DIY microphone repair

This is exactly what I did when the sound from the microphone disappeared on the Nokia-1209 phone. That is, you can hear the interlocutor, but not me. Two options are assumed here: either the transmitting part flew out, but then the mobile phone would not be able to contact the base before the start of the conversation, or the problem is in the microphone.

We disassemble the phone and inspect the board, parts, contacts. Please note that the microphone is not soldered to the printed circuit board, as is done in most models, but is connected via springy brass strips.

We remove it from the body of the device and call it with an ohmmeter.

A working microphone should ring in one direction with a voltage drop similar to that of a diode, and have a resistance of a couple of tens of kilo-ohms in the other.

The photo shows that the microphone does not ring at all. Presumably he was out of order. In this case, finding and buying a similar one will be a big problem, since it is very difficult to get just such a non-standard model.

But as it turned out, the matryoshka opens even further - the microphone itself is installed in a small plastic case and connected to brass strips through. other brass strips! Such is the double adapter.

We take it out of the holder and check it again with a multimeter - this time the microphone showed a normal resistance value. He is a worker, and the only problem is poor contact. By bending and cleaning the strips, we restore it and assemble it back into the body.

Now the mobile phone works as it should, not suspecting that it was a hair's breadth from raskurochivanie for spare parts :) Hence, we can conclude that it is advisable to minor contact repair of phones, even people who do not have serious experience in electronics, because often the device does not work as a result of banal bad contacts.

Video (click to play).

How do I get my microphone repaired?

Karaoke is considered a very fashionable hobby today. And, of course, it needs a microphone. Also, the microphone is useful when communicating with friends on the Internet via Skype or similar services. But microphones also tend to break.

First, try to determine what happened to the microphone. It may break or become less sensitive. If the microphone is professional and very expensive, then you do not need to try to repair it yourself, but it is better to contact a specialist.

If you still want to repair the microphone yourself, then first check that it is properly connected to the device. If it connects to a computer, then you need to check for the presence of special drivers. Also check the integrity of the wire, if something is wrong, then change it to a new one. If the microphone still refuses to work, then carefully disassemble it and check all the contacts. It may be that you just need to bend or straighten something and your device will work again.

If the sensitivity in your microphone has decreased, then this may be due to clogging, moisture ingress, or from a break in the incoming wire. You already know what to do with the wire. If the microphone is clogged, then disassemble and clean it. But if it is built-in, then first disassemble the device itself, and then take out the microphone. Gently wipe off the dirt with a cotton swab soaked in alcohol. Make sure that there is no wool residue left afterwards. Then put everything back together.

Moisture in the microphone is caused by condensation due to temperature fluctuations. To eliminate such a malfunction, you also need to disassemble it to release the head, and carefully dry it with an incandescent lamp or hairdryer.Then collect everything back.

However, constant contact with technology requires some new knowledge from us. That is, if you want to use technology, be prepared for the fact that you will need to learn how to do basic repairs of your devices. The problem that is encountered very often is the malfunction of microphones in phones, headsets and microphones to computers. Note that repairing a microphone is usually not difficult, repair is elementary. However, more often than not, we waste time, money and nerves in order to take the microphone to the workshop.

There are three common problems that render a microphone unusable. If you consider the problem carefully, then you can solve it yourself.

1. The microphone loses sensitivity due to clogging. Dust, skin microparticles, fine debris gets on the sound-sensitive head and it loses its properties. To fix the microphone in this case, you need cotton wool and a screwdriver. You need to free the microphone. To do this, sometimes you need to unscrew the phone case, or remove the cover from it. Then dip the cotton wool in alcohol and very carefully remove the plaque from the head. Make sure that the cotton does not stick to it. Let the alcohol evaporate and place the microphone back.
2. The microphone loses sensitivity due to moisture. Condensation sometimes lingers between the gaskets and the head. As a rule, the head itself does not rust, but the moisture does its job. Again, you need to free the head and warm it up under an incandescent lamp. If there are gaskets, do the same and take them off.
3. The microphone is damaged by a break in the incoming wire. There are two options here - to change, or to solder. They need to be applied based on the specific situation. In telephones, most often you need to solder a broken wire. In headphones, there are situations of wire breakage in several places, it's better to change everything here.

If the problems are more serious, they change the entire node, especially when it comes to the phone. As for the headsets, it's better to just replace it completely.

The first step is to determine exactly what is wrong with the microphone. The most common is:
- the microphone stopped working -
- decreased sensitivity.

If the microphone is professional (and, as a result, expensive) or built into another device (computer, camera, music center), then you should not undertake repairs yourself. Better to see a specialist.

If, nevertheless, you decide to repair it yourself, check that the microphone is connected to the device correctly. If this is a computer, then you need to check for the correct drivers.

If the problem is not resolved, then check the integrity of the wire. If it finds a defect, replace the wire with a new one.

If the microphone still does not work, then disassemble it, check the reliability of all contacts. Perhaps it will be enough to fix or bend something to restore the device's functionality.

If the microphone sensitivity has decreased, this can happen most often for three reasons: a blockage has occurred, moisture has got inside, or there is a break in the incoming wire. The way to eliminate the last cause was discussed in the previous paragraph.

If the microphone is clogged, disassemble it. If this is a built-in microphone, then you need to first disassemble the device itself and remove it. Next, wipe the dirty part of the microphone with cotton wool soaked in alcohol. At the same time, make sure that no cotton particles remain on the wiped surface. Reassemble the microphone carefully in reverse order.

