Question about Kenwood DPX-4030 CD / Cassette Player
On my 532u everything works but there is no disply can you help me how to fix the problem please
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.
...and here's a close up of the board and the resistors....
Hope it helps. Thanks Tech48!!!! It's like I've got a new stereo!!
Posted on Jul 08, 2009
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
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
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
Ok.. :o) O meu tbm funcionou!! Deu Certo!!! Obrigado!!
São Paulo - Brazil..
Posted on Sep 19, 2009
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
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...
Posted on Aug 29, 2009
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.
Posted on May 27, 2008
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.
Posted on May 19, 2008
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