DXDM280BT
INSTALLATION/OWNER'S MANUAL
AM/FM/CD Receiver
DXDM280BT 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.
• 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.
• Snap trim ring into place.
Decorative
Bezel
TYPICAL FRONT-LOAD DIN
MOUNTING METHOD
2
DXDM280BT INSTALLATION
Wiring Diagram
FRONT
REAR
SUB
L-CH
R-CH
10 AMP
AGC Fuse
Antenna
Connector
FUSE
When replacing the
fuse, make sure new
fuse is the correct type
and amperage. Using
an incorrect fuse could
damage the radio.
The unit uses one 10 amp
AGC fuse located beside
the wiring connector.
3
DXDM280BT OPERATION
Control Locations
18
1
17
2
16
3
15
4
4
5
6
7
8
9 10 11 12 13 14
1
Preset 1 / Repeat
10
Bluetooth Talk
2
Preset 2 / Random
11
Auxiliary Input
3
Preset 3 / Intro
12
Audio / Menu
4
Power / Mute
13
USB Input
5
Tune / Track Down
14
Display
6
Tune / Track Up
15
Preset 6 / Folder Up
7
Mode
16
Preset 5 / Folder Down
8
Band / Go Back
17
Preset 4 / Play / Pause
9
Volume Knob
18
Eject
DXDM280BT OPERATION
Remote Control
1
2
3
4
17
5
16
6
15
7
14
8
13
9
12
10
11
1
Mode
10
Preset 6 / Folder Up
2
Volume Up
11
Mute
3
Power
12
Audio / Menu
4
Select
13
Preset 5 / Folder Down
5
Tune / Track Up
14
Preset 4 / Play / Pause
6
Volume Down
15
Preset 1 / Repeat
7
Band / Go Back
16
Bluetooth Talk
8
Preset 3 / Intro
17
Tune / Track Down
9
Preset 2 / Random
5
DXDM280BT OPERATION
General Operation
Power On/Off
Mode
Press or any other button (except EJECT) to turn the unit
on. Press to turn the unit off.
Press MODE to select between AM/FM, CD player, Bluetooth,
auxiliary and USB. 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
Volume
Adjust volume using volume knob (00-46).
Display
Press DISP to show the clock. During playback of MP3/files,
ID3 tag information, elapsed time, track number and file/
folder names will automatically rotate on the display.
Reset
Set the Clock
6
The DXDM280BT 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.
Press RESET upon initial installation or if abnormal
operation occurs.
With the unit on, press and hold DISP until the clock begins
to flash, then release. Press the ll button to adjust the
HOUR and press the nn to adjust the minutes.
12/24-hour Clock
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).
Setup Menu
Press and hold AUDIO for more than 3 seconds to access the
setup menu. Press AUDIO momentarily to select between
the menu functions and rotate the volume knob left/right to
adjust or activate the desired function.
DXDM280BT OPERATION
General Operation - Setup Menu
Menu Function
Options
Action
Auto Station
Store
AUTO STORE
Press the volume knob 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 1-30 can be selected.
Local/Distance
Tuning
Tuner
Frequency
Spacing
Auxiliary Input
Beep
Confirmation
Programmable
Turn On Volume
Power On
Message
LOCAL OFF
LOCAL ON
FREQ USA
FREQ EURO
AUX ON
AUX OFF
BEEP OFF
BEEP ON
PRO-VOL #
MSG OFF
Disables power on message. (Example: GOOD MORNING)
MSG ON
Enables power on message to be displayed.
SCROLL 15 SP
Scrolling
Option
unit to scroll once then show the first 10 characters
SCROLL ONCE Programs
on display
SCROLL ON
SCROLL OFF
Demonstration
Mode
Bluetooth
Auto Answer
Programs unit to scroll information every 15 seconds (default).
Programs unit to scroll continuously.
Programs the unit to show the first 10 characters on display.
DEMO OFF
Disables the demonstration mode.
DEMO ON
Enables the demonstration mode.
BT ON
Enables Bluetooth functionality.
BT OFF
Disables Bluetooth functionality.
