Kenwood Portable CD Player KDC W237 User Manual

CD-RECEIVER  
KDC-W4037  
KDC-W3537  
KDC-W3037  
KDC-W311  
KDC-W237  
INSTRUCTION MANUAL  
© B64-3554-00/00 (E0/E20)  
 
Safety precautions  
About CD players/disc changers connected  
to this unit  
2WARNING  
To prevent injury or fire, take the following  
precautions:  
Kenwood disc changers/ CD players released in 1998  
or later can be connected to this unit.  
• To prevent a short circuit, never put or leave any  
metallic objects (such as coins or metal tools) inside  
the unit.  
Refer to the catalog or consult your Kenwood dealer  
for connectable models of disc changers/ CD players.  
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.  
Connecting unsupported disc changers/CD players to  
this unit may result in damage.  
• Mounting and wiring this product requires skills and  
experience. For safety’s sake, leave the mounting  
and wiring work to professionals.  
Set the "O-N" Switch to the "N" position for the  
applicable Kenwood disc changers/ CD players.  
The functions you can use and the information that  
can be displayed may 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 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 splashing.  
• 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.  
You can damage both your unit and the CD changer if you  
connect them incorrectly.  
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  
dealer.  
• When replacing a fuse, only use a new fuse 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.  
• When you purchase optional accessories, check with  
your Kenwood dealer to make sure that they work  
with your model and in your area.  
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.  
• The characters which can be displayed by this unit  
are A-Z 0-9 @ " ‘ ` % & * + – = , . / \ < > [ ] ( ) : ; ^ - { } |  
~ .  
• The RDS feature won’t work where the service is not  
supported by any broadcasting station.  
• 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.  
¤
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.  
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 25).  
How to reset your unit  
• If the unit fails to operate properly, press the Reset  
button. The unit returns to factory settings when the  
Reset button is pressed.  
• Press the reset button if the disc auto changer fails  
to operate correctly. Normal operation should be  
restored.  
Reset button  
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English  
 
About Audio file  
Handling CDs  
Playable Audio file  
• Do not touch the recording surface of the CD.  
MP3 (.mp3), WMA (.wma)  
Playable disc media  
CD-R/RW/ROM  
Playable disc file format  
ISO 9660 Level 1/2, Joliet, Romeo, Long file name.  
• 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  
outward.  
• When removing CDs from this unit, pull them out  
horizontally.  
• If the CD center hole or outside rim has burrs,  
use the CD only after removing the burrs with a  
ballpoint pen etc.  
Although the audio files are complied with the  
standards listed above, the play maybe impossible  
depending on the types or conditions of media or  
device.  
Playing order of the Audio file  
In the example of folder/file tree shown below, the  
files are played in the order from to .  
CDs that cannot be used  
• CDs that are not round cannot be used.  
<
v
:
:
Folder
Audiofile  
CD  
()  
vꢀ  
vꢆ  
vꢇ  
vꢄ  
• CDs with coloring on the recording surface or CDs  
that are dirty cannot be used.  
• This unit can only play the CDs with  
vꢉ  
v.  
.
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.)  
An online manual about audio files is put on the  
site, www.ke wood.com/aud of e. O/ n this online  
manual, detailed information and notes which are not  
written in this manual are provided. Make sure to read  
through the online manual as well.  
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English  
5
 
Notes  
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.  
About DAB Tuner control  
(KDC-W4037/KDC-W3537)  
Refer to A group on the Instruction manual of DAB  
Tuner KTC-9090DAB (optional accessory) for the  
control method of DAB Tuner function.  
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.  
Information on Disposal of Old Electrical  
and Electronic Equipment (applicable for  
EU countries that have adopted separate  
waste collection systems)  
Products with the symbol (crossed-out  
wheeled bin) cannot be disposed as  
household waste.  
<Auto Ensemble Memory Entry>  
1. Select the preset band for Auto Ensemble Memory  
Entry.  
Old electrical and electronic equipment  
should be recycled at a facility capable  
of handling these items and their waste  
byproducts. Contact your local authority  
for details in locating a recycle facility  
nearest to you. Proper recycling and waste  
disposal will help conserve resources whilst  
preventing detrimental effects on our  
health and the environment.  
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> in <Programme  
Type (PTY) Function>  
At the operation to press [DISP] button, use [TI]  
button instead.  
<Automatic Switching DAB priority>  
The marking of products using lasers  
(Except for some areas)  
This function cannot be used.  
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.  
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English  
 
General features  
Release button  
Control knob  
70-  
#ꢀ#0045  
Auxiliary input  
"55  
43$  
Clock display  
ATT indicator  
* An equipment such as a portable audio player can  
be connected to the auxiliary input terminal using a  
commercially available mini-plug (3.5ø).  
Power  
Turning ON the Power  
Press the [SRC] button.  
This unit automatically turns full power OFF after 20  
minutes lapses in Standby mode in order to save the  
vehicle's battery.  
The time until full power OFF can be set in <Power OFF  
Timer> (page 25).  
When the power is ON, the <Security Code> (page 20) is  
displayed as "CODE ON" or "CODE OFF". (Function of the  
KDC-W4037/KDC-W3537)  
** Function of KDC-W4037/KDC-W3537  
Use the mini-plug which is stereo type and does not  
have any resistance.  
Turning OFF the Power  
Press the [SRC] button for at least 1 second.  
Selecting the Source  
Volume  
Press the [SRC] button.  
Increasing Volume  
Turn the [VOL] knob clockwise.  
Source required  
Tuner  
CD  
Display  
"TUNER"  
"CD"  
Decreasing Volume  
External disc (Optional accessory)**  
Auxiliary input*  
"CD CH"  
"AUX"  
Turn the [VOL] knob counterclockwise.  
Auxiliary input (Optional accessory)**  
Standby (Illumination only mode)  
"AUX EXT"  
"STANDBY"  
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English  
7
 
