Android devices, 4-channel preamp outputs, customizable illumination, and 13-band graphic equalizer. 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 Operation 8. Audio Settings 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Digital media receiver, Remote Control, Bluetooth antenna, USB port, AUX input, Preamp outputs.

Feature	Description
Bluetooth connectivity	For hands-free calling and audio streaming
USB port	For iOS/Android devices and USB storage
AUX input	For external audio devices
AM/FM tuner	With preset memory (18 FM, 6 AM)
Preamp outputs	4-channel (front/rear) for external amplifiers
13-band graphic equalizer	Customizable sound profiles
Illumination control	Adjustable button and display colors
Source	Switches between Bluetooth, USB, AUX, Tuner
Volume control	Adjusts audio output level
Power	Turns unit on/off

Installation

Unpack and inspect contents. Ensure vehicle is turned off during installation.

Disconnect vehicle battery: Remove negative terminal for safety.
Mount receiver: Use DIN sleeve and mounting kit for secure fit.
Connect wiring: Match wire colors (red-ignition, yellow-battery, black-ground).
Connect speakers: Attach speaker wires to appropriate outputs.
Connect antenna: Plug in vehicle antenna cable.
Reconnect battery and test unit.

WARNING! Disconnect battery before installation to prevent electrical shorts. Professional installation recommended.

First-Time Setup

Power on unit; follow initial setup procedures.

Pair Bluetooth: Enable pairing mode, search for "KMM-BT312U" on your device.
Set clock: Press SOURCE to enter settings, adjust time format and time.
Program radio presets: Tune to desired stations, press and hold preset buttons.
Adjust audio settings: Use EQ settings for preferred sound profile.
Customize illumination: Select button and display colors in settings.

CAUTION! Do not operate while driving. Complete setup when vehicle is parked.

Specifications

Chassis Size: Single DIN
Bluetooth Version: 3.0+EDR
Power Output: 22W x 4 channels (max)
Audio Inputs: USB, AUX, Bluetooth
Tuner: AM/FM with RDS
Preamp Outputs: 4 channels (2V)
Equalizer: 13-band graphic EQ
Supported Formats: MP3, WMA, AAC, WAV
Power Requirement: 12V DC, negative ground
Operating Temp: -20°C to 60°C

Controls and Settings

Access settings via SOURCE button and menu navigation. Front Panel: POWER, VOLUME, SOURCE, USB port, AUX input.

Remote: POWER, Volume controls, Source selection, Track skip, Preset buttons, Menu navigation.

Audio Settings: 13-band EQ, Bass/Mid/Treble, Loudness, Fader/Balance. Bluetooth: Pairing, Phonebook access, Call history. System: Clock, Display settings, Illumination colors, Reset options. Tuner: Manual/auto seek, Preset memory.

Connecting Devices

Bluetooth: Wireless pairing. USB: Front port for devices/storage. AUX: 3.5mm input for external audio.

Turn off vehicle before connecting wired devices.
For USB: Connect compatible device or storage drive.
For AUX: Connect 3.5mm cable from external device.
Select source via SOURCE button (BT, USB, AUX, TUNER).

Tip: Ensure Bluetooth is enabled on your phone before pairing.

Bluetooth Operation

Supports hands-free calling and audio streaming.

Pairing: Enter pairing mode (hold SOURCE), select "KMM-BT312U" on device.
Calling: Answer/end calls with phone button; access phonebook via menu.
Audio streaming: Play music from connected device automatically.
Multiple devices: Unit remembers up to 5 paired devices.
Disconnect: Turn off Bluetooth on device or reset unit pairing.

WARNING! Focus on driving while using hands-free features. Pull over if needed for complex operations.

Audio Settings

13-band Graphic Equalizer: Adjust frequencies from 60Hz to 16kHz. Sound Profiles: Customizable presets (ROCK, POP, CLASSIC, etc.). Loudness: Boosts bass at low volumes. Fader/Balance: Adjusts speaker output distribution.

Care & Maintenance

Clean with dry, soft cloth only. Avoid liquids and abrasive cleaners.

CAUTION! Do not use chemical cleaners on display. Keep USB port free of debris.

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; verify fuse integrity.
Bluetooth not connecting	Pairing mode/ distance	Enter pairing mode; ensure device within range; delete old pairing.
No sound from speakers	Wiring/ settings	Check speaker connections; verify volume not muted; adjust fader.
USB not recognized	Format/ connection	Use FAT32 format; ensure proper connection; try different device.
Poor radio reception	Antenna/ location	Ensure antenna connected properly; check for obstructions.

Reset: Hold SOURCE while turning on unit to factory reset.

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