XDM6820
INSTALLATION/OWNERS MANUAL
AM/FM/CD/MP3/WMA Receiver with Detach Face
XDM6820 INSTALLATION
Wiring Diagram
FUSE
When replacing the fuse,
make sure new fuse is the
correct type and amperage.
Using an incorrect fuse
could damage the radio.
The XDM6820 uses one
10 amp ATM fuse located
beside the wiring connector.
3
XDM6820 OPERATION
Control Locations
3
6
8
9
10
1
2
4
5
7
22
21 20 19
18
17
16
15
14
13 12 11
Release
Tuner Scan/8
1
2
12
13
14
15
16
17
18
Power
Local/Distance/7
Preset 6/Folder Up
Preset 5/Folder Down
Preset 4
Volume
3
Band/Play/Pause
Mode/Search
4
5
Auto Store/Preset Scan/Enter
Tune/Track Down
Eject
Preset 3/Intro
6
Preset 2/Random
7
8
19 Preset 1/Repeat
20 Audio
9
Tune/Track Up
Display/0
10
11
21
22
Loudness
Mute
EQ/9
The XDM6820 allows playback of your favorite MP3 and WMA files recorded on CD-R and
CD-RW discs. Its powerful on-board DSP processor decodes the compressed audio while
maintaining near-CD sound quality. An internal SRAM buffer provides ESP (Electronic
Skip Protection) to virtually eliminate skipping and allows alphanumeric or direct track
search - even while a song is currently playing!
4
XDM6820 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.
Semi-permanent Remove trim ring and install supplied #1 x 7/32” Phillips
Faceplate Installation head screw through left side of mounting frame into faceplate.
Power On/Off Press POWER or any other button (except eject) to turn the
unit on. Inserting a disc will turn the unit on automatically.
Press POWER to turn the unit off.
Mode Press MODE to select between tuner, CD player and auxiliary
input. Modes of operation are indicated in the display.
Loudness Press LOUD to activate and deactivate the loudness contour
curve. Activating this feature will enhance the bass and
treble frequencies when listening to music at low volumes.
Volume Adjust volume using rotary encoder (00-46).
Programmable Press and hold POWER for 3 seconds to program currently
Turn-On Volume selected volume level. "P-VOL" and the current volume level
will momentarily appear in the display.
Preset EQ Curves Press EQ to select between POP, JAZZ, CLASSIC, BEAT, ROCK
and OFF (default) equalization curves. Any adjustment to the
Bass or Treble settings automatically cancels the current EQ
curve (if one is selected).
Display Press DISP to select between clock and radio frequency
(tuner mode), clock and CD track/elapsed time (CD mode), or
clock and AUX (AUX mode).
Set the Clock With the unit on, press and hold DISP until the clock begins
to flash, then release. Press TUNE
to adjust the hours
nn
and TUNE
to adjust the minutes. Press DISP
ll
momentarily to save the selected time.
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).
5
XDM6820 OPERATION
General Operation
In tuner mode, press and hold DISP then press TUNE
to select function priority display. "FREQ" will momentarily
Programmable Display
Priority
ll
appear in the display.
Note:
"FUNC" will appear in CD or AUX modes.
Radio frequency (tuner mode), CD track/elapsed time (CD
mode) or AUX (AUX mode) will be displayed by default.
Note:
When playing MP3/WMA files, the track number/elapsed
time, track name, directory name, title, artist, album, year
or comment will be displayed by default. Clock is accessed
by pressing DISP momentarily.
Press and hold DISP then press TUNE
to select time
nn
display priority. "TIME" will momentarily appear in the
display. Clock will be displayed by default. Radio frequency,
CD track/elapsed time or MP3/WMA file information is
accessed by pressing DISP momentarily.
Programs unit to display clock/no clock when unit is off.
Press and hold MODE then press PRESET 1 to select clock
priority on/off. "CLK ON" or "CLK OFF" will momentarily
appear in the display.
Programmable Clock
Priority
Press and hold for more than 2 seconds to RESET the unit
upon initial installation or if abnormal operation occurs.
The reset button is located behind the faceplate.
Reset
Press and hold AUDIO for 3 seconds to turn confirmation
beep on/off.
Confirmation Beep
Mute
Press MUTE to silence the audio. "MUTE" will flash in the
display. Press MUTE again to cancel.
6
XDM6820 OPERATION
General Operation
Audio Press AUDIO to select between Volume (default), Bass,
Treble, Balance & Fader.
Bass Press AUDIO until BAS appears
Rotate encoder left/right to adjust
( -6 minimum / +6 maximum)
Treble Press AUDIO until TRE appears
Rotate encoder left/right to adjust
( -6 minimum / +6 maximum)
Balance Press AUDIO until BAL appears
Rotate encoder left/right to adjust
(BAL L 12-BAL 00-BAL R 12)
BAL 00 represents equal balance
Fader Press AUDIO until FAD appears
Rotate encoder left/right to adjust
(FAD F 12-FAD 00-FAD R 12)
FAD 00 represents equal fader
Source Audio Memory Individual Bass and Treble settings are retained in memory
for AM, FM, CD, and AUX modes. This allows you to save
the Bass and Treble settings separately for each mode.
Example:
FM tuner mode can have Bass +3 and Treble -1 while CD
mode can have Bass +2 and Treble +2.
Note:
Any adjustment to the Bass or Treble settings automatically
cancels the current EQ curve (if one is selected).
7
XDM6820 OPERATION
Tuner Operation
Seek Tuning Press TUNE
or TUNE
next strong station.
momentarily to seek the
for more than 2 seconds,
nn
ll
ll
Manual Tuning Press TUNE
or TUNE
nn
then release. "MANUAL" will momentarily appear in the
display. Press TUNE
or TUNE
momentarily to
nn
ll
move radio frequency up or down one step at a time. Press
and hold to advance quickly. If tuning is not adjusted for 5
seconds, the unit will return to seek tuning mode (default).
"AUTO" will momentarily appear in the display.
Scan Tuning Press SCAN to preview strong stations on the current band,
pausing for 5 seconds at each. Press SCAN again to cancel.
Local/Distance Press LOC to activate local tuning for strong station reception
only. Press LOC again to cancel and resume Distance tuning
(default).
Band Press BAND to select between FM1, FM2, FM3, AM1 and AM2
bands.
Frequency Spacing Press and hold BAND then press TUNE
to select
nn
European frequency spacing. Press and hold BAND then
press TUNE to select USA frequency spacing (default).
ll
Storing and Recalling Up to 18 FM stations and 12 AM stations can be stored. To
Station Presets 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.
Note:
Function buttons 7, 8, 9 and 0 apply to MP3 and WMA
playback only.
Press AS/PS for more than 2 seconds to automatically store
the six strongest stations in the current band. Automatic
Local/Distance is activated during the initial band scan.
Automatically Store
Stations
Press AS/PS for less than 2 seconds to scan presets 1-6 on
the current band, pausing for 5 seconds at each. Press
AS/PS again to cancel.
Preset Scan
8
XDM6820 OPERATION
CD Player Operation
With the label facing up, insert a standard size CD into the
CD slot. The CD will automatically begin playback.
Insert CD
Eject CD
Press EJECT to eject the CD. The unit will change to previous
mode of operation (AM, FM, or auxiliary input). 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.
Press TRACK
Press TRACK
track. Pressing TRACK
to skip to the beginning of the next track.
to return to the beginning of the current
Track Select
ll
nn
again skips to the beginning of
nn
the previous track.
Press and hold TRACK
or reverse a track.
or TRACK
to fast forward
Fast Forward and Reverse
ll
nn
Press
Press
/
/
II to temporarily stop CD playback.
II again to resume playback.
Pause
Intro
l
l
Press INT to play the first 10 seconds of each track.