ANSWER
Auto
Programs unit to automatically answer every incoming phone
call after 2-3 rings.
ANSWER
Manual
button must be pressed to
Programs unit to require the
answer incoming phone calls (default).
7
DXDM280BT OPERATION
General Operation
Audio
Press AUDIO momentarily to select between Bass, Treble,
Balance and Fader.
BASS
Bass
Treble
TREBLE
BALANCE
FADER
EQ
LOUD
SOURCE LEVEL
Press AUDIO until BASS appears then rotate volume knob
left/right to adjust ( -6 minimum / +6 maximum).
Press AUDIO until TREBLE appears then rotate volume knob
left/right to adjust ( -6 minimum / +6 maximum).
Balance
Press AUDIO until BAL appears then rotate volume knob
left/right to adjust (BAL 12L - BAL 12R).
BAL EVEN represents equal balance
Fader
Press AUDIO until FAD appears then rotate volume knob
left/right to adjust (FAD 12R - FAD 12F).
FAD EVEN represents equal fader
EQ
Loudness
Source Volume Level
Press EQ, then turn the volume knob to cycle through the
following equalization curves: FLAT (default), POP, JAZZ,
CLASSIC, BEAT, ROCK and USER. Any manual adjustment
to the Bass or Treble settings are automatically saved as
USER.
Press AUDIO/MENU until LOUD appears then rotate volume
knob left/right to adjust LOUD ON/OFF.
The source volume level control allows a gain adjustment
for each audio source: AM, FM, CD, AUX and USB. Set the
source volume level for each mode, depending on the
relative volume of each audio source.
To set the source volume level, press AUDIO/MENU until
SRC LEVEL appears. After one second, the current mode
will appear on the display. Turn the volume knob to adjust
the audio level of the current source (-3 minimum/+3
maximum).
Note: Only the current mode will be available for
adjustment. To adjust another mode of operation, press
MODE until the desired mode is selected, then set the
source volume level for that mode.
8
DXDM280BT OPERATION
AM/FM Tuner Operation
Seek Tuning Press TUNE nn or TUNE ll momentarily to seek to the
next strong station.
Manual Tuning
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
Note: Seek and manual tuning functions are reversed if
Seek Priority is set to SEEK 2 in the setup menu (refer to
page 7 for details on setting Seek Priority).
Band
Storing and Recalling
Station Presets
Automatically Store
Stations
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.
Press and hold AUDIO/MENU for more than 3 seconds to
find auto store in the display. Then press volume knob to
automatically store strong 6 stations in the current band.
9
DXDM280BT 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.
• TRACK - Continuously repeats selected track.
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.
10
DXDM280BT OPERATION
CD Player Operation - MP3 Files
Playing an MP3 CD
Displaying Information
When an MP3 encoded disc is first inserted,
“DISC READ" will appear in the display. Depending on the
number of files and folders, this may take several seconds.
Press DISP to select between song title, artist, file name,
folder name, track number, and clock/elapsed time.
“NO ARTIST” or "NO TITLE" will be displayed if the MP3 file
contains no ID3 tag information.
“ROOT” will be displayed if the directory name of a root
folder is not labeled.
Title Icon
This icon will illuminate when the song title is displayed.
Artist Icon
This icon will illuminate when the artist name is displayed.
Folder Icon
This icon will illuminate when the folder name is displayed.
File Icon
Character Support
This icon will illuminate when the file name is displayed.
Maximum character display information
• Track name – 32 character maximum
• Directory name – 32 character maximum
• *Song title – 32 character maximum
• *Artist name – 32 character maximum
*Song title and Artist Name will only be displayed if included
with the MP3 file.
When referring to MP3 playback, the following terms
are synonymous:
• File name and track name
• Folder name and directory name
11
DXDM280BT OPERATION
CD Player Operation - MP3 Files
Media Compatibility
The following types of discs/files are compatible:
• CD-ROM (ISO), CD-R, CD-RW
• CD-DA
• MP3 data
The following types of discs/files are not compatible:
• Discs recorded with Track At Once or packet writing
• MP3 PRO format
• MP3 playlists
• WAV format
• AAC, protected AAC, M4A format
Playback Order
Compatible Recording
Formats
MP3 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 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 files - 999
• Maximum folders - 255
• 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). Some
characters 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 written in
the formats other than the above may not play and/or
their file names or folder names may not be displayed
properly.