General features  
Press a button other than the [VOL] knob and [ATT]  
button.  
Attenuator  
Turning the volume down quickly.  
Press the [ATT] button.  
Each time you press the button, the Attenuator  
turns ON and OFF.  
When the Attenuator is ON, the "ATT" indicator  
blinks.  
Audio Setup  
Setting the Sound system, such as Volume offset.  
1 Select the source to adjust  
Press the [SRC] button.  
2 Enter Audio Setup mode  
Audio Control  
Press the [VOL] knob for at least 1 second.  
1 Select the source to adjust  
3 Select the Audio Setup item to adjust  
Press the [VOL] knob.  
Press the [SRC] button.  
Each time you press the knob, the item to be  
adjusted alternates between the items shown in  
the table below.  
2 Enter Audio Control mode  
Press the [VOL] knob.  
3 Select the Audio item to adjust  
Press the [VOL] knob.  
Each time you press the knob, the item to be  
adjusted alternates between the items shown in  
the table below.  
4 Adjust the Audio setup item  
Turn the [VOL] knob.  
Adjustment Item  
Low Pass Filter*  
Volume offset  
Display Range  
"LPF"  
80/120/160/Through Hz  
"V-OFF"  
–8 — 0 (AUX : –8 — +8)  
4 Adjust the Audio item  
Turn the [VOL] knob.  
Adjustment Item Display  
Range  
–15 — +15  
Volume offset: Sets each source’s volume as a difference  
Subwoofer level*  
System Q  
"SW L"  
from the basic volume.  
*Function of KDC-W4037  
"NATURAL"/"ROCK"/ Natural/Rock/Pops/Easy/  
"POPS"/"EASY"/  
"TOP40"/"JAZZ"  
Top 40/Jazz  
5 Exit Audio Setup mode  
Press the [VOL] knob for at least 1 second.  
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  
Fader  
"FAD"  
Bass Boost  
Exit Audio Control mode (Volume control mode)  
Bass sound can be enhanced by one-touch  
operation.  
About System Q  
You can recall the best sound setting preset for different  
types of music.  
Press the [B.BOOST] button.  
Change each setting value with the <Speaker Setting>  
(page 9). First, select the speaker type with the Speaker  
setting.  
"USER": This appears when Bass level, Middle level,  
and Treble level are adjusted. When "USER" is  
selected, these levels are recalled.  
When you press the button once, the current Bass  
Boost setting is displayed.  
Each time you press the button, the Bass Boost  
setting alternates.  
Setting  
Display  
*Function of KDC-W4037  
Bass Boost 1  
Bass Boost 2  
Bass Boost off  
"BB-L L1"  
"BB-L L2"  
"BB-L OFF"  
5 Exit Audio Control mode  
Press any button.  
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8
English  
 
In CD & External disc source  
Speaker Setting  
Information  
Disc title  
Track title  
Play time & Track number  
Clock  
Display  
"D-TITLE"  
"T-TITLE"  
"P-TIME"  
"CLOCK"  
Fine-tuning so that the System Q value is optimal  
when setting the speaker type.  
1 Enter Standby  
Press the [SRC] button.  
Select the "STANDBY" display.  
In Audio file source  
2 Enter Speaker Setting mode  
Information  
Display  
"TITLE"  
"ALBUM"  
"FOLDER"  
"FILE"  
Press the [VOL] knob.  
Song title & Artist name  
Album name & Artist name  
Folder name  
File name  
Play time & Track number  
Clock  
3 Select the Speaker type  
Turn the [VOL] knob.  
Each time you turn the knob, the setting alternates  
between the settings shown in the table below.  
"P-TIME"  
"CLOCK"  
Speaker type  
OFF  
For 5 & 4 in. speaker  
For 6 & 6x9 in. speaker  
For the OEM speaker  
Display  
"SP OFF"  
"SP 5/4"  
"SP 6*9/6"  
"SP OEM"  
In Standby/ Auxiliary input source  
Information  
Source name  
Clock  
Display  
"SRC NAME"  
"CLOCK"  
4 Exit Speaker Setting mode  
Press the [VOL] knob.  
3 Exit Switching Display mode  
Press the Control knob.  
Album name cannot be displayed in WMA file.  
If the selected display item does not have any  
information, alternative information is displayed.  
Switching Display  
Changing the information displayed.  
1 Enter Switching Display mode  
Press the Control knob for at least 1 second.  
"DISP SEL" is displayed.  
Function of KDC-W4037  
2 Select the Display item  
Subwoofer Output  
Turning the Subwoofer output ON or OFF.  
Push the Control knob towards [4] or [¢].  
In Tuner source (KDC-W237)  
Push the Control knob toward [AM] for at least  
2 seconds.  
Each time you push the knob, Subwoofer output  
Information  
Frequency  
Clock  
Display  
"FREQ"  
"CLOCK"  
switches ON and OFF.  
When it is ON, "SW ON" is displayed.  
In Tuner source  
Information  
Display  
"FREQ"  
"FREQ/PS"  
"R-TEXT"  
"CLOCK"  
Frequency (MW, LW)  
Program Service name (FM)  
Radio text, Program Service name (FM)  
Clock  
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English  
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.  
When a call comes in  
"CALL" is displayed.  
The faceplate unlocks, allowing you to detach it.  
The audio system pauses.  
¤
Listening to the audio during a call  
Press the [SRC] button.  
The "CALL" display disappears and the audio system  
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 expose the faceplate (and the faceplate case) to  
direct sunlight or excessive heat or humidity. Also avoid  
places with too much dust or the possibility of water  
splashing.  
comes back ON.  
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  
To use the TEL Mute feature, you need to hook up  
the MUTE wire to your telephone using a commercial  
telephone accessory. Refer to <Connecting Wires to  
Terminals> (page 29).  
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  
Control knob  
"650ꢁ  
".&  
ꢂꢃꢄꢃꢅ  
43$  
ST indicator  
Band display  
Frequency display Preset station number  
Function of KDC-W237  
Tuning  
Selecting the station.  
Tuning Mode  
Choose the tuning mode.  
1 Select tuner source  
Press the [SRC] button.  
Select the "TUNER" display.  
Press the [AUTO] button.  
Each time you press the button, the Tuning mode  
alternates between the modes shown in the table  
below.  
2 Select the band  
Push the Control knob towards [FM] or [AM].  
Each time you push the knob toward [FM], it  
switches between the FM1, FM2, and FM3 bands.  
Tuning mode  
Display  
Operation  
Automatic search for a station.  
Search in order of the stations in  
the Preset memory.  
Auto seek  
"AUTO 1"  
Preset station seek "AUTO 2"  
3 Tune up or down band  
Manual  
"MANUAL" Normal manual tuning control.  
Push the Control knob towards [4] or [¢].  
During reception of stereo stations the "ST" indicator is  
ON.  
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English  
11  
 
