How to Repair Damaged Earphone

Hi, friends. We all face problems with damaged earphones.Sometimes no sound comes out of it or one of the speakers stops working. But, headphones get damaged hardly. Main problem occurs due to loose connection. You can fix this with simple tools which you can get any electronics shop. 1. Soldering Iron, Soldering wire. 2. Continuity tester (If you have multimeter then you can use it or I will post on how to make continuity tester) Now, come to the main point. The circuit diagram of most of the headphones is like that-

Here the jack has four rings. As there is no standard color coding for earphone, every company has its own coding( even same company changes it for different models of phone! may be to produce artificial crisis!). But when I came across different earphones, I understood one thing that all this earphones have one thing common and that is the first two rings are always for audio output (its color may be RED, GREEN. May vary). The picture underneath is the jack of Micromax E313

Now comes the necessity of continuity tester. If you know how to use it then It's fine, if you don't I will write blog on this topic in future. Now, the problem arise due to following causes- 1. Wire is not connected.2.Loose connection. Wire of the headphone is damaged.

Jit,