Kenwood Car Stereo System KDC 3031A User Manual

KDC-W4531  
KDC-W4031  
KDC-W431G  
KDC-W409  
KDC-3031A  
KDC-3031G  
KDC-309A  
KDC-309G  
CD-RECEIVER  
INSTRUCTION MANUAL  
© B64-2932-00/00 (EW/EN/E2W/E2N)  
 
Safety precautions  
About CD players/disc changers  
connected to this unit  
KENWOOD disc changers/ CD players released in  
1998 or later can be connected to this unit.  
Refer to the catalog or consult your Kenwood  
dealer for connectable models of disc changers/  
CD players.  
2WARNING  
To prevent injury or fire, take the  
following precautions:  
• To prevent a short circuit, never put or leave any  
metallic objects (such as coins or metal tools)  
inside the unit.  
Note that any KENWOOD disc changers/ CD players  
released in 1997 or earlier and disc changers made  
by other makers cannot be connected to this unit.  
Unsupported connection may result in damage.  
Setting the "O-N" Switch to the "N" position for the  
applicable KENWOOD disc changers/ CD players.  
The functions that can be used and the information  
that can be displayed will differ depending on the  
models being connected.  
2CAUTION  
To prevent damage to the machine, take  
the following precautions:  
• Make sure to ground the unit to a negative 12V  
DC power supply.  
• Do not install the unit in a spot exposed to direct  
sunlight or excessive heat or humidity. Also avoid  
places with too much dust or the possibility of  
water splashing.  
• Do not set the removed faceplate or 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 splashing.  
You can damage both your unit and the CD changer if  
you connect them incorrectly.  
Lens Fogging  
Right after 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, CDs may be impossible 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 dealer.  
• To prevent deterioration, do not touch the  
terminals of the unit or faceplate with your  
fingers.  
• Do not subject the faceplate to excessive shock,  
as it is a piece of precision equipment.  
• When replacing a fuse, only use a new one with  
the prescribed rating. Using a fuse with the wrong  
rating may cause your unit to malfunction.  
• Do not use your own screws. Use only the screws  
provided. If you use the wrong screws, you could  
damage the unit.  
Do Not Load 8 cm (3 in.) CDs in the CD  
slot  
If you try to load a 8 cm (3 in.) CD with its adapter  
into the unit, the adapter might separate from the  
CD and damage the unit.  
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English  
 
3
Notes  
• If you experience problems during installation,  
consult your Kenwood dealer.  
• If the unit fails to operate properly, press the Reset  
button. The unit returns to factory settings when  
the Reset button is pressed.  
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 23).  
• Press the reset button if the disc auto changer fails  
to operate correctly. Normal operation should be  
restored.  
About DAB Tuner control  
(KDC-W4531)  
Refer to A group on the Instruction manual of DAB  
Tuner KTC-9090DAB (optional accessory) for the  
control method of DAB Tuner function.  
SCRL  
However, the following control methods of the  
function for this unit may be differed from the  
Instruction manual; therefore, refer to the following  
supplemental instruction.  
+
VOL  
AUD  
PTY  
DISP  
SET UP  
Q
MENU  
OFF  
SCAN  
RDM  
REP  
-
TI  
AME  
<Auto Ensemble Memory Entry>  
1. Select the preset band for Auto Ensemble  
Memory Entry.  
Reset button  
2. Press the [AME] button for at least 2 seconds.  
Open Auto Ensemble Memory Entry.  
After storing in the memory finishes, the  
number of the pre-set buttons and the  
ensemble label are displayed.  
<Searching by programme type and language>  
and <Languages to be displayed>  
At the operation to press [DISP] button, press [TI]  
button.  
<Automatic Switching DAB priority>  
• 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 represent  
something impossible in actual operation.  
This function cannot be used.  
This Product is not installed by the manufacturer  
of a vehicle on the production line, nor by the  
professional importer of a vehicle into an EU  
Member State.  
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 neutral detergent off.  
The marking of products using lasers  
(Except for some areas)  
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.  
CLASS 1  
LASER PRODUCT  
The label is attached to the chassis/case and says  
that the component uses laser beams that have  
been classified as Class 1. It means that the unit  
is utilizing laser beams that are of a weaker class.  
There is no danger of hazardous radiation outside  
the unit.  
Cleaning the Faceplate Terminals  
If the terminals on the unit or faceplate get dirty,  
wipe them with a dry, soft cloth.  
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4
English  
 
About CDs  
Handling CDs  
• Don’t touch the recording surface of the CD.  
Removing CDs  
When removing CDs from this unit pull them out  
horizontally.  
CDs that can’t be used  
• CDs that aren’t round can’t be used.  
• CD-R and CD-RW are easier to damage than a  
normal music CD. Use a CD-R or a CD-RW after  
reading the caution items on the package etc.  
• Don’t stick tape etc. on the CD.  
Also, don’t use a CD with tape stuck on it.  
• CDs with coloring on the recording surface or that  
are dirty can’t be used.  
• This unit can only play the CDs with  
When using a new CD  
If the CD center hole or outside rim has burrs, use it  
after removing them with a ball pen etc.  
.
It may not correctly play discs which do not have  
the mark.  
• A CD-R or CD-RW that hasn’t been finalized can’t  
be played. (For the finalization process refer to  
your CD-R/CD-RW writing software, and your CD-  
R/CD-RW recorder instruction manual.)  
Burrs  
Burrs  
CD storage  
• Don’t place them in direct sunlight (On the seat  
or dashboard etc.) and where the temperature is  
high.  
• Store CDs in their cases.  
CD accessories  
Don’t use disc type accessories.  
CD cleaning  
Clean from the center of the disc and move  
outward.  
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5
About MP3 and WMA  
The playable MP3/WMA file (hereafter called  
Audio file) and the media format has the following  
limitation. The Audio file, which is out of the  
specification, may not able to be played normally,  
or the file and folder names may not be displayed  
correctly.  
The maximum number of characters for  
this unit  
File/Folder name: 64 (Joliet: 32) characters  
ID3 Tag/Contents property (WMA): 30 characters  
File/Folder name is the number of the characters  
including the extensions  
ID3 Tag can only display the tag of Ver1.X.  
Playable Audio file  
MP3, WMA: KDC-W4531/W4031/W409/W431G  
Limitation of structure for the file and the  
folder  
Attach the correct extension for the Audio file  
(MP3: ".MP3", WMA: ".WMA")  
Do not attach the extensions to the other files besides  
the Audio file. If it is attached, the file, which is not the  
Audio file, will be played and outputs the loud noise, and  
then the speaker will be damaged.  
• Maximum number of directory levels: 8  
• Maximum number of folders: 50  
• Maximum number of files per folder: 255  
• Maximum number of files and folders: 512  
The files with copy protection cannot be played.  
Playing order of the Audio file  
The Audio file is played in the order which is written  
by writing soft. You may be able to set the playing  
order by writing the play sequence numbers such  
as "01" to "99" at the beginning of the file name.  
Playable MP3 file  
• MPEG 1/2 Audio Layer 3 file  
• Transfer bit rate: 8-320 kbps  
• Sampling frequency  
Example  
: 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48 kHz  
0
¡
: Folder  
: Audio file  
CD  
(1)  
Playable WMA file  
• The file in accordance with Windows Media Audio  
(Except for the file for Windows Media Player 9 or  
after which applies the new functions)  
¡!  
2
¡"  
3
• Transfer bit rate: 48-192 kbps  
• Sampling frequency: 32, 44.1, 48 kHz  
¡#  
¡$  
Playable media  
• CD-ROM, CD-R, CD-RW (CD-RW with quick format  
cannot be used.)  
4
¡%  
• Playing order after ¡! play  
¡"¡#¡$¡%...  
When recording to the media up to the maximum  
capacity at once, the writing soft is set to "Disc at once".  
• Forward file search during ¡# play (Push the  
Control knob to [¢])  
¡$  
Playable disc format  
• ISO 9660 Level 1/2  
• Joliet  
• Forward folder search during ¡" play (Push the  
Control knob to [FM])  
• Romeo  
• Long file name.  
: 34...  
• When it is set to directory 4, skip to the folder  
before the same level by folder select (Push the  
Control knob to [4])  
: 2  
• When it is set to directory 3, makes the level up  
by folder select (Push the Control knob to [AM])  
: 2  
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6
English  
 