Tuner features  
Station Preset Memory  
Preset Tuning  
Putting a station in the memory.  
Recalling the stations in the memory.  
1 Select the band  
1 Select the band  
Push the Control knob towards [FM] or [AM].  
Push the Control knob towards [FM] or [AM].  
2 Select the frequency to put in the memory  
2 Recall the station  
Push the Control knob towards [4] or [¢].  
Press the desired [1] — [6] button.  
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 towards [FM] or [AM].  
2 Open Auto Memory Entry  
Press the [AME] button for at least 2 seconds.  
"A-MEMORY" is displayed.  
When 6 stations that can be received are put in the  
memory Auto Memory Entry closes.  
When the <AF (Alternative Frequency)> (page 23) 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 are not put in the  
memory.  
Likewise, when Auto Memory Entry is done in the FM3  
band, RDS stations preset in FM1 or FM2 are not put in  
the memory.  
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12  
English  
 
FRuDncStiofneoaf KtDuCr-Wes4037/KDC-W3537/KDC-W3037/KDC-W311  
Control knob  
ꢂꢃꢄꢃꢅ  
43$  
PTY indicator  
TI indicator  
Traffic Information  
Changing to traffic information automatically when  
a traffic bulletin starts even when you are not  
listening to the radio.  
Traffic information can be switched when it is on the  
Tuner Source. However, you cannot switch the Traffic  
information during reception of the Traffic bulletin  
switched from the source other than the Tuner.  
Press the [TI] button.  
Each time you press the button, the Traffic  
information function turns ON and OFF.  
When traffic information is ON, "TI" indicator is ON.  
When a traffic information station is not being  
received the "TI" indicator blinks.  
Radio Text Scroll  
Scrolling the displayed radio text.  
When a traffic bulletin starts, "TRAFFIC" is displayed  
and the audio changes to traffic information.  
Push the Control knob toward [FM] for at least  
2 seconds.  
During reception of an AM station when the Traffic  
Information function is turned ON, the frequency  
changes to an FM station.  
During reception of traffic information the adjusted  
volume is automatically remembered, and the next time  
the audio changes to traffic information, the volume  
automatically becomes the remembered volume.  
Receiving other traffic information stations  
Push the Control knob towards [4] or [¢].  
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English  
13  
 
FRuDncStiofneoaf KtDuCr-Wes4037/KDC-W3537/KDC-W3037/KDC-W311  
PTY (Program Type)  
Selecting the Program Type and searching for a  
station.  
Speech and Music include the Program type shown  
below.  
Music: No.12 17, 26 30  
Speech: No.3 11, 18 25, 31  
1 Enter PTY mode  
You can put the Program Type in the [1] — [6] button  
memory and for quick recall. Refer to the <Program Type  
preset> (page 14).  
Press the Control knob.  
During PTY mode the "PTY" indicator is ON.  
You can change the display language. Refer to  
<Changing Language for PTY Function> (page 15).  
This function cannot be used during a traffic bulletin or  
AM reception.  
3 Search for the selected Program Type station  
Push the Control knob towards [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 towards [FM] or [AM].  
Each time you push the knob, the Program Type  
alternates between the program types shown in  
the table below.  
When the selected Program Type is not found, "NO PTY"  
is displayed. Select another Program Type.  
No. Program Type  
Display  
1.  
2.  
3.  
Speech  
Music  
News  
"SPEECH"  
"MUSIC"  
"NEWS"  
4 Exit PTY mode  
Press the Control knob.  
4.  
5.  
6.  
Current Affairs  
Information  
Sport  
"AFFAIRS"  
"INFO"  
"SPORT"  
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  
Putting the Program Type in the Preset button  
memory and quick recall.  
10.  
11.  
12.  
13.  
14.  
15.  
16.  
17.  
18.  
19.  
20.  
21.  
22.  
23.  
24.  
25.  
26.  
27.  
28.  
29.  
30.  
31.  
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  
Recalling the preset Program Type  
Children’s programs  
Social Affairs  
Religion  
Phone In  
Travel  
1 Enter PTY mode  
Refer to <PTY (Program Type)> (page 14).  
2 Recall the Program Type  
Press the desired [1] [6] button.  
Leisure  
Jazz Music  
Country Music  
National Music  
Oldies Music  
Folk Music  
Documentary  
"FOLK M"  
"DOCUMENT"  
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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 towards [FM] or [AM].  
Each time you push the knob, the language  
alternates between the languages shown in the  
table below.  
Language  
English  
French  
Display  
"ENGLISH"  
"FRENCH"  
"GERMAN"  
German  
4 Exit Changing Language mode  
Press the [TI] button.  
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English  
15  
 
