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Kenwood DNX7140 Support Question

Kenwood DNX7140 Support Question

Find answers below for this question about Kenwood DNX7140 - Navigation System With DVD player.
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Question posted by liled1968 on October 30th, 2020

Kenwood Sterio

I bought a kenwood sterio second hand and its locked I need the security codes to unlock it it is a kenwood DNX7140

Current Answers

Answer #1: Posted by techyagent on October 31st, 2020 4:44 AM
This answer was accepted by the poster of the original question.
techyagent

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Common Kenwood Security Codes

Many Kenwood radios are configured with the same security codes:

  • KCAR - This seems to be a "backdoor" to some Kenwood models.
  • 3051 - This is the security code that is printed in many Kenwood model manuals.
  • 1234 - This is a security code that Kenwood owners commonly choose.

Entering the Kenwood Security Code

If the car battery fails or is disconnected, the Kenwood will ask for the security coThe procedure for entering the security code differs on various models of Kenwood car stereos. Here are three of the more common procedures:

Type 1
  • During the code request mode, while pressing the DISP key, press and hold the Volume UP or DOWN key for 3 seconds until the "..." display disappears.
  • Enter the security code with the Kenwood remote.
Type 2
  • Press the "Auto" button and "Track up" on the face of radio at the same time until the four dash lines disappear.
  • Enter the security code with the Kenwood remote.
Type 3: Model# DPX-4020 and DPX-4030
  • Press and hold the 1 then the 6 preset keys until the display shows the letter C.
  • Enter the security code with the Kenwood remote.
Entering Letters with a Kenwood Remote

To enter a letter with a Kenwood remote, press a button once for the first letter, twice for the second letter, and three times for the third letter. Press the Track Up or Next Track key to send the letter.

To send the letter A, press the 2 key once then press the Track Up key. To send the letter B, press the 2 key twice then press the Track up key.

Finally, when all of the letters are entered, press and hold the Track Up button for 3 seconds.

The key sequence to enter the security code KCAR is:

  • 5
  • 5
  • Track Up
  • 2
  • 2
  • 2
  • Track Up
  • 2
  • Track Up
  • 7
  • 7
  • Track Up

The Kenwood should then enter tuner mode.

A Security Code Bug in Some Kenwoods

There is a reported bug in the security code handling of some Kenwood stereos. In models with the bug, the security code is stored incorrectly. The workaround is to enter the wrong security code.

In models with this bug, decrement the third character of the security code by one. For example, if the security code is 1111, enter it as 1101. If the security code is 9999, enter 9989.

Finding the Kenwood Security Code

There are backdoor codes for each Kenwood car stereo, based on the model and serial numbers.

Find out how to reset the code or what the common backdoor codes are here (among solutions).

Sending the RadioBack to Kenwood

If all else fails, send the stereo back to Kenwood to have the security code reset.


Thanks


Techygirl

Related Kenwood DNX7140 Manual Pages

Owner's Manual (pdf) - Page 1

... back of the unit, in the spaces designated on the product. Model DNX7140/DNX7000EX/DDX714/DDX7034BT Serial number US Residents Only Register Online Register your new GPS Navigation System/DVD Receiver. Refer to read through this instruction manual. For your Kenwood dealer for information or service on the warranty card, and in the space...
Owner's Manual (pdf) - Page 2

... panel 10 Getting Started 12 How to Display the Navigation Screen 12 How to Select the Source 12 How to Set a Medium / a Device 13 Basic Operation 14 How to Display the Source ... DVD-VIDEO Disc Menu 20 DVD-VR Menu Control 21 Video CD Zoom Control 21 Music Disc/ Audio File Listening & Video File/ Picture File Watching 22 Source Control Screen 22 List Select 23 USB device...
Owner's Manual (pdf) - Page 3

