This is a rather old headphones, it have more than 10 years of history and today, it came into my mailbox requesting to be refurbished.
The owner claims that the drivers are not producing any more sounds and have been left aside for quite sometime. A simple continuity with a multi meter shows that the 3.5mm-2.5mm detachable cable still is good shape. There are some jiggling sounds when I am moving around with the headphones, which means there are something is not in the right place. This can be really bad.
Time to open up the driver to get a quick look inside:
Looks like a total disaster inside, the neodymium magnet fell off the driver unit and stick itself to the headphones back grill. The voice coil is ripped off from the plastic membrane and the 2.5mm jack fell off from it's original placement.
With a better closeup look on the driver, we can see that the glue securing the neodymium magnet is no longer holding up well due to degradation over time. After placing the 2.5mm connector board in it's own place, we can see the ground for the bridging wires is also disconnected too, that explains why the other driver is not working at the same time.
And hold up..
It appears that there are 2 tones of color on the soldering joints. The darker color is most likely due to the oxidation caused by the heat from the soldering iron. I wonder if there are someone done an operation before I did.
Well, there is probably nothing that I could do much at this point as the driver is already in a really bad shape.
It's a open semi opened back headphones, the back gill is made from metal, some rust can be seen on it, I guess this is more of a budget headphones. The band made from plastic and there are some hairline cracks on it. This headphones sure does been through quite alot of stuffs.
Time to open up the driver to get a quick look inside:
Looks like a total disaster inside, the neodymium magnet fell off the driver unit and stick itself to the headphones back grill. The voice coil is ripped off from the plastic membrane and the 2.5mm jack fell off from it's original placement.
With a better closeup look on the driver, we can see that the glue securing the neodymium magnet is no longer holding up well due to degradation over time. After placing the 2.5mm connector board in it's own place, we can see the ground for the bridging wires is also disconnected too, that explains why the other driver is not working at the same time.
And hold up..
It appears that there are 2 tones of color on the soldering joints. The darker color is most likely due to the oxidation caused by the heat from the soldering iron. I wonder if there are someone done an operation before I did.
Well, there is probably nothing that I could do much at this point as the driver is already in a really bad shape.
Comments
Post a Comment