CD/Audio file/External disc control features  
4$"/ 3%.ꢁ 3&1 'ꢀ4&- .ꢀ3%.  
43$  
Control knob  
Disc number  
IN indicator  
Track number  
Play time  
Function of KDC-W4037/KDC-W3537  
Playing CD & Audio file  
Playing External Disc  
Playing discs set in the optional accessory disc  
player connected to this unit.  
When a disc is inserted  
Press the [SRC] button.  
Select the "CD" display.  
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  
Press the Control knob.  
Each time you press the knob, the audio pauses or  
plays.  
Display  
"CD CH"  
"MD CH"  
Disc player  
CD changer  
MD changer  
Pause and play  
Eject the CD  
Press the Control knob.  
Each time you press the knob, the audio pauses or  
plays.  
Press the [0] button.  
Refer to <About Audio file> (page 5) for the Audio file by  
models you can play.  
You can eject the disc for 10 minutes after switching off  
the engine.  
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.  
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16  
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Accessory of KDC-W4037/KDC-W3537  
Function of remote control  
Fast Forwarding and Reversing  
Direct Track/File Search  
Doing Track/File Search by entering the track/file  
number.  
Fast Forwarding  
Hold down toward [¢] with the Control knob.  
Release to resume the playback.  
Reversing  
1 Enter the track/file number  
Press the number buttons on the remote  
control.  
Hold down toward [4] with the Control knob.  
Release to resume the playback.  
2 Do Track/File Search  
There is no sound while the Audio file is being searched.  
The accurate track time is not displayed during fast  
forwarding or reversing of the Audio file.  
Press the [4] or [¢] button.  
Cancelling Direct Track/File Search  
Press the [38] button.  
Track/File Search  
Searching for a song on the disc or in the Audio file  
folder.  
Function of KDC-W4037/KDC-W3537  
Function of disc changers with remote control  
Direct Disc Search  
Doing Disc Search by entering the disc number.  
Push the Control knob towards [4] or [¢].  
1 Enter the disc number  
Press the number buttons on the remote  
control.  
Function of disc changer/ Audio file  
2 Do Disc Search  
Disc Search/Folder Search  
Selecting the disc set in the Disc changer or the  
folder recorded on the Audio file media.  
Press the [+] or [] button.  
Cancelling Direct Disc Search  
Press the [38] button.  
Push the Control knob towards [FM] or [AM].  
Input "0" to select disc 10.  
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17  
 
CD/Audio file/External disc control features  
Track/File/Disc/Folder Repeat  
Random Play  
Replaying the song, disc in the Disc changer or  
Audio file folder you are listening to.  
Play all the songs on the disc or Audio file folder in  
random order.  
Press the [REP] button.  
Press the [RDM] button.  
Each time you press the button, the Repeat Play  
alternates between the modes shown in the tables  
below.  
Each time you press the button, Random Play turns  
ON or OFF.  
When the Random mode is ON, "DISC RDM"/"FOLD  
RDM" is displayed.  
In CD & External disc source  
Repeat play  
Track Repeat  
Disc Repeat (In Disc Changer)  
OFF  
Display  
When you push the Control knob toward [¢], the next  
"TRAC REP"  
"DISC REP"  
"REP OFF"  
random song starts.  
In Audio file source  
Repeat play  
File Repeat  
Folder Repeat  
OFF  
Display  
Function of KDC-W4037/KDC-W3537  
Function of disc changer  
"FILE REP"  
"FOLD REP"  
"REP OFF"  
Magazine Random Play  
Play the songs on all the discs in the disc changer in  
random order.  
Press the [M.RDM] button.  
Each time you press the button, the Magazine  
Random Play turns ON or OFF.  
When the Magazine Random mode is ON, "MGZN  
RDM" is displayed.  
Scan Play  
Playing the first part of each song on the disc or  
Audio file folder you are listening to and searching  
for the song you want to hear.  
When you push the Control knob toward [¢], the next  
random song starts.  
1 Start Scan Play  
Press the [SCAN] button.  
"TRAC SCN"/"FILE SCN" is displayed.  
2 Release it when the song you want to listen to  
is played  
Press the [SCAN] button.  
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Function of Audio file  
Text/Title Scroll  
Scrolling the displayed CD text or Audio file text.  
Folder Select  
Quickly selecting the folder you want to hear.  
Push the Control knob toward [FM] for at least  
2 seconds.  
1 Enter Folder Select mode  
Press the [F.SEL] button.  
"FLD SEL" 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 towards [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 towards [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.  
Scrolling the folder name display  
Push the Control knob toward [FM] for at least  
2 seconds.  
3 Decide the folder to play  
Press the Control knob.  
The Folder Select mode releases, and the Audio file  
in the folder being displayed plays.  
Cancelling the Folder Select mode  
Press the [F.SEL] button.  
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19  
 
Menu system  
Control knob  
.&/6  
43$  
RDS indicator  
Menu display  
Menu System  
Setting beep sound during operation, etc.  
functions.  
The Menu system basic operation method is  
explained here. The reference for the Menu items  
and their setting content is after this operation  
explanation.  
4 Exit Menu mode  
Press the [MENU] button.  
When other items those applicable to the basic  
operation method above are displayed, their setting  
content chart is entered. (Normally the setting listed at  
the top of the chart is the original setting.)  
Also, the explanation for items that are not applicable  
(<Manual Clock Adjustment> etc.) are entered step by  
step.  
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 towards [FM] or [AM].  
Example: When you want to set the beep sound  
select the "BEEP" display.  
Function of KDC-W4037/KDC-W3537  
In Standby mode  
Security Code  
3 Set the menu item  
Activating the Security Code disables the usage  
of audio unit by someone else. Once the Security  
Code is activated, the entry of authorized Security  
Code is required to turn on the audio unit when it is  
removed from the vehicle. Indication of this Security  
Code activation prevents your precious audio unit  
from stealing.  
Push the Control knob towards [4] or [¢].  
Example: When you select "BEEP", each time you  
push the knob it alternates between  
"BEEP ON" or "BEEP OFF". Select 1 of them  
as the setting.  
You can continue by returning to step 2 and  
setting other items.  
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English  
 
