How to repair earphones step by step guide | multipletechnologies300.blogspot.com

      Nowadays earphones are very important accessories because listening to music make us feel relaxed in any situation, not all the earphones sounds good specially the cheap ones,so I bought the earphones which was expensive and it was worth it because the sound quality was excellent, after some days while listening to music,I felt something that my earphones has damaged. the speaker started to sound weird,so I decided to repair it, because buying a new one is not a good idea at all. today ill show you in this blog how to repair the earphones so you also can save the money.

To repair the earphones first you have to know the types of earphones which are common, and things you'll need to repair.

1. Soldering iron

2.Solder wire

3.One 3.7v mobile battery

4.Hot glue gun or m-seal

5.Scissors.

Types of earphones
 Their are two types of earphones, one with mic and one without mic so the wiring of earphones differs.
refer to the picture shown below.

earphone with mic

earphone without mic

So,if you look the 3.5mm jack closely the earphones with mic consist of four ring like points separated with plastic layer and the earphones without mic consists of only three points.
refer picture shown below for 3.5mm jack with and without mic

earphone jack with mic

earphone jack without mic

1st point(tip) from the top with an diamond like shape is used for the left speaker.
2nd point(ring) is used for the right speaker.
3rd point(ring) is used as common for all smart phones excluding "some NOKIA devices",for NOKIA devices it is used as mic point,and 4th point(sleeve) is used as mic point for all smart phones and common for "some NOKIA devices".
refer to the picture for the pin configuration below.

Note:As we all know every electronic device has two terminals one positive (+) and one negative(-)

common(GND) point is the point where three negative (-)wires from all the devices are connected together On the common point,one wire from the left speaker,one from the right speaker and one from the mic. these common point wires are usually coated with golden color.
refer to the picture given below.

So now we have seen the types and wire configuration.But how to know what is the problem and why the earphones are not working?
The answer is simple and easy the wire is disconnected.if if one of your earphone speaker,or mic is not working the problem must be the wire of the device not connected positive or negative. or the earphones not working at all no speaker outputs and no sound input.

Step 1. You have to first cut the wire close to the earphone jack with scissors.

Step 2. Now you have to cut and remove the rubber insulation off the jack.

Step 3. Remove the outer rubber insulation of the wire to the required length,after removing you will see the colour coded wires.
common codes are: golden,red,green,blue.
golden(GND), red(mic), green(right speaker), blue(left speaker).

now you have to apply the solder to the wires.

(Important: The wires has a thin coating of clear insulation on it so please heat the wire to melt the insulation and apply solder properly.)

Step 4. After applying solder properly,connect the battery negative(-) terminal with the golden(GND) wire and positive(+) terminal one by one to the green (right speaker) wire and blue(left speaker) wire.

Right speaker check

Left speaker check

If the speaker sounds cracking like sound the speakers are working fine
Note: Mic cannot be checked with battery you have to finish soldering and try recording by plugging the earphone jack to the phone.

(Important: If the speaker is not working then the speaker has been damaged and you cannot repair the speaker because the diaphragm coil is made from very thinnest copper wire even more thinner than our hair)

Step 5. After you have done applying solder to wires connect the wires to the jack by soldering the wires to the 3.5mm jack.
refer to the picture shown below.

You have done 90% of the repairing work.Now check the earphones by plugging in to phone.
If both the speakers and the mic works you are done.


Step 6. Now apply the Hot glue or m-seal to the jack and let it dry completely to protect the wire from further damage.

Now you are done enjoy!



If you have any questions. Please comment down in the comment section below.

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