General features  
VOL  
Release button  
Control knob  
SCRL  
+
VOL  
AUD  
SET UP  
PTY  
DISP  
Q
MENU  
OFF  
SCAN  
RDM  
REP  
ATT  
-
DIM  
TI  
AME  
ATT/DIM  
Q
SRC  
LOUD indicator  
Clock display  
ATT indicator  
The time until full power OFF can be set in <Power  
OFF Timer> (page 23).  
Power  
Turning ON the Power  
Press the [SRC] button.  
Turning OFF the Power  
Press the [SRC] button for at least 1 second.  
Volume  
Increasing Volume  
Turn the [VOL] knob clockwise.  
Decreasing Volume  
Turn the [VOL] knob counterclockwise.  
Selecting the Source  
Press the [SRC] button.  
Source required  
Tuner  
CD  
Display  
"TUNER"  
"CD"  
Attenuator  
Turning the volume down quickly.  
External disc (Optional accessory)  
Auxiliary input (Optional accessory)  
Standby (Illumination only mode)  
"CD CH"  
"AUX EXT"  
"STANDBY"  
Press the [ATT] button.  
Each time the button is pressed, the Attenuator  
turns ON and OFF.  
When it’s ON, the "ATT" indicator blinks.  
This unit automatically turns full power OFF after 20  
minutes lapses in Standby mode in order to save the  
vehicles battery.  
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English  
7
 
General features  
System Q  
5 Exit Audio Control mode  
Press any button.  
Press the button which is not [VOL] knob and  
[ATT] button.  
You can recall the best sound setting preset for  
different types of music.  
1 Select the source to set  
Press the [SRC] button.  
2 Select the Sound type  
Press the [Q] button.  
Each time the button is pressed, the sound  
setting switches.  
Audio Setup  
Setting the Sound system, such as Volume offset  
and Loudness.  
Sound setting  
Natural  
Rock  
Pops  
Easy  
Display  
"NATURAL"  
"ROCK"  
"POPS"  
1 Select the source for adjustment  
Press the [SRC] button.  
2 Enter Audio Setup mode  
Press the [VOL] knob for at least 1 second.  
"EASY"  
Top 40  
Jazz  
"TOP40"  
"JAZZ"  
3 Select the Audio Setup item for adjustment  
Press the [VOL] knob.  
Each time the knob is pressed, the items that can  
be adjusted switch as shown below.  
When the System Q setting is changed, the Bass,  
Middle, and Treble set in audio control replace the  
System Q values.  
4 Adjust the Audio setup item  
Turn the [VOL] knob.  
"USER" : The values set on the <Audio Control> (page  
8).  
Each setting value is changed with the <Speaker  
Setting> (page 8).  
Adjustment Item Display  
Range  
–8 —  
ON/OFF  
Volume offset  
Loudness  
"V-OFF"  
"LOUD"  
0
First, select the speaker type with the Speaker setting.  
Volume offset: Each source’s volume can be set as a  
difference from the basic volume.  
Loudness: Compensating for low and high tones  
during low volume.  
Audio Control  
1 Select the source for adjustment  
Press the [SRC] button.  
When it's ON, "LOUD" indicator is ON.  
5 Exit Audio Setup mode  
Press the [VOL] knob for at least 1 second.  
2 Enter Audio Control mode  
Press the [VOL] knob.  
3 Select the Audio item for adjustment  
Press the [VOL] knob.  
Each time the knob is pressed, the items that can  
be adjusted switch as shown below.  
Speaker Setting  
Fine-tuning so that the System Q value is optimal  
when setting the speaker type.  
4 Adjust the Audio item  
Turn the [VOL] knob.  
1 Enter Standby  
Press the [SRC] button.  
Select the "STANDBY" display.  
Adjustment Item Display  
Range  
Bass level  
Middle level  
Treble level  
Balance  
"BAS L"  
"MID L"  
"TRE L"  
"BAL"  
–8 — +8  
–8 — +8  
–8 — +8  
Left 15 — Right 15  
Rear 15 — Front 15  
2 Enter Speaker Setting mode  
Press the [VOL] knob.  
Fader  
"FAD"  
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8
English  
 
In CD & External disc source (KDC-W4531/  
W4031/W409/W431G)  
3 Select the Speaker type  
Turn the [VOL] knob.  
Each time the knob is turned, the setting  
switches as shown below.  
Information  
Disc title  
Track title  
Track number & Play time  
Clock  
Display  
"D-TITLE"  
"T-TITLE"  
"P-TIME"  
"CLOCK"  
Speaker type  
OFF  
For 5 & 4 in. speaker  
For 6x9 &6 in. speaker  
For the OEM speaker  
Display  
"SP OFF"  
"SP 5/4"  
"SP 6x9/6"  
"SP OEM"  
• External disc source: KDC-W4531  
In Audio file source (KDC-W4531/W4031/  
W409/W431G)  
4 Exit Speaker Setting mode  
Press the [VOL] knob.  
Information  
Display  
Song title & Artist name  
"TITLE"  
Album name (MP3 only) & Artist name "ALBUM"  
Folder name  
File name  
"FOLDER"  
"FILE"  
Switching Display  
Track number & Play time  
Clock  
"P-TIME"  
"CLOCK"  
Switching the information displayed.  
1 Enter Switching Display mode  
Press the Control knob for at least 1 second.  
"DISP SEL" is displayed.  
In Auxiliary input source  
Information  
Auxiliary input name  
Clock  
Display  
"SRC NAME"  
"CLOCK"  
2 Select the Display item  
Push the Control knob to[4] or [¢].  
In Tuner source (KDC-W431G)  
3 Exit Switching Display mode  
Information  
Frequency  
Clock  
Display  
"FREQ"  
"CLOCK"  
Press the Control knob.  
If the Disc title, Track title, Song title & Artist name, or  
Album name & Artist name is selected when the disc  
which does not have Disc title, Track title, Song title,  
Album name, or Artist name is played, track number  
and play time are displayed.  
In Tuner source  
Information  
Display  
"FREQ"(MW/LW),  
"FREQ/PS"(FM)  
Program Service name or Frequency  
Radio text, Program Service name or "R-TEXT"(FM)  
Frequency  
Clock  
"CLOCK"  
Dimmer Control  
You can change the unit's display to dimmer.  
The frequency is displayed during Program  
Service name reception  
Press the Control knob for at least 1 second.  
The frequency for the RDS station will be  
displayed for 5 seconds instead of the Program  
Service name.  
Press the [DIM] button for at least 1 second.  
Each time the button is pressed for 1 second, the  
Dimmer contol turns ON and OFF.  
In CD source (KDC-3031A/3031G/309A/309G)  
Information  
Track number & Play time  
Clock  
Display  
"P-TIME"  
"CLOCK"  
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9
General features  
Theft Deterrent Faceplate  
TEL Mute  
The faceplate of the unit can be detached and  
taken with you, helping to deter theft.  
The audio system automatically mutes when a  
call comes in.  
Removing the Faceplate  
Press the Release button.  
The faceplate is unlocked, allowing you to detach  
it.  
When a call comes in  
"CALL" is displayed.  
The audio system pauses.  
Listening to the audio during a call  
Press the [SRC] button.  
The "CALL" display disappears and the audio  
system comes back ON.  
The faceplate is a precision piece of equipment and  
can be damaged by shocks or jolts. For that reason,  
keep the faceplate in its special storage case while  
detached.  
Do not expose the faceplate or its storage case to  
direct sunlight or excessive heat or humidity. Also  
avoid places with too much dust or the possibility of  
water splashing.  
When the call ends  
Hang up the phone.  
The "CALL" display disappears and the audio  
system comes back ON.  
Reattaching the Faceplate  
1 Align the projections on the unit with the  
grooves on the faceplate.  
Projections  
Grooves  
2 Push the faceplate in until it clicks.  
The faceplate is locked in place, allowing you to  
use the unit.  
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10  
English  
 