After the input prohibition time lapses, "CODE" is  
displayed, and you can reenter the code.  
When you activate the Security Code function, it cannot be  
Number of times the  
incorrect code was input  
1
2
3
4
Input prohibited time  
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  
Press the [SRC] button.  
Select the "STANDBY" display.  
24 hours  
2 Enter Menu mode  
Press the [MENU] button for at least 1 second.  
When "MENU" is displayed, "CODE SET" is displayed.  
3 Enter Security Code mode  
Press the Control knob for at least 1 second.  
When "ENTER" is displayed, "CODE" is also  
displayed.  
In Standby mode  
Touch Sensor Tone  
Setting the operation check sound (beep sound)  
ON/OFF.  
4 Select the digits to enter  
Push the Control knob towards [4] or [¢].  
Display  
"BEEP ON"  
"BEEP OFF"  
Setting  
Beep is heard.  
Beep canceled.  
5 Select the Security Code numbers  
Push the Control knob towards [FM] or [AM].  
6 Repeat steps 4 and 5, and complete the  
Security Code.  
7 Confirm the Security Code  
Press the Control knob for at least 3 seconds.  
When "RE-ENTER" is displayed, "CODE" is also  
displayed.  
In Standby mode  
Manual Clock Adjustment  
8 Do the step 4 through 7 step operation, and  
reenter the security code.  
"APPROVED" is displayed.  
You can do this adjustment when the <Synchronize Clock>  
(page 22) is set as OFF.  
The Security Code function activates.  
1 Select Clock Adjustment mode  
Push the Control knob towards [FM] or [AM].  
Select the "CLK ADJ" display.  
If you enter a Code different from your Security Code,  
you have to start over from step 4.  
2 Enter Clock Adjust mode  
Resetting the Security Code function when the  
audio unit is first used after removed from the  
battery power source or the Reset button is  
pressed  
Press the Control knob for at least 1 second.  
The clock display blinks.  
3 Adjust the hours  
Push the Control knob towards [FM] or [AM].  
1 Turn the power ON.  
Adjust the minutes  
Push the Control knob towards [4] or [¢].  
2 Do the step 4 through 7 step operation, and  
reenter the security code.  
"APPROVED" is displayed.  
Now, you can use the unit.  
4 Exit Clock adjustment mode  
Press the [MENU] button.  
If an incorrect code is entered, "WAITING" is displayed,  
and the input prohibition periods shown in the table  
below is generated.  
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21  
 
Menu system  
Function of KDC-W4037/KDC-W3537/  
KDC-W3037/KDC-W311  
Function of KDC-W4037  
In Standby mode  
In Standby mode  
Switching preout  
Alternating the preout between the rear and  
subwoofer. (With the subwoofer the sound outputs  
without being effected by fader control.)  
Synchronize Clock  
Synchronizing the RDS station time data and this  
unit’s clock.  
Display  
"SYNC ON"  
"SYNC OFF"  
Setting  
Synchronizes the time.  
Adjust the time manually.  
Display  
"SWPRE R"  
"SWPRE SW"  
Setting  
Rear preout.  
Subwoofer preout.  
It takes 3 to 4 minutes to synchronize the clock.  
In Audio file source  
Supreme Setting  
In Standby mode  
When MP3 or WMA files encoded at a low bit rate  
(less than 96kbps (fs=32k, 44.1k, 48kHz)) are played,  
this function restores their high frequency region  
to approach the sound quality of equivalents of  
these files encoded at a high bit rate. Processing is  
optimized for the compression format used (MP3, or  
WMA), and adjustment is made for the bit rate used.  
DSI (Disabled System Indicator)  
A red indicator will blink on the unit after the  
faceplate is removed, warning potential thieves.  
Display  
"DSI ON"  
"DSI OFF"  
Setting  
LED flashes.  
LED OFF.  
Display  
Setting  
"SPRM ON"  
Plays sound using the Supreme function.  
"SPRM OFF"  
Plays the original sound stored in the audio file.  
Function of KDC-W4037  
In Standby mode  
The sound effect may be imperceptible depending  
Selectable Illumination  
Selecting the button illumination color as green or  
red.  
on the relationship between the audio file format and  
setting.  
Display  
Setting  
"KEY RED"  
"KEY GRN"  
The illumination color is red.  
The illumination color is green.  
Function of KDC-W4037/KDC-W3537/  
KDC-W3037/KDC-W311  
News Bulletin with Timeout Setting  
The tuner automatically changes when a news  
bulletin starts even if the radio is not being listened  
to. Also, you can set the time interval when  
interruption is prohibited.  
Dimmer  
You can lower the brightness of the display by using  
the dimmer function.  
Display and Setting  
"NEWS OFF"  
"NEWS 00M"  
Display  
"DIM ON"  
"DIM OFF"  
Setting  
The display dims.  
The display doesn’t dim.  
"NEWS 90M"  
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English  
 
