Question about Kenwood KDC-MP7028 CD Player

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My kenwood problem

I enter my password and says approved then when i try to do anything turns off have to replug the rear plug and start again password is not working or what???

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Password is working, but the radio seems to be going into protect mode and shutting down as soon as the main power to the radio is activated. This could be a bad power amp IC inside the radio or some other bad part causing it. No way to know for sure unless it can be put on a workbench and do some troubleshooting with a multimeter. But the most likely problem is the amp IC.

Let me know if you need any further help. If you are able to do any testing of the radio with a multimeter you would be best served to take it to a service center and let a technician look at it and give you an estimate for the repair.

Dave

Posted on Nov 12, 2008

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1 Answer

How do you put in the code for a kenwood kdc-4022 head unit


1:-Select SOURCE Select ALL OFF
2:-Press MENU for 1 second, When "menu" is displayed "security"/"SECURITY" is displayed
3:-Press the [<<] or [>>] for one second. When "ENTER" is displayed "CODE" is displayed
4:-Select the digits to enter by pressing [<<] or [>>] button.
5:-Select the security code numbers by pressing [am] or [fm] button.
Repeat steps 4 & 5 to complete the code.
7:- Confirm the code by pressing [>>] for at least 3 seconds
When "RE-ENTER" is displayed "CODE" is displayed.
Go through steps 4,5,6,&7 again to re-enter the code and "APPROVED" should now be displayed? The security code activates?
Press the re-set button and remove from power source Turn ON go through steps 4,5,6,&7 to enter CODE and "APPROVED"" should be displayed.
Crikey need a beer now, Happy tunes, have a good drive.
Regards, Dave

Mar 20, 2011 | Kenwood KDC-4022 CD Player

1 Answer

Cant get my kdc mp238 out of standby mode. i have entered my 4digit pass code in and it says approved, also tried holding the src button in and pressing the small reset button but after i hit the small...


you should just need to press the source button to change modes.. example, tuner, cd, aux. you don't need to hold it in. pressing it for a few seconds. turns the deck off.

Dec 16, 2010 | Kenwood KDC-MP238 CD Player

1 Answer

I have the code but only says on screen that it is waiting? on my kenwood kdc 6090r


• Security-related information

1. Forced Power ON mode (All models)

Even when the security (Mask key) is approved, resetting

the unit while holding the ATT and Preset 4 keys makes it

possible to turn the power ON for 30 minutes. After 30

minutes have elapsed, it is not possible to return to the

previous condition unless the unit is reset again.

2. Method of registration of the security code after EEPROM

(Tuner Unit ***'y) replacement

(Code security model)

(1) Enter the test mode. (See " 1. How to enter the test

mode")

(2) Press the CLK key to enter the security registration

mode.

(3) Enter the code using the Preset 1/2/3/4 keys.

Example: To enter "3510"

• Press the Preset 1 key 4 times.

• Press the Preset 2 key 6 times.

• Press the Preset 3 key twice.

• Press the Preset 4 key once.

(4) Press and hold the DISP key for 3 seconds until

"APPROVED" is displayed.

(5) Exit from the test mode. (See " 2. How to exit from the

test mode")

(Note) All Clear is not applicable to the security code of

this model.

3. Simplified method of clearing the security code (K Type

only)

(1) While the code entry is requested, press and hold the

VOL UP key for 3 seconds while holding the DISP

key pressed. (This should turn "----" off.)

(2) Enter "KCAR" from the remote. (Same way as the 00

model)

Press the 5 key on the remote twice, then press the

Track Up key. (This enters "K".)

Press the 2 key on the remote 3 times, then press the

Track Up key. (This enters "C".)

Press the 2 key on the remote once, then press the

Track Up key. (This enters "A".)

Press the 7 key on the remote twice, then press the

Track Up key. (This enters "R".)

(3) The security code is cleared and the unit enters the

ALL OFF mode.

(4) If you commit a mistake in the code entry, the unit

enters the code request mode again.

4. Method of writing the Mask key while the EEPROM is in

the initial status

(1) Enter the test mode. (See " 1. How to enter the test

mode")

(2) Press the CLK key to enter the Mask key registration

mode. "TRANSMIT1" should be displayed now. The

display at this time should show " < > " in place of " [ ]

".

(3) Point the Mask key remote toward the light sensor,

and press and hold its key for more than 0.5 second.

