Very often, the problem arises of failure of the charger of a mobile phone or other device, which is used to charge the battery charger. The main reasons why the charger may fail are as follows: wire breakage, failure of the charger unit, violation of the contact connection of the wire with the plug or charger unit.

Very often, the cause of the failure of the charger is a wire break or a violation of the contact of the wire with the structural elements of the charger - plug and block. In this case, you can repair the charger yourself. Consider the principle of repairing damage to the charger wire using a specific example of repairing the charger of a Nokia mobile phone (with a thin plug). To repair the charger we need: a multimeter, a knife, a soldering iron ...

This article provides an example of repairing the Nokia WH-205 headset with illustrative illustrations. This method is suitable for repairing any wired headset or earphones of a mobile phone.

Very often, owners of mobile phones are faced with the problem of failure of a wired headset (headphone). In this case, there may be no sound in the headphones or the microphone may not work. As a rule, a person acquires a new headset or gives an old one for repair. Why spend money if you can repair your headset yourself? In this article, we answer the question of how to repair any wired headset or headphones yourself.

Consider a good example of repairing a Nokia WH-205 headset. The main reason for a headset malfunctioning is damage to the wire or wire breakage at the soldering point in the microphone unit or to the plug ...

One of the most common malfunctions of modern DVD players is poor reading of data from the disc or even a complete lack of reading. There are about a dozen reasons for this problem. One of the first on the list is the loss of the emission of a laser diode, both a CD and a DVD diode. More often than the last.

Hence the selective reading, that is, the device does not read DVD discs, but perfectly “catches” and plays CDs. Or exactly the opposite. As repair practice shows, on average, the head of a DVD player lasts from 3 to 5 years. And every year this figure decreases, as well as the cost of heads.

What to do if your player does not read DVD discs, treacherously signaling “NO DISK” for all your attempts to watch your favorite movie after a hard day? Well, as I said, there can be about a dozen reasons ...

Electronic devices can be divided into two groups: mobile and stationary. The first of them use the so-called primary power sources, - galvanic batteries or accumulators that have a supply of electricity.

It immediately recalls mobile phones, cameras, remote controls and many other portable devices. In this case, rechargeable batteries and batteries are beyond competition, since there is simply nothing to replace them with. The only inconvenience, the cost of mobility is that the duration of such devices is limited by the capacity of the batteries, and, as a rule, is small. An exception to this rule are, perhaps, watches. Their energy consumption is very low, which is incorporated at the design stage, so the clock can go on a single battery for a whole year, or even more. Stationary devices, as a rule, receive power from secondary sources ...

The first part of the article described the history of the emergence and development of remote controls (remote control) for controlling household television equipment.

Despite all the technological breakthroughs, increasing the speed and number of teams, improving the design and noise immunity of the remote control, this is perhaps the most vulnerable node of the body and video equipment. It is he who gradually or immediately ceases to work, leading the hosts to bewilderment. Next, various typical malfunctions of remote controls and methods for their elimination will be considered.

The TV does not respond to any of the buttons on the remote control. The question immediately arises - what to do and who is to blame. Undoubtedly, it is necessary to start the verification with what is simpler, namely with the remote control. First of all, you need to check if the remote control works at all. It is very easy to do. It is enough to bring the remote control LED to the camera lens ...

Remember how in the cartoon “three from Prostokvashino”, Uncle Fedor’s mother said: “I’m so tired at work that I can’t even watch TV!” Apparently, this phrase is the answer to the question why all modern household equipment has infrared remote controls (RC). But, if you look, it all started much earlier.

The first work on remote control was carried out by the Germans in the late 30s of the twentieth century, even before the outbreak of World War II. The object of automation was a tube receiver. The control panel was a separate metal panel with buttons. Pressing the button triggered the actuator, - relay, electromagnet or motor. The connection between such a remote control and the receiver was made by a multicore cable, which still tied the listener to a specific place. Similar remotes were in the Soviet first-class tube TVs ...

The first thing to do is prepare everything you need for soldering: a soldering iron, a small sponge, solder, pliers or tweezers, side cutters.

Plug the soldering iron into a power outlet and dampen the sponge with water. When the soldering iron heats up and begins to melt the solder, cover the soldering iron tip with solder, and then wipe it on a damp sponge. In this case, do not keep the sting in contact with the sponge for too long, so as not to overcool it. By wiping the sting against a sponge, you remove the remnants of the old solder from it. And in the process, to keep the soldering iron tip clean from time to time, wipe it with a sponge.

Before soldering, soldered areas need to be tinned or use already tinned parts. Manual soldering is probably hundreds or thousands, and since then, almost nothing has changed in technology, resin (rosin), it was then resin, and tin and lead also did not change. Soldering Training Technique ...

A microwave oven has long settled in the kitchen of every home, in a cafe and even in an office. The ability to quickly warm up your favorite dish will not surprise anyone. But not so long ago, the microwave was a curiosity. Unfortunately, like any other technique, microwaves do not rarely break. This happens for many reasons. The fault can be caused by marriage in production and improper operation and unstable power supply.

When household appliances break down in a house, most people turn to repair shops. But far from everything - there are those who like to do everything with their own hands, and this article is for them. As you probably understood from the name, it will focus on the repair of microwave ovens.

If the circuitry for you is a dark forest, do not rush to close the page. This is much simpler than it might seem at first glance ...