MXD55
INSTALLATION/OWNER’S MANUAL
AM/FM/CD Marine Receiver
MARINE
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MXD55 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 MXD55 uses one
10 amp ATM fuse located
beside the wiring connector.
3
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MXD55 OPERATION
Control Locations
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14 13
12
11
Release
Power
Mode
1
2
3
4
5
6
7
8
9
11
12
13
14
15
16
17
Bass Boost
Preset 6
Preset 5
Preset 4
Volume/Audio Adjustment
Tuner Scan
Display
Auto Store/Preset Scan
EQ
Preset 3/CD Intro
Preset 2/CD Random
Tune/Track Down
Eject
18 Preset 1/CD Repeat
19 Play/Pause/Band
10
20
Tune/Track Up
Mute
Before installation, remove trim ring and install supplied
Phillips head #1 x 7/32” screw through left side of mounting
frame into faceplate.
*Semi-permanent
Faceplate Attachment
4
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MXD55 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 PWR or any other button (except eject) to turn the unit
on. Inserting a CD will turn the unit on automatically. Press
PWR to turn the unit off.
Mode Press MODE to select between AM/FM tuner, weatherband
tuner, CD player and auxiliary input. Modes of operation are
indicated in the display.
Bass Boost Press BASS to activate and deactivate bass boost curve.
Activating this feature will enhance the bass frequencies
when listening to music at all volumes.
Volume Adjust volume using rotary encoder (00-46).
Programmable Press and hold PWR for 3 seconds to program currently
Turn-On Volume selected volume level.
Confirmation Beep Press rotary encoder for 3 seconds to turn confirmation beep
on/off.
Mute Press MUTE to silence the audio. Press MUTE again to cancel.
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 modes) or CD elapsed time/track (CD player mode).
Set the Clock With the unit on, press and hold DISP until clock begins to
flash, then release. Press TUNE
to adjust the hours and
ll
TUNE
to adjust the minutes. Press DISP momentarily to
nn
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).
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MXD55 OPERATION
General Operation
Programmable Display Press and hold DISP then press TUNE
to select function
ll
Priority priority display. "FREQ" will momentarily appear in the display.
Radio frequency (tuner modes) or CD elapsed time/track (CD
player mode) 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 or CD
elapsed time/track is accessed by pressing DISP momentarily.
Programmable Clock Programs unit to display clock/no clock when unit is off.
Priority Press and hold MODE then press PRESET 1 to turn clock
priority on/off. "ON CLOC" or "NO CLOC" will momentarily
appear in the display.
Reset 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.
Audio Press rotary encoder to select between Volume (default),
Bass, Treble, Balance & Fader.
Bass Press rotary encoder until BAS appears then rotate encoder
left/right to adjust (-6 minimum / +6 maximum).
Treble Press rotary encoder until TRE appears then rotate encoder
left/right to adjust (-6 minimum / +6 maximum).
Balance Press rotary encoder until BAL appears then rotate encoder
left/right to adjust (L12-0-R12) 00 represents equal balance.
Fader Press rotary encoder until FAD appears then rotate encoder
left/right to adjust (R12-0-F12) 00 represents equal fader.
Source Audio Memory Individual Bass and Treble settings are retained in memory
for AM, FM, Weatherband, CD, and AUX modes. This allows
you to save the Bass and Treble settings separately for each
mode. For example, FM tuner mode can have Bass +3 and
Treble -1 while CD mode can have Bass +2 and Treble +2.
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MXD55 OPERATION
AM/FM Tuner Operation
Seek Tuning
Press TUNE
next strong station.
or TUNE
momentarily to seek the
nn
ll
Manual Tuning
Press TUNE
or TUNE
for more than 2 seconds,
nn
ll
then release. "MANU" 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
Band
Press SCAN to preview strong stations on the current band,
pausing for 5 seconds at each. Press SCAN again to cancel.
Press BAND to select between FM1, FM2, FM3 and AM1,
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
Anytime frequency spacing is changed, all station presets
are erased.
Storing and Recalling
Station Presets
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 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.
Automatically
Store Stations
Press AS/PS for more than 3 seconds to automatically store
the six strongest stations in the current band. Automatic
Local/Distance is activated during the initial band scan.
Preset Scan
Press AS/PS to scan presets 1-6 on the current band,
pausing for 5 seconds at each. Press AS/PS again to cancel.
7
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MXD55 OPERATION
Weatherband Tuner Operation
Manual Tuning Press TUNE
or TUNE
momentarily to seek the
nn
ll
next weatherband station.
Direct Tuning Press preset 1-6 or BAND to directly access the 7
weatherband stations. Refer to the table below.
Weatherband Stations - Direct Tuning Table
Button
Preset 1
Preset 2
Preset 3
Preset 4
Preset 5
Preset 6
BAND
WB Frequency
162.400 MHz
162.425 MHz
162.450 MHz
162.475 MHz
162.500 MHz
162.525 MHz
162.550 MHz
LCD Display
Wb - 1
Wb - 2
Wb - 3
Wb - 4
Wb - 5
Wb - 6
Wb - 7
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MXD55 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 tuner, Weatherband tuner 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 modes and when the unit is turned on/off.
Some CD-Rs may be incompatible with this unit, depending
on media type and recording method. This model does not
support CD-RWs.
CD-R Compatibility
9
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MXD55 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.
10
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MXD55 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
Tuning range: 530kHz-1710kHz
Usable sensitivity: 22uV
AM Tuner
Frequency response: 30Hz-2.2kHz
Tuning range: 162.400MHz-162.550MHz
Wetherband Tuner
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: 2V
Dimensions: 7" x 7" x 2" (178 x 178 x 51 mm)
Design and specifications subject to change without notice.
11
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MXD55 OPERATION
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
not secure
Check mounting sleeve and backstrap
support
Excessive skipping
Physical defect in media (CD or CD-R)
Load/Eject operation error
Focus adjustment error
Check media for scratches
Press eject or RESET
Clean or replace media
Clean or replace media
ER02 appears on display
ER03 appears on display
ER04 appears on display Tracking auto adjustment error
Sled operation error
ER06 appears on display
ER07 appears on display
ER08 appears on display
ER09 appears on display
Press eject or RESET
Press eject or RESET
Press eject or RESET
Clean or replace media
Focus error or disc is in upside down
CLV (PLL) operation error
TOC data read error
Dual Electronics Corp.
21318 64th Ave. South
Kent, WA 98032
Toll Free: 1-866-626-7863
©2005 Dual Electronics Corp. All rights reserved.
NSA0405-V01
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