Tuner features  
SCRL  
+
VOL  
AUD  
SET UP  
PTY  
DISP  
Q
MENU  
OFF  
SCAN  
RDM  
REP  
ATT  
-
DIM  
AUTO  
AME  
AUTO/ Control  
knob  
SRC  
1 - 6  
AME  
ST indicator  
Band display  
Frequency display Preset station number  
Function of the KDC-W431G  
Tuning  
Tuning Mode  
Selecting the station.  
Choose the tuning mode.  
1 Select tuner source  
Press the [AUTO] button.  
Each time the button is pressed, the Tuning  
mode switches as shown below.  
Press the [SRC] button.  
Select the "TUNER" display.  
2 Select the band  
Tuning mode  
Display  
Operation  
Automatic search for a station.  
Search in order of the stations  
in the Preset memory.  
Push the Control knob to [FM] or [AM].  
Each time the knob is pushed to [FM], it switches  
between the FM1, FM2, and FM3 bands.  
Auto seek  
"AUTO 1"  
Preset station seek "AUTO 2"  
Manual  
"MANUAL" Normal manual tuning control.  
3 Tune up or down band  
Push the Control knob to [4] or [¢].  
During reception of stereo stations the "ST" indicator  
is ON.  
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11  
Tuner features  
Station Preset Memory  
Putting the station in the memory.  
1 Select the band  
Push the Control knob to [FM] or [AM].  
2 Select the frequency to put in the memory  
Push the Control knob to [4] or [¢].  
3 Put the frequency in the memory  
Press the desired [1] — [6] button for at least  
2 seconds.  
The preset number display blinks 1 time.  
On each band, 1 station can be put in the  
memory on each [1] — [6] button.  
Auto Memory Entry  
Putting stations with good reception in the  
memory automatically.  
1 Select the band for Auto Memory Entry  
Push the Control knob to [FM] or [AM].  
2 Open Auto Memory Entry  
Press the [AME] button for at least 2 seconds.  
When 6 stations that can be received are put in  
the memory Auto Memory Entry closes.  
When the <AF (Alternative Frequency)> (page 22) is  
ON, only RDS stations are put in the memory.  
When Auto Memory Entry is done in the FM2 band,  
the RDS stations preset in the FM1 band aren’t put in  
the memory.  
Likewise, when it is done in the FM3 band, RDS  
stations preset in FM1 or FM2 aren’t put in the  
memory.  
Preset Tuning  
Calling up the stations in the memory.  
1 Select the band  
Push the Control knob to [FM] or [AM].  
2 Call up the station  
Press the desired [1] — [6] button.  
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12  
English  
 
Function of the KDC-W4531/W4031/W409/3031A/3031G/309A/309G  
RDS features  
SCRL  
+
VOL  
AUD  
SET UP  
PTY  
DISP  
Q
MENU  
OFF  
SCAN  
RDM  
REP  
ATT  
DIM  
-
TI  
AME  
TI  
Control  
knob  
SRC  
1 - 6  
PTY indicator  
TI indicator  
Traffic Information  
Switching to traffic information automatically  
when a traffic bulletin starts even when you aren’t  
listening to the radio.  
Traffic information station can be switched when it  
is on the Tuner Source or switched from the Tuner  
Source during the reception of the Traffic bulletin.  
Press the [TI] button.  
Each time the button is pressed, the Traffic  
information function turns ON and OFF.  
When it’s ON, "TI" indicator is ON.  
Radio Text Scroll  
When a traffic information station isn’t being  
received the "TI" indicator blinks.  
When a traffic bulletin starts, "TRAFFIC" is  
displayed it and it switches to traffic information.  
Scrolling the displayed radio text.  
Hold down on [FM] of the Control knob for at  
least 1 second.  
During reception of an AM station when the Traffic  
Information function is turned ON, it switches to an  
FM station.  
During reception of traffic information the adjusted  
volume is automatically remembered, and the next  
time it switches to traffic information it’s automatically  
the remembered volume.  
Receiving other traffic information stations  
Push the Control knob to [4] or [¢].  
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13  
Function of the KDC-W4531/W4031/W409/3031A/3031G/309A/309G  
RDS features  
PTY (Program Type)  
Selecting the Program Type and searching for a  
Speech and Music include the Program type shown  
station.  
below.  
Music: No.11 16, 25 29  
Speech: No.2 10, 17 24, 30  
The Program Type can be put in the [1] — [6] button  
memory and called up quickly. Refer to the <Program  
Type preset> (page 14).  
The display language can be changed. Refer to  
<Changing Language for PTY Function> (page 15).  
1 Enter PTY mode  
Press the Control knob.  
During PTY mode the "PTY" indicator is ON.  
This function can’t be used during a traffic bulletin or  
AM reception.  
3 Search for the selected Program Type  
station  
Push the Control knob to [4] or [¢].  
When you want to search for other stations, push  
[4] or [¢] of the Control knob again.  
2 Select the Program Type  
Push the Control knob to [FM] or [AM].  
Each time the knob is pushed, the Program Type  
switches as shown below.  
No.  
1.  
Program Type  
Speech  
Display  
"SPEECH"  
"NEWS"  
"AFFAIRS"  
"INFO"  
"SPORT"  
When the selected Program Type isn’t found, "NO PTY"  
is displayed. Select another Program Type.  
2.  
News  
3.  
4.  
5.  
Current Affairs  
Information  
Sport  
4 Exit PTY mode  
Press the Control knob.  
6.  
7.  
8.  
9.  
Education  
Drama  
Culture  
Science  
Varied  
Pop Music  
Rock Music  
Easy Listening Music  
Light Classical  
Serious Classical  
Other Music  
Weather  
"EDUCATE"  
"DRAMA"  
"CULTURE"  
"SCIENCE"  
"VARIED"  
"POP M"  
"ROCK M"  
"EASY M"  
"LIGHT M"  
"CLASSICS"  
"OTHER M"  
"WEATHER"  
"FINANCE"  
"CHILDREN"  
"SOCIAL"  
"RELIGION"  
"PHONE IN"  
"TRAVEL"  
"LEISURE"  
"JAZZ"  
"COUNTRY"  
"NATION M"  
"OLDIES"  
Program Type preset  
10.  
11.  
12.  
13.  
14.  
15.  
16.  
17.  
18.  
19.  
20.  
21.  
22.  
23.  
24.  
25.  
26.  
27.  
28.  
29.  
30.  
31  
Putting the Program Type in the Preset button  
memory and calling it up quickly.  
Presetting the Program Type  
1 Select the Program Type to preset  
Refer to <PTY (Program Type)> (page 14).  
2 Preset the Program Type  
Press the desired [1] [6] button for at least  
2 seconds.  
Finance  
Children’s programs  
Social Affairs  
Religion  
Phone In  
Travel  
Calling up the preset Program Type  
1 Enter PTY mode  
Refer to <PTY (Program Type)> (page 14).  
Leisure  
2 Call up the Program Type  
Press the desired [1] [6] button.  
Jazz Music  
Country Music  
National Music  
Oldies Music  
Folk Music  
Documentary  
Music  
"FOLK M"  
"DOCUMENT"  
"MUSIC"  
|
14  
English  
 