Moisture in a microphone is condensation that forms when the temperature changes, high humidity. To eliminate this malfunction, as in the previous case, release the microphone head and dry in a dry place using an incandescent lamp or hair dryer, without damaging the head. Assemble the microphone.

The first step is to determine exactly what is wrong with the microphone.The most common is:
- the microphone stopped working;
- decreased sensitivity.

If the microphone is professional (and, as a result, expensive) or built into another device (computer, camera, music center), then you should not undertake repairs yourself. Better to see a specialist.

If, nevertheless, you decide to repair it yourself, check that the microphone is connected to the device correctly. If this is a computer, then you need to check for the presence of the appropriate drivers.

If the problem is not resolved, then check the integrity of the wire. If it finds a defect, replace the wire with a new one.

If the microphone still does not work, then disassemble it, check the reliability of all contacts. Perhaps it will be enough to fix or bend something to restore the device's functionality.

If the microphone sensitivity has decreased, this can happen most often for three reasons: a blockage has occurred, moisture has got inside, or there is a break in the incoming wire. The way to eliminate the last cause was discussed in the previous paragraph.

If the microphone is clogged, disassemble it. If this is a built-in microphone, then you need to first disassemble the device itself and remove it. Next, wipe the dirty part of the microphone with cotton wool soaked in alcohol. At the same time, make sure that no cotton particles remain on the wiped surface. Reassemble the microphone carefully in reverse order.

Moisture in a microphone is condensation that forms when the temperature changes, high humidity. To eliminate this malfunction, as in the previous case, release the microphone head and dry in a dry place using an incandescent lamp or hair dryer, without damaging the head. Assemble the microphone.

A modern person experiences discomfort if he does not have a mobile device at hand. But constant contact with technology obliges us to understand some things from scratch. This means that if you want to use modern technology, then you need to be prepared for all unforeseen situations. Devices need constant maintenance, and sometimes even repair, which is easier to carry out on your own than to give any amount for fixing minor problems in a service center. There is one problem that most users have already encountered, and that is the unstable operation of the microphone, which is built into the mobile phone. You may need to repair or clean the component to fix the problem. Today we will learn how to clean a microphone in your phone.

There are three most common problems that can render your audio recorder unusable. Careful consideration of each of them will help you solve the problem on your own.

Dust accumulations, skin particles, small debris can get on the sound-sensitive head of the microphone, which leads to the loss of its useful properties. To repair in this case, you will need to get cotton wool, an alcohol solution and a screwdriver:

• Disassemble the phone, or rather its case, and take out the microphone.
• Now dip the cotton wool in alcohol, the main thing is not to overdo it.
• Use gentle strokes to remove all dirt from the sound sensor head.

Important! Make sure that no cotton particles remain on the surface of the devices.

• Now wait until the alcohol has completely evaporated and return the microphone to its place by tightening all the screws securely.

Condensation often forms between the gaskets of the microphone and the microphone head. The head itself is not subject to corrosion, but moisture still does its job. Again you need to disassemble the case, release the head and put it to warm up under an incandescent lamp.

Important! An ordinary table lamp will do just fine with this. If the device is equipped with gaskets, then the same actions should be carried out over them.

Another reason for the failure of the recorder is a break in the incoming wire.There are two options for refurbishment for this case: replacement and soldering. You need to choose one of them, focusing on a specific situation:

• The best option is to use a soldering iron to repair the broken wire.
• But if the wire in the headphones has breaks in several places, then it is better to replace everything at once.

How do I get my microphone repaired? If the problems with it are more serious than the above, then the entire unit should be replaced, especially when it comes to a smartphone. But if there are serious problems with the headset, then it is better to just buy a new one.

In order to find out if the device works, you need to get a multimeter or analog tester, which has an ohmmeter built into it. Disassemble the phone case, remove the microphone from it and ring it with an ohmmeter.

Important! A working microphone should ring out like a diode in one direction, and in the other - the measuring device should show somewhere around 20 kOhm. If the values ​​on the device differ from the nominal, then the component is defective and it will need to be replaced.

First you need to determine the exact cause of the breakdown, and the type of breakdown itself. The most common complaints usually occur about the following things:

• The microphone stopped working.
• The sensitivity of the microphone has decreased.

If you still undertake the recovery procedure yourself, then:

1. First of all, check if the device is properly connected to the phone. Perhaps the integrity of the wire is broken, then you will have to wield a soldering iron.
2. If the microphone does not work even after that, then you should take it out of the case and disassemble it. Check the integrity of all its contacts, you may need to bend or fix something in order to bring the device back to life.

Important! As a rule, such simple preventive work is carried out in a complex. Other parts are cleaned at the same time as the microphone. For step-by-step instructions for doing this work with your own hands, read the following articles:

In order to replace an old microphone with a new one, you need to follow the instructions below:

• Unsolder the old broken microphone using a soldering iron and a blade. If you look at the whole structure from the side, then you can notice the soldering of the contacts, which needs to be warmed up.
• Now you need to shove a flat blade under the microphone, while warming up all your legs. Further, we simply separate the microphone from the microcircuit, without applying much effort.
• Inspect the microcircuit for contamination, clean it with an alcohol-based liquid and remove the “remnants” of the microphone. Now you need to prepare the site on the microcircuit in order to install a new microphone.
• Using a soldering iron and solder, we sit the microphone on the vacant platform. If necessary, you can use old wires.
• Now you need to lightly press the sound recorder to the board and solder the wires sticking out in all directions to the contact pads.

Important! Soldering should be done quickly to avoid overheating.

• We remove surplus consumables and check the device for performance.

Important! When the inside of the device is clean and serviceable, you can pay attention to its appearance. Read about the most effective ways in the following articles: