DCBT304U
INSTALLATION/OWNER'S MANUAL
AM/FM/CD Receiver with Detachable Face
Front and Rear Inputs
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.
Getting Started
• Remove trim ring from unit.
• Remove 2 transit screws located on top of the unit.
• Insert the supplied keys into the slots as shown, and slide the unit out of the mounting
sleeve.
• Install mounting sleeve into opening, bending tabs to secure.
• Connect wiring harness and antenna. Consult a qualified technician if you are unsure.
• Certain vehicles may require an installation kit and/or wiring
harness adapter (sold separately).
• Test for correct operation and slide into mounting sleeve to secure.
• Snap trim ring into place.
REMOVAL KEYS
MOUNTING SLEEVE
HEAD UNIT
TYPICAL FRONT-LOAD
DIN MOUNTING METHOD
2
INSTALLATION
MOUNTING KIT
OR DASHBOARD
DCBT304U INSTALLATION
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.
3
DCBT304U OPERATION
Control Locations - Receiver
1
19
4
2
18
3
17
4
5
16
15
14
13
12
11
10
9
8
1
Release
11
Preset 3 / Intro
2
Band / Go Back
12
Preset 2 / Random
3
Volume Knob
13
Preset 1 / Repeat
4
Power / Mute
14
Display
5
Eject
15
Tune / Track Up
6
USB Port
16
Tune / Track Down
7
Auxiliary Input
17
Mode
8
Preset 6 / Folder Up
18
Audio / Menu
9
Preset 5 / Folder Down
19
Bluetooth Talk
10
Preset 4 / Play / Pause
6
7
DCBT304U OPERATION
General Operation
Faceplate Removal
Press RELEASE and pull away from the left side to remove.
To re-install, insert right side of faceplate first then push
left side to secure.
Power On/Off
Press or any other button (except EJECT) to turn the unit
on. Press to turn the unit off.
Mode
Press MODE to select between AM/FM, CD player, auxiliary,
USB and Bluetooth. Modes of operation are shown in the
display.
NOTE: CD and USB modes will not appear unless a CD is
inserted or USB device is connected.
Auxiliary Input
The DCBT304U offers a 3.5 mm auxiliary input port on the
front panel of the unit for connecting an audio device, MP3
player, etc. Press MODE to select auxiliary input mode.
Volume
Adjust volume using volume knob (00-47).
Display
Press DISP to show the clock. During playback of MP3/WMA
files, ID3 tag information, elapsed time, track number and
file/folder names will automatically rotate on the display.
Reset
Set the Clock
12/24-hour Clock
Setup Menu
Press RESET upon initial installation or if abnormal
operation occurs. Reset button is located behind the front
panel.
With the unit on, press and hold DISP until the clock begins
to flash, then release. Turn the volume knob to the right to
adjust the hours or to the left to adjust the minutes.
The clock will display 12-hour AM/PM time in USA frequency
spacing mode (PM 10:00). In European frequency spacing
mode, the clock will display 24-hour time (22:00).
Press and hold AUDIO/MENU for more than 3 seconds to
access the setup menu. Press AUDIO/MENU momentarily
to select between the menu functions and rotate the volume
knob left/right to adjust or activate the desired function.
5
DCBT304U OPERATION
General Operation - Setup Menu
Menu Function
Auto Station
Store
Local/Distance
Tuning
Tuner
Frequency
Spacing
Auxiliary
Input
Beep
Confirmation
Options
AUTO STORE
LOCAL OFF
LOCAL ON
FREQ USA
FREQ EURO
AUX ON
AUX OFF
BEEP OFF
BEEP ON
Programmable
Turn On Volume
PRO-VOL #
Power on
Message
MSG OFF
MSG ON
SCROLL 15 S
Scrolling
Option
Demonstration
Mode
6
SCROLL ONCE
SCROLL ON
SCROLL OFF
DEMO OFF
DEMO ON
Action
Press SELECT to seek and save 6 strong stations in the
current band. (Tuner mode only)
Activates distance tuning (Tuner mode only).
Activates local tuning for strong station reception only (Tuner
mode only).
Programs the unit to USA tuner spacing.
(200kHz for FM and 10kHz for AM). (Tuner mode only)
Programs the unit to European tuner spacing.
