Kenwood KDC-BT31U User Manual
KDC-BT41U KDC-BT31U KDC-4751SD
CD-RECEIVER
INSTRUCTION MANUAL
© 2010 Kenwood Corporation All Rights Reserved. |
B64-4799-10/01 (EW/E0/E2W/E20) |
CONTENTS
Safety |
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Operation of Hands-Free Phoning 16 |
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Maintenance |
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Getting Started |
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Preparation |
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Making a Call |
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Receiving a Call |
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How to attach/detach the faceplate |
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During a Call |
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How to reset your unit |
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Call Waiting |
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Remote controller |
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Downloading the Phone Book |
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Basic Operations |
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Bluetooth Setup |
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Muting upon the reception of a phone call (KDC-4751SD only)
Getting Started |
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Canceling the display demonstration |
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Setting the demonstration mode |
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Adjusting the clock |
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Initial settings before operations |
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Listening to the Radio |
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Adjust [SETTINGS] mode settings |
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Listening to a Disc/ USB/ SD/ iPod 10
Start playing a disc
Start playing a USB device or iPod Removing the USB device or iPod Start playing an SD
Removing the SD card Selecting Repeat Play Selecting Random Play All Random Play Selecting Scan Play
Selecting a folder/track/file Alphabet Search for iPod My Playlist for iPod
iPod control by Hand mode Adjust [SETTINGS] mode settings
Listening to the other external |
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components |
15 |
Easy Pairing function
Registering Bluetooth Device (Pairing) Selecting the Bluetooth Device Setting a Voice Command
Bluetooth Setup
SMS (Short Message Service) |
24 |
Downloading the SMS |
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Display the SMS |
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Function settings |
26 |
Installation/connection |
28 |
Troubleshooting |
33 |
Specifications |
35 |
2 English
Safety
WARNING
Stop the car before operating the unit.
Important to know...
■To prevent a short circuit, never put or leave any metallic objects (such as coins or metal tools) inside the unit.
■Caution: Adjust the volume so that you can hear sounds outside the car. Driving with the volume too high may cause an accident.
■Condensation: When the car is airconditioned, moisture may collect on the laser lens. This may cause disc read errors. In this case, remove the disc and wait for the moisture to evaporate.
■The illustrations in this manual are examples used to explain more clearly how the controls are used. Therefore, what appears on the illustrations may differ from what appears on the actual equipment.
■If you experience problems during installation, consult your Kenwood dealer.
■When you purchase external components, check with your Kenwood dealer to make sure that they work with your model and in your area.
Maintenance
Cleaning the unit: Wipe off the dirt on the panel with a dry silicon or soft cloth. Failure to observe this precaution may result in damage to the monitor or unit.
Cleaning the connector: Wipe off dirt on the connector of the unit and faceplate. Use a cotton swab or cloth.
Preparation
How to attach/detach the faceplate
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2
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■Do not expose the faceplate to direct sunlight, excessive heat, or humidity. Also avoid places with too much dust or the possibility of water splashing.
■Keep the faceplate in its casing while detached.
■The faceplate is a precision piece of equipment and can be damaged by shocks or jolts.
■To prevent deterioration, do not touch the terminals of the unit and faceplate with your fingers.
How to reset your unit
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If this unit fails to operate |
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properly, press the reset |
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button. |
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2 The unit returns to factory |
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settings when the reset |
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button is pressed. |
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Reset button
Remote controller
KDC-BT41U/ KDC-4751SD can also be remotely controlled with an optionally purchased remote controller.
English 3
Basic Operations
Display window |
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KDC-BT41U/ KDC-4751SD |
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KDC-BT31U |
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Volume knob |
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Ejects the disc |
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Detaches the faceplate
The following indicator lights up when...
ST: A stereo broadcast is received.
RDS: Radio Data System service is available. TI: Traffic Information function is turned on. IN: A disc is in the unit.
EQ: [SYSTEM Q] is set to an EQ mode other than [NATURAL]. (page 26)
B.BOOST: [BASS BOOST] is set to [1] or [2]. (page 26)
:Indicates that the Music Search mode is selected now.