Changing Language for PTY  
Function  
Selecting the Program Type display language.  
1 Enter PTY mode  
Refer to <PTY (Program Type)> (page 14).  
2 Enter Changing Language mode  
Press the [TI] button.  
3 Select the language  
Push the Control knob to [FM] or [AM].  
Each time the knob is pushed, the language  
switches as shown below.  
Language  
English  
French  
Display  
"ENGLISH"  
"FRENCH"  
"GERMAN"  
German  
4 Exit Changing Language mode  
Press the [TI] button.  
|
English  
 
15  
CD/Audio file/External disc control features  
0
SCRL  
+
VOL  
AUD  
SET UP  
PTY  
DISP  
Q
MENU  
OFF  
SCAN  
RDM  
REP  
F.SEL  
M.RDM  
ATT  
DIM  
-
TI  
AME  
SCAN RDM/ REP F.SEL M.RDM  
3
Control  
knob  
SRC  
Disc number  
IN indicator  
Track number  
Track time  
Function of the KDC-W4531  
Playing CD & Audio file  
Playing External Disc  
When a disc is inserted  
Press the [SRC] button.  
Select the "CD" display.  
Playing discs set in the optional accessory disc  
player connected to this unit.  
Press the [SRC] button.  
Select the display for the disc player you want.  
Display examples:  
When a CD is inserted, the "IN" indicator is ON.  
Pause and play  
Display  
"CD CH"  
"MD CH"  
Disc player  
CD changer  
MD changer  
Press the control knob.  
Each time the knob is pressed, it pauses and  
plays.  
Pause and play  
Eject the CD  
Press the Control knob.  
Each time the knob is pressed, it pauses and  
plays.  
Press the [0] button.  
Refer to <Playable Audio file> (page6) for the Audio  
file by models which can be played.  
Disc 10 is displayed as "0".  
The functions that can be used and the information  
that can be displayed will differ depending on the  
external disc players being connected.  
|
16  
English  
 
Fast Forwarding and Reversing  
Scan Play  
Playing the first part of each song on the disc you  
are listening to and searching for the song you  
want to listen to.  
Fast Forwarding  
Hold down on [¢] of the Control knob.  
Release your finger to play the disc at that point.  
1 Start Scan Play  
Reversing  
Press the [SCAN] button.  
"TRAC SCN" (CD), "FILE SCN" (Audio file) is  
displayed.  
Hold down on [4] of the Control knob.  
Release your finger to play the disc at that point.  
2 Release it when the song you want to listen  
to is played  
The sound is not output while the Audio file is played.  
Press the [SCAN] button.  
Track/File Search  
Searching for a song on the disc or in the Audio  
file folder.  
Random Play  
Playing all the songs on the disc in random order.  
Push the Control knob to [4] or [¢].  
Press the [RDM] button.  
Each time the button is pressed, Random Play  
turns ON and OFF.  
Function of disc changer/ Audio file  
When it’s ON, "DISC RDM" (CD), "FOLD RDM"  
(Audio file) is displayed.  
Disc Search/Folder Search  
Selecting the disc set in the Disc changer or the  
folder recorded on the Audio file media.  
When the Control knob is pushed to [¢], the next  
song select starts.  
Push the Control knob to [AM] or [FM].  
Function of disc changer  
Track/File/Disc/Folder Repeat  
Magazine Random Play  
Replaying the song, disc in the Disc changer or  
Audio file folder you’re listening to.  
Play the songs on all the discs in the disc changer  
in random order.  
Press the [REP] button.  
Each time the button is pressed, the Repeat Play  
switches as shown below.  
Press the [M.RDM] button.  
Each time the button is pressed, the Magazine  
Random Play turns ON and OFF.  
When it’s ON, "MGZN RDM" is displayed.  
In CD & External disc source  
Repeat play  
Track Repeat  
Disc Repeat (In Disc Changer)  
OFF  
Display  
"TRAC REP"  
"DISC REP"  
"REP OFF"  
When the Control knob is pushed to [¢], the next  
song select starts.  
In Audio file source  
Repeat play  
File Repeat  
Folder Repeat  
OFF  
Display  
"FILE REP"  
"FOLD REP"  
"REP OFF"  
|
English  
 
17  
CD/Audio file/External disc control features  
Function of the KDC-W4531/W4031/W409/W431G  
Function of Audio file  
Folder Select  
Quickly selecting the folder you want to listen to.  
1 Enter Folder Select mode  
Press the [F.SEL] button.  
"F-SELECT" is displayed.  
During Select mode the folder information is  
displayed as shown below.  
Folder name display  
Displays the current folder name.  
2 Select the folder level  
Push the Control knob to [FM] or [AM].  
With the [FM] of the Control knob, you move  
1 level down and with the [AM] of the Control  
knob 1 level up.  
Selecting a folder in the same level  
Push the Control knob to [4] or [¢].  
With the [4] of the Control knob, you move  
to the previous folder, and with the [¢] of the  
Control knob to the next folder.  
Returning to the top level  
Press the [3] button.  
3 Decide the folder to play  
Press the Control knob.  
The Folder Select mode releases, and the MP3/  
WMA in the folder being displayed is played.  
Canceling the Folder Select mode  
Press the [F.SEL] button.  
Text/Title Scroll  
Scrolling the displayed CD text, Audio file text, or  
MD title.  
Hold down on [FM] of the Control knob for at  
least 1 second.  
|
18  
English  
 