(50kHz for FM and 9kHz for AM). (Tuner mode only)
Enables the front panel 3.5mm auxiliary input.
Disables the front panel 3.5mm auxiliary input.
Disables the confirmation beep.
Enables the confirmation beep.
Programs unit to always turn on at a specific volume
(default is OFF). Any volume level 1-46 can be selected.
Disables power on message. (example: GOOD MORNING)
Enables power on message to be displayed.
Programs unit to scroll information once every 15 seconds
(default).
Programs unit to scroll once, then show the first 10
characters on display.
Programs unit to scroll continuously.
Programs unit to show the first 10 characters on the display.
Disables the demonstration mode. Enables the demonstration message.
DCBT304U OPERATION
General Operation
Audio
Press AUDIO/MENU momentarily to select between Bass,
Treble, Balance and Fader.
BASS
Bass
Treble
Balance
Fader
Seek Tuning
Manual Tuning
Band
Storing and Recalling
Station Presets
MIDDLE
TREBLE
BALANCE
FADER
Press AUDIO/MENU until BASs appears then rotate volume
knob left/right to adjust ( -7 minimum / +7 maximum).
Press AUDIO/MENU until TREBLE appears then rotate
volume knob left/right to adjust ( -7 minimum / +7
maximum).
Press AUDIO/MENU until BAL appears then rotate volume
knob left/right to adjust (BAL 10L - BAL 10R).
BAL EVEN represents equal balance.
Press AUDIO/MENU until FADER appears then rotate
volume knob left/right to adjust (FAD 10R - FAD 10F).
FAD EVEN represents equal fader.
AM/FM Tuner Operation
Press TUNE nn or TUNE ll momentarily to seek to the
next strong station.
nn
ll
Press and hold TUNE
or TUNE
until "MANUAL"
appears, then press TUNE
or TUNE
momentarily
to change radio frequency up or down one step at a time.
Press and hold to advance quickly.
nn
ll
Press BAND to select between FM1, FM2, FM3, AM1 and
AM2 bands.
Up to 18 FM stations and 12 AM stations can be stored. To
store a station, select the desired band and station. Press
and hold the desired preset button (1-6) for more than
2 seconds. When stored, the preset number will appear in
the display. The station can be recalled anytime by pressing
the corresponding preset button.
7
DCBT304U OPERATION
CD Player Operation
Insert CD
Eject CD
Track Select
Fast Forward/Reverse
Pause
Intro
Repeat
Random
CD-R/CD-RW
Compatibility
With the label facing up, insert a standard size CD into the
CD slot. The CD will automatically begin playback.
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. The unit
does not have to be turned on to eject CD.
ll
Press TRACK
to skip to the beginning of the next
track. Press TRACK
to return to the beginning of the
current track. Pressing TRACK
again skips to the
beginning of the previous track.
nn
ll
nn
nn on the remote
Press and hold TRACK
or TRACK
control to fast forward or reverse a track.
Press
Press
temporarily stop CD playback.
ll// IIII toagain
to resume playback.
Press INT to enter the Intro menu, then turn the volume
knob to select one of the following options:
• OFF - Cancels the INT function.
• ALL - Plays the first 10 seconds of each track.
Press RPT to enter the Repeat menu, then turn the volume
knob to select one of the following options:
• ALL - Plays all tracks on CD.
• SONG - Continuously repeats selected song.
Press RDM to enter the Random menu, then turn the
volume knob to select one of the following options:
• OFF - Cancels the RDM function.
• ALL- Plays all tracks in random order.
Some CD-Rs and CD-RWs may be incompatible with this
unit, depending on media type and recording method. In
addition, the following CDs may be incompatible with this
unit:
CDs exposed to extreme temperatures or direct sunlight
for extended periods of time, CDs recorded in which a
recording session failed or a re-recording was attempted
and, or encrypted or copy-protected CDs which do not
conform to the audio CD-DA red book recording standard.
8
DCBT304U OPERATION
CD Player Operation - MP3/WMA Files
Playing an MP3/WMA CD
Displaying Information
Character Support
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.
ID3 tag and file/folder information will be automatically
changed during playback. Press DISP to view the clock.
Default display will resume after five seconds.
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.
When referring to MP3/WMA playback, the following terms
are synonymous:
• File name and track name
• Folder name and directory name
Repeat
Random
Intro
Press RPT to choose between:
• Current Song - Continuously repeats selected track.