When you set "NEWS 00M" — "NEWS 90M", the  
News Bulletin Interrupt function is ON.  
When the News Bulletin is ON, the "NEWS"  
indicator is ON.  
When the news bulletin starts, "NEWS" is displayed,  
and the tuner changes to the news bulletin.  
Function of KDC-W4037/KDC-W3537/  
KDC-W3037/KDC-W311  
AF (Alternative Frequency)  
When the reception is poor, automatically alternate  
to another frequency broadcasting the same  
program in the same RDS network with better  
reception.  
If you choose the "20MIN" setting, further news bulletins  
will not be received for 20 minutes once the first news  
bulletin is received.  
Display  
"AF ON"  
"AF OFF"  
Setting  
The AF function is ON.  
The AF function is OFF.  
The news bulletin volume is the same level that was set  
for <Traffic Information> (page 13).  
This news bulletin 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.  
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.  
When the News Bulletin Interrupt function is ON, the  
tuner changes to an FM station.  
In Tuner mode  
Function of KDC-W4037/KDC-W3537/  
KDC-W3037/KDC-W311  
Local Seek  
Only stations whose reception is good are searched  
in auto seek tuning.  
Restricting RDS Region (Region  
Restrict Function)  
Display  
"LO.S OFF"  
"LO.S ON"  
Setting  
The local seek function is OFF.  
The local seek function is ON.  
You can choose whether or not to restrict the  
RDS channels, received with the AF function for a  
particular network, to a specific region.  
Display  
Setting  
"REG ON"  
"REG OFF"  
The Region Restrict Function is ON.  
The Region Restrict Function is OFF.  
Function of KDC-W4037/KDC-W3537/  
KDC-W3037/KDC-W311  
In Tuner mode  
If AF function is not restricted to the specified region and  
network, the AF function sets up to search the station  
with good reception in the same RDS network.  
Tuning Mode  
Sets the tuning mode.  
Tuning mode  
Display  
Operation  
Auto seek  
"AUTO 1"  
Automatic search for a station.  
Preset station seek "AUTO 2"  
Search in order of the stations in  
the Preset memory.  
Manual  
"MANUAL" Normal manual tuning control.  
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23  
 
Menu system  
Function of KDC-W4037/KDC-W3537/KDC-W3037/  
KDC-W311  
• "AUX"/"AUX EXT"  
• "DVD"  
Auto TP Seek  
• "PORTABLE"  
• "GAME"  
• "VIDEO"  
When the TI function is ON and the reception is  
poor while listening to a traffic information station,  
another traffic information station with better  
reception will be searched for automatically.  
• "TV"  
6 Exit Auxiliary input display setting mode  
Press the [MENU] button.  
Display  
"ATPS ON"  
"ATPS OFF"  
Setting  
The Auto TP Seek Function is ON.  
The Auto TP Seek Function is OFF.  
When operation stops for 10 seconds, the name at that  
time is registered, and the Auxiliary input display setting  
mode closes.  
You can only set the Auxiliary input display when the  
auxiliary input of optional KCA-S220A is used.  
In FM reception  
Monaural Reception  
You can reduce the noise when stereo broadcasts  
are received as monaural.  
Text Scroll  
Setting the displayed text scroll.  
Display  
Setting  
"MONO OFF"  
"MONO ON"  
The monaural reception is OFF.  
The monaural reception is ON.  
Display  
"SCL MANU"  
"SCL AUTO"  
Setting  
Doesn’t scroll.  
Scrolls when the display changes.  
The text scrolled is listed below.  
- CD text  
Auxiliary Input Display Setting  
- Folder name/ File name/ Song title/ Artist name/  
Album name  
- MD title  
- Radio text  
Selecting the display when alternating to Auxiliary  
input source.  
1 Select Auxiliary input source  
Press the [SRC] button.  
Select the "AUX"/"AUX EXT" display.  
2 Enter Menu mode  
Function of KDC-W4037/KDC-W3537/KDC-W3037/  
KDC-W311/KDC-W237 (Russian sales area)  
In Standby mode  
Press the [MENU] button for at least 1 second.  
"MENU" is displayed.  
3 Select Auxiliary input display setting mode  
Push the Control knob towards [FM] or [AM].  
Select the "NAME SET" display.  
Selecting Russian Characters  
Select Russian as a text display language.  
Display  
"RUS ON"  
"RUS OFF"  
Setting  
4 Enter Auxiliary input display setting mode  
Press the Control knob for at least 1 second.  
The selected Auxiliary input display is displayed.  
Displays texts using Russian characters.  
Displays texts using European characters.  
5 Select the Auxiliary input display  
Push the Control knob towards [4] or [¢].  
Each time you push the knob, the display alternates  
as listed below.  
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24  
English  
 
In Standby mode  
CD Read Setting  
When there is a problem with playing a CD with  
special format, this setting plays the CD by force.  
Texts displayed using Russian characters are as follows.  
- Folder name/ File name/ Song title/ Artist name/  
Album name  
- CD text (internal CD source)  
Texts cannot distinguish upper case and lower case in  
Russian characters.  
Display  
"CD READ1"  
"CD READ2"  
Setting  
Play CD and Audio file.  
Play CD by force.  
Some music CDs may not play even in the "CD READ2"  
mode.  
In Standby mode  
In Standby mode  
Demonstration mode Setting  
Sets the demonstration mode.  
Built-in Auxiliary input Setting  
Set the Built-in Auxiliary Input function.  
1 Select the Demonstration mode  
Push the Control knob towards [FM] or [AM].  
Select the "DEMO" display.  
Display  
Setting  
"AUX OFF" When selecting the source there’s no Auxiliary Input.  
"AUX ON1" When selecting the source there’s Auxiliary Input.  
"AUX ON2"  
2 Set the Demonstration mode  
When the unit is turned on by AUX source, the attenuator  
function is activated. Press [ATT] button to cancel the  
attenuator function in order to listen to the external  
equipment. there’s Auxiliary Input.  
Press the Control knob for at least 2 seconds.  
Each time you press the knob at least 2 seconds,  
the Demonstration mode alternates between the  
settings shown in the table below.  
Display  
Setting  
Setting to "AUX ON2" will not output the noise which is  
produced when an external equipment is not connected  
to the AUX terminal.  
"DEMO ON"  
"DEMO OFF"  
The Demonstration mode function is ON.  
Exit Demonstration mode (Normal mode).  
In Standby mode  
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  
"OFF – – –"  
Power OFF Timer function is OFF.  
"OFF 20M"  
(Original setting)  
Turns the power OFF after 20 minutes.  
"OFF 40M"  
"OFF 60M"  
Turns the power OFF after 40 minutes.  
Turns the power OFF after 60 minutes.  
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25  
 
