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Kenwood kdc-x396 unit works fine but no display.

Kenwood kdc-x396 unit works fine but no display. Read about soddering resistors on the board. Will this work with this model and where do I sodder?

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6 Suggested Answers

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Posted on Jan 02, 2017

  • 125 Answers

SOURCE: Kenwood KDC-MP528

It is all described in the manual, page 27 Here is the instruction manual: http://inform2.kenwoodusa.com/manuals/KDCX589.pdf If you have problems downloading, send me an email where i can send the file.

Posted on May 25, 2007

  • 1 Answer

SOURCE: KDC-MP532U display blank

Solution from Tech48:

The problem is not the faceplate for any of you, it is inside the main unit. If you know how to solder, you can fix is very easy. First take the top off the unit, there is 1 screw in the back middle. Then take the CD player out. It has 2 screws holding it in at the front corners at the bottom of the CD deck. Use a number 2 phillips and take out the gold screws holding the CD deck in place. Then you can pull out the CD deck, and be careful not to damage the ribbon cable connected from the CD deck to the main board. The deck can just sit up and over to the left to get it out of the way for what needs to be soldered.
Look inside the main unit on the board and you will see in the front right corner a series of surface mount resistors all connected in series. Just reflow that solder on them with a small amount of new solder added and the display will once again work perfectly. That solder is very heat stressed, that is the problem. I have fixed dozens of these over the last few years. Make sure you put it back together the same as it came apart, and you are done.

Posted on Jan 22, 2009

tech48
  • 624 Answers

SOURCE: Kenwood KDC-X590 Faceplate display problem

Yes, the problem is inside the main unit. I have fixed hundreds of these radios over the years. 
The solder on these resistors get heat stressed and stop conducting properly. They just need a tiny little touch of solder. 
With the radio in front of you and the face is facing you, take the top off and remove the CD mech. The CD mech can just be set over to the left a little and the ribbon cable to it can stay connected. Just move it out of the way gently. You will see a series of resistors in the right front corner area of the main board on top. They have 2R7 printed on them and there are quiite a few, all in that main area. Just resolder them and put it all back together again and the display will work normal.
Dave

Posted on Jan 22, 2009

  • 773 Answers

SOURCE: I have a Kenwood KDC 135 car stereo wont un mute.

behind the face plate there is a little recessed reset button. push it using the tip of a pen or similar. that will fully reset the radio to like it was when you bought it.

Some times head units hicup. this is how you reset it. In most error cases this solves the problem.

Posted on Dec 15, 2009

  • 35 Answers

SOURCE: I have a kenwood KDC-MP438U stereo. Ipod error.

Hi If anything the stereo was probably designed and tested using a certain version of the Iphones software, now that version 4 has been released the way the IPhone communicates may have changed.

As a result the stereo is no longer able to talk to the phone and vice versa. your probably best off contacting Kenwood direct to see if they are aware of this problem and if there is anything that can be done about it.

Posted on Jul 28, 2010

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Yes, the problem is inside the main unit. I have fixed hundreds of these radios over the years. 
The solder on these resistors get heat stressed and stop conducting properly. They just need a tiny little touch of solder. 
With the radio in front of you and the face is facing you, take the top off and remove the CD mech. The CD mech can just be set over to the left a little and the ribbon cable to it can stay connected. Just move it out of the way gently. You will see a series of resistors in the right front corner area of the main board on top. They have 2R7 printed on them and there are quiite a few, all in that main area. Just resolder them and put it all back together again and the display will work normal.
Dave

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I am not sure exactly what solution you are reffering to, but the KDC-MP532U has a problem with the display going out that is the result of heat stressed solder on the main board. The surface mount resistors that are located on the right side near the front of the unit, as you look into it with the display facing you, are the culprits. This is common in about 3 or 4 Kenwood models. These surface mount resistors are on the top of the board, so the board doesn't need to be taken out to fix it. Just the CD mech does. The surface mount resistors just need the solder reflowed, an easy enough job if you know how to solder. They are all lined up connected to each other, I don't remember the reference numbers, but if you can recognize what a surface mount resistor looks like, you should be able to find them very easy.

Thanks for the compliment on the other post, it is appreciated. A good rating would also be appreciated.

Thanks and good luck,

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