MY set of speakers from Edifier gathered so much dust that I wanted to replace the broken audio jack immediately. And so I asked my Dad to get me a replacement jack from an electronics shop, borrowed his soldering iron, Digital Multimeter and some tools like wire cutter and long nose pliers. Yes, definitely sounds like Electronics Engineering. I don’t know how this thing works, especially when I removed all insulations and found out that there’s three wires, instead of the supposedly-obvious two. Nevertheless, I pushed through, assuming that the big wire goes to ground (nah, skip that term).
The anatomy of a 3.5mm audio jack.
So I tried to know first the places to solder by checking the continuity of the terminals. After knowing where to solder the specific wires, I encountered the problem of knowing which one goes for the left and right speaker. Happily, the wires the same color indicators as the speaker plugs. 
However, I don’t know also where on the jack to solder the left and right wires. So I resorted to the last thing to do: internet. After knowing everything I need to know, I pushed through with soldering the wires. BOOM, it’s now working and working BAD-ASS again!
Time to remove the dust!
Now my BOOM BOX is working again. I still have one spare jack left and I think I’ll use it to replace the jack of the SENNHEISER headphones here. Now, there’s no need for me to pay the damages, I can mend the damages myself! Or maybe not… unless I get my own set of equipment. Oh well, cheers to heavy BASS! xD
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