Accessory of KDC-W4037/KDC-W3537 (Sales area other than Western European Countries)  
Basic Operations of remote control  
SRC  
VOL  
SRC  
ATT  
AT T  
VOL  
38  
AUD  
AUD  
38  
FM+  
4
¢
4/¢  
AM–  
FM/AM/+/–  
DIRECT  
/OK  
Not Used  
ABC  
JKL  
DEF  
GHI  
MNO  
WXY  
[0] — [9]  
PRS  
TUV  
QZ  
:This button is used when Bluetooth HANDS  
FREE BOX is connected. For more information,  
refer to the instruction manual of Bluetooth  
HANDS FREE BOX.  
Loading and Replacing the battery  
Basic operations  
Use two "AA"/ "R6"-size batteries.  
Slide the cover while pressing downwards to  
remove it as illustrated.  
Insert the batteries with the + and – poles aligned  
properly, following the illustration inside the case.  
[VOL] buttons  
Adjusts the volume.  
[SRC] button  
Each time you press the button, the source  
alternates.  
For the source alternating order refer to <Selecting  
the Source> (page 7).  
[ATT] button  
Turns the volume down quickly.  
When the button is pressed again, the volume  
returns to the previous level.  
2WARNING  
Store unused batteries out of the reach of children.  
Contact a doctor immediately if the battery is  
accidentally swallowed.  
¤
Do not set the remote control in hot places such as on  
the dashboard.  
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26  
English  
 
Audio Control  
[AUD] button  
Selects the Audio item to be adjusted.  
[VOL] buttons  
Adjusts the Audio item.  
Refer to <Audio Control> (page 8) for the operation  
method, such as the procedures for Audio control and  
others operations.  
In Tuner source  
[FM]/ [AM] buttons  
Selects the band.  
Each time you press the [FM] button, the band  
alternates between the FM1, FM2, and FM3 bands.  
[4]/ [¢] buttons  
Tune up or down band.  
[0] — [9] buttons  
Press buttons [1] — [6] to recall preset stations.  
[38] button  
Enters and cancels the <PTY (Program Type)>  
(page 14) mode.  
In Disc source  
[4]/ [¢] buttons  
Going forwards and backwards between track/files.  
[+]/ [] buttons  
Going forwards and backwards between disc/  
folders.  
[38] button  
Each time you press the button, the song pauses  
or plays.  
[0] — [9] buttons  
When in <Direct Track/File Search> (page 17) and  
<Direct Disc Search> (page 17), enters the track/  
file/disc number.  
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27  
 
Accessories/ Installation Procedure  
Accessories  
¤
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.  
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.  
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.  
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.  
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
..........1  
2
..........2  
3
..........1  
Installation Procedure  
1. To prevent short circuits, remove the key from the  
ignition and disconnect the - terminal of the  
battery.  
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.  
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.  
Mount the unit so that the mounting angle is 30° or less.  
8. Reconnect the - terminal of the battery.  
9. Press the reset button.  
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28  
English  
 
Connecting Wires to Terminals  
To Steering remote  
(KDC-W4037/KDC-W3537 : Western European countries sales area only.)  
Ê,ꢂꢃ"°Êꢀ" /  
To Kenwood disc changer/ External optional accessory  
(KDC-W4037/KDC-W3537 only)  
To connect these leads, refer to the relevant  
instruction manuals.  
FM/AM antenna input  
Antenna Cord (ISO)  
Antenna Conversion Adaptor  
(ISO–JASO) (Accessory3)  
Fuse (10A)  
Rear left output / Sub Woofer left output (White)  
Rear right output / Sub Woofer right output (Red)  
(KDC-W4037 only)  
Wiring harness  
(Accessory1)  
Connect to the terminal that  
TEL mute wire (Brown)  
is grounded when either the  
telephone rings or during  
conversation.  
Êꢃ1/ꢂ  
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.  
*°ꢀ" /  
ꢁ /°ꢀ" /  
Battery wire (Yellow)  
Ignition wire (Red)  
See next page.  
A–7 Pin (Red)  
A–4 Pin (Yellow)  
Connector A  
Connector B  
n
Ç
È
x
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Î
Ó
£
n
Ç
È
x
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Ó
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English  
29  
 
Connecting Wires to Terminals  
Connector Function Guide  
2WARNING  
Pin Numbers for Cable Colour  
Functions  
Connecting the ISO Connector  
ISO Connectors  
External Power  
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.  
A-4  
A-5  
A-7  
A-8  
Yellow  
Blue/White  
Red  
Battery  
Power Control  
Ignition (ACC)  
Earth (Ground)  
Connection  
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.  
Please be sure to reconnect the cable as shown 2 below to  
install this unit to the Volkswagen vehicles etc.  
Black  
Speaker  
Connector  
B-1  
B-2  
B-3  
B-4  
B-5  
B-6  
B-7  
B-8  
Purple  
Purple/Black  
Gray  
Gray/Black  
White  
White/Black  
Green  
Rear Right (+)  
Rear Right (–)  
Front Right (+)  
Front Right (–)  
Front Left (+)  
Front Left (–)  
Rear Left (+)  
Rear 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)  
Vehicle  
A-4 Pin (Yellow)  
Green/Black  
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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Installation/Removing the Unit  
Installation  
Removing the Unit  
Metal mounting strap  
1 Refer to the section <Removing the hard rubber  
(commercially available)  
frame> and then remove the hard rubber frame.  
Firewall or metal support  
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.  
4 Lower the removal tool toward the bottom, and  
pull out the unit halfway while pressing towards  
the inside.  
Screw (M4X8)  
(commercially available)  
Accessory2  
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).  
¤
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  
Removing the hard rubber frame  
careful not to drop it.  
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.  
Lock  
Catch  
Accessory2  
Removal tool  
2 When the upper level is removed, remove the  
lower two locations.  
The frame can be removed from the bottom side in the  
same manner.  
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31  
 