12
DXDM280BT OPERATION
CD Player Operation - MP3 Files
Additional
MP3Information
An internal buffer provides ESP (Electronic Skip Protection)
to virtually eliminate skipping.
When playing a disc recorded with regular audio files
(CD-DA or .WAV) and MP3 files, the unit will play the
MP3 files only.
Only MP3 files with filename extension (.mp3) can be
played.
Do not attempt to play discs which contain non-MP3
files with the MP3 extension.
Sampling Frequency
Rates
MP3
Transfer Bit rates
MP3
8kHz ~ 48kHz
32kbps ~ 320kbps 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 2.4.
This model will not display ID3 Version 2.4 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
13
DXDM280BT OPERATION
USB Operation
Connecting a USB Device
(sold separately)
To play MP3 files from most USB mass storage devices, line
up the USB connector and insert the USB device into the
unit's USB port.
Playing Music
When a USB device is first connected, “USB READ” 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 files are detected, “NO FILE” will be displayed and the
last mode will be resumed.
Track Select
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.
Fast Forward and
Reverse
Pause
File Search
Step 1
ll 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 USB playback.
ll// IIII toagain
to resume playback.
Press SELECT to enter the file/folder search mode. A list of
all the folders from the USB device will be displayed.
Note: Any files located in the root directory will be located in
the folder named "ROOT". Press SELECT to view the files on
the root folder.
Step 2
Turn the volume knob to cycle through all the folders on the
device and press SELECT to choose the desired folder. The
list of files in the selected folder will be displayed. Turn the
volume knob to cycle through the list of files.
Note: Pressing GO BACK when viewing the contents of a
folder will return to the list of folders on the USB device.
Press GO BACK again to exit the search menu.
Step 3
Once the desired song is displayed, press SELECT to begin
playback of the desired song.
Note: Due to differences in USB device transfer speeds, it is
recommended to limit each folder to less than 30 songs.
14
DXDM280BT OPERATION
USB Operation
Displaying Information
When a file is accessed, the clock and elapsed time will be
displayed. Press DISP momentarily to select beween song
title, artist, file name, folder name, track number and clock/
elapsed time.
"NO TITLE" will be displayed if no song title information is
available.
"NO ARTIST" will be displayed if no artist information is
available.
Song Title Icon
This icon will illuminate when the song title is displayed.
Artist Icon
This icon will illuminate when the artist name is displayed.
Folder Icon
This icon will illuminate when the folder name is displayed.
File Icon
Folder Access
This icon will illuminate when the file name is displayed.
Press
Press
to select the previous folder.
to select the next folder.
Note: Folder access is only available on devices with more
than one folder.
Repeat
Random
Press RPT to enter the Repeat menu, then turn the volume
knob to select one of the following options:
• ALL - Plays all tracks on the device.
• TRACK - Continuously repeats selected track.
• FOLDER - Continuously repeats all files in selected folder.
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.
• FOLDER - Plays all tracks in folder in random order.
Note: Random mode is retained in memory when selecting
between other modes and when the unit is turned on/off.
Intro
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 first 10 seconds of each track.
• FOLDER - Plays first 10 seconds of each track in folder.
15
DXDM280BT OPERATION
USB Operation
Character Support
Maximum character display information
• Track name – 32 character maximum
• Directory name – 32 character maximum
• *Song title – 32 character maximum
• *Artist name – 32 character maximum
*Song title and artist name will only be displayed if included
with the MP3 file.
Media Compatibility
The following types of files are compatible:
• MP3 data
The following types of files are not compatible:
• MP3 PRO format
• MP3 playlists
• WAV format
• AAC, protected AAC, M4A format
Playback Order
Playback Capacity
MP3 playback sequence is based on order the files
are copied to the USB device and begins in the root folder.