• Current Folder - Continuously repeats all files in folder.
Press RDM to choose between:
• Off - Cancels RDM function.
• All Songs - Plays all tracks in random order.
• Current Folder - Plays all tracks in folder in random
order.
Press INT to enter the Intro menu, then turn the volume
knob to select one of the following options:
• Off - Cancels the INT function.
• All Songs - Plays first 10 seconds of each track.
• Current Folder - Plays first 10 seconds of each track in
folder.
9
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).
• WMA lossless format
• Discs recorded with Track At Once or packet writing
• MP3 PRO format
• MP3 playlists
• WAV format
Playback Order
Compatible Recording
Formats
MP3/WMA playback sequence is based on recorded order
of files and begins in the root folder of the disc. Any empty
folders or folders that do not include MP3/WMA files are
skipped. This unit may not play files in the order they were
recorded in. Refer to your recording software’s user’s
manual for more information.
• ISO9660 level 1
• ISO9660 level 2
• Yellow Book MODE 1
• Yellow Book MODE 2 FORM 1
• Multi session
• Maximum folders and files - 256
• Maximum folder levels - 8
• MPEG-1/2/2.5 Audio Layer-3
ISO9660 standards:
• Maximum nested folder depth is 8 (including the root
folder).
• Valid characters for folder/file names are letters A-Z (all
caps), numbers 0-9, and “_” (underscore). Somec haracters
may not be displayed correctly, depending on the character
type.
• This device can play back discs in Joliet, Romeo, and other
standards that conform to ISO9660. MP3/WMA written in the
formats other than the above may not play and/or their file
names or folder names may not be displayed properly.
10
DCBT304U OPERATION
CD Player Operation - MP3/WMA Files
Additional MP3/WMA
Information
When playing a disc recorded with regular audio files
(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.
Do not attempt to play discs which contain non-MP3/WMA
files with the MP3/WMA extension.
Sampling Frequency
Rates
MP3
8kHz ~ 48kHz
WMA
8kHz ~ 48kHz
Transfer Bit rates
MP3
WMA
8kbps ~ 320kbps constant
Variable bit rates
8kbps ~ 384kbps constant
Variable bit rates
Note: Some files may not play or be displayed correctly,
depending on sampling rates and bit rates.
MP3 Tag Display
Recommended Settings
ID3 tags Version 1.0 to 2.0.
This model will not display ID3 Version 2.0 or greater tags.
For best results, use the following settings when burning an
MP3 disc:
128kbps or higher constant bit rate
44.1kHz or higher sampling frequency
For best results, use the following settings when burning a
WMA disc:
64kbps or higher constant bit rate
32kHz or higher sampling frequency
11
DCBT304U OPERATION
USB Operation
Connecting a USB Device
(sold separately)
Playing Music
Track Select
Fast Forward and
Reverse
Pause
Displaying Information
Repeat
Random
Intro
12
To play MP3/WMA files from most USB mass storage
devices, line up the USB connector and insert the USB
device into the DCBT304U's USB port.
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. If no valid MP3/
WMA files are detected, “NO FILE” will be displayed and the
last mode will be resumed.
ll nn
Press TRACK
to skip to the beginning of the next
track. Press TRACK
to return to the beginning of the
current track. Pressing TRACK
again skips to the
beginning of the previous track.
ll
nn
nn on the remote
Press and hold TRACK
or TRACK
control to fast forward or reverse a track.
Press
Press
temporarily stop USB playback.
ll// IIII toagain
to resume playback.
ID3 tag and file/folder information will be automatically
changed during playback. Press DISP to view the clock.
Default display will resume after five seconds.
Press RPT to choose between:
• Current Song - Continuously repeats selected track.
• Current Folder - Continuously repeats all files in folder.
Press RDM to choose between:
• Off - Cancels RDM function.
• All Songs - Plays all tracks in random order.
• Current Folder - Plays all tracks in folder in random
order.
Press INT to enter the Intro menu, then turn the volume
knob to select one of the following options:
• Off - Cancels the INT function.
• All Songs - Plays first 10 seconds of each track.
• Current Folder - Plays first 10 seconds of each track in
folder.
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.