BT: Bluetooth cell-phone connection status.
The illustration and button names used for explanation in this manual are of KDC-BT41U/ KDC-BT31U (unless mentioned otherwise). Refer to the table below for the difference:
KDC-BT41U/ KDC-BT31U
Loading slot
USB terminal 
Auxiliary input jack 
Slide open the cover
KDC-4751SD
4 English
When you press or hold the following button(s)...
Main unit |
General operation |
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■ Turns on. |
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■ Turns off if pressed and held. |
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SRC |
■ Selects the available sources (TUNER, USB or iPod, SD, CD, AUX, STANDBY), if |
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the power is turned on. |
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• If the source is ready, playback also starts. “iPod”, “SD” and “CD” are selectable only |
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when an iPod is connected, an SD card is inserted or a disc is loaded. |
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Volume knob |
■ Adjusts the volume level. |
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(turn) |
■ Selects items. |
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Volume knob |
■ Confirms selection. |
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(press) |
■ Enters [FUNCTION] settings. |
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BAND |
■ Selects the FM bands (FM1/ FM2/ FM3) or MW/ LW. |
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■ Selects the next folder. |
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6 (38) |
Pauses/resumes playback of a disc/ USB device/ SD/ iPod. |
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■ Searches for radio station. |
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4 / ¢ |
■ Selects track/file. |
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■ Fast-forwards/reverses tracks/files if pressed and held. |
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■ Changes the display information. |
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SCRL DISP |
■ Scrolls the display information if pressed and held. |
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■ Enters clock adjustment mode directly (page 6) if pressed and held while in |
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clock display screen. |
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KDC-BT41U/ KDC-BT31U only: |
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■ Enters Bluetooth mode. (page 16) |
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■ Press to answer an incoming call. |
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■ Enters Bluetooth easy pairing mode if pressed and held. (page 19) |
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SD |
KDC-4751SD only: |
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Selects “SD” source. |
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■ Returns to the previous item. |
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■ Exit from setting mode. |
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• Press and hold on the main unit will also exit from the setting mode. |
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Muting upon the reception of a phone call (KDC-4751SD only)
To use this feature, connect the MUTE lead to your telephone using a commercial telephone accessory. (See “Installation Manual” on a separate volume.)
When a call comes in, “CALL” appears.
■The audio system pauses.
■To continue listen to the audio system during a call, press 
SRC. “CALL” disappear and the audio system resumes.
When a call ends, “CALL” disappear.
■ The audio system resumes.
English 5
Getting Started
Canceling the display |
Adjusting the clock |
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demonstration |
1 |
Press the volume knob to enter |
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The display demonstration is always turned |
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[FUNCTION] mode. |
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on unless you cancel it. |
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Turn the volume knob to select |
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[SETTINGS], then press to enter. |
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When you turn on the power (or after you |
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Turn the volume knob to select [CLOCK], |
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reset the unit), the display shows: |
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then press to enter. |
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[CANCEL DEMO] \ [PRESS] \ [VOLUME |
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Turn the volume knob to select [CLOCK |
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KNOB] |
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ADJUST/ CLOCK ADJ], then press to |
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1 Press the volume knob. |
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enter. |
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[YES] is selected as the initial setup. |
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Clock hour flashes on the display. |
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2 Press the volume knob again to confirm. |
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Turn the volume knob to adjust the hour, |
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[DEMO OFF] appears. |
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then press to enter minute adjustment. |
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■ If no operation is done for about 15 seconds |
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Clock minutes flashes on the display. |
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or if you turn the volume knob to select |
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Turn the volume knob to adjust the |
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[NO] in step 2, [DEMO MODE] appears and |
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minute, then press to confirm. |
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the display demonstration starts. |
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Press 4 / ¢ to move between the |
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Setting the demonstration mode |
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hour and minute adjustment. |
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7 |
Hold to finish the procedure. |
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1 |
Press the volume knob to enter |
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[FUNCTION]. |
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Turn the volume knob to select [DEMO |
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MODE], then press to enter. |
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Turn the volume knob to select [ON] or |
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[OFF]. |
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If [ON] is selected, display demonstration |
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starts if no operation is done for about 20 |
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seconds. |
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Hold to finish the procedure. |
6 English
Initial settings before operations
1Press 
SRC to enter [STANDBY] mode.