Any empty folders or folders that do not include MP3
files are skipped. Depending on your software, the playback
order may vary.
• Maximum number of files: 999
• Maximum number of folders: 255 plus the root directory
• Maximum number of files in each folder and root: 999
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
16
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.
DXDM280BT OPERATION
USB Operation
Additional
MP3Information
Sampling Frequency
Rates
MP3
Transfer Bit rates
MP3
Only MP3 files with filename extension (.mp3) can be
played. Do not attempt to play non-MP3 files with the MP3
extension.
8kHz ~ 48kHz
32kbps ~ 320kbps 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 2.4
Note: If an invalid ID3 tag version is detected, "NO
SUPPORT" will scroll on the display.
17
DXDM280BT OPERATION
Bluetooth® Operation
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 unit 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 unit can be in any mode of operation when pairing
is performed.
Pairing Additional Devices
Connecting a
Paired Device
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.
Most Bluetooth devices support the auto-connect feature,
and will connect automatically if the device is in range when
the unit is powered-on. If your device was previously paired
but does not connect, use these instructions below.
• If your most recently connected Bluetooth device becomes
disconnected or does not reconnect, press and hold
from
Bluetooth mode to reconnect your mobile device.
• To connect a previously paired device that was not recently
connected:
1) Press and hold
to disconnect any connected mobile
devices when Bluetooth is paired. Press and hold
to
connect Bluetooth device again when Bluetooth is not paired.
2) The paired device name will appear on the LCD once it is
connected.
3) Turn the volume knob to cycle through the list of devices.
4) Press the volume knob to cycle through the list of recent
calls up to ten and select the phone number to dial when
Bluetooth is paired. NONE appears on the LCD if there are
no recent calls.
Disconnecting a Device
Press and hold
for 3 seconds to disconnect a connected
device. The device will remain paired and appear in the
SEARCH menu, but not be connected.
Note: Placing a phone call from your cell phone will also
initiate Bluetooth function.
18
DXDM280BT OPERATION
Bluetooth® Operation
Recent Calls List
Redialing the last number
Receiving a phone call
Press SELECT from Bluetooth mode to view recent calls
dialed, received or missed while connected to the head unit.
Turn the volume knob to cycle through the recent phone
numbers. Press SELECT or
to dial
To redial the last phone number, press
from Bluetooth
mode. Press
or SELECT again to redial the phone
number.
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 unit. The incoming ring tone may not be heard if
the volume is set to a low level or mute is activated.
• Press
to receive the incoming phone call.
• Press and hold
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
Streaming Audio
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 unit will resume the previous mode.
The unit supports A2DP (advanced audio distribution profile)
wireless streaming audio from your Bluetooth mobile device
directly to your head unit. The following functions can be
used to control the music:
ll
nn
• Press
to skip to the next available audio track.
• Press
to skip to the previous audio track.
• Press / II to toggle between play and pause during
playback.
l
19
DXDM280BT OPERATION
Bluetooth® Operation
Streaming Audio Operation
The unit 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
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
Note: Some Bluetooth devices may not fully support these commands.
20
DXDM280BT 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
No playable MP3files found on the
device
Check the device for valid
MP3 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.
21
DXDM280BT 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.
22
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.
DXDM280BT 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.
23
DXDM280BT 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
USB Charge: 1A
Speaker output impedance: 4~8 ohms
Line output voltage: 1.2 Volts RMS
Dimensions: 7" x 7" x 4" (178 x 178 x 100 mm)
Design and specifications subject to change without notice.
CEA-2006 Power Standard Specifications
(reference: 14.4VDC +/- 0.2V, 20Hz~20kHz)
Power Output: 16 Watts RMS x 4 channels at 4 ohms and < 1% THD+N
Signal to Noise Ratio: 75dBA (reference: 1 watt into 4 ohms)
24
DXDM280BT OPERATION
Notes
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Dual Electronics Corp.
Toll Free: 1-866-382-5476
9AM-5PM EST, Monday-Friday
www.dualav.com
©2016 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.
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