Question about Kenwood DPX-4030 CD / Cassette Player

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No display on my kenwood kdc-mp532u

On my 532u everything works but there is no disply can you help me how to fix the problem please

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  • smilee2j May 01, 2008

    I have the same model and my display went out. it was on May 1st. system is only about 18 months old.

    smilee2j

  • Anonymous May 17, 2008

    What is the fix? I also got a kdc-mp632u - logan v

  • dcruse May 27, 2008

    Same issue, Kenwood KDC-mp632u lcd screen will not light up. Worked for about 12 months , then started flaking out. Appeard to me a cold tempiture issue at first , but will not power on at all now.

  • RMRetherford May 28, 2008

    I have the same problem. I have taken the faceplate apart. The LCD is in sealed glass after carefully prying apart I found a little circular ring and what looks to me some type of ceramic inside of it. I don't see how it could be a fuse because it is a complete circle and the metal goes completely around. I am stumped and bummed cause it really makes it hard to find a station, use the satellite radio, or change my bass level, and the damn things are so expensive.

  • Anonymous Jul 30, 2008

    I have the KDC-MP532U and the display just went blank while driving home yesterday. Everything else works fine, but it was a fun game trying to make adjustments. I thought it may be a heat issue since it was 90 degrees yesterday. I rarely take the faceplate off. I took it off and let it cool down inside fro an hour and then reattached. The display came on for a minute or so and went out. I cleaned connections and reattached - blank display. Called Best Buy and they advised probably more to repair than worth - just buy a new head unit. Attached faceplate this morning and display worked all the way to work. Looks like the beginning of a problem. I will try taking faceplate inside during hot and cold days(if it lasts to another cold day). Then I will try taking apart and looking for burnt parts on the board.

  • Anonymous Sep 06, 2008

    i hAVE THE SAME PROBLEM

  • Anonymous Oct 28, 2008

    Same problem on 632u

  • 92eg6 Nov 04, 2008

    I have the same issue. Took out the faceplate and found a blown fuse inside the led display. Don't know what to do from there to repair it. Anyone can help me out?

  • Bill Zuber Jan 03, 2009

    Mine is on a 632 U model that has been installed for about 3 years and just went out today.

  • dodgerjimmy Jan 20, 2009

    i need a face plate for a Kenwood KDC-MP532u any one got one ill but it off them email dodgerjimmy@netzero.net

  • Anonymous Feb 11, 2009

    display out

  • lcastro Apr 15, 2009

    Wow! I have the same problem. Man, I hope this works.

  • solitariopr May 07, 2009

    the same happens to me ,It worked good for 15 months it cant be heat problem I live in puerto rico and it is hot almost every day factory problem I guess.


  • gary964 May 11, 2010

    My Mod# DPX-MP4030 doesn't have a removeable face. The screen can not be read but I am getting the color change on the screen.

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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.

no display on my kenwood kdc-mp532u - 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!!

Posted on Jul 08, 2009

  • Rog10 Feb 27, 2011

    Worked like a charm ! 1st I resoldered the underside with no results. I then soldered a drop on each side of the resistors on top side

  • Max Sanders Sep 21, 2012

    Holy cow, it really did work! Got this receiver with a used car I just bought. Display was kaput. Re-soldered as shown and voila! It works!

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Alright! The resistors on the KDC-MP532U are on the right side of the board and they are big. One was actually loose when I reflowed the one side, figured that was the bad joint opposite. Long story short, re-soldered the resistors and sure enough the display works again. Thanks so much for figuring this out. It was driving me nuts!

Posted on Jun 30, 2008

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Hey,
I've got this same model receiver and had the same problem. The faceplate would light up and everything worked, but there was nothing on the display. I read this similar post http://www.fixya.com/support/t274951-display_out_but_everything and tried the solution. I put a little solder on each side of the five black and white resistors at the front(where faceplate attaches) right of the receiver. Everything works great now. Just thought I would share.

Posted on Jun 26, 2008

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Great article, i came across 1 of these decks and saved it from being recycled, was very easy to disassemble and sure enough 1 of the resistors actually fell off as i was cleaning the contacts before soldering. After getting resistor as close as i could (damn thing is tiny) i resoldered and reassembled. Unit works perfectly! Thanks Again!

Posted on Aug 27, 2010

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Ok.. :o) O meu tbm funcionou!! Deu Certo!!! Obrigado!!

Paulo-
São Paulo - Brazil..

Posted on Sep 19, 2009

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I also have a KDC-mp632u with the same problem, sounds like a manufacture defect. pos.

Posted on Jun 10, 2008

  • terrijoeysam
    terrijoeysam Feb 23, 2013

    i know this is a very old post, but for the 632u i have, all the r27 resistors ran in a chain up the right side of the board. i resoldered every one of them and bam! a working display :

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I just fixed two mp532u decks in under an hour with these instructions. Thanks!

So, I got to thinking, who on earth designed this portion of the circuit? There are 10 solder joints on 5 surface mount resistors, all in series, for a total of 13.5 ohms (mine measured at 13.8 and 13.6). More places for mechanical failure than necessary.

It might be better to bypass the SM resistors and solder an axial lead resistor of similar value through the PCB holes that are ALREADY THERE on the circuit board (visible in the pic above)!

This should give you more mechanical stability in only having 2 solder joints, but would require removing the circuit board to dress the resistor leads.

Just a thought anyhow. Maybe I'm missing something :)

Posted on Dec 12, 2009

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Had the same problem...Followed the lead of dubCanuck1 above and solved it easily...Had more trouble getting the darn thing out of my Volvo S80 than tearing down the radio and fixing it...

One little lead of solder at the edge of each of those 5 resistors and the display works like new again...

Thanks!!

Posted on Aug 29, 2009

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I have not opened the display yet, but this sounds like the same problem that the nissian 240 had with the heads up display. Im guessing threre is a capicitor in the unit that will need to be solderd out and a replacemtn put in . Ill update once I get it opened. Im guessing Radio shack will have the capicitor online.

D

Posted on May 27, 2008

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After talking to several people and taking the stereo apart. I found it looks like a blown fuse in the faceplate. On the LCD screen on the lower left I can see a burn portion. I think this is creating a short in the power for the display.
This would make sense since every once in a while the display works for a day or two.
If you have found a solution let me know.
michael.lq.jones@gmail.com

Posted on May 19, 2008

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