Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library


Details of the available documentation for imported and domestic equipment.

In addition to the circuit diagram, there is a repair and configuration manual, as well as an instruction manual.


Diagrams and service manuals for TVs, video and audio equipment

Schemes and service manuals of popular models of foreign equipment:



Diagrams and service manuals of foreign TVs and video equipment:



Schemes and service manuals of mobile phones for free



Diagrams and service manuals of household appliances for free



Schemes and service manuals of machine tools and electric tools for free


Schematic diagrams of foreign equipment on order


Schemes of domestic equipment, models of different factories for free



Schemes of domestic equipment, models of one plant for free


Schematic diagrams of domestic equipment under the order



Latest news of science and technology, new electronics:

Blinking of the magician and his audience 19.05.2024

Magic and illusions have always captured the attention of the public, but what happens behind the scenes of the magician and in the brains of his audience? Scientists from the UK decided to solve this mystery by conducting a new study involving ten illusionists of varying experience. Illusionists, some of whom had been practicing magic for more than half a century, others for only six months, were invited to demonstrate the same trick - the popular coin trick. Recordings of their performances during training and on stage showed that each of them began to blink significantly more often at the moment of performing the trick. The study's findings indicate that magicians' blink rate may be related to unconscious aspects of their performance. At the same time, as scientists have found, spectators also begin to blink more often, following the movements of the illusionist. This observation supports the idea that magicians may be catalysts for blinking in audiences. Additional research has shown that magicians blink more often during ... >>

Ultrasonic coffee machine 19.05.2024

Iced coffee has become an integral part of coffee culture in recent years. Therefore, engineers from the University of New South Wales decided to improve its preparation. They have developed an ultrasonic coffee machine that reduces the cold brew time for ground coffee beans from 12-24 hours to significantly less time. Iced coffee, or "Cold brew", is popular due to its smoothness, low acidity and low bitterness. It is prepared by steeping ground coffee in cold water for a long time. Unlike traditional hot brewing, which often imparts bitterness to coffee, cold brewing extracts more delicate and complex flavors from the coffee beans. The innovative system, presented by a team of engineers, introduces ultrasonic technology into the coffee preparation process. The system uses ultrasonic waves to speed up the process of extracting oils, flavor and aroma from ground coffee. This allows you to significantly reduce the time ... >>

The speech of sperm whales is similar to that of humans 18.05.2024

In the world of the ocean, where the mysterious and unknown coexists with the studied, sperm whales, with their huge brains, are of particular interest to science. Researchers, working with a huge array of audio recordings collected during the Dominica Sperm Whale Project (DSWP) - more than 8000 recordings, seek to unravel the secrets of their communication and understand the structure and complexity of the language of these mysterious creatures. By studying in detail the recordings of 60 sperm whales in the eastern Caribbean, scientists have revealed surprising features of their communication, revealing the complexity of their language. "Our observations indicate that these whales have a highly developed combinatorial communication system, including rubato and ornaments, which indicates their ability to quickly adapt and vary during communication. Despite significant differences in evolution, sperm whales have elements in their communication that are characteristic of human communication," says Shane Gero, a biologist at Carleton University and director of the CETI project. Issl ... >>

Random news from the Archive

Revealed the secret of successful people 14.03.2018

Scientists at the University of Catania conducted a study whose results could save millions of not-too-successful and wealthy people from self-flagellation and depression. They came to the conclusion that the success of a person does not depend at all on his innate talents, intelligence and ingenuity, but simply on a combination of circumstances.

The researchers created a computer simulation based on a real world money distribution model, according to which 85% of the world's wealth belongs to 10% of the world's population. At the same time, such qualities as talent, intelligence and efficiency are on average distributed evenly among the inhabitants of the Earth.

In the course of the study, the computer simulated a model in which a thousand people were represented with average statistical abilities and a level of well-being. Then random events were introduced into the base model, which could be used by the same "people". As a result, 20% of a thousand initially equal individuals captured 80% of the "wealth" after some time. The situation with variable parameters was repeated several times, but in each case the outcome was characteristic.

Based on the results, the researchers concluded that successful people are not necessarily gifted with any talents from birth, they can be the owners of the most ordinary mental abilities, but it is the luck to be in the right place at the right time that determines success.

From a practical point of view, the results of the study, according to its authors, can be useful when considering the effectiveness of merit evaluation systems. The study shows that a potential winner of this or that award and a candidate for receiving honors does not necessarily "deserve" them - perhaps he was just lucky.

Other interesting news:

▪ The most powerful solar power plant launched

▪ New DC/DC converter from Texas Instruments

▪ Cows in the virtual world

▪ Cota - technology for charging gadgets over the air

▪ Indians fly to Mars

News feed of science and technology, new electronics


Interesting materials of the Free Technical Library:

▪ section of the site Data transfer. Article selection

▪ article by Emil Michel Cioran. Famous aphorisms

▪ article How did some children's games appear? Detailed answer

▪ article Head of telephone and telegraph communications. Job description

▪ article Indicator of ionizing radiation on microcircuits. Encyclopedia of radio electronics and electrical engineering

▪ article Biogas from landfills. Encyclopedia of radio electronics and electrical engineering

All languages ​​of this page

Home page | Library | Articles | Website map | Site Reviews