Press INT again to cancel.
Press RPT to continuously repeat selected track.
Press RPT again to cancel.
Repeat
Random
Press RDM to play all tracks in random order. Press RDM
again to cancel. Random mode is retained in memory when
selecting between tuner, CD player and auxiliary input
modes and when the unit is turned on/off.
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:
CD-R/CD-RW Compatibility
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.
9
XDM6820 OPERATION
CD Player Operation - MP3/WMA Files
When an MP3/WMA encoded disc is first inserted,
"READING" will appear in the display. Depending on the
number of files and folders, this may take several seconds.
Playing an MP3/WMA Disc
The
icon will illuminate anytime a valid MP3 encoded
MP3 Icon
WMA Icon
disc is inserted and flash in MP3 search/navigate modes.
The
icon will illuminate anytime a valid WMA encoded
disc is inserted and flash in WMA search/navigate modes.
Folder Icon
The
icon will illuminate anytime a folder is selected in
the file/folder search modes.
Displaying Information
Press DISP to select between track number/elapsed time
(default), clock, track name, directory name, title, artist,
album, year and comment.
"NO ID3 TAG" will be displayed if the MP3 file contains no
ID3 tag information.
"UNKNOWN" will be displayed if the WMA file contains no
WMA tag information.
"ROOT" will be displayed if the directory name of a root
folder is not labeled.
Character Support
Maximum character display information
• Track name – 32 character maximum
• Directory name – 32 character maximum
• *Song title – 30 character maximum
• *Artist name – 30 character maximum
• *Album name – 30 character maximum
• *Year – 4 character maximum
• *Comment – 28 character maximum
*Song title, Artist Name, Album name, Year and Comment
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
10
XDM6820 OPERATION
CD Player Operation - MP3/WMA Files
Refer to the following button function table when selecting, searching or
navigating MP3/WMA files and folders:
MP3/WMA Button Function Table
Button
SEARCH
ENTER
Preset 1
Preset 2
Preset 3
Preset 4
Preset 5
Preset 6
7
Function
Direct Select, Search and Navigate Modes
Enter/Confirm
A, B, C, 1
D, E, F, 2
G, H, I, 3
J, K, L, 4
M, N, O, 5
P, Q, R, 6
S, T, U, 7
8
V, W, X, 8
9
Y, Z, /, 9
0
-, _, +, 0
AUDIO
Rotary Encoder
MUTE
Character Shift
Character Select (A, B, C ~ 8, 9, 0)
Character Backspace
Direct Select, Search and
Navigate Modes
Press SEARCH for more than 3 seconds, to select between
the following modes:
• Direct File Select
• Alphanumeric File or Folder Search
• File or Folder Navigate
Direct File Select
Step 1
Press SEARCH for more than 3 seconds, then release.
"MP3 T " or "WMA T " will flash in the display. Use the
*
*
buttons in the above table (3 keystroke maximum input),
or the rotary encoder to enter the desired file number.
Step 2
Press ENTER to confirm the selected file number or wait for
the input cycle to time out (approximately 5 seconds).
If the file is not available, "NO FILE" will be displayed
momentarily and the current file will continue to play.
11
XDM6820 OPERATION
CD Player Operation - MP3/WMA Files
Alphanumeric File Press SEARCH for more than 3 seconds, then release.
or Folder Search Press SEARCH again, an " " will flash in the display. Use
*
Step 1 the buttons in the table on page 11 (32 character maximum
input) or the rotary encoder to enter the desired alphanu-
meric search characters. Press AUDIO to advance one
character to the right.
Step 2 Press ENTER to initiate the selected alphanumeric search.
Step 3 Turn the rotary encoder to preview the search results.
If the search returns a folder, the
icon will illuminate.
Step 4 Press ENTER to select the desired file or folder. If a folder
is selected, "/ /" will be displayed. Turn the rotary encoder to
the right to begin searching files in the folder.