... Setup 65 Security Setup 66 ...Navigation] Navigation Setup 75 [Audio SETUP] DSP Bypass Control 76 Speaker Setup 76 Car Type (DTA) Setup 77 [DVD SETUP] DVD Setup 78 DVD Language Setup 79 DVD Parental Level Setup 79 Disc Setup 80 [USB SETUP] USB Setup 80 [iPod SETUP] iPod Setup 81 [SIRIUS SETUP] SIRIUS Parental Code Setup 81 SIRIUS Parental Lock... Up the Hands-Free Phone...
Owner's Manual (pdf) - Page 5

...: Function of DVD-VR playback. The initial value of models included in different model groups, the model groups are described as follows: DNX models DNX7140, DNX7000EX DDX ...Video CD playback. : Function of CD (CD-DA) playback. : Function of Audio File playback. : Function of MPEG file playback. : Function of JPEG file playback. : Function of Disc (DVD, CD) media. : Function of USB device...
Owner's Manual (pdf) - Page 6

... Lens Fogging When you turn on the car heater in cold weather, dew or condensation... model and in the disc player of the unit. Do not dispose of mercury. For how to remove the USB device, see (page 13). &#... This product includes a non-replaceable lamp that conform to reset your Kenwood dealer. 6 DNX7140/DNX7000EX/DDX714/DDX7034BT Handling discs • Do not touch the recording surface...
Owner's Manual (pdf) - Page 7

..., 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...Standard Support Remark types DVD DVD Video DVD Audio DVD-VR DVD-R DVD-RW ‡ × ‡ Not compatible with CPRM. ‡ MP3/WMA/AAC/WAV/ ‡ JPEG/MPEG Playback Multi-border/Multisession/ DVD+R DVD+RW ‡ ...
Owner's Manual (pdf) - Page 8

... from driving your vehicle properly. 8 DNX7140/DNX7000EX/DDX714/DDX7034BT • You cannot connect a USB device via a USB hub and Multi Card Reader. • Take backups of the navigation unit. See . However, the power of the USB device. In this case, "RESUMING" is used for flash memories and digital audio players which are disabled and changed...
Owner's Manual (pdf) - Page 9

... shown in the following marks will appear on a standard TV set screen (4:3) with any DVD player. Prohibition Mark Discs with limited period of use Do not leave discs with a limited period... on the screen. Indicates the number of the screen (letter box). Region codes in the world The DVD players are given a region code according to the country or area it from multiple angles, you may be ...
Owner's Manual (pdf) - Page 12

... navigation units. 12 DNX7140/DNX7000EX/DDX714/DDX7034BT The Source Select screen appears. For how to operate each source, see the Navigation Instruction Manual. ⁄ • For DDX models, an optional navigation system needs to set . DDX models TOP SRC The navigation screen appears. • For how to be selected from the Source Select screen. DVD-VIDEO/ DVD-VR/ Video...
Owner's Manual (pdf) - Page 16

.... 2 Displays Menu control screen (DVD-VIDEO, DVD-VR source), Picture control buttons (sources with picture files), or Zoom control buttons (Video CD). Touch the icon of Visual... Select screen appears. The function of each area is cleared automatically after approximately 5 seconds. 16 DNX7140/DNX7000EX/DDX714/DDX7034BT The screen has 4 function areas. The Playback screen of each source. * ...
Owner's Manual (pdf) - Page 63

... the Setup Menu Screen [SETUP Memory] 68 [Display] [Background] 69 [Color] 70 [Screen Adjust] 71 [Bluetooth SETUP] 71 [SIRIUS SETUP] 81 [DVD SETUP] 78 [iPod SETUP] 81 [USB SETUP] 80 [TV SETUP] 83 [AV-IN SETUP] 74 [Navigation] 75 In this manual, the above selection is displayed in reverse video for the locked option.
Owner's Manual (pdf) - Page 71

