My display on the faceplate has stopped working, is there a battery in this unit or some type of recall or fix for this ?
Help!
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.
How did you manage to remove the cover for your KDC-MP532U to get to the circuit board? From the outside, it looks sealed up with only a few screws. Thanks
Thanks a mil!
This solution works, don't let the burned mark on the lower left of the face fool you this solution worked on my kdc mp632u. just as I was about to abandoned this receiver. Popped it open and found the about 5-7 surface mount resistors. I simply re-soldered, using a fine tip on my solder station, and a little soldering flux to help flow the solder. first remove the top 1 screw and some snap clips and the lid comes off. next remove the 2 screws on the cd drive and lift up and remove the ribbon cable by releasing the little brown plastic clip toward the ribbin cable and it simply slips out. now you can accese the main board with the resistors are on the right side.
Thanks for the info, which side do I have to solder, do I take the board out and solder the underside or do I solder at the resistors?
Just to clarify the resistors are very small rectangle black pieces on the far right side of the board. Adding solder to the third unit fixed my faceplate. Thanks for posting this tech 48 !!!!!!!
Hello, Can this problem be solved in the same or similar way on Kenwood Kdc-M9021 ? The unit does the same thing ... all working great but nothing on the display. I came across your post and now i'm hopeing you can help me with some advice. I'm good with soldering but the only thing is that in my unit there are no R43, R44, R46, R47, R49, R50, R51, R55 AND R57 or resistors with 2R7 on them. Thaks allot.
once i saw the r27 on the resistors, i knew exactly where to solder. first i heated the existing solder and let it cool till it flashed to solid, then added solder to all the resistors so i made sure i wouldn't have to take it all apart again. my hubby put it back in the truck and turned ignition key - and there was the working display YAHOO!
Hi,my kenwood kdc-u546bt have same problem everthing working fine except the display,i don't have any idea where i have to resolder ,anyone can send pictures about this pls ?
Same
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I did the repair posted by Tech48. Open up the radio, take the cd player portion out, and resolder all of the resistors in the right front portion of the radio ( when looking from the face side) There are a row of around 10 or so of them, with the letters 2R7 on them. Place the solder gun on the joint and it will begin to melt the joint, then flow a tad of new solder onto each joint.
My face is now working after the repair. Thanks again!!
Hi,my kenwood kdc-u546bt have same problem everthing working fine except the display,i don't have any idea where i have to resolder ,anyone can send pictures about this pls ?
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I have the KDC-632U and experienced the "black screen of death" error on my deck. It would occassionally come on and eventually failed altogether. I opened the faceplate and did notice the mark on the LCD...but it's not a factor. I opened the head unit (Thank you Tech48) and found the resistors on the right side. When magnified, you could actually see where the cracks had formed on the solder and there was a break in the circuit. I resoldered these resistors (and some others, for good measure), put it back together, and it works like a charm. THANKS for all the help folks. It's a quick fix, and a great save!
I have the same problem with my faceplate... but the problem isn't actually with the faceplate. I have friend who bought an X590 head unit a month after me, his still works properly. So I swapped our faceplates, and what do you know, my faceplate works fine with his head unit. So the problem is within the head unit itself.
I am going to attempt fixing my X590 soon, but I want to know if anyone
actually took any pictures, or if anyone is kind enough to take theirs
apart to take a few pictures of exactly what and where needs to be
soldered? I have never done this before, but I think I am handy enough
to pull this off. Thank You.
Wow....Thanks alot for the help Tech48. I want to make a donation! I am back in business :)
Would the KDC-MP532U head unit suffer from the same bad solder joints? I have two of these and my wife's just followed mine with a non existant display. I am so glad I saw this post.
Guys, I just wanted to say thanks to Tech48's solution and because of his technical expertise my KDC X590's display is back up and running like it should be. Even though the problem seems as if it would originate from the faceplate itself it isn't. I too took apart my faceplate and looked at it and found the "burnt black spot" that everyone talks about. Again though this isn't the problem. Download the service manual for the X590 and follow Tech48's guide on which resistors to solder here: http://www.fixya.com/support/t689830-kdc_x590 and you are good to go. Thanks Tech48!
The ones that are burnt need a new faceplate assy, for the ones who work sometimes and dont its usually a loose solder connection osmewhere on the board, not the faceplate board but the main board of the unit, im currently working on one now if i find it ill post the curcut # for every1
I have exact same problem with all LED's on my KDC-X590 faceplate do not illuminate anymore but all functionality is OK (all the buttons and functions work). It started as intermitent problem but lately haven't seen the display for months.
I checked with the local distributor in PA, where I bought the unit, and he said because the Excelon brand is top of the line it has a two year warranty. I have until April '08 to take it in and have them send it for repair. They have a repair center on east coast (Georgia, I think he said) and it usually takes 5 - 10 days to get it back. Unfortunately I have to send the entire unit back, not just the faceplate.
