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Fix SA5000 break voice coil !

post #1 of 11
8/15/11 at 7:38pm
Thread Starter 

 My friend have been send to me it with the left driver break.

 I check and see this driver is broken voice coil.

SA5000.gif

 

 Open the driver...

 

 DSC00178.JPG

 

 DSC00181.JPG

 

Fix... (continous)

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post #2 of 11
8/16/11 at 2:00am
Are you sure it is the voice coil? The cables are notoriously bad on the SA5000. I had to fix mine. Be sure that it isn't the cable.
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post #3 of 11
8/16/11 at 2:08am
Thread Starter 

 I'm sure 100%.

 Before open it, i've check impedence by digital multimeter... it's over 20M Ohm

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post #4 of 11
8/16/11 at 6:57am

Thats across the driver? NOT at the plug?

 

If the drivers are busted the best way to fix them is throw them in the trash and buy new ones. 

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post #5 of 11
8/16/11 at 11:41pm
Thread Starter 

 

Quote:
Originally Posted by nikongod View Post

Thats across the driver? NOT at the plug?

 

If the drivers are busted the best way to fix them is throw them in the trash and buy new ones.



 

 why ?

 

 

 Now I fix it's OK...

 See the new pic :

DSC00205.JPGDSC00207.JPG

 

I feel not diffirent in some songs...

 Wait to some body heart them !


Edited by espadon_vn - 8/16/11 at 11:52pm
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post #6 of 11
8/17/11 at 4:58am

 

Quote:
Originally Posted by espadon_vn View Post

 why ?

 

 

its rarely possible to achieve a long lasting fix that does not mess up the sound. 

 

Glad to hear you got them going in spite of it. Most people who have similar problems dont have the same luck as you did.

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post #7 of 11
8/17/11 at 7:33am
Thread Starter 



 

Quote:
Originally Posted by nikongod View Post

 

 

its rarely possible to achieve a long lasting fix that does not mess up the sound. 

 

Glad to hear you got them going in spite of it. Most people who have similar problems dont have the same luck as you did.


Yes!
  Edit it is not simple. And as far as I know, many people had to buy new headphone when encountering similar problems.
  For similar cases have made the success rate is> 50%. 
 

 

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post #8 of 11
8/29/11 at 1:50am

My left driver just broke too. Is there any way to buy a replacement driver? I don't think I can even send them in for repair because these were apparently not sold in Canada and thus the Sony website doesn't let me try to arrange for repairs. I'd really like to avoid trashing these headphones.

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post #9 of 11
8/29/11 at 1:57am

Well done on fixing it, it's a good headphone.

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post #10 of 11
8/29/11 at 1:58am
Zenja, are you sure the driver is broken?

The SA-5000 is notorious for bad cable connections. I've had to fix mine. If it's just the cable, then the repair is a simple solder joint.

Do you know how to open them up and test whether the voicecoil is shorted?
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post #11 of 11
8/29/11 at 2:17am

I recabled them a long time ago. The resistance of the cables from end to end is fine. The resistance across the driver pads (with the cups disassembled) is ~infinite. I'm pretty sure it's done for :(

 

After some searching, I see some places claiming to have the drivers, though none in stock. I wonder if they could actually get them or if it's just there for the hell of it and not worth trying. I'm not sure if the driver is even easily replaceable though. I just saw the service manual which shows you can twist the driver out to remove it, though i didn't notice that being a possibility when I looked at it before reading that. edit: I have the driver removed now, so they are replaceable if I can find another to buy.

 

Some places that may or may not sell the drivers:

http://www.partstore.com/Part/Sony/Sony/154260311/New.aspx

http://www.encompassparts.com/products/?SON1-542-603-11

http://www.partsimple.com/1-542-603-11-son-n-3.html

 


Edited by Zenja - 8/29/11 at 2:28am
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