Menu system  
SCRL  
+
VOL  
AUD  
SET UP  
PTY  
DISP  
Q
MENU  
OFF  
SCAN  
RDM  
REP  
ATT  
-
DIM  
TI  
AME  
Control  
knob  
MENU  
SRC  
RDS indicator  
Menu display  
Menu System  
4 Exit Menu mode  
Press the [MENU] button.  
Setting during operation beep sound etc.  
functions.  
The Menu system basic operation method is  
When other items that are applicable to the basic  
operation method above are displayed, afterwards  
their setting content chart is entered. (Normally the  
uppermost setting in the chart is the original setting.)  
Also, the explanation for items that aren’t applicable  
(<Manual Clock Adjustment> etc.) are entered step  
by step.  
explained here. The reference for the Menu items  
and their setting content is after this operation  
explanation.  
1 Enter Menu mode  
Press the [MENU] button for at least 1 second.  
"MENU" is displayed.  
2 Select the menu item  
Push the Control knob to [FM] or [AM].  
Example: When you want to set the beep sound  
select the "BEEP" display.  
3 Set the menu item  
Push the Control knob to [4] or [¢].  
Example: When "BEEP" is selected, each time the  
knob is pushed it switches "BEEP ON"  
or "BEEP OFF". Select 1 of them as the  
setting.  
You can continue by returning to step 2 and  
setting other items.  
|
English  
 
19  
Menu system  
Function of the KDC-W4531  
In Standby mode  
"APPROVED" is displayed.  
The unit can be used.  
Security Code  
Because authorization by the Security Code is  
required when it’s removed from the vehicle,  
personalizing this unit is by using the Security  
Code is a help in preventing theft.  
If an incorrect code is input, "WAITING" is displayed,  
and the input prohibited time shown below is  
generated.  
After the input prohibited time lapses, "CODE" is  
displayed, and input can be done.  
Number of times the  
incorrect code was input  
1
2
3
4
Input prohibited time  
When the Security Code function is activated, it can’t be  
released.  
Note, your Security Code is the 4 digit number entered in  
your "Car Audio Passport" in this package.  
5 minutes  
1 hour  
1 Enter Standby  
24 hours  
Press the [SRC] button.  
Select the "STANDBY" display.  
2 Enter Menu mode  
In Standby mode  
Press the [MENU] button for at least 1 second.  
When "MENU" is displayed, "SECURITY" is  
displayed.  
Touch Sensor Tone  
Setting the operation check sound (beep sound)  
ON/OFF.  
3 Enter Security Code mode  
Press the Control knob for at least 2 seconds.  
When "ENTER" is displayed, "CODE" is displayed.  
Display  
"BEEP ON"  
"BEEP OFF"  
Setting  
Beep is heard.  
Beep canceled.  
4 Select the digits to enter  
Push the Control knob to [4] or [¢].  
5 Select the Security Code numbers  
Push the Control knob to [FM] or [AM].  
In Standby mode  
6 Repeat steps 4 and 5, and complete the  
Security Code.  
Manual Clock Adjustment  
7 Confirm the Security Code  
Press the Control knob for at least 3 seconds.  
When "RE-ENTER" is displayed, "CODE" is  
displayed.  
This adjustment can be done when the <Synchronize  
Clock> (page 21) is set as OFF (KDC-W4531/W4031/  
W409/3031A/3031G/309A/309G).  
1 Select Clock Adjustment mode  
Push the Control knob to [FM] or [AM].  
Select the "CLK ADJ" display.  
8 Do the step 4 through 7 step operation, and  
reenter the security code.  
"APPROVED" is displayed.  
The Security Code function activates.  
2 Enter Clock Adjust mode  
Press the Control knob for at least 2 seconds.  
The clock display blinks.  
If you enter a Code different from your Security Code,  
you have to start over from step 4.  
3 Adjust the hours  
Push the Control knob to [FM] or [AM].  
Press the Reset button and when its removed  
from the battery power source  
Adjust the minutes  
1 Turn the power ON.  
Push the Control knob to [4] or [¢].  
2 Do the step 4 through 7 step operation, and  
reenter the security code.  
4 Exit Clock adjustment mode  
Press the Control knob.  
|
20  
English  
 
Function of the KDC-W4531/W4031/W409/3031A/  
3031G/309A/309G  
Display and Setting  
"NEWS OFF"  
"NEWS 00M"  
In Standby mode  
Synchronize Clock  
"NEWS 90M"  
Synchronizing the RDS station time data and this  
unit’s clock.  
When "NEWS 00M" — "NEWS 90M" is set, the  
News Bulletin Interrupt function is ON.  
When it’s ON, the "NEWS" is displayed.  
When the news bulletin starts, "NEWS" is  
displayed, and it switches to the news bulletin.  
Display  
"SYNC ON"  
"SYNC OFF"  
Setting  
Synchronizes the time.  
Adjust the time manually.  
It takes 3 to 4 minutes to synchronize the clock.  
If you choose the "20M" setting, further news bulletins  
will not be received for 20 minutes once the first news  
bulletin is received.  
The news bulletin volume is the same level that was  
set for <Traffic Information> (page 13).  
This function is only available if the desired station  
sends PTY-code for news bulletin or belongs to  
<Enhanced Other Network>-Network sending PTY-  
code for news bulletin.  
In Standby mode  
DSI (Disabled System Indicator)  
A red indicator will blink on the unit after the  
faceplate is removed, warning potential thieves.  
When the News Bulletin Interrupt function is ON, it  
switches to an FM station.  
Display  
"DSI ON"  
"DSI OFF"  
Setting  
LED flashes.  
LED OFF.  
In Tuner mode  
Local Seek  
Function of the KDC-W4531/W4031/W409  
In Standby mode  
Only stations whose reception is good are  
searched for in auto seek tuning.  
Selectable Illumination  
Display  
"LO.S OFF"  
"LO.S ON"  
Setting  
The local seek function is OFF.  
The local seek function is ON.  
Selecting the button illumination color as green  
or red.  
Display  
Setting  
"KEY RED"  
"KEY GRN"  
The illumination color is red.  
The illumination color is green.  
Function of the KDC-W4531/W4031/W409/3031A/  
3031G/309A/309G  
In Tuner mode  
Tuning Mode  
Function of the KDC-W4531/W4031/W409/3031A/  
3031G/309A/309G  
Sets the tuning mode.  
News Bulletin with Timeout Setting  
Tuning mode  
Auto seek  
Preset station seek "AUTO 2"  
Display  
"AUTO 1"  
Operation  
Automatic search for a station.  
Search in order of the stations  
in the Preset memory.  
It switches automatically when a news bulletin  
starts even if the radio isn’t being listened to. Also,  
the time interval when interrupt is prohibited can  
be set.  
Manual  
"MANUAL" Normal manual tuning control.  
|
English  
 