Step 5 Press ENTER to select the desired file within the folder.
Note:
If the file is not available, "NO FILE" will be displayed
momentarily and the current file will continue to play.
File/Folder Navigate Press SEARCH for more than 3 seconds, then release.
Step 1 Press SEARCH again two times to navigate files/folders
on the disc. The current folder name will scroll one time
followed by available files and folders.
Step 2 Turn the rotary encoder to preview files/folders in the
current folder. If a folder is selected, the
illuminate.
icon will
Step 3 Press ENTER to select the desired file or folder. If a folder
is selected, "/ / " will be displayed. Turn the rotary encoder
to the right to begin searching files in the folder.
Step 4 Press ENTER to select the desired file within the folder.
*Folder Access When navigating folders (and "/ / " is displayed), press
(Up one level) AUDIO to access the previous level (up one level).
*Only available on MP3/WMA discs recorded with more
than one folder.
12
XDM6820 OPERATION
CD Player Operation - MP3/WMA Files
After navigating by direct select, alphanumeric search or
file/folder navigate modes, the track number and elapsed
time will be displayed by default. Press DISP momentarily to
select clock, track name, directory name, title, artist, album,
year or comment.
Navigating Note
*Folder Access
File Repeat
Press F
Press F
to select the previous folder.
to select the next folder.
*Folder access is only available on MP3/WMA discs recorded
with more than one folder.
Press RPT momentarily to continuously repeat selected file.
Press RPT again to cancel.
Press RPT for more than 2 seconds to consecutively repeat
File Repeat
all files in the current folder only. The
the display when in folder repeat mode.
Press RPT again to cancel.
icon will appear in
(Current Folder Only)
Press RDM momentarily to play all files on entire disc in
random order. Press RDM again to cancel.
Disc Random
Press RDM for more than 2 seconds to play all files in
Folder Random
current folder only in random order. The
in the display when in folder random mode.
Press RDM again to cancel.
icon will appear
Press INT momentarily to play the first 10 seconds of each
file on the entire MP3/WMA disc. Press INT again to cancel.
Disc Intro
Press INT for more than 2 seconds to play the first 10
Folder Intro
seconds of each file in the current folder only. The
will appear in the display when in folder intro mode.
Press INT again to cancel.
icon
Note:
File repeat (current folder only), folder random and folder
intro is only available on MP3/WMA discs recorded with
more than one folder.
13
XDM6820 OPERATION
CD Player Operation - MP3/WMA Files
The following types of discs/files are compatible:
Media Compatibility
• 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
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.
Playback Order
• ISO9660 level 1
• ISO9660 level 2
Compatible Recording
Formats
• 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). 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/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.
14
XDM6820 OPERATION
CD Player Operation - MP3/WMA Files
An internal buffer provides ESP (Electronic Skip Protection)
to virtually eliminate skipping.
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
32kHz ~ 48kHz
WMA
Transfer Bit rates
MP3
8kbps ~ 320kbps constant
Variable bit rates
32kbps ~ 192 kbps constant
Variable bit rates
WMA
Note:
Some files may not play or be displayed correctly,
depending on sampling rates and bit rates.
ID3 tags Version 1.x
MP3 Tag Display
This model will not display ID3 Version 2.0 or greater tags.
For best results, use the following settings when burning an
MP3 disc:
Recommended Settings
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
15
XDM6820 WARRANTY
Limited One-Year Warranty
This warranty gives you specific legal rights. You may
also have other rights which vary from state to state.
What to do?
If purchased within the USA:
1. Before you call for service, check your
operating instruction booklet. A slight adjustment
of any custom controls discussed in your
instruction booklet may save you a service call.
Dual Electronics Corp. warrants this product to the
original purchaser to be free from defects in material
and workmanship, under normal conditions, for a
period of one year from the date of the original
purchase.
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 proof of the purchase
date from the retailer to the Return Center
address listed below.
