The headphone conductors are very thin. After a short period of use, they are frayed. Most often this happens in the plug. This malfunction can be eliminated by soldering.
Necessary
- - soldering iron;
- - wooden plank;
- - nippers;
- - pliers;
- - ohmmeter;
- - cambric;
- - heat-shrink tubing;
- - lighter;
- - glue gun;
- - new plug.
Instructions
Step 1
If headphones are connected to a signal source, disconnect them by pulling out the plug. Your further actions depend on whether you want to keep the old plug with some deterioration in appearance, or you want to replace it with a new one. To preserve the existing plug, carefully remove the soft shell from it with pliers without damaging the hard plastic pin inside it. This will take you to the soldering points. If you decide to replace the plug with a new one, cut off the old one.
Step 2
Remove the conductors covered with colored insulating varnish from under the sheath of the cord. The length of the stripped conductors should be about 15 mm. Their color coding is as follows: silver or gold - common; green or blue - left; red or orange is right. Tin the conductors about 3 mm long. Do not use matches, lighters to free the conductors from insulation - then not only the varnish will burn out, but the copper will also blacken, which will make it difficult to tin. Press the conductor, on which the rosin has been previously applied, to the board and run it several times with a tinned soldering iron - the varnish will burn out, and the copper will get tinned.
Step 3
To preserve the old plug, first unsolder the remnants of the conductors from the soldering points. Place heat shrink tubing over the entire cord. Solder both common conductors to the terminal farthest from the interface between the protruding part of the connector and the case. Solder the conductor corresponding to the left channel to the outermost pin, and the one corresponding to the right channel to the middle one.
Step 4
Check the headphones with an ohmmeter: if you connect it between the common wire and the contact of a channel, you will hear a click in the corresponding speaker. If this does not happen, and the arrow does not deviate, you have made an open circuit, and if there is no click with the deviating arrow, you have a short circuit. Correct any errors.
Step 5
Fill the rations with glue from a gun, and when it cools down, put on the heat shrink tube so that it does not cover the protruding part of the connector, but covers all the rations, then warm it up with a lighter so that the tube shrinks and grabs the plug. You cannot overexpose it - the tube can become charred and even catch fire. Now check the headphones again with an ohmmeter.
Step 6
To install a new plug, remove the cover from the plug and thread the cord through it. In this case, the internal thread of the cover must face the connector. Put a thick cambric over the cord, and thin ones over the conductors corresponding to the channels. It is not necessary to put on separate shims on the cores of the common wire. If the cover is metal, put the tube on the cord, which you find in the plug, after removing the cover from it.
Step 7
Solder both common conductors to the long protruding plate, first passing through the hole in it. Solder the conductors corresponding to the channels to the small terminals, having previously determined which of them corresponds to which contact: the middle (left channel) or the far (right). Close the places of the solders with small cambric, and then cover the entire area where these solders are located with a tube from the plug kit. Check the headphones with an ohmmeter in the same way as in the previous case. Replace the cover and check again.
Step 8
If no faults are found in the plug after repair or replacement, plug the headphones back into the signal source and you can use them.