Media Compatibility
The following types of files are compatible:
• MP3 data
• WMA data
The following types of files are not compatible:
• WMA files that are protected by DRM (Digital Rights Management).
• WMA lossless format
• MP3 PRO format
• MP3 playlists
• WAV format
Playback Order
Playback Capacity
MP3/WMA playback sequence is based on order the files
are copied to the USB/SD device and begins in the root
folder. Any empty folders or folders that do not include MP3/
WMA files are skipped. Depending on your software, the
playback order may vary.
• Maximum number of files: 999
• Maximum number of folders: 999
• Maximum number of folder levels (sub folders): 8
Note: If the number of files/folders exceeds the maximum
outlined above, the additional files/folders will be ignored.
Note: Devices that exceed the maximum number of files or
folders may not function properly.
USB Device Compatibility
Due to the differences of USB devices, some devices may
not be compatible. USB devices must be ‘mass storage
class’ and formatted to the FAT or FAT32 file system in
order to ensure compatibility. USB devices must be 32GB or
smaller in capacity to be compatible.
13
DCBT304U OPERATION
USB Operation
Additional MP3/WMA
Information
Only MP3 files with filename extension (.mp3) can be played.
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
MP3
8kHz ~ 48kHz
WMA
8kHz ~ 48kHz
Transfer Bit rates
MP3
WMA
8kbps ~ 320kbps constant
Variable bit rates
8kbps ~ 384kbps constant
Variable bit rates
Note: Some files may not play or be displayed correctly,
depending on sampling rates and bit rates.
MP3 Tag Display
ID3 tags Version 1.0 to 2.0
Note: If an invalid ID3 tag version is detected, "NO
SUPPORT" will scroll on the display.
14
DCBT304U OPERATION
Bluetooth® Operation
Pairing a Device
Preparation
Pairing a New Device
Before you can use a Bluetooth device, it must be paired and
connected. Make sure that Bluetooth is activated on your
device before you begin the pairing process.
The DCBT304U broadcasts the pairing signal constantly
when no devices are currently connected. Complete the
pairing sequence from your Bluetooth device. Refer to the
owner's manual for your device for more details.
The device name is "DUAL BT" The Bluetooth passcode "1234"
Note: The DCBT304U can be in any mode of operation when
pairing is performed.
Pairing Additional Devices
If a device is currently connected, press and hold
to
disconnect the current device before a new device can be
paired. Then begin the pairing sequence from the new
Bluetooth device.
(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.
• If your most recently connected Bluetooth device becomes disconnected or does not
reconnect, press
from Bluetooth mode to reconnect your mobile device.
• To connect a previously paired device that was not recently connected:
1) If applicable, press and hold
to disconnect any connected mobile devices.
2) From Bluetooth mode, press SELECT. "Paired Devices" will appear on the LCD.
3) Turn the volume knob to cycle through the list of devices.
4) Press SELECT or
to connect to the desired device. It must be in range to connect.
Note: If the Auto Connect setup menu setting is set to OFF, you must press
you device after pairing, and each time the DCBT304U is powered-on.
to connect
Disconnecting a Device
Press and hold
for 3 seconds to disconnect a connected device. The device will remain
paired and appear in the PAIRED DEVICES menu, but not be connected.
15
DCBT304U OPERATION
Bluetooth® Operation
Making a Phone Call
Manual Dialing
• Press
once. "Enter Phone Number" will be shown, then an "_" will appear on the display.
Note: Placing a phone call from your cell phone will also use
the Bluetooth function of the DCBT304U.
Recent Calls List
• Press SELECT from Bluetooth mode to view the 10 most
recent phone calls that were dialed, received or missed
while connected to the DCBT304U.
• Turn the volume knob to cycle through the recent phone
numbers. Press SELECT or
to dial the phone number.
Redialing the last number
To redial the last phone number, press
two times from
Bluetooth mode. Press
again to redial the phone number.
Receiving and Ending Phone Calls
Receiving a Phone Call
Incoming phone calls will automatically appear on the
display and a ring tone will be heard.
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.
• Press
• Press
to receive the incoming phone call.
to refuse the incoming phone call.
Note: If Auto Answer is set to ON in the setup menu, all
phone calls will be received automatically.
Ending a Phone Call
16
During an active phone call, press
to end a phone call.
