Question about Kenwood KDC-MP632U

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Face plate will not light up

The face plate on my Kenwoowood KDC-MP632U will not light up. I even bought a new one and it still did not work. Can you tell me what the problem is









































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  • minnie3690 Dec 29, 2008

    I have the exact same problem, system still works, but I can't put it on aux to play my ipod. I almost bought a new faceplate, but I'm glad I say your post before I wasted my money.

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My problem as i think was same..
..problem actually not plate...it something inside...
repair guy just fixed something inside...as i understand some condinsators heats and after some pereod of time its broked by himself..so he first was thinking that it was plate but after it he foung the problem in this condensators....actually problem in tape and not in plate...

Posted on Nov 27, 2009

  • Ferdie Sep 20, 2010

    If the display doesn't work then the resistors on the board inside the stereo needs to be resoldered. Unscrew and remove the top cover and the CD slot. There are 10 of them located on the lower right side of the board. Good luck.

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My faceplate does not show display on my Kenwood kdc-mp632u. The lights work and the head unit in general plays the radio and cd's ect. now I have read somewhere that there are resistors inside so that...


I had the same problem and I resoldered the resistors on the board inside the stereo and it worked. Unscrew and remove the top cover and the CD slot. There are 10 of them located on the lower right side of the board. Good luck.

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Sep 16, 2009 | Car Audio & Video

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I have a kdc mp632u and i cant get any sound out of my subwoofers. The amp comes on and there is power to the amp but still no sound. can someone tell step by step what i have to do to get it to work with...


Hello,

First, make sure that the RCA's from the HU to your amp are properly connected, and fully seated on both ends. There are 2 sets of outputs. You should be using the ones on the left as you face the rear of the HU. Here is a link to the manual. Page 40 shows the connections on the back:

http://inform3.kenwoodusa.com/manuals/KDCX590.pdf

After making sure that everything is connected OK, check to see if you have the subwoofer output turned on your MP632U.

To do this, push the control knob on the right toward AM (toward the bottom). Subwoofer output switches off/on each time you push it. When it is on, the display reads "SW ON".

If this does not solve the problem, you most likely have a defect in either the HU or the amp.

Hope this helps! If it does, please rate as "FixYa." Thanks!


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1 Answer

Power to stereo none to unit


There is a ribbon cable that goes from the display to the main board of the radio that may be bad, if you have everything connected properly and all you get is the red led, this is a possibility. No way for anybody to know if you have it wired wrong if they can not look at it themself.

The red wire is for power when the key is on, the yellow wire should get power all the time, the black wire is ground.

If you have those correct, the radio should at least turn on. If you have these right, you may need a new ribbon cable. The connector that interfaces with the detachable face must also be taken off the old ribbon cable and put on the new one, or get a new connector and just replace it. The ribbon cable does not come with that connector. It is soldered on the ribbon cable, so if you are not very good with a soldering iron, you should have a service center do it for you.

Let me know if you want the part number for the ribbon cable and/or connector, I can get those for you.

I can not guarantee that the ribbon cable is the problem, or that it is the only problem, but it is the most likely problem with that model number of Kenwood. I have repaired many of them, so I have a good idea what causes most of the problems, but I have seen times when the usual suspect is not the problem and something else like the LCD in the face is bad, or the IC that controls the display is bad. Even a voltage regulator on the main board of the radio can be at fault as well. There are probably about 10 different things that can cause that one problem, having an experienced technician is always the best way to determan the problem with certainty.

Let me know if I can be any more help for you.

Dave

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Are a face detachable or the conector to the main board are a flat connector,because if are connected with a flat connector thats the problem

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Make sure your aux is turned on, and that should be the "source" that you use when playing your ipod.

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