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© B64-3956-00/00 (MW)

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2 | KDC-MP5539U/KDC-MP5039U/KDC-MP4039
Before use
Basic Operation
General functions
Tuner functions
Disc & Audio file play functions
General Operation
Audio Control
Audio Setup
Speaker Setting
Display Switching
Tuner Operation
Direct Access Tuning
Frequency Step Setting
Music disc/Audio file Operation
Play Functions of Disc Changer
Direct Music Search
Direct Disc Search
List Select
iPod Select
Track Select
Menu Operation
Menu System
Security Code
Manual Clock Adjustment
Auxiliary Input Display Setting
Demonstration mode Setting
Basic Operations of remote control 12
Accessories/ Installation Procedure 15
Connecting Wires to Terminals
Troubleshooting Guide
iPod is a trademark of Apple Inc., registered in the U.S.
and other countries.
The "AAC" logo is trademark of Dolby Laboratories.
Playing AAC, MP3, and WMA data
This document refers to AAC, MP3, and WMA
data stored in iPod, USB device, and CD-R/RW as
"audio files." Refer to the section on "Audio Files" to
control these data. See <About Audio file> (page
13) for details.
Panel illustrations used in this
The control panel for KDC-MP5539U is used to
describe operations in this document.

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Before use
To prevent injury or fire, take the following
· To prevent a short circuit, never put or leave any
metallic objects (such as coins or metal tools) inside
the unit.
Before using this unit for the first time
This unit is initially set on the Demonstration mode.
When using this unit for the first time, cancel the
<Demonstration mode Setting> (page 11).
How to reset your unit
· If this unit or the connected unit (disc auto changer,
etc.) fails to operate properly, press the Reset button.
The unit returns to factory settings when the Reset
button is pressed.
Reset button
Cleaning the Unit
If the faceplate of this unit is stained, wipe it with a
dry soft cloth such as a silicon cloth.
If the faceplate is stained badly, wipe the stain off with
a cloth moistened with neutral cleaner, then wipe it
again with a clean soft dry cloth.
· Applying spray cleaner directly to the unit may affect its
mechanical parts. Wiping the faceplate with a hard cloth or
using a volatile liquid such as thinner or alcohol may scratch
the surface or erases characters.
Cleaning the Faceplate Terminals
If the terminals on the unit or faceplate get dirty, wipe
them with a clean soft dry cloth.
Lens Fogging
When you turn on the car heater in cold weather,
dew or condensation may form on the lens in the
CD player of the unit. Called lens fogging, this
condensation on the lens may not allow CDs to play.
In such a situation, remove the disc and wait for the
condensation to evaporate. If the unit still does not
operate normally after a while, consult your Kenwood
· If you experience problems during installation,
consult your Kenwood dealer.
· When you purchase optional accessories, check with
your Kenwood dealer to make sure that they work
with your model and in your area.
· The characters which can be displayed by this unit
are A-Z 0-9 @ " ` ` % & * + ­ = , . / \ < > [ ] ( ) : ; ^ - { } |
~ .
· The illustrations of the display and the panel
appearing in this manual are examples used to
explain more clearly how the controls are used.
Therefore, what appears on the display in the
illustrations may differ from what appears on the
display on the actual equipment, and some of the
illustrations on the display may be inapplicable.
Handling CDs
· Do not touch the recording surface of the CD.
· Do not stick tape etc. on the CD, or use a CD with
tape stuck on it.
· Do not use disc type accessories.
· Clean from the center of the disc and move
· When removing CDs from this unit, pull them out
· If the CD center hole or outside rim has burrs,
use the CD only after removing the burrs with a
ballpoint pen etc.
CDs that cannot be used
· CDs that are not round cannot be used.
· CDs with coloring on the recording surface or CDs
that are dirty cannot be used.
· This unit can only play the CDs with
This unit may not correctly play discs which do not
have the mark.
· You cannot play a CD-R or CD-RW that has not been
finalized. (For the finalization process refer to your
CD-R/CD-RW writing software, and your CD-R/CD-
RW recorder instruction manual.)