21  
Menu system  
Function of the KDC-W4531/W4031/W409/3031A/  
3031G/309A/309G  
Display  
"ATPS ON"  
"ATPS OFF"  
Setting  
The Auto TP Seek Function is ON.  
The Auto TP Seek Function is OFF.  
AF (Alternative Frequency)  
When poor reception is experienced,  
automatically switch to another frequency  
broadcasting the same program in the same RDS  
network with better reception.  
In FM reception  
Monaural Reception  
Display  
"AF ON"  
"AF OFF"  
Setting  
The AF function is ON.  
The AF function is OFF.  
Noise can be reduced when stereo broadcasts are  
received as monaural.  
Display  
"MONO OFF"  
"MONO ON"  
Setting  
The monaural reception is OFF.  
The monaural reception is ON.  
When the AF function is ON, the "RDS" indicator  
is ON.  
When no other stations with stronger reception are  
available for the same program in the RDS network,  
you may hear the incoming broadcast in bits and  
snatches. Turn OFF the AF function in such a case.  
Function of the KDC-W4531  
Auxiliary Input Display Setting  
For selecting the display when switched to  
Auxiliary input source.  
Function of the KDC-W4531/W4031/W409/3031A/  
3031G/309A/309G  
1 Select Auxiliary input source  
Press the [SRC] button.  
Select the "AUX EXT" display.  
Restricting RDS Region (Region  
Restrict Function)  
You can choose whether or not to restrict the  
RDS channels, received with the AF function for a  
particular network, to a specific region.  
2 Enter Menu mode  
Press the [MENU] button for at least 1 second.  
"MENU" is displayed.  
3 Select Auxiliary input display setting mode  
Push the Control knob to [FM] or [AM].  
Select the "NAME SET" display.  
Display  
"REG ON"  
"REG OFF"  
Setting  
The Region Restrict Function is ON.  
The Region Restrict Function is OFF.  
4 Enter Auxiliary input display setting mode  
Press the Control knob for at least 2 seconds.  
The presently selected Auxiliary input display is  
displayed.  
Without restricting AF function to the specified region  
and network, it sets up to search the station with  
good reception in the same RDS network.  
5 Select the Auxiliary input display  
Push the Control knob to [4] or [¢].  
Each time the knob is pushed, the display  
Function of the KDC-W4531/W4031/W409/3031A/  
3031G/309A/309G  
switches as shown below.  
• "AUX EXT"  
• "TV"  
• "DVD"  
• "VIDEO"  
Auto TP Seek  
When the TI function is ON and poor reception  
conditions are experienced when listening to  
a traffic information station, another traffic  
information station with better reception will be  
searched for automatically.  
• "GAME"  
• "PORTABLE"  
6 Exit Auxiliary input display setting mode  
Press the [MENU] button.  
|
22  
English  
 
Function of the KDC-W4531/W4031/W409/W431G  
In Standby mode  
When operation stops for 10 seconds, the name at  
that time is registered, and the Auxiliary input display  
setting mode closes.  
CD Read Setting  
When there is a problem on playing a CD with  
special format, this setting play the CD by force.  
Display  
Setting  
"CD READ1"  
"CD READ2"  
Play CD and MP3/WMA.  
Play CD by force.  
Text Scroll  
Setting the displayed text scroll.  
Display  
Setting  
Setting "CD READ2" cannot play MP3/WMA.  
"SCL MANU"  
"SCL AUTO"  
Doesn’t scroll.  
Scrolls when the display changes.  
Some music CDs may not be played back even in the  
"CD READ2" mode.  
The text scrolled is shown below.  
- CD text  
In Standby mode  
- Folder name/ File name/ Song title/ Artist name/  
Album name  
- MD title  
Demonstration mode Setting  
Sets the demonstration mode.  
- Radio text  
1 Select the Demonstration mode  
Push the Control knob to [FM] or [AM].  
Select the "DEMO" display.  
In Standby mode  
2 Set the Demonstration mode  
Press the Control knob for at least 2 seconds.  
Each time the knob is pressed at least 2 seconds,  
the Demonstration mode switches as shown  
below.  
Power OFF Timer  
Setting the timer to turn this unit’s power OFF  
automatically when Standby mode continues.  
Using this setting can save the vehicle’s battery  
power.  
Display  
Setting  
"DEMO ON"  
"DEMO OFF"  
The Demonstration mode function is ON.  
Exit Demonstration mode (Normal mode).  
Display  
"OFF – – –"  
"OFF 20M"  
Setting  
Power OFF Timer function is OFF.  
Turns the power OFF after 20 minutes.  
(Original setting)  
"OFF 40M"  
"OFF 60M"  
Turns the power OFF after 40 minutes.  
Turns the power OFF after 60 minutes.  
This setting is done after setting <Security Code>  
(page 20).  
|
English  
 
23  
Accessories/ Installation Procedure  
If your vehicle’s ignition does not have an ACC position,  
or if the ignition wire is connected to a power source  
with constant voltage such as a battery wire, the power  
will not be linked with the ignition (i.e., it will not turn on  
and off along with the ignition). If you want to link the  
unit’s power with the ignition, connect the ignition wire  
to a power source that can be turned on and off with the  
ignition key.  
Accessories  
1
..........1  
If the fuse blows, first make sure that the wires have not  
caused a short circuit, then replace the old fuse with one  
with the same rating.  
2
Insulate unconnected wires with vinyl tape or other  
similar material. To prevent short circuits, also do not  
remove the caps on the ends of the unconnected wires  
or the terminals.  
..........2  
3
Connect the speaker wires correctly to the terminals to  
which they correspond. The unit may receive damage or  
fail to work if you share the - wires and/or ground them  
to any metal part in the car.  
..........1  
After the unit is installed, check whether the brake lamps,  
indicators, wipers, etc. on the car are working properly.  
If the console has a lid, make sure to install the unit so  
that the faceplate does not hit the lid when closing and  
opening.  
Installation Procedure  
1. To prevent short circuits, remove the key from  
the ignition and disconnect the - terminal of  
the battery.  
Mount the unit so that the mounting angle is 30° or less.  
2. Make the proper input and output wire  
connections for each unit.  
3. Connect the wire on the wiring harness.  
4. Take Connector B on the wiring harness and  
connect it to the speaker connector in your  
vehicle.  
5. Take Connector A on the wiring harness and  
connect it to the external power connector on  
your vehicle.  
6. Connect the wiring harness connector to the  
unit.  
7. Install the unit in your car.  
8. Reconnect the - terminal of the battery.  
9. Press the reset button.  
If the power is not turned ON (or it is ON, but will be OFF  
immediately), the speaker wire may have a short-circuit  
or touched the chasis of the vehicle and the protection  
function may have been activated. Therefore, the speaker  
wire should be checked.  
If your car is not prepared for this special connection-  
system, consult your Kenwood dealer.  
Only use antenna conversion adapters (ISO-JASO) when  
the antenna cord has an ISO plug.  
Make sure that all wire connections are securely made by  
inserting jacks until they lock completely.  
|
24  
English  
 