(4) When "TRANSMIT2" is displayed, press and hold the

key on the Mask key remote for more than 0.5 second

again. The first and second counter codes are not

compared at this time.

(5) When "APPROVED" is displayed, the write operation

is complete. Now the demonstration mode is initiated

and the test mode is terminated.

(Note) In the same way as previous models, if 30 minutes

have elapsed with no code written, an error occurs

and the power is turned OFF.

5. Method of initializing the Mask key

(How to reset the unit from the Mask key approved condition

to the factory condition)

(1) Enter the test mode. (See " 1. How to enter the test

mode")

(2) "TRANSMIT1" is displayed and the Mask key entry

request mode is initiated.

The display at this time should show " ∗ ∗ " in place of

" [ ] ".

(3) Press and hold the key on the Master key remote for

more than 3 seconds.

(4) When "TRANSMIT2" is displayed, press and hold the

key on the Master key remote for more than 3 seconds

again.

(5) When "APPROVED" is displayed, the Mask key is

cleared, the demonstration mode is initiated, the test

mode is terminated and the unit returns to the factory

condition.

6. Method of clearing all Mask key-related data

(1) Enter the test mode. (See " 1. How to enter the test

mode")

(2) Press the CLK key to enter the Mask key registration

mode. "TRANSMIT1" should be displayed now.

(3) Point the Master key remote toward the light sensor,

and press and hold its key for more than 3 seconds

(until the level display shows the full condition).

(4) When "TRANSMIT2" is displayed, hold the key on the

Mask key remote for more than 3 seconds again.

If "TRANSMIT1" is displayed in place of "TRANSMIT2",

restart the procedure from step (3).

(5) When "APPROVED" is displayed, all security data is

cleared and the unit returns to the condition before
Mask key writing with the EEPROM in the initial status

Apr 05, 2010 | Kenwood KDC-6090R

1 Answer

Car battery was disconnected now CD player doesn't work


Try disconnecting the power again for a minute and try again.

Jan 13, 2010 | Kenwood KDC-W7537U CD Player

1 Answer

Went to prison for 2 yrs. got out .car battery wasw dead,charged it, started my car and my stereo is asking for a code.all my pa`per work is gone,along with most everything else i had.all i have right now...


The unit can be used.
When the Security Code function is activated, the code can't be
changed and the function can't be released.
Note, the Security Code can be set as the 4 digit number of your
choice.
1 Enter Standby
Press the [SRC] button.
Select the "ALL OFF" display.
2 Enter Menu mode
Press the [MENU] button for at least 1 second.
When "MENU" is displayed, "Security"/ "SECURITY" is displayed.
3 Enter Security Code mode
Press the [4] or [¢] button for at least 1 second.
When "ENTER" is displayed, "CODE" is displayed.
4 Select the digits to enter
Press the [4] or [¢] button.
5 Select the Security Code numbers
Press the [FM] or [AM] button.
6 Repeat steps 4 and 5, and complete the Security Code.
7 Confirm the Security Code
Press the [¢] button for at least 3 seconds.
When "RE-ENTER" is displayed, "CODE" is displayed.
8 Do the step 4 through 7 operation, and reenter the Security
Code.
"APPROVED" is displayed.
The Security Code function activates.
When the wrong Code is entered in steps 4 through 6, repeat from
step 4.
Press the Reset button and when it's removed from the
battery power source
1
Turn the power ON.
2 Do the step 4 through 7 operation, and enter the Security Code.
"APPROVED" is displayed.
The unit can be used.

IF ALL ELSE FAILS TRY THE RESET BUTTON...
HERE IS A LINK TO KENWOOD WITH THE OWNERS MANUAL FOR THE MODEL YOU HAVE.


OWNERS MANUAL:
http://www.kenwoodusa.com/UserFiles/File/Global/Consumer/Manuals/KDCX569.pdf

KENWOOD WEBSITE:
http://www.kenwoodusa.com/Support/

GOOD LUCK TO YOU!!