If the phone call was received when listening to music in
another mode, the DCBT304U will resume the previous
mode.
DCBT304U OPERATION
Bluetooth® Operation
During a Phone Call
Volume
Microphone Mute
Audio Transfer
Call Waiting
Call Hold
Turn the volume knob to adjust the volume level during a
phone call. Bluetooth mode has a separate volume level
from the main volume of other modes. The DCBT304U will
remember the volume level in Bluetooth mode and always
return to the last volume level for each phone call.
Press MUTE during a phone call to turn the DCBT304U's
external microphone off. Press MUTE again to resume
microphone operation.
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.
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. Press
again to switch back to the first call.
During a phone call, when there are no additional incoming
calls, press
to place the call on hold. Press
again to
resume the phone call.
Note: Audio transfer, call waiting and call hold must be
supported by the mobile phone and service provider to
function properly.
Bluetooth Setup Menu Options
Function
Options
Action
Bluetooth
BT
(ON/OFF)
Enables/disables Bluetooth functionality.
Auto Connect
ACNT
(ON/OFF)
Set to ON to allow a Bluetooth device to connect automatically. Setting to OFF requires manually connecting the device.
Auto Answer
AANS
(OFF/ON)
When set to ON, every incoming phone call will automatically be
answered after 2-3 rings. When set to OFF, the
button must
be pressed to answer incoming phone calls.
Speaker
Output
BT SPK
(FR/ALL)
Set to FRONT to direct the Bluetooth audio output to the front
speakers only. Set to ALL to enable Bluetooth audio to output
from all 4 speakers.
17
DCBT304U OPERATION
Bluetooth® Operation
Streaming Audio Operation
The DCBT304U supports A2DP (advanced audio distribution profile) wireless streaming
audio from your Bluetooth mobile device directly to your head unit. You can also control
your music from the front panel of the head unit using AVRCP (audio video remote control
profile).
Notes:
• To stream music to your head unit, your mobile device must support the A2DP and AVRCP Bluetooth profiles. Check the owner's manual of your mobile device for details.
• Streaming audio must be enabled from your mobile device. This option will vary depending on the device. Some devices allow streaming audio to be disabled.
After pairing, connecting and enabling streaming audio from a compatible mobile device,
begin playing music using the music player on your mobile device. Once the music is
playing, the following functions can be used to control the music:
• The
• The
• The
• The
will skip to the next available audio track.
ll button
button will skip to the previous audio track.
nn
/ II button will toggle between play and pause during playback.
l button will stop the audio playback.
Note: Some Bluetooth devices may not fully support these commands.
Bluetooth Reset
Resetting the Bluetooth module will remove the list of paired phones and delete the list of
recent calls from memory.
To reset Bluetooth, perform the following steps:
1) Press MODE UP/DOWN until the head unit is in Bluetooth mode.
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.
18
DCBT304U OPERATION
Troubleshooting
Problem
Unit will not turn on (no power)
Unit has power (but no sound)
Unit blows fuses
Excessive skipping
ERR FILE appears on display
NO FILE appears on display
Unit will not accept a disc
Cause
Action
Yellow wire not connected or incorrect
voltage Red wire not connected or
incorrect voltage
Black wire not connected
Fuse blown
Speaker wires not connected
Check connections for proper
voltage (11~16VDC)
One or more speaker wires touching
each other or touching chassis ground
Yellow or red wire touching chassis
ground
Speaker wires touching chassis ground
Incorrect fuse rating
Unit is not mounted correctly or
backstrap is not secure
Physical defect in media (CD, CD-R or
CD-RW)
Check for pinched wire
Use fuse with correct rating
Check mounting sleeve and
backstrap support
Disc read error
Press eject or RESET
Focus error or disc is in upside down
Press eject or RESET
The WMA file is copy-protected by DRM
(Digital Rights Management)
Write disc using WMA files that
are not copy-protected
No playable MP3/WMA files found on
the device
Check the device for valid
MP3/WMA files
CD mechanism position out of
alignment
Press EJECT to reset CD
mechanism position
CD transit screws still in place
NO SUPPORT appears
on display
Check connection to ground
Replace fuse
Check connections at speakers
Insulate all bare speaker wires
from each other and chassis
ground
An invalid ID3 tag version is present
Check for pinched wire
Check media for scratches
Remove 2 transit screws
located on top of the unit
Version 1.0 to 2.0 ID3 tags are
supported.