Connecting Wires to Terminals  
KDC-W4531  
KDC-W4031/  
W409/3031A/  
3031G/309A/309G  
KDC-W431G  
A
B
To Steering remote  
To Steering remote  
REMO. CONT  
To KENWOOD disc  
changer/ External optional  
accessory  
A
Rear left output (White)/  
Rear right output (Red)  
To connect these leads, refer to the relevant instruction manuals.  
B
Antenna Cord (ISO)  
FM/AM antenna  
input  
Antenna Conversion Adaptor  
(ISO–JASO) (Accessory3)  
Fuse (10A)  
Wiring harness  
(Accessory1)  
Connect to the terminal that  
is grounded when either the  
telephone rings or during  
conversation.  
TEL mute wire (Brown)  
MUTE  
To connect the KENWOOD  
navigation system, consult  
your navigation manual.  
If no connections are made, do  
not let the wire come out from  
the tab.  
Power control/ Motor  
antenna control wire  
(Blue/White)  
Connect either to the power  
control terminal when using the  
optional power amplifier, or to  
the antenna control terminal in  
the vehicle.  
P.CONT  
ANT.CONT  
Battery wire (Yellow)  
Ignition wire (Red)  
See next page  
A–7 Pin (Red)  
A–4 Pin (Yellow)  
8
7
6
5
4
3
2
1
Connector A  
Connector B  
8
7
6
5
4
3
2
1
English  
 
|
25  
Connecting Wires to Terminals  
Connector Function Guide  
Pin Numbers for Cable Colour  
ISO Connectors  
External Power  
Connector  
2WARNING  
Connecting the ISO Connector  
The pin arrangement for the ISO connectors depends  
on the type of vehicle you drive. Make sure to make the  
proper connections to prevent damage to the unit.  
The default connection for the wiring harness is described  
in 1 below. If the ISO connector pins are set as described  
in 2 or 3, make the connection as illustrated.  
Functions  
A-4  
A-5  
A-7  
A-8  
Yellow  
Blue/White  
Red  
Battery  
Power Control  
Ignition (ACC)  
Earth (Ground)  
Connection  
Black  
Please be sure to reconnect the cable as shown 2 below  
to install this unit to the Volkswagen vehicles etc.  
Speaker  
Connector  
B-1  
B-2  
B-3  
B-4  
B-5  
Purple  
Purple/Black  
Gray  
Gray/Black  
White  
Rear Right (+)  
Rear Right (–)  
Front Right (+)  
Front Right (–)  
Front Left (+)  
1(Default setting) The A-7 pin (red) of the vehicle’s  
ISO connector is linked with the ignition, and  
the A-4 pin (yellow) is connected to the constant  
power supply.  
Ignition cable (Red)  
Unit  
Battery cable (Yellow)  
A-7 Pin (Red)  
B-6  
B-7  
B-8  
White/Black  
Green  
Green/Black  
Front Left (–)  
Rear Left (+)  
Rear Left (–)  
Vehicle  
A-4 Pin (Yellow)  
2The A-7 pin (red) of the vehicle’s ISO connector  
is connected to the constant power supply, and  
the A-4 pin (yellow) is linked to the ignition.  
Ignition cable  
A-7 Pin (Red)  
(Red)  
Unit  
Vehicle  
A-4 Pin (Yellow)  
Battery cable  
(Yellow)  
3The A-4 pin (yellow) of the vehicle’s ISO  
connector is not connected to anything, while  
the A-7 pin (red) is connected to the constant  
power supply (or both the A-7 (red) and A-4  
(yellow) pins are connected to the constant  
power supply).  
Ignition cable (Red)  
Unit  
Battery cable (Yellow)  
A-7 Pin (Red)  
Vehicle  
A-4 Pin (Yellow)  
When the connection is made as in 3 above, the unit’s  
power will not be linked to the ignition key. For that  
reason, always make sure to turn off the unit’s power  
when the ignition is turned off.  
To link the unit’s power to the ignition, connect the  
ignition cable (ACC...red) to a power source that can be  
turned on and off with the ignition key.  
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26  
English  
 
Installation  
Installation  
Metal mounting strap  
(commercially available)  
Firewall or metal support  
Bend the tabs of the  
mounting sleeve with a  
screwdriver or similar utensil  
and attach it in place.  
Self-tapping screw  
(commercially available)  
Screw (M4X8)  
(commercially available)  
Make sure that the unit is installed securely in place. If  
the unit is unstable, it may malfunction (for example, the  
sound may skip).  
English  
 
|
27  
Removing the Unit  
Removing the hard rubber frame  
Removing the Unit  
1 Engage the catch pins on the removal tool and  
remove the two locks on the upper level.  
Upper the frame and pull it forward as shown in  
the figure.  
1 Refer to the section <Removing the hard rubber  
frame> (page 28) and then remove the hard  
rubber frame.  
2 Remove the screw (M4 × 8) on the back panel.  
3 Insert the two removal tools deeply into the slots  
on each side, as shown.  
Screw (M4X8)  
(commercially available)  
Lock  
Catch  
Accessory2  
Removal tool  
2 When the upper level is removed, remove the  
lower two locations.  
Accessory2  
Removal tool  
4 Lower the removal tool toward the bottom, and  
pull out the unit halfway while pressing towards  
the inside.  
The frame can be removed from the bottom side in the  
same manner.  
Be careful to avoid injury from the catch pins on the  
removal tool.  
5 Pull the unit all the way out with your hands,  
being careful not to drop it.  
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28  
English  
 
Troubleshooting Guide  
What might seem to be a malfunction in your unit  
may just be the result of slight misoperation or  
miswiring. Before calling service, first check the  
following table for possible problems.  
? No sound can be heard, or the volume is low.  
The fader or balance settings are set all the way to  
one side.  
Center the fader and balance settings.  
The input/output wires or wiring harness are  
connected incorrectly.  
Reconnect the input/output wires or the  
wiring harness correctly. See the section on  
<Connecting Wires to Terminals>.  
General  
? The power does not turn ON.  
The fuse has blown.  
The values of Volume offset are low.  
After checking for short circuits in the wires,  
replace the fuse with one with the same  
rating.  
Turn up the Volume offset, referring to the  
section on <Audio Setup> (page 8).  
? The sound quality is poor or distorted.  
The speaker wire has a short-circuit or touches  
the chassis of the vehicle, and then the protection  
function is activated.  
One of the speaker wires is being pinched by a  
screw in the car.  
Check the speaker wiring.  
Wire or insulate the speaker cable properly  
and press the reset button.  
The speakers are not wired correctly.  
Reconnect the speaker wires so that each  
output terminal is connected to a different  
speaker.  
? There’s a source you can’t switch.  
There’s no media inserted.  
Set the media you want to listen to. If there’s  
no media in this unit, you can’t switch to each  
source.  
? The Touch Sensor Tone doesn’t sound.  
The preout jack is being used.  
The Touch Sensor Tone can’t be output from  
the preout jack.  
The Disc changer isn’t connected.  
Connect the Disc changer. If the Disc changer  
isn’t connected to it’s input terminal, You can’t  
switch to an external disc source.  
? Even though Synchronize Clock is ON, the clock  
can’t be adjusted.  
The received RDS station isn’t sending time data.  
? The memory is erased when the ignition is  
turned OFF.  
Receive another RDS station.  
The ignition and battery wire are incorrectly  
connected.  
Tuner source  
Connect the wire correctly, referring to the  
section on <Connecting Wires to Terminals>.  
? Radio reception is poor.  
The car antenna is not extended.  
Pull the antenna out all the way.  
? The TEL mute function does not work.  
The TEL mute wire is not connected properly.  
The antenna control wire is not connected.  
Connect the wire correctly, referring to the  
section on <Connecting Wires to Terminals>.  
Connect the wire correctly, referring to the  
section on <Connecting Wires to Terminals>.  
? The TEL mute function turns ON even though the  
TEL mute wire is not connected.  
The TEL mute wire is touching a metal part of the  
car.  
Pull the TEL mute wire away from the metal  
part of the car.  
? Even if Loudness is turned ON, high-pitched tone  
isn’t compensated for.  
Tuner source is selected.  
High-pitched tone isn’t compensated for when  
in Tuner source.  
English  
 
