DCBT304U INSTALLATION Preparation Please read entire manual before installation. Before You Start • Disconnect negative battery terminal. Consult a qualified technician for instructions. • Avoid installing the unit where it would be subject to high temperatures, such as from direct sunlight, or where it would be subject to dust, dirt or excessive vibration.
Wiring Diagram Antenna Connector 10 AMP AGC Fuse FUSE When replacing the fuse, make sure new fuse is the correct type and amperage. Using an incorrect fuse could damage the radio. The DCBT304U uses one 10 amp AGC fuse located in-line.
DCBT304U OPERATION Control Locations - Receiver Release Preset 3 / Intro Band / Go Back Preset 2 / Random Volume Knob Preset 1 / Repeat Power / Mute Display Eject Tune / Track Up USB Port Tune / Track Down Auxiliary Input Mode Preset 6 / Folder Up...
NOTE: CD and USB modes will not appear unless a CD is inserted or USB device is connected. The DCBT304U offers a 3.5 mm auxiliary input port on the Auxiliary Input front panel of the unit for connecting an audio device, MP3 player, etc.
DCBT304U OPERATION General Operation - Setup Menu Menu Function Options Action Auto Station Press SELECT to seek and save 6 strong stations in the AUTO STORE Store current band. (Tuner mode only) LOCAL OFF Activates distance tuning (Tuner mode only). Local/Distance Activates local tuning for strong station reception only (Tuner Tuning LOCAL ON mode only).
Page 7
DCBT304U OPERATION General Operation Audio Press AUDIO/MENU momentarily to select between Bass, Treble, Balance and Fader. BASS MIDDLE TREBLE BALANCE FADER Bass Press AUDIO/MENU until BASs appears then rotate volume knob left/right to adjust ( -7 minimum / +7 maximum). Treble Press AUDIO/MENU until TREBLE appears then rotate volume knob left/right to adjust ( -7 minimum / +7 maximum).
DCBT304U OPERATION CD Player Operation Insert CD With the label facing up, insert a standard size CD into the CD slot. The CD will automatically begin playback. Eject CD Press EJECT to eject the CD. The unit will change to previous mode of operation. If the disc is not removed within 10 seconds, the unit will reload the disc.
Page 9
DCBT304U OPERATION CD Player Operation - MP3/WMA Files Playing an MP3/WMA CD When an MP3/WMA encoded disc is first inserted, “LOAD" will appear in the display. Depending on the number of files and folders, this may take several seconds. Displaying Information ID3 tag and file/folder information will be automatically changed during playback. Press DISP to view the clock.
Page 10
DCBT304U OPERATION CD Player Operation - MP3/WMA Files Media Compatibility The following types of discs/files are compatible: • CD-ROM (ISO), CD-R, CD-RW • CD-DA • MP3 data • WMA data The following types of discs/files are not compatible: • WMA files that are protected by DRM (Digital Rights Management).
Page 11
DCBT304U OPERATION CD Player Operation - MP3/WMA Files Additional MP3/WMA When playing a disc recorded with regular audio files Information (CD-DA or .WAV) and MP3/WMA files, the unit will play the MP3/WMA files only. Only MP3 files with filename extension (.mp3) can be played. Only WMA files with filename extension (.wma) can be played.
To play MP3/WMA files from most USB mass storage (sold separately) devices, line up the USB connector and insert the USB device into the DCBT304U's USB port. Playing Music When a USB device is first connected, “LOAD” will appear in the display and playback will begin momentarily. Depending on the number of files and folders, it may take several seconds for the device to begin playing.
Page 13
DCBT304U OPERATION USB Operation Character Support Maximum character display information • Track name – 64 character maximum • Directory name – 64 character maximum • *Song title – 64 character maximum • *Artist name – 64 character maximum • *Album name – 64 character maximum *Song title, artist name and album name will only be displayed if included with the MP3/WMA file.
Page 14
DCBT304U OPERATION USB Operation Additional MP3/WMA Only MP3 files with filename extension (.mp3) can be played. Information Only WMA files with filename extension (.wma) can be played. Do not attempt to play non-MP3/WMA files with the MP3/WMA extension. Sampling Frequency Rates 8kHz ~ 48kHz 8kHz ~ 48kHz Transfer Bit rates...
(Re)Connecting a Paired Device Most Bluetooth devices support the auto-connect feature, and will connect automatically if the device is in range when the DCBT304U is powered-on. If your device was previously paired but does not connect, use these instructions below. Some devices require authorization to allow the auto connect feature.
Note: The volume of the ring tone depends on the volume level of the DCBT304U. The incoming ring tone may not be heard if the volume is set to a low level or mute is activated.
Audio Transfer Press DISP during a phone call to transfer the call from the DCBT304U to the cell phone. Press DISP again to toggle the audio back to the DCBT304U. Call Waiting During a phone call, if there is a second incoming call, press to place the first call on hold and switch to the second phone call.
2) Press and hold MODE DOWN for 3 seconds to reset the Bluetooth settings back to the factory default. Compatibility Note: Due to the differences in Bluetooth technology, some mobile devices may be incompatible, function improperly or may not support all features when used with the DCBT304U.
DCBT304U OPERATION Troubleshooting Problem Cause Action Yellow wire not connected or incorrect Check connections for proper voltage Red wire not connected or Unit will not turn on voltage (11~16VDC) incorrect voltage (no power) Black wire not connected Check connection to ground Fuse blown Replace fuse Speaker wires not connected Check connections at speakers Unit has power ...
2. If you require service during the the original purchase. warranty period, you must carefully pack the product (preferably in the Dual Electronics Corp. agrees, at our original package) and ship it by prepaid option, during the warranty period, transportation with a copy of the original...
DCBT304U OPERATION FCC Compliance This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.