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-   -   Nakamichi CD-350 Aux In thru changer solved! (http://www.diyaudio.com/forums/car-audio/193688-nakamichi-cd-350-aux-thru-changer-solved.html)

Driggs 29th July 2011 09:25 PM

Nakamichi CD-350 Aux In thru changer solved!
 
So I was able to boot up the CD-350 I recently got and lo and behold, when hitting source, it cycles to CDC for the changer!! No jumper or funky box needed! Wohooo..

That being said I went thru the Pins and found that Pin 5 on the 13 pin connector goes to the red wire for Right channel input from the changer and Pin 9 goes to the white wire for Left channel input from the changer.

Pin 7 appears to go the Ground for the input from the changer.

These three wires are shown in the pic below, towards the top, directly to the left of CN505 printed on the board.

I cut up a headphone cable I had, and confirmed glorious sound with no buzzing or anything!! Perfect!!!!

Tomorrow Im going to see if I can round up a 13 pin male cable and get to soldering some RCA inputs to it!

http://farm7.static.flickr.com/6004/...9072e5f4_z.jpg
http://farm7.static.flickr.com/6128/...f6099cbb_z.jpg
http://farm7.static.flickr.com/6145/...60653396_b.jpg

Driggs 31st July 2011 01:04 AM

Ive also sorted out the pin layout
 
Heres an image I drew up indicating the wiring I found..

Enjoy!

Artwork by myself

http://farm7.static.flickr.com/6029/...a9089ef3_z.jpg

Driggs 2nd August 2011 09:16 PM

I took apart a "Gigaware" iPod car charger with audio out and wired the audio and power into a 13 pin connector housing I got at the local parts store.

I kept the chargers power converter and what not to keep the voltage at the iPhone/iPods 5v and I do believe it has the needed equipment to give the iPhone/iPod the "ok" to charge and play tunes.

Yeah its a bit ugly, but for Version 1 its not bad. And it will all be hidden behind the stereo so who cares! :)

http://farm7.static.flickr.com/6123/...7902045a_z.jpg
http://farm7.static.flickr.com/6006/...541b174b_z.jpg
http://farm7.static.flickr.com/6013/...ee505fed_z.jpg

Smokestoomuch 21st August 2011 04:47 PM

Congratulations! Because of you, I had to join this forum! That's a pretty clever hack. I have some questions which I was hoping you could answer.
1) Does the CD-changer cable have wires that power up the CD-changer (like a signal to power up an external amp) or does it actually supply the power to the CD-changer?
2) If it supplies voltage for the CD-changer, what two wires does it use (please tell me what color are the wires).
3) For a unit that can be used as a pre-amp, it's strange that I can find no external amp power-up wire coming out of the main harness. How do you signal your external amps to power up?
Once again, great job on the hack.

kizzus 13th May 2013 08:21 AM

Great solution i do it too, but i've used a pair of RCA removing the cd changer cable.
Great sound quality but i think the lelvel is too big i hear some distortion at high level "due to clipping i think" , does anyone know the maximum level applicable ?!?

THANKS


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