You go into the room, turn on the switch, but the chandelier does not light up, even though the lamps are intact and in place. Before buying a new chandelier, you need to check everything, maybe the switch does not work or the contact has oxidized somewhere.

When troubleshooting, it should be remembered: in Soviet times, wiring was often done so that the switch interrupted the neutral wire, according to modern requirements, the switch must necessarily break the phase wire. Therefore, today in the apartments there are both options, which can cause additional difficulties.

For example, take a chandelier with two groups of lamps, each of which is turned on by its own switch button. If all the lamps do not work, therefore, a malfunction should be sought in the general part of the circuit for both groups of lamps. And this is the section from the box to the switch ...

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 ...

In today's article, we will consider laying the TV cable to the apartment, its wiring to the television signal receivers, and the main points and rules that must be taken into account in this, so that in the future, the image and sound quality on your TVs are excellent.

For successful installation of a TV cable, it is necessary to take into account some rules, the specifics and features of this type of work, which we will now consider.

What are the general rules and features of the process of laying and connecting a TV cable in an apartment? We will consider the most difficult version of the work - this is the supply of the TV cable from the staircase (interfloor panel board) to the apartment and its subsequent wiring to the television signal receivers in it. When laying a television cable, you need to remember the following ...

The topic of LED lighting is, recently, one of the most popular. In most cases, on the Internet, among home-made light sources, I had to meet lamps made of separate LEDs and installed in the body of a faulty energy-saving lamp along with a power supply.

This arrangement allows the use of an LED lamp instead of a conventional incandescent lamp without any alteration of the lamp. Some disadvantage of this design is to recognize the relative complexity of manufacturing a printed circuit board, which usually has the shape of a circle.

However, at the present time, LED strips have become very popular. But, as a rule, they are used mainly for decorative lighting and very rarely - as lighting. However, if not for main lighting, then for local illumination of certain areas ...

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 ...

From a burnt compact fluorescent lamp, you can make a replacement for it and at the same time it will be almost eternal. I will tell you how to do it.

Assembly: The burnt-out compact fluorescent lamp must be carefully disassembled and the new circuit soldered by hinged mounting directly inside the base. Leave the fuse that was in the lamp. Diodes 1N4007 are extracted from the board of the same lamp. To them we add a capacitor 1mkf 630 volt K73-17 and one electrolyte. The electrolyte is suitable for almost any voltage of 50 volts or higher, well, and with a capacity of more than 100 microfarads. Still need 4 pieces of LED strip. As a rule, the tape is produced so that it can be divided into pieces of 12 volts.

In this case, on one such piece 3 LEDs. Cut 4 pieces of 3 LEDs and turn them on sequentially. So that the parts do not hang out, inside the cap they can be glued with any glue ...

The article provides a real-world example of the refinement of a cheap extension cord by amplifying electrical contacts and replacing wires. The result is a good and reliable extension cord, in no way inferior to expensive analogues.

Currently, more and more portable electric appliances and tools are being produced. For them, often for work, extension cords are required. And there are plenty of this product in today's market: from cheap to expensive. Extension cords, which are more expensive, can meet all the necessary requirements, but which are unlikely to be cheaper. But once they are, then naturally the people also buy them. Maybe because they don’t know which ones are better, which are worse, or maybe for financial reasons. And once having bought a cheap product, it ceases to work normally, namely, as they say - "phase, that is, it is not there." The main reason that a cheap extension cord does not work well is poor contact ...

This article is more of a fact-finding and recommendatory nature and, perhaps, stopping someone from taking ill-considered actions, from the desire to independently connect the generator.

So, how to connect the generator? If you drive the phrase “How to connect the power station to your home” in Google, then you will get a link to the YouTube video, where the bearded uncle shows clearly what to do, in what order to connect, where to stick. Whether or not to follow his instructions for connecting the generator is a purely personal matter, but we would not recommend doing this, since this method is extremely dangerous for both the generator and others.

I will tell you one case from my own practice. In a nutshell about yourself, who I am and how I make money from bread))). I am engaged in the sale, installation and maintenance of generators. When selling mini-power plants, we usually offer customers ...