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29  
Troubleshooting Guide  
Disc source  
MP3/WMA source  
? "AUX EXT" is displayed without achieving  
? Cannot play an MP3/WMA.  
External disc control mode.  
The media is scratched or dirty.  
Unsupported disc changer is connected.  
Clean the media, referring to the CD cleaning  
of the section on <About CDs> (page 5).  
Use the disc changer mentioned in the  
<About CD players/disc changers connected  
to this unit> (page 3) of the section on <Safety  
precautions>.  
? The sound skips when an MP3/WMA is being  
played.  
The media is scratched or dirty.  
? The specified disc does not play, but another one  
plays instead.  
Clean the media, referring to the CD cleaning  
of the section on <About CDs> (page 5).  
The specified CD is quite dirty.  
The recording condition is bad.  
Record the media again or use another media.  
Clean the CD.  
The disc is loaded in a different slot from that  
specified.  
? The MP3/WMA track time isn’t displayed  
correctly.  
Eject the disc magazine and check the  
number for the specified disc.  
---  
There are times when it isn’t displayed  
correctly according to the MP3/WMA  
recording conditions.  
The disc is severely scratched.  
Try another disc instead.  
? A CD ejects as soon as it is loaded.  
The CD is quite dirty.  
If the following situations, consult your  
nearest service center:  
Even though the disc changer is connected, the  
Disc Changer source is not ON, with "AUX EXT"  
showing in the display during the Changer Mode.  
Clean the CD, referring to the CD cleaning of  
the section on <About CDs> (page 5).  
? Can’t remove disc.  
The cause is that more than 10 minutes has  
elapsed since the vehicle ACC switch was turned  
OFF.  
The disc can only be removed within 10  
minutes of the ACC switch being turned OFF.  
If more than 10 minutes has elapsed, turn  
the ACC switch ON again and press the Eject  
button.  
? The disc won’t insert.  
There’s already another disc inserted.  
Press the [0] button and remove the disc.  
? Direct Search can’t be done.  
Another function is ON.  
Turn Random Play or other functions OFF.  
? Track Search can’t be done.  
For the discs/folders first or last song.  
For each disc/folder, Track Search can’t be  
done in the backward direction for the first  
song or in the forward direction for the last  
song.  
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30  
English  
 
IN (Blink):  
The CD player section is not operating  
properly.  
The messages shown below display your  
systems condition.  
Reinsert the CD. If the CD cannot be  
ejected or the display continues to flash  
even when the CD has been properly  
reinserted, please switch off the power  
and consult your nearest service center.  
EJECT:  
No disc magazine has been loaded in  
the changer. The disc magazine is not  
completely loaded.  
Load the disc magazine properly.  
No CD in the unit.  
Insert the CD.  
NA FILE:  
A MP3/WMA is played with a format that  
this unit can’t support.  
----  
NO DISC:  
TOC ERR:  
No disc has been loaded in the disc  
magazine.  
Load a disc into the disc magazine.  
COPY PRO:  
A copy-protected file is played.  
----  
No disc has been loaded in the disc  
magazine.  
Load a disc into the disc magazine.  
The CD is quite dirty. The CD is upside-  
down. The CD is scratched a lot.  
Clean the CD and load it correctly.  
E-05:  
The CD is upside-down.  
Load the CD correctly.  
BLANK:  
Nothing has been recorded on the MD.  
NO TRACK:  
No tracks are recorded on the MD,  
although it has a title.  
E-15:  
Media was played that doesn’t have data  
recorded that the unit can play.  
Use media that has data recorded that  
the unit can play.  
NO PANEL:  
E-99:  
The faceplate of the slave unit being  
connected to this unit has been removed.  
Replace it.  
Something is wrong with the disc  
magazine. Or the unit is malfunctioning for  
some reason.  
Check the disc magazine. And then  
press the reset button on the unit. If the  
"E-99" code does not disappear, consult  
your nearest service center.  
HOLD:  
The protective circuit in the unit activates  
when the temperature inside the  
automatic disc changer exceeds 60°C  
(140°F), stopping all operation.  
Cool down the unit by opening  
the windows or turning on the air  
conditioner. As the temperature falls  
below 60°C (140°F), the disc will start  
playing again.  
LOAD:  
Discs are being exchanged in the Disc  
changer.  
READING:  
The unit is reading the data on the disc.  
English  
 
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31  
Specifications  
Specifications subject to change without notice.  
MP3 decode  
FM tuner section  
Frequency range (50 kHz space)  
: 87.5 MHz – 108.0 MHz  
Usable sensitivity (S/N = 26dB)  
: 0.7 µV /75 Ω  
Quieting Sensitivity (S/N = 46dB)  
: 1.6 µV /75 Ω  
Frequency response ( 3.0 dB)  
: 30 Hz – 15 kHz  
Signal to Noise ratio (MONO)  
: 65 dB  
Selectivity (DIN) ( 400 kHz)  
: ≥ 80 dB  
Stereo separation (1 kHz)  
: 35 dB  
KDC-W4531/W4031/W409/W431G  
: Compliant with MPEG-1/2 Audio Layer-3  
WMA decode  
KDC-W4531/W4031/W409/W431G  
: Compliant with Windows Media Audio  
Audio section  
Maximum output power  
KDC-W4531/W4031/W409  
: 50 W x 4  
KDC-3031A/3031G/309A/309G/W431G  
: 45 W x 4  
Output power (DIN 45324, +B=14.4V)  
KDC-W4531/W4031/W409  
: 30 W x 4  
MW tuner section  
Frequency range (9 kHz space)  
: 531 kHz – 1611 kHz  
Usable sensitivity (S/N = 20dB)  
: 25 µV  
KDC-3031A/3031G/309A/309G/W431G  
: 28 W x 4  
Tone action  
Bass : 100 Hz 10 dB  
Middle : 1 kHz 10 dB  
Treble : 10 kHz 10 dB  
Preout level / Load (during disc play)  
: 2000 mV/10 kΩ  
LW tuner section  
Frequency range  
: 153 kHz – 281 kHz  
Usable sensitivity (S/N = 20dB)  
: 45 µV  
Preout impedance (during disc play)  
: ≤ 600 Ω  
General  
CD player section  
Laser diode  
: GaAlAs  
Digital filter (D/A)  
: 8 Times Over Sampling  
D/A Converter  
: 1 Bit  
Spindle speed  
: 500 – 200 rpm (CLV)  
Operating voltage (11 – 16V allowable)  
: 14.4 V  
Current consumption  
: 10 A  
Installation Size (W x H x D)  
: 182 x 53 x 155 mm  
Weight  
: 1.4 kg  
Wow & Flutter  
: Below Measurable Limit  
Frequency response ( 1 dB)  
: 10 Hz – 20 kHz  
Total harmonic distortion (1 kHz)  
: 0.01 %  
Signal to Noise ratio (1 kHz)  
KDC-W4531/W4031/W409/W431G: 105 dB  
KDC-3031A/3031G/309A/309G: 93 dB  
Dynamic range  
: 93 dB  
Channel separation  
: 85 dB  
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32  
English  
 

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