Troubleshooting Guide  
Some functions of this unit may be disabled by  
some settings made on this unit.  
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.  
!
Cannot switch to Aux source.  
AUX is not turned on. <Built-in Auxiliary input  
Setting> (page 25)  
General  
!
!
Cannot display the user of System Q.  
? The Touch Sensor Tone doesn’t sound.  
<Audio Control> (page 8) is not set.  
The preout jack is being used.  
The Touch Sensor Tone can’t be output from the  
preout jack.  
• Cannot set up the subwoofer.  
• No output from the subwoofer.  
• Cannot set up the low pass filter.  
• Preout is not set to subwoofer. <Switching  
preout> (page 22)  
Tuner source  
? Radio reception is poor.  
The car antenna is not extended.  
• <Subwoofer Output> (page 9) is not set to On.  
Pull the antenna out all the way.  
The antenna control wire is not connected.  
!
• Cannot register a security code.  
• Cannot set up Display.  
<Demonstration mode Setting> (page 25) is not  
turned off.  
Connect the wire correctly, referring to the  
section on <Connecting Wires to Terminals>  
(page 29).  
Disc source  
!
!
Cannot set up the Power-off timer.  
<Security Code> (page 20) is not set.  
? The specified disc does not play, but another one  
plays instead.  
The specified CD is quite dirty.  
Clean the CD.  
The disc is loaded in a different slot from that  
specified.  
Cannot play audio files.  
<CD Read Setting> (page 25) is set to "2".  
Eject the disc magazine and check the number  
for the specified disc.  
The disc is severely scratched.  
Try another disc instead.  
Audio file source  
? The sound skips when an Audio file is being  
played.  
The media is scratched or dirty.  
Clean the media, referring to the CD cleaning of  
the section on <Handling CDs> (page 5).  
The recording condition is bad.  
Record the media again or use another media.  
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PROTECT:  
NA FILE:  
The speaker wire has a short-circuit or  
touches the chassis of the vehicle, and then  
the protection function is activated.  
Wire or insulate the speaker cable  
properly and press the reset button. If  
the "PROTECT" code does not disappear,  
consult your nearest service center.  
The messages shown below display your  
systems condition.  
EJECT:  
• No disc magazine has been loaded in  
the changer. The disc magazine is not  
completely loaded.  
• No CD in the unit.  
An Audio file is played with a format that this  
unit can’t support.  
----  
NO DISC:  
TOC ERR:  
No disc has been loaded in the disc  
magazine.  
• No disc has been loaded in the disc  
magazine.  
COPY PRO:  
DEMO:  
A copy-protected file is played.  
----  
• The CD is quite dirty. The CD is upside-  
down. The CD is scratched a lot.  
The Demonstration mode has been selected.  
The <Demonstration mode Setting> (page  
25) is ON. Turn it OFF.  
E-05:  
The disc is unreadable.  
BLANK:  
NO TRACK:  
Nothing has been recorded on the MD.  
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.  
NO PANEL:  
E-77:  
The faceplate of the slave unit being  
connected to this unit has been removed.  
The unit is malfunctioning for some reason.  
Press the reset button on the unit. If the  
"E-77" code does not disappear, consult  
your nearest service center.  
E-99:  
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.  
WAITING:  
LOAD:  
Radio text data is being received.  
Discs are being exchanged in the Disc  
changer.  
READING:  
IN (Blink):  
The unit is reading the data on the disc.  
The CD player section is not operating  
properly.  
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.  
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33  
 
Specifications  
Specifications subject to change without notice.  
FM tuner section  
Audio section  
Frequency range (50 kHz space)  
: 87.5 MHz – 108.0 MHz  
Maximum output power  
: 50 W x 4  
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  
: 45 W x 4 (KDC-W237)  
Output power (DIN 45324, +B=14.4V)  
: 30 W x 4  
: 28 W x 4 (KDC-W237)  
Speaker Impedance  
: 4 – 8 Ω  
Tone action  
Bass : 100 Hz 8 dB  
Selectivity (DIN) ( 400 kHz)  
: ≥ 80 dB  
Stereo separation (1 kHz)  
: 35 dB  
Middle : 1 kHz 8 dB  
Treble : 10 kHz 8 dB  
Preout level / Load (during disc play) (KDC-W4037)  
: 2000 mV/10 kΩ  
Preout impedance (during disc play) (KDC-W4037)  
: ≤ 600 Ω  
MW tuner section  
Frequency range (9 kHz space)  
: 531 kHz – 1611 kHz  
Auxiliary input  
Usable sensitivity (S/N = 20dB)  
: 25 μV  
Frequency response ( 1 dB)  
: 20 Hz – 20 kHz  
Input Maximum Voltage  
: 1200 mV  
Input Impedance  
: 100 kΩ  
LW tuner section  
Frequency range  
: 153 kHz – 281 kHz  
Usable sensitivity (S/N = 20dB)  
: 45 μV  
General  
Operating voltage (11 – 16V allowable)  
CD player section  
Laser diode  
: GaAlAs  
Digital filter (D/A)  
: 8 Times Over Sampling  
D/A Converter  
: 1 Bit  
: 14.4 V  
Current consumption  
: 10 A  
Installation Size (W x H x D)  
: 182 x 53 x 155 mm  
Weight  
: 1.40 kg  
Spindle speed  
: 500 – 200 rpm (CLV)  
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)  
: 105 dB  
Dynamic range  
: 93 dB  
MP3 decode  
: Compliant with MPEG-1/2 Audio Layer-3  
WMA decode  
: Compliant with Windows Media Audio  
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