2Press the volume knob to enter [FUNCTION] mode.
3Turn the volume knob to select [INITIAL SET], then press to enter.
4Turn the volume knob to make a selection, then press to confirm.
See table below for selection.
5Hold
to finish the procedure.
Item |
Selectable setting (Preset: *) |
PRESET TYPE |
NORMAL/ NORM *: Memorizes one station for each preset button in each band (FM1/ FM2/ FM3/ MW/ LW). ; |
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MIX: Memorizes one station for each preset button regardless of the selected band (FM1/ FM2/ FM3/ MW/ LW). |
KEY BEEP |
ON */ OFF: Activates/deactivates the keypress tone. |
RUSSIAN SET |
ON: Folder name, file name, song title, artist name, album name are displayed in Russian (if applicable). ; |
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OFF *: Cancels. |
P-OFF WAIT |
Sets the duration when the unit will automatically turns off (while in standby mode) to save the battery. |
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––– : Cancels ; 20M *: 20 minutes ; 40M: 40 minutes ; 60M: 60 minutes |
BUILT-IN AUX/ |
ON1 *: Outputs sound of the connected external component through the car speakers when “AUX” is selected as |
BUILTIN AUX |
the source. ; ON2: Outputs sound from the connected external component when “AUX” is selected as the source. |
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When you turn on the power, the sound attenuates (to prevent noise when no external component is connected). |
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Turn the volume knob clockwise to return to the previous volume level. ; OFF: Disables “AUX” in source selection. |
CD READ |
1*: Automatically distinguishes between audio file disc and music CD. ; 2: Forces to play as a music CD. No sound |
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can be heard if an audio file disc is played. |
SWITCH PREOUT/ |
REAR */ SUB-W: Selects whether rear speakers or a subwoofer are connected to the line out terminals on the |
SWITCH PRE |
rear of the unit (through an external amplifier). |
SP SELECT |
OFF */ 5/4/ 6 × 9/6/ OEM: Selects the speaker size for optimum performance. |
F/W UP xx.xx |
YES: Starts upgrading the firmware. ; NO *: Cancels (upgrading is not activated). |
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For details on how to update the firmware, see: www.kenwood.com/cs/ce/ |
English 7
Listening to the Radio
Hold to turn on or off the Traffic Information function (not applicable if “MW/LW” is selected).
■Hold for about 2 seconds to memorize the current station or the selected Program Type. (Refer to [PTY SEARCH] on the table below to select the Program Type.)
■Press briefly to recall memorized station (or Program Type after entering the PTY search mode).
1Press 
SRC to select “TUNER”.
2Press BAND repeatedly to select a band (FM1, FM2, FM3, MW/LW).
3Press 4 / ¢ to search for a station.
Adjust [SETTINGS] mode settings
While listening to the radio...
1Press the volume knob to enter [FUNCTION] mode.
2Turn the volume knob to select [SETTINGS], then press to enter.
3Turn the volume knob to make a selection, then press to confirm.
See table below for selection.
4Hold
to finish the procedure.
