Kenwood KDC-4251URY Preparation, How to attach/detach the faceplate, How to reset your unit

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Preparation

How to attach/detach the faceplate

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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

If this unit fails to operate properly, press the reset button.

The unit returns to factory settings when the reset button is pressed.

Reset button

Initial settings before operations

1Press SRC to enter [STANDBY] mode.

2 Press the volume knob to enter [FUNCTION] mode.

3 Turn the volume knob to select [INITIAL SET], then press to enter.

4 Turn the vol me knob to make a selection, then press to confirm. See table below for selection.

5 Hold to finish the procedure.

Item

Selectable setting (Preset: *)

PRESET TYPE

NORMAL/ NORM*: Memorizes ne stati n f r each preset button in each band (FM1/ FM2/ FM3/ MW/

 

LW). ; MIX: Memorizes one station for ea h 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). ;

 

OFF*: Cancels.

P-OFF WAIT

Sets the duration when the unit will automatically turns off (while in standby mode) to save the battery.

 

––––: 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

BUILTIN AUX

selected as the source. ; ON2: Outputs sound from the connected external component when “AUX” is

 

selected as the source. When you turn on the power, the sound attenuates (to prevent noise when no

 

external component is connected). 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 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

SWITCH PRE

the 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).

 

For details on how to update the firmware, see: www.kenwood.com/cs/ce/

[SWITCH PREOUT/ SWITCH PRE] is selectable only with KDC-4051UG/ KDC-4051UR/ KDC-415UA/ KDC-415UR/ KDC-4251URY/ KDC-4551UB/ KDC-455UW/ KDC-4651URY.

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Autogood products Internet store “130”

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Contents KDC-455UW KDC-4651URY Autogood products Internet storeContents Marking of products using lasers Muting upon the reception of a phone callManufacturer EU Representative’sHow to attach/detach the faceplate How to reset your unitInitial settings before operations Selectable setting PresetBasic operations RDSSRC ButtonAbout Kenwood Music Editor Canceling the display demonstration Setting the demonstration modeAdjusting the clock MaintenanceAdjust Settings mode settings Listening to the radioAuto MemoryListening to the ther external components RDS REGATP Seek Available Program TypeConnecting a USB device Connecting an iPodListening to a disc/ USB device/ iPod Start playing a discSelecting Repeat Play Selecting Random PlaySelecting Scan Play Selecting a folder/track/fileIPod control by Hand Mode Function modeAlphabet Search and My Playlist for iPod Functions of KDC-4551UB/ KDC-455UW/ KDC-4651URY with iPodFunction settings YES Deletes the saved My Playlist. NO* CancelsAbout compatible iPod/iPhone System QSettings Using the remote controller RC-405 Equipped for KDC-4651URYPreparation Basic operationsTroubleshooting Symptom Remedy/CauseBasic procedure Installation/connectionPart list Wiring connection Red Ignition wire Yellow Battery wire Black Ground wireFor KDC-4051URY/ KDC-4451UQ Fuse 10 a Antenna terminal JasoInstalling the unit Removing the unitDashboard of your car About Audio fileSpecifications

KDC-4051URY, KDC-415UA, KDC-455UW, KDC-415UR, KDC-4051UR specifications

The Kenwood KDC series of car audio receivers, including the KDC-4251URY, KDC-4051UG, KDC-4451UQ, KDC-4651URY, and KDC-4551UB, represents a significant advancement in in-car entertainment technology. Each model offers a set of unique features while adhering to Kenwood's reputation for high-quality audio performance and user-friendly design.

The KDC-4251URY is noted for its powerful 50W x 4 amplifier, providing ample sound for any vehicle. This model incorporates a high-quality FM/AM tuner, ensuring crystal-clear reception. One of its standout features is the Enhanced Audio Control, which allows users to fine-tune sound settings, including a 3-band parametric equalizer. Furthermore, it supports USB playback for both MP3 and WMA formats, giving users the flexibility to enjoy their music library seamlessly.

The KDC-4051UG focuses on connectivity and versatility. This model also includes a 50W x 4 amplifier and features a front USB port, which is ideal for connecting smartphones and USB drives. Its Bluetooth integration offers hands-free calling and wireless audio streaming, making it a practical choice for technology-savvy users. Enhanced compatibility with various audio formats ensures that most media libraries are supported.

The KDC-4451UQ takes the user experience a notch higher with its dual USB ports, allowing for simultaneous connections. Additionally, it features a built-in Alexa voice control compatibility, offering drivers a hands-free way to manage their playlists and receive directions without taking their eyes off the road. The variable color illumination provides customizable aesthetics to match any vehicle interior.

The KDC-4651URY comes equipped with a larger display, which enhances visibility and ease of use, especially while driving. It supports HD Radio, significantly improving sound quality for digital broadcasts. Additionally, it features advanced sound retriever technology that enhances compressed audio files, making them sound clearer and more dynamic.

Finally, the KDC-4551UB stands out for its compatibility with Android Auto and Apple CarPlay, allowing for seamless integration with mobile devices. It has a rear camera input for added safety and provides users with a clearer view and additional assistance while reversing.

Each of these Kenwood models showcases a commitment to sound quality, advanced technology, and user-friendly interfaces, making them excellent choices for anyone looking to upgrade their in-car audio experience. Whether it’s about enjoying personalized playlists, making hands-free calls, or simply experiencing superior audio clarity, the Kenwood KDC series caters to a variety of needs and preferences.
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