As follow up to my previous comment, here's link to Kenwood USA. (http://www.kenwoodusa.com/) One of the tabs sends you to authorized distributors in your area. If you take it there they should send it out for service.
This seems to be a repeating problem with this Kenwood model. I was able to return the entire unit to the distributor where I bought it to get it repaired. This model is the high end and has 2-year warranty so if yours is < 2 YO, send it back through the Kenwood distributor/authorized repair center. Got it back in about 5 days even though they said 1 - 2 weeks is typical. Did not cost anything except didn't have a radio for a week. Everything is fine now. Hope it stays repaired for long time. BTW - the repair document didn't mention details about what they fixed.
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I fix it too....
My Kenwood model is DPX-501U (2din)
I resolder the 2R7 resistors at the mainboard and the display works fine again.
Thanks.
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I hv a same prob with dpx-4020
but i could not find the resistor..
anyone can help
Brilliant! Thanks everyone for sharing. Same problem here, so this site was perfect! I will post my results after breaking out the solder gun.
Thanks a 1.000.000 tech48! My display cut out whilst on holiday in sunny Italy. Radio controlled blindfolded, with random results.
Soldering the 5 SMT resistors in place did the trick. This is what I love about the internet. Real life issues and ways to resolve them.
Tech48!!!! wOw! I was ready to give up... You ROCK! Instructions were PERFECT! If you ever get to Canyon Lake, Texas, I owe you some beer, scotch, whatever you like. Look me up... www.dgdigitalimaging.com
Just to let you know the burnt out looking portion in the face plate is supposed to be there. It is not actually burnt out. If you follow "tech48" solution you will find that it will fix the problem. I have been driving around for about 5 months not being able to see what station I am on, or what song is playing. Thanks to "tech48" solution I can see in the dark again. : )
Just fixed my KDC-MP532U following tech48 instructions. Works great just be cautious not to overheat the surface mount resistors or they will come off completely.
Thanks Tech48! $5.00 for gas, $11.37 for a soldering gun and solder.. seeing my display again...PRICELESS!!! THANKS!!! It worked!!!
Tech48's solution is exactly right -- worked perfectly on my mp632u. Once I got the unit open, found the resistors, and didn't see any that were visibly loose, I thought 'there's no way that simply putting a bit of solder on all these ends is going to make any difference', but sure enough -- it did.
one more thing -- if you can't find the resistors (or don't know what a surface mount resistor looks like, as i didn't), there is a diagram here: http://claims.satisfusion.com/ServiceLit/Kenwood/BulletinsAndManuals/KDC-MP632U.PDF
Hi well i just got a 2000 dodge dakota and it hade the kenwood deck in it and the face plate did not work !!! i open the face to see if there was somthing wrong and only saw that there was that burn on it but i open up the hole deck and still could not find the problem !!!! so i put it all back together conetet back in the truck but since i dint realy car about the deck i started hiting the top of it whit a wrich like 3-4 time and it came back on !!!! just hit hard but not to hard and it should come back on!!! am just happy that i dont have to get a new one
I took my faceplate apart and noticed there is a little burned spot on the bottom left hand side of the digital display. My assumption is that some sort of transistor burned out. I don't see how that part could be replaced unless you replace the entire digital display unit. Kenwood should have known better and created a display that would not fizzle out. I love this deck and hate to replace it. I won't buy a Kenwood because their new decks seem to have the same type of digital display.
I just took my faceplate apart... what do you know... a burned out portion on the lower left hand side of the faceplate.
Poor engineering.
SOURCE: display is OUT but everything functions....... what to do?
SYMPTOM: No Display.
COUNTERMEASURE: Re-solder the following components on PCB X34-415:
R43, R44, R46, R47, R48, R49, R50, R51, R55, and R57.
Ok so if you remove the top of the unit and cd player down the right side you see a line of surface resistors that say 2R7 on them, they all need to be resolders to the bord theres 9 total.
SOURCE: display is OUT but everything functions....... what to do?
I just followed tech48's solution by resoldering the resistors on the main board.
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same problem. I looked into the display and it appears ok. I don't believe it's burnt out. I think I hit the wrong button(s)?
same problem for me, display went intermitant for several weeks now I think it's out for good. Anything digital on the display does not show but eveything, all buttons and functions, work fine. It's a real pain. I am probably way past warranty even though the problem showed itself within warranty period.
Same problem for me. Display went in and out for awhile and now it doesn't work at all. The knobs light up, but nothing else does.
I'm having the exact same issue. The buttons work and everything lights up EXCEPT the LCD display in the middle.
