Disconnect all the speaker wires and power up back the unit and then press reset button at top left corner for ten second..
SOURCE: display read protected and wont do anything
Usually, protect mode is enabled when the speaker output wiring has shorted together or is touching ground/+12V. I would verify that none of the speaker wiring has come loose.
SOURCE: Kenwood car CD player not working
This means that some one has entered the wrong security code more than 3 times. time to take it to a dealer
SOURCE: protect mode
Press reset button (small circular button need something with a point) to the left of the 1 channel
SOURCE: Kenwood KDC-MP235 in Protect mode. Cant get it off
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 which is printed in the manual of many Kenwood models.
1234 - This is a security code commonly chosen by Kenwood owners.
Entering Your Kenwood Security Code
If the car battery fails or is disconnected, the Kenwood will ask for the security code.
The
procedure to enter your 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 holding the DISP key depressed, press and
hold the Volume UP or DOWN key for 3 seconds until the "..." display
disappears.
Enter the security code using your 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 using your 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 using your Kenwood remote.
Entering Letters on your Kenwood Remote
To
enter a letter using your Kenwood remote, press a button once for the
first letter, twice for the second letter, and three times for the
third letter -- then press the Track Up or Next Track key to send the
letter.
To send the letter 'A', press the 2 key once and then
press the Track Up key. To send the letter 'B', press the 2 key twice
and then press the Track up key.
Finally, when you are done entering all of the letters, 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
Your 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 thie bug, the security code is stored
incorrectly. The workaround is to enter the wrong security code.
In
models with this bug, you have to decrement the third character of the
security code by one. If your security code was 1111, you would enter
your security code as 1101. If your security code was 9999, you would
enter 9989.
SOURCE: kenwood car stereo cd player reads protect mode how do i fix this
i have a kenwood kdc-241 car stereo and it has gone onto protect mode i have done everything it says in the manual and even taken it out of the car just in case it was damp i have tried putting it back in but still is in protect mode can anyone help me please
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