Jun 25, 2009 | Kenwood eXcelon KDC-X469 CD Player

1 Answer

I need the wires connector


ebay is a good place to search.
if that doesnt turn up 1 try any audio visual store or a kenwood approved retailer will be able to order 1 for you

May 20, 2009 | Kenwood Excelon KDC-X789 CD Player

1 Answer

I have the code put it in still not working dont no how to put it in


NOTE: IF YOU TRIED UNSUCCESSFULLY TO ENTER YOUR CODE YOU MAY BE PROHIBITED FROM ANOTHER ATTEMPT FOR UP TO 24 HOURS. See below--section C

A. Input Security Code:
  1. Enter Standby: Press the [SRC] button. Select the "ALL OFF" display.
  2. Enter Menu Mode: Press the [MENU] button for at least 1 second. When "MENU" is displayed, "Security"/"SECURITY" is displayed.
  3. Enter Security Code mode: Press the [|<<] or [>>|] button for at least 1 second. When "ENTER" is displayed, "CODE" is displayed.
  4. Select the digits to enter: Press Press the [|<<] or [>>|] button.
  5. Select the Security Code numbers: Press the [FM] or [AM] button.
  6. Repeat steps 4 and 5, and complete the Security Code.
  7. Confirm the Security Code: Press [>>|] button for at least 3 seconds. When "RE-ENTER" is displayed, "CODE" is displayed.
  8. Do the step 4 through 7 step operation, and reenter the security code. "Approved is displayed and the Security Function activates. However, if you enter a code different from your security code you have to start over from Step 4.
B. After Pressing the Reset button or when removed from power source.
  1. Turn the power ON.
  2. Do the step 4 through 7 operation, and reenter the security code. "APPROVED" is displayed.
C. If an incorrect code is input, "WAITING" is displayed and the input prohibited time shown below is generated. After the input prohibited times lapses, "CODE" is displayed, and input can be done.

1 Time = 0 minutes
2 Times = 5 minutes
3 Times = 1 hour
4 Times = 24 hours

Here's a link to the manual:
http://manuals.kenwood.novenaweb.info/languages/EN/support/manuals/KDC-MV6521~6021~5021%20(EN).pdf

Apr 23, 2009 | Kenwood KDC-5021 CD Player

2 Answers

Due to remove the car battery from my car the stereo akking me for code (password) I know what is it, but where is the enter key on the detacheble face


1 Enter Standby
Press the [SRC] button.
Select the "STANDBY" display.
2 Enter Menu mode
Press the [MENU] button for at least 1 second.
When "MENU" is displayed, "SECURITY" is
displayed.
3 Enter Security Code mode
Press the Control knob for at least 1 second.
When "ENTER" is displayed, "CODE" is displayed.
4 Select the digits to enter
Push the Control knob to [
4] or [¢].
5 Select the Security Code numbers
Push the Control knob to [FM] or [AM].
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
displayed.
8 Do the step 4 through 7 operation, and
reenter the Security Code.
"APPROVED" is displayed.
The Security Code function activat

Good Luck

Jan 12, 2009 | Kenwood KDC-MP528 CD Player

1 Answer

Kenwood Deck KDC-MP3032


Hey mate

We always used to use the remote to enter the code and the unit would reset. Without the remote, dont think it works, sorry man. Go to a Kenwood installer and they will probably be able to help you will you wait. I would, if you are in Greenbank QLD Australia. :

robotek

Aug 09, 2008 | Kenwood KDC-MP2032 CD Player

1 Answer

Kenwood car audio KDC-4019


1. Forced Power ON mode (All models)
Even when the security (Mask key) is approved,
resetting the unit while holding the ATT and Preset 4
keys makes it possible to turn the power ON for 30
minutes.
After 30 minutes have elapsed, it is not possible to
return to the previous condition unless the unit is reset
again.


This is the only real way of clearing it but you need a remote
3. Simplified method of clearing the security code
(K Type only)
1. While the code entry is requested, press and hold the
VOL UP key for 3 seconds while holding the DISP key
pressed. (This should turn "----" off.)
2. Enter "KCAR" from the remote. (Same way as the 01
model)
• Press the 5 key on the remote twice, then press the
Track Up key. (This enters "K".)
• Press the 2 key on the remote 3 times, then press
the Track Up key. (This enters "C".)
• Press the 2 key on the remote once, then press the
Track Up key. (This enters "A".)
• Press the 7 key on the remote twice, then press the
Track Up key. (This enters "R".)
3. The security code is cleared and the unit enters the
ALL OFF mode.
4. If you commit a mistake in the code entry, the unit
enters the code request mode again.

Jul 10, 2008 | Kenwood KDC-X590 CD Player

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