Question about Kenwood KDC-MP632U

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Display out on kenwood mp632u faceplate but everything else works

Bought used faceplate that didn't help... read something about soldering something? to fix the problem. I can follow a wiring schematic, but a circuit board is new to me

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Seems as though some resistors on the board have a problem with heat and the solder joints fail. So long story short... three screws, a soldering iron and about 15 mins each
I love Kenwood but would recommend this one to anybody. Don't bother buying another one because the same thing will happen. I GUARANTEE IT!
display out on kenwood mp632u faceplate but everyt - 6d7abf9.jpg

Posted on Jan 22, 2009

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The solder joints in a stero are very difficult to work with do to their small size, i would check with the factory to see if it is still under warranty and if not , what they would charge for repair.

IM not sure if any 3rd party would have a wiring schematic for a head unit like that probably only kenwood could provide you with that.

Posted on Jan 22, 2009

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You can get service manual from the link below

Click this link

Posted on Jan 22, 2009

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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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    blueextc3221 Jan 22, 2009

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