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4 | KDC-MP5539U/KDC-MP5039U/KDC-MP4039
General functions
Power/Source Select button
Turns on the power.
When the power is on, the source switches between
Tuner ("TUNER") , USB or iPod ("USB" or "iPod"),
CD ("CD") , Auxiliary input ("AUX"), and Standby
("STANDBY") each time this button is pressed.
Press at least 1 second to turn off the power.
· When the power is ON, the <Security Code> (page 10) is
displayed as "CODE ON" or "CODE OFF".
· For whether USB devices and iPod can be connected, refer
to <About Audio file> (page 13).
· When an optional accessory is connected, the source name
for each device appears.
· When connection of the iPod is recognized, the source
display changes from "USB" to "iPod".
Volume control
Control knob
Turn the knob to adjust the volume.
Faceplate release
Releases the faceplate lock so that it can be removed.
Refer to the following diagram when reattaching the
· The faceplate is a precision piece of equipment and can be
damaged by shocks or jolts.
· Keep the faceplate in its faceplate case while detached.
· Do not place the faceplate (and the faceplate case) in areas
exposed to direct sunlight, excessive heat or humidity. Also
avoid places with too much dust or the possibility of water
· To prevent deterioration, do not touch the terminals of the
unit or faceplate with your fingers.
Auxiliary input
Auxiliary input
Used to connect a portable audio device with mini-
plug cable (3.5 ø).
· Use the mini-plug cable (stereo) which does not have any
Muting volume upon reception of phone call
When there is a call, "CALL" is displayed and the audio
system is paused.
When the call ends, "CALL" disappears and the audio
system comes back on.
The audio system comes back on when [SRC] is
pressed during a call.
Subwoofer output
Control knob
Switches between ON ("SUBWOOFER ON") and OFF
("SUBWOOFER OFF") each time pushing toward down
for at least 2 seconds.
Tuner functions
Band select
Control knob
Switches between FM1, FM2, and FM3 each time
pushing toward up.
Switches to AM when pushing toward down.
Control knob
Changes the frequency when pushing toward left or
[1] [2] [3]
[5] [6]
USB Terminal
Control knob
Disc slot
Auxiliary input
[ ]
Basic Operation
Display Disc slot
Auxiliary input
Control knob
USB Terminal

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· During reception of stereo stations the "ST" indicator is ON.
Tuning mode select
Switches as follows each time this button is pressed.
Tuning mode
Auto seek
Automatic search for a station.
Preset station seek
Search in order of the stations in the
Preset memory.
"SEEK : MANUAL" Normal manual tuning control.
Preset memory
[1] - [6]
Memorizes the station selected when pressing for at
least 2 seconds.
Auto memory entry
Memorizes six stations with good reception
automatically when pressed for at least 2 seconds.
Preset tuning
[1] - [6]
Recalls the memorized station.
Disc & Audio file play functions
Disc play
Disc slot
Starts playing when a disc is inserted.
When a CD is inserted, the "IN" indicator is ON.
· 3 inch (8 cm) CD cannot be used. Attempt to insert using
an adapter can cause malfunction.
USB device play (KDC-MP5539U/MP5039U)
USB Terminal
Used to connect the USB device to the USB cable
(optional accessory) which is connected to the USB
When the USB device is connected, the "USB"
indicator is ON.
· For the playable audio file, media, and devices, refer to
<About Audio file> (page 13).
Pause and play
Switches between pause and play each time this
button is pressed.
Disc ejection
· You can eject the disc for 10 minutes after switching off the
USB device removing
Press this button for 2 seconds or longer to select
the remove mode, and the remove the USB device.
During the remove mode, "USB REMOVE" is displayed.
Music search
Control knob
Changes the music when pushing toward left or right.
Fast reverses or forwards the music while keeping
pushing toward left or right. (No sound is output
while playing audio file.)
Folder search
Control knob
Changes the folder containing the audio file when
pushing toward up or down.
Select mode
After pressing this button, you can quickly search
songs with the control knob. See <List Select> (page
9), <iPod Select> (page 9) for details.
Track/ File/ Folder repeat play
Switches between Track Repeat ("TRAC REP ON") and
OFF ("REP OFF") when pressed while playing a CD.
Switches between File Repeat ("FILE REP ON"), Folder
Repeat ("FOLD REP ON"), and OFF ("REP OFF") when
pressed while playing an audio file.
· The folder repeat operation cannot be performed while
iPod is playing.
Scan play
Successively plays the intro of the music in the disc or
When Scan Play is turned on, "TRAC SCAN ON"/ "FILE
SCAN ON" is displayed.
· The Scan paly operation cannot be performed while iPod is
Random play
Randomly plays the music in the disc or folder.
When Random Play is turned on, "DISC RDM ON"/
"FOLD RDM ON" is displayed.
Text/Title scroll
Control knob
Scrolls the CD and audio file text display when
pushing toward up for at least 2 seconds.
: Indicates the button etc. to operate.