It really bums me out because I'm near sure, as are you guys, that it is the faceplate but I need to take the whole thing out of my car to bring it to a service center.
I've had this less than a year and I'm kinda worried that even if I do get this fixed the problem will just crop up again and at that point the warranty will be expired.
same thing. Called Kenwood...No joy.
This has happened to me as well - buttons light and it still plays, but the actual display is nice and blank. It came back on for a fraction of a second after the first time it happened and haven't seen it since. I haven't had a chance to take apart my faceplate, but I'll give it a shot when I have some time.
Same problem as everyone else. I'm heading back to the dealer tomorrow.
Same thing. It acts like an old friend that comes back to visit for a day. I bought it last 2 years ago. After 6 month, it started working on and off. then nothing for 5 months. Then suddenly last december it worked once. 2 days ago it worked for a whole day then left again. All the other functions work.
why is someone saying there is 2 year warranty on kdc-x590, and also Crutchfield admin says also. I have the warranty card in front of me and clearly says 1 year. my x590 screen also went out, about 18 months after purchase, purchased via Car Toys but I have moved now, any idea how I can get this 2 year warranty?
Same problem. took unit apart, looks fine. Took faceplate apart...same burn in the lower left corner as everyone else. As far as buying a replacement goes, I wonder if they will want my left arm or my first born child. The word "recall" comes to mind, but that's for companies that CARE!
dose any one have a pic of what to fix it and ahve pic they can email .me of the spot to fix
Got the same problem on my KDC-MP632U.
Same thing as everyone else...no display. Solution offered up was EXACTLY what I was looking for! I'll fix myself and save the headache! Good luck fellow Kenwood display victims!
Hoo Haw! Thanx Tech48!
Your fix is "Spot-on". Mines a MP532U and I had my main unit apart and had "Scoped" the board for a bad solder joint and couldn't find one. Without a schematic it was tough to pinpoint the culprit. Flowed the resistors per Tech48s advice and I'm back in business! Oh by the way and I'm sure Tech48 knows this, that "burned spot" everyone is talking about is reminiscent of tops of vacuum tubes! The florescent display is a "tube" and requires a vacuum to operate. After the tube is manufactured, a high current charge is sent to 2 leads connected to a metal shunt which evaporates under load and creates the vacuum necessary for operation. It's great to be old....I think...
Thanx Again Tech48.
Would someone please send me a diagram of the resisitors to be soldered? My display is out exactly as described on the original post. I now have my device open, ready to go and just need to know what I am looking for and what to solder. Thank you, in advance. [email protected]
Please disregard my previous post.
I figured it out and VOILA it worked! My display is working again!!!
THANK YOU SO MUCH!! Jpc
I have the EXACT same problem! Soon after I bought my kenwood (less than a year) the faceplate burned out but the unit still works. What can I do?
my display is the only thing that doesn't work on my unit how do i get it working again???
Could this cause my dashlights to not work? I fixed my deck with these great instructions a month ago and my dashlights worked when we turned it on for the first time in months! Now they both are out again. Any ideas?
Display out
I am from singapore and i tried Tech48 method on my KEnwood HU and viola, the display came back to life..
thanks.
same problem here - everything works, except for the display
Glad to found this thread , DIY and it works, save me lots of $$$ as was quoted $100 plus or just change to a new ones as was told not wotrh to repair but now just works fine and the display came alive again, thanks....
a resistor came off, and i lost it. where can i get a new one and what do i ask for?
Mine is the Kenwood KDC-832U. Same sympton. Display out, but everything works. The display came back on once & then never again. Then the rest of the receiver woiuld not work at all, intermittently. Resoldering the resistors fixed it. On this model, there are no R numbers markings on the circuit board, but the resistors you need are all lined up on the right side of the board, and all marked the same way.
Thanks a lot Tech48.
I got myself a soldering iron, used it as you explained, and the display is showing again on my KDC-X590.
Soldering some of those resistors was a tough job, as the space there is small... but it took me only 10 minutes to make it work!
I want to make a donation as well!
Audio works just fine, all buttons on faceplate work perfectly fine, but visual on faceplate is totally out. Kenwood should have recalled this, as it happened less than a year after I bought the thing. I wish I had known about their warranty!
Tech48s procedure worked like a charm. I'm an experienced solderer and still found it a bit challenging to get at all these resistors since many are directly between the chassis and several large caps, but I got it done. One had virtually no solder on one pad, when I heated up the other side to apply more solder, it moved! Pretty sure that one was my problem. Although all of them seemed overly skimpy on the solder IMO. Many thanks to tech48 who saved me lots of trouble and an expensive repair since I probably would have bought a new faceplate first!
Same face plate problem. I will tell you how it goes
I put the deck back in and it is fixed. Thank you Tech48
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