19
DCBT304U OPERATION
Limited One Year Warranty
This warranty gives you specific legal
rights. You may also have other rights
which vary from state to state.
Dual Electronics Corp. warrants this
product to the original purchaser to be free
from defects in material and workmanship
for a period of one year from the date of
the original purchase.
Dual Electronics Corp. agrees, at our
option, during the warranty period,
to repair any defect in material or
workmanship or to furnish an equal
new, renewed or comparable product
(whichever is deemed necessary) in
exchange without charges, subject to
verification of the defect or malfunction and
proof of the date of purchase. Subsequent
replacement products are warranted for
the balance of the original warranty period.
Who is covered? This warranty is extended
to the original retail purchaser for products
purchased from an authorized Dual dealer
and used in the U.S.A.
What is covered? This warranty covers all
defects in material and workmanship in
this product. The following are not covered:
software, installation/removal costs,
damage resulting from accident, misuse,
abuse, neglect, product modification,
improper installation, incorrect line
voltage, unauthorized repair or failure
to follow instructions supplied with the
product, or damage occurring during
return shipment of the product. Specific
license conditions and copyright notices for
the software can be found via www.dualav.
com.
20
What to do?
1. Before you call for service, check the
troubleshooting guide in your owner’s
manual. A slight adjustment of any
custom controls may save you a service
call.
2. If you require service during the
warranty period, you must carefully
pack the product (preferably in the
original package) and ship it by prepaid
transportation with a copy of the original
receipt from the retailer to an
authorized service center.
3. Please describe your problem in
writing and include your name, a
return UPS shipping address (P.O. Box
not acceptable), and a daytime phone
number with your shipment.
4. For more information and for the
location of the nearest authorized
service center please contact us by one
of the following methods:
• Call us toll-free at 1-866-382-5476
• E-mail us at cs@dualav.com
Exclusion of Certain Damages: This
warranty is exclusive and in lieu of any
and all other warranties, expressed or
implied, including without limitation the
implied warranties of merchantability and
fitness for a particular purpose and any
obligation, liability, right, claim or remedy
in contract or tort, whether or not arising
from the company’s negligence, actual
or imputed. No person or representative
is authorized to assume for the company
any other liability in connection with the
sale of this product. In no event shall the
company be liable for indirect, incidental or
consequential damages.
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.
Warning: Changes or modifications to this unit not expressly approved by the party
responsible for compliance could void the user’s authority to operate the equipment.
Note: This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:
•
Reorient or relocate the receiving antenna.
•
Increase the separation between the equipment and receiver.
•
Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
•
Consult the dealer or an experienced radio/TV technician for help.
21
DCBT304U OPERATION
Specifications
CD Player
Frequency response: 20Hz-20kHz
Channel separation @ 1kHz: >60dB
D/A converter: 1 Bit
FM Tuner
Tuning range: 87.5MHz-107.9MHz
Usable sensitivity: 8.5dBf
50dB quieting sensitivity: 10dBf
Stereo separation @ 1kHz: >30dB
Frequency response: 30Hz-13kHz
AM Tuner
Tuning range: 530kHz-1710kHz
Usable sensitivity: <42dBu
Frequency response: 30Hz-2.2kHz
General
Speaker output impedance: 4~8 ohms
Line output voltage: 2 Volts RMS
Dimensions: 7" x 7" x 2" (178 x 178 x 50 mm)
Design and specifications subject to change without notice.
CEA-2006 Power Standard Specifications
(reference: 14.4VDC +/- 0.2V, 20Hz~20kHz)
22
Power Output: 18 Watts RMS x 4 channels at 4 ohms and < 1% THD+N
Signal to Noise Ratio: 70dBA (reference: 1 watt into 4 ohms)
DCBT304U OPERATION
Notes
23
Dual Electronics Corp.
Toll Free: 1-866-382-5476
Monday-Friday, 9AM-5PM, EST
www.dualav.com
©2014 Dual Electronics Corp. All rights reserved.
The Bluetooth® word mark and logos are owned by the Bluetooth SIG, Inc. and any use of such marks by Namsung is under
license.
Other trademarks and trade names are those of their respective owners.
NSA0314-V01
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