Item |
Selectable setting (Preset: *) |
LOCAL SEEK |
ON: Searches only FM stations with good reception. ; OFF *: Cancels. |
SEEK MODE |
Selects the tuning mode for 4/ ¢buttons. |
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AUTO1 *: Automatically search for a station. ; AUTO2: Search in the order of the stations in the preset memory. ; |
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MANUAL: Manually search for a station. |
AUTO MEMORY |
YES: Automatically starts memorizing 6 stations with good reception. ; NO *: Cancels (automatic memorizing is |
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not activated). (Selectable only if [NORMAL/ NORM] is selected for [PRESET TYPE].) (page 7) |
MONO SET |
ON: Improves the FM reception (but the stereo effect may be lost). ; OFF *: Cancels (stereo effect resumes). |
PTY SEARCH |
Selects the available Program Type (page 9). Then, press 4/ ¢to start searching. |
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Press the volume knob to enter PTY language selection. Turn the volume knob to select the PTY language |
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(ENGLISH */ FRENCH/ GERMAN), then press to confirm. |
NEWS SET |
00M – 90M: Sets the time for receiving the next news bulletin. ; OFF *: Cancels. |
AF SET |
ON *: Automatically searches for another station broadcasting the same program in the same Radio Data System |
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network with better reception when the current reception is poor. ; OFF: Cancels. |
REGIONAL |
ON *: Switches to another station only in the specific region using the “AF” control. ; OFF: Cancels. |
8 English
Item |
Selectable setting (Preset: *) |
AUTO TP SEEK/ |
ON *: Automatically searches for a station with better reception when the traffic information’s reception is poor. |
ATP SEEK |
; OFF: Cancels. |
■[NEWS SET/ AF SET/ REGIONAL/ AUTO TP SEEK/ ATP SEEK] is selectable only when the source is “FM”. If other playback source is selected, these settings are selectable under [TUNER SET] item. (page 27)
■Available Program Type:
SPEECH; MUSIC; NEWS; AFFAIRS; INFO; SPORT; EDUCATE; DRAMA; CULTURE; SCIENCE; VARIED; POP M (music); ROCK M (music); EASY M (music); LIGHT M (music); CLASSICS; OTHER M (music); WEATHER; FINANCE; CHILDREN; SOCIAL; RELIGION; PHONE IN; TRAVEL; LEISURE; JAZZ; COUNTRY; NATION M (music); OLDIES; FOLK M (music); DOCUMENT
The unit will search for the Program type categorized under [SPEECH] or [MUSIC] if selected. [SPEECH] : Roman typeface item. ; [MUSIC] : Italic typeface item.
■The Radio Data System feature won’t work where the service is not supported by any broadcasting station.
■If the volume is adjusted during reception of traffic information, the adjusted volume is memorized automatically. It will be applied the next time Traffic Information function is turned on.
English 9
Listening to a Disc/ USB/ SD/ iPod
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Ejects the disc. |
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Detach the faceplate |
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(“NO DISC” appears and “IN” indicator goes off.) |
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■Press to select track/file.
■Hold to fast-forwards/reverses.
Press to select next folder of Audio File/ iPod.
Start playing a disc
USB terminal
Press to pause. Press again to resume playback.
1Press 
SRC to turn on the power.
2Insert a disc into the loading slot.
Playback starts automatically.
Start playing a USB device or iPod
Apple iPod (commercially available)
1Press 
SRC to turn on the power.
2Slide open the cover.
3Connect a USB device or iPod to the USB terminal.
The source automatically switches, and playback starts.
USB device (commercially available)
CA-U1EX
(optional accessory)
KCA-iP102 
(optional accessory)
Removing the USB device or iPod
1Press 
SRC to select a source other than “USB” or “iPod”.
2Remove the USB device or iPod.
10 English
Start playing an SD
• Function of KDC-4751SD.
1Press 
SRC to turn on the power.
2Press the Release button to Detach the faceplate.
3Hold the SD card with the label side up and the notched section on the right, and insert it into the slot until it clicks.
4Reattaching the Faceplate
5Press 
SRC to select “SD”.
SD card
(commercially available)
Removing the SD card
• Function of KDC-4751SD.
1Press the Release button to Detach the faceplate.
2Push the SD card until it clicks and then remove your finger from the card.
The card pops up so that you can pull it out with your fingers.
3Reattaching the Faceplate.
Selecting Repeat Play
Press number button 4 (REP) repeatedly to make a selection.
Audio CD : TRACK/TRAC (track) REPEAT, REPEAT OFF
Audio File :
FILE REPEAT, FOLDER/FOLD (folder) REPEAT, REPEAT OFF
iPod :
FILE REPEAT, REPEAT OFF
Selecting Random Play
Press number button 3 (ALL RDM)
repeatedly to make a selection.