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 or
renewed product in exchange without charges,
subject to verification of the defect or malfunction and
proof of the date of purchase.
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.
During the One-Year Warranty Period: For One Year
from the date of purchase, your product will be
replaced with a new, renewed or comparable product
(whichever is deemed necessary) if it becomes
defective or inoperative. This is done without charge
to you. Replacement products are warranted for the
balance of the original warranty period.
4. DUAL will pay the return shipping charges if
the product is returned to an address within the
48 contiguous states.
Dual Electronics Corp.
Attn: Returns Center
21318 64th Ave. South
Kent, WA 98032 U.S.A.
Toll Free: 1-866-626-7863
Who is covered? This warranty is extended to the
original retail purchaser for products purchased 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: 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.
If purchased outside the USA:
Please return the unit to original place of purchase
for warranty service.
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.
16
XDM6820 OPERATION
Specifications
CD Player Signal-to-noise: >92dB
Frequency response: 10Hz-20kHz
Channel separation @ 1kHz: >65dB
D/A converter: 1 Bit
FM Tuner Tuning range: 87.5MHz-107.9MHz
Usable sensitivity: 8.5dBf
50dB quieting sensitivity: 10dBf
Stereo separation @ 1kHz: 40dB
Frequency response: 30Hz-13kHz
AM Tuner Tuning range: 530kHz-1710kHz
Usable sensitivity: 22uV
Frequency response: 30Hz-2.2kHz
General Total power output: 200 Watts Peak
Power output: 50Wx4 @ 4 ohms, 14.4 VDC
Operating voltage: 11-16 VDC, negative ground
Speaker output impedance: 4~8 ohms
Line output voltage: 2 Volts
Dimensions: 7" x 7" x 2" (178 x 178 x 51 mm)
Design and specifications subject to change without notice.
17
XDM6820 WARRANTY
Troubleshooting
Problem
Cause
Action
Yellow wire not connected or incorrect voltage Check connections for proper voltage
Unit will not turn on
(no power)
Red wire not connected or incorrect voltage
Black wire not connected
Fuse blown
(11~16VDC)
Check connection to ground
Replace fuse
Speaker wires not connected
Check connections at speakers
Unit has power
(but no sound)
One or more speaker wires touching each
other or touching chassis ground
Insulate all bare speaker wires from
each other and chassis ground
Yellow or red wire touching chassis ground
Speaker wires touching chassis ground
Incorrect fuse rating
Check for pinched wire
Check for pinched wire
Use fuse with correct rating
Unit blows fuses
Unit is not mounted correctly or backstrap is Check mounting sleeve and backstrap
not secure support
Physical defect in media (CD, CD-R or CD-RW) Check media for scratches
Excessive skipping
Disc read error
Press eject or RESET
Press eject or RESET
Press eject or RESET
Press eject or RESET
ERROR-01 appears
on display
Focus error or disc is in upside down
FAT error
ERROR-02 appears
on display
ERROR-03 appears
on display
MP3/WMA decode error
ERROR-04 appears
on display
The WMA file is copy-protected by DRM
(Digital Rights Management)
Write disc using WMA files that are not
copy-protected
PROTECT appears
on display
Selected file is not available in direct or
alphanumeric search modes
Repeat search using valid parameters
NO FILE appears
on display
The file format is not compatible
CD mechanism position out of alignment
CD transit screws still in place
Write disc using valid audio files with
.mp3 or .wma file extensions
INVALID appears
on display
Press EJECT for 3 seconds to reset
CD mechanism position
Remove 2 transit screws located on top
of the unit
Unit will not accept
a disc
18
XDM6820 OPERATION
Notes
19
Dual Electronics Corp.
21318 64th Ave. South
Kent, WA 98032
Toll Free: 1-866-626-7863
©2005 Dual Electronics Corp. All rights reserved.
Windows Media and the Windows logo are trademarks, or
registered trademarks of Microsoft Corporation in the United
States and or other countries.
NSA0205-V02
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