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Left Denon AD 1001 channel not working. Picture inside of the diaphragm / soldering job. Thanks!

post #1 of 4
1/12/12 at 9:21am
Thread Starter 

 

This headphone has been busted for quite some time but today I decided to put it back together. Before, the wires were completely detached from the diaphragm, and just now, I decided to solder them back on. Still no sound is coming out...I soldered the red wire on the most left solder hub, and the green wire on the right most solder hub. 
 
What's could be wrong?
 
Thanks!
 
foto.JPG
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post #2 of 4
1/12/12 at 12:07pm

If the wires were detached, that implies that an amount of force was applied to them in order for that to happen. Are you sure that the cord itself is not broken somewhere?  

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post #3 of 4
1/12/12 at 12:50pm
Thread Starter 
Quote:
Originally Posted by Dazedy View Post

If the wires were detached, that implies that an amount of force was applied to them in order for that to happen. Are you sure that the cord itself is not broken somewhere?  



It's possible that the cord itself can be broken, but I'm not sure how to test that. The right channel works just fine. It could be something at the jack connecting to the computer. Perhaps I should try just recabling the entire headphone?

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post #4 of 4
1/12/12 at 3:04pm

Well you could always use a multimeter to test the voltage drop across the two wires while playing a tone or something.  That would at least tell you whether it's making a full circuit.

Also the wires you soldered on didn't have any sort of sheathing or insulation that could be blocking it do they? I know it would most likely burn off on contact with the solder, but hey, can't hurt to ask...

 

EDIT: you could compare the voltage drop for the dead earphone against the working one (if there is a voltage drop) - that way you know if there's a break inside the earpiece or in the wire. 


Edited by Dazedy - 1/12/12 at 4:07pm
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Head-Fi.org › Forums › Equipment Forums › Headphones (full-size) › Left Denon AD 1001 channel not working. Picture inside of the diaphragm / soldering job. Thanks!