...63) 2 Set each item Registering Bluetooth Unit Registers the Bluetooth unit to the Navigation Day/Night display setting. ⁄ • In this Screen Adjust screen, ...Device List screen [Bright] Brightness Control [Contrast] Contrast Control [Black] Black Level Adjustment [Dimmer] Dimmer Mode Setup ( "ON") "ON": The display dims. "OFF": The display doesn't dim. Setups for videos such as DVD...
Owner's Manual (pdf) - Page 79

..." screen. [Enter] Sets the language and returns to the "DVD SETUP" screen. (It appears after you have entered a language code.) 1 Enters a code number. [Cancel] Cancels the current setup and returns to the "DVD SETUP" screen. [Level] Indicates the present parental lock level. [Enter] Determines the code number and displays the Parental Level setup screen. [Clear] Clears...
Owner's Manual (pdf) - Page 84

...batteries with the + and - with the player integrated in this mode when playing DVDs or CDs etc. poles aligned properly, following ...switch. TV mode Switch to this mode when controlling the Navigation unit. ⁄ • The position of the remote ...unit. Insert the batteries with new ones. Remote Controller For DNX7140/ DNX7000EX/ DDX7034BT : This unit can be operated using ...
Owner's Manual (pdf) - Page 91

... ON. "1 SUB" Identifies the secondary audio output of the Bluetooth hands-free unit. (Orange: Connected. "PLST" Identifies the Play list ..."RDM" Indicates that the Chapter repeat function is ON. DVD-Video "C-REP" Indicates that the Random function is ON. "...set to Auto1. Orange: Error at the disc player.) "MOVIE" Identifies the video file. "T-REP" Indicates that the Repeat function ...
Owner's Manual (pdf) - Page 94

...The connected USB device contains no iPod/Bluetooth audio player is activated and you set. The unit does not support the iPod. ➡ Refer to (page 8). 94 DNX7140/DNX7000EX/DDX714/DDX7034BT... "Region Code Error" : The disc you wanted to play has a region code that cannot be able to USB again. "No Device" (USB device): The USB device is selected as a source although no USB device is the...
Owner's Manual (pdf) - Page 96

... Tube DVD player section D/A Converter : 24 bit Audio Decoder : Linear PCM/ Dolby Digital/ dts/ MP3/ WMA/ AAC/ WAV Video Decoder ... (dB) : 98 dB (DVD-Video 96 kHz) Dynamic Range : 98 dB (DVD-Video 96 kHz) Disc Format : DVD-Video/ VIDEO-CD/ CD-DA Sampling Frequency...Hands Free Profile), SPP (Serial Port Profile), HSP (Headset Profile), A2DP (Advanced Audio Distribution Profile), AVRCP (Audio/Video...
Owner's Manual (pdf) - Page 100

... owned by the Bluetooth SIG, Inc. iPhone is a trademark of DVD Format/Logo Licensing Corporation registered in the U.S. Use of this copyright.... The "AAC" logo is intended for this device or its compliance with iPhone" means that an ...product is not responsible for iPod" means that is protected by Kenwood Corporation is prohibited. "Made for the operation of Apple Inc...
Installation Manual (pdf) - Page 4

... telephone rings or during conversation. ⁄ To connect the Kenwood navigation system, consult your car is not in turn may start a fire. Connection Ignition key...wire (yellow) to the car chassis (ground), you need to an exclusive remote adapter (not supplied) matches your navigation manual. When using the ... DNX7140/DNX7000EX/DDX714/DDX7034BT Always connect those wires to the vehicle's ...
Installation Manual (pdf) - Page 10

... Brackets Accessory 8 (M5x6mm) or Accessory 9 (M5x7mm) Car Bracket 10 | DNX7140/DNX7000EX/DDX714/DDX7034BT Accessory 8 (M5x6mm) or Accessory 9 (M5x7mm) If the unit is installed securely in place. ⁄ Make sure that the unit is unstable, it may malfunction (eg, the sound may skip). Installation for Monitor/Player Unit Bend the tabs of the mounting sleeve...

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