Audio CD : DISC RANDOM, RANDOM OFF
Audio File/ iPod :
FOLDER/FOLD (folder) RANDOM,
RANDOM OFF
All Random Play
Press and hold number button
3 (ALL RDM).
Pressing this button again plays songs in the normal mode starting.
Audio File/ iPod :
ALL RANDOM, RANDOM OFF
■ Changes the iPod browsing item to “songs”.
Selecting Scan Play
Press number button 2 (SCAN)
repeatedly to make a selection.
Audio CD : TRACK/TRAC SCAN, SCAN OFF
Audio File : FILE SCAN, SCAN OFF
■If scan play is selected, the unit starts playing the first 10-second intro of the music in the disc/current folder.
If “SCAN OFF” is selected, the unit resumes normal play of the current song.
Selecting a folder/track/file
1Press
to enter Music Search mode.
“SEARCH” appears, then the current file name appears on the display.
2Turn the volume knob to select a folder/ track/ file, then press to confirm.
■To skips songs, press 4/ ¢. Holding 4/ ¢ skips songs at 10% regardless of the setting made. (page 13)
This operation is effective only for the iPod or Kenwood Music Editor media.
■To return to the root folder (audio file), top menu (iPod) or first track (audio CD), press
BAND.
■To return to the previous folder, press 
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■To cancel the Music Search mode, press and hold 
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■< or > on the display indicates that preceded/next item is available.
English 11
Alphabet Search for iPod
• Function of KDC-BT41U/ KDC-4751SD.
1Press
to enter Music Search mode.
“SEARCH” appears.
2Turn the volume knob to select a category, then press to confirm.
3Press
again to enter alphabet search mode.
“SEARCH <– – –>” appears.
4Turn the volume knob to select the character to be searched for.
5Press 4 / ¢ to move to the entry position.
You can enter up to three characters.
6Press the volume knob to start searching.
After this step, see step 2 of <Selecting a folder/track/file> (page 11) to select a song.
■To return to the Music Search mode, press 
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■To cancel the Music Search mode, press and hold
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■A longer searching time is required if there are many songs or playlists in the iPod.
■To search for a character other than A to Z and 0 to 9, enter only “ * ”.
■The article (a, an, the) of songs name will be skipped during search.
My Playlist for iPod
• Function of KDC-BT41U/ KDC-4751SD.
Registering songs in the playlist
1Select and play the song you want to register. (page 11)
2Press and hold number button
5 (MEMO MY LIST) to register.
“## STORED” (registration number) appears. You can register up to 10 songs. “MEMORY FULL” appears, if you try to register the eleventh song.
■If you attempt to register a song from a different iPod, “NO INFO” followed by “MPLIST DELETE” appears.
To delete the playlist, turn the volume knob to select “YES”, then press to confirm.
■You can also register the song displayed in the Music Search mode by following the same procedure.
■Do not register Podcasts.
Playing a song on the playlist
1Press number button
5 (MEMO MY LIST) to display the playlist.
“MY PLAYLIST” appears.
2Turn the volume knob to select the song you want, then press to confirm.
■Random play cannot be performed during playback of a song in the playlist.
Deleting a song on the playlist
1Press number button 5 (MEMO MY LIST) to display the playlist.
“MY PLAYLIST” appears.
2Turn the volume knob to select the song you want to delete, then press and hold the volume knob.
3Turn the volume knob to select [DELETE ONE] or [DELETE ALL], then press to confirm.
Select “DELETE ALL” to delete all the songs in the playlist.
4Turn the volume knob to select [YES], then press to confirm.
“COMPLETED” appears.
iPod control by Hand mode
• Function of KDC-BT41U/ KDC-4751SD.
Press number button 1 (iPod) repeatedly to make a selection.
HANDS ON :
Control iPod from the iPod.
■This mode is not compatible with music information display. The display will show “iPod MODE”.
HANDS OFF: Control iPod from the unit.
12 English
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