Question about Kenwood KDC-MP532U

5 Answers

KDC-MP532U display blank

Hi,
I have been reading all the posts about the kenwood dash radios heating up a set of resistors causing the display to quit iluminating. I was hoping to get calrification on the exact model. I have a KDC-MP532U with a blank display.

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  • schultzey11 Nov 22, 2008

    Same problem. My Kenwook KDC-MP532U has no display. I have taken it apart but am unsure of which components to reflow with solder.

  • Anonymous Nov 29, 2008

    I have the same problem and a friend has one model up and it is the same way.18months old



  • Mudnut Dec 19, 2008

    I have the same problem. It works once in a while. One time was when I was drying a shirt via my Dash vents. When I pulled the shirt away , it was working. So heat made it work apparently, that one time.



  • sirluke99 Jan 05, 2009

    well I am glad to hear it was not just mine. thought maybe a setting was changed and did not find a button to turn it on. I went out yesterday and bought a Pioneer head unit but had not opened it yet with hopes of making this one work. Wanted to get another Kenwood because the wiring harness is already set for Kenwood, but if this happens again I would not be happy. Found the new Pioneer DEP-4001Hd with HD tuner for a good price. One of the problems with that Kenwood with the IPOD connector is it will not charge the new 3G Iphone, a change that Apple made that only lets it play. also want a HD tuner for the Kenwood but was hard to find and espensive. so for $200 bucks I got a unit with a IPOD USB, front AUX and HD Tuner.
    But if anyone finds a quick fix for this Kenwood let me know and I can use it in my other car or sell it.

    Thanks

  • bernathl Feb 28, 2009

    No display every other things are working.
    I just want to thank all of you techs your great help!
    I just done fixing my kdc mp532u kenwood indash radio.
    I followed the instructions of a technician .
    Solder the lower right corner of surface resistors,when you facing the player from the front!They are in series just like tech. 48 explained!
    You got to have steady hands!Push them down with a small tweezers at the same time you melt the solder!I toke the whole thing out ,but you don't have to, the board can stay in the bottom of the frame!
    Good luck!I did it, and so can YOU!


  • okcolts Mar 05, 2009

    Display out. Same deal. Contacted Kenwood today to complain. I will let everyone know how they reply. This may be my last Kenwood product.

  • John Feb 16, 2012

    Yep. Just did it today. Works great. Took about 30 minutes to take out the deck , solder the resistors and put it back in. Good as new. Awesome.

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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

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  • weaverronnie Sep 15, 2010

    thank you.... boat116. display is up and running. i know this was a old post but it helped me out today
    9/14/10.

  • Steve Brown
    Steve Brown Nov 04, 2011

    Thanks boat116. In and out, quick and simple. Up and running, good to go.

  • b1r2a3n4don
    b1r2a3n4don Jul 10, 2013

    i need help do we solder on the bottom of the board where the resistor or on the top at the end where the gold line is

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Do you happen to have the resistor numbers? I'm guessing that they are #'s 2R7 and there is 5 of them and they are located right by the right hand side gold post? This would help me out a ton.

Thanks

Shane

Posted on Nov 21, 2009

  • Spoolin69 Nov 21, 2009

    I just went ahead and started soldering the 5 resistors numbered 2R7. They are on the right hand side next to the gold post. There are 5 of them in total. I re-soldered the ends of them as boat 116 had said to do. I plugged it in and it worked like a champ.

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After months of using cleaners and asking techs at shops around the city, and then online, in order to try and fix my display; then I found this site. I figured it couldn't be this easy as boat116 says it is but tried it anyway as I was going to buy a new deck.
My soldering skills are horrible and I ended up with nasty gobs everywhere. But it works perfect now, and I'm amazed. Thanks to all on here.

Posted on Aug 15, 2010

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Thank you! Thank you! Thank You!

Posted on Feb 28, 2009

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Old post I know but...I just soldered the 5 resistors and it works good as new. Took about 30 minutes from start to finish on taking out the deck, fixing it and putting it back in.

Posted on Feb 16, 2012

3 Suggested Answers

tech48
  • 624 Answers

SOURCE: Display on Kenwood Out

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,

Dave

Posted on Jun 30, 2008

smarthome2
  • 1114 Answers

SOURCE: I have a kenwood radio model kdc-135 and can not set clock or sh

http://www.kenwoodusa.com/UserFiles/File/Global/Consumer/Manuals/KDC-135.pdf Here's the manual link from Kenwood and it's on page 13. Hope this helps

Posted on Nov 18, 2009

  • 1 Answer

SOURCE: Problem with Demo mode turning off Kenwood KDC-WF431

Hello. Have the same problem. Have just downloaded the Manual in German. It says In Standby Mode use the small joystick up to FM or AM till it says DEMO OFF and then press the small joystick for 2 Seconds. Hope this helps.

Paul

Posted on Aug 18, 2010

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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,

Dave

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I read up on this and saw Tech48's post related to a different model. He's the one who deserves the credit. I'm just the rookie who has the soldering iron. However, here's a picture of the 5 resistors that you need to reflow and "top up"

My model is the KDC-MP532U (same as the 532, but with the USB option).

Here's the overall view. The CD-Player is standing on its edge at the bottom. The resistors are on the bottom right by the brass screw post.

81d7a18.jpg

...and here's a close up of the board and the resistors....

f84a560.jpg

Hope it helps. Thanks Tech48!!!! It's like I've got a new stereo!!

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