In detail: do-it-yourself electronics repair video course from a real master for the site my.housecope.com.
His main profile is the repair of DVD, CD players, which made Andrey Golubev popular in his time. Then he began repairing microwave ovens, LCD TVs, monitors and other consumer electronics. And so the hobby turned into a real business, and then a desire arose to share the accumulated experience with others.
Have you ever watched how experienced specialists easily find faults and masterfully handle tools and measuring instruments? Many people are ready to constantly admire someone's work, without even thinking that they can learn all this themselves! Video tutorials are a fun way to learn. They are presented in accessible, simple language with good explanations.
The first video shows the process of repairing a home theater “LG”:
Receiver repair. Starting the repair of the receiver, first of all, it is necessary to conduct a visual inspection of the installation. Sometimes the problem lies in the elementary non-drip. This rule applies not only to the repair of receivers, but to all household appliances.
Recovery of a flat cable of a DVD-player head:
Repair of microwave oven LG MS-1744:
LG microwave oven repair. It all started with the banal replacement of the mica pad, and ended with the replacement of the transformer:
What to do if the microwave sparks? The mica pad needs to be changed. Replacing mica is not such a difficult business in microwave oven repair, and any housewife can do it.
We are repairing a domestic-made Samsung PDP TV. The cause of the malfunction is a defect in production.
Xoro LCD TV repair. This video shows how ridiculous malfunctions of modern television and radio equipment are.
Video (click to play). |
"LG" DVD repair. This video describes how to replace an optical converter on a DVD karaoke center LG.
The LCD TV does not respond to the remote control. The remote control itself is not always to blame for the lack of reaction to the remote control.
Samsung DVD repair. Some malfunctions sometimes seem to be completely unrelated to each other. So in this Samsung DVD repair - the failure of an element of one unit is reflected in the work of another.
Repair of the Sven subwoofer. The Sven subwoofer was not repaired - the amplifier chip UTC2030 (TDA2030) was out of order. Moreover, the microcircuit was torn to pieces. In addition, the path was burnt out.
Repairing a DVD, namely a switching power supply for a DVD player, is not much different from repairing other switching power supplies. However, each technique has its own nuances.
Microlab amplifier repair. The cause of the malfunction was the failure of the tda 2030 microcircuits
This video covers a couple of cases of DVD repair when the video freezes. In the first case, all suspicions point to the head. Especially heads of this type often begin to hang with “warming up” after 10-20 minutes of reading.
Hello friends. Finally, I found a normal course on learning how to repair LCD TVs and monitors. This is the course by Andrey Golubev, which contains 130 video lessons, which are filmed in simple language.
Here is an example video tutorial:
An example of a video tutorial on repairing an LCD TV power supply:
As you can see, everything is described in a simple and accessible language.
The lessons are divided into two parts, theoretical and practical. In the theoretical part, there are more than 76 lessons, which describe all the elements of the TV, modules, and basic concepts of radioelements.
The second part describes the practical part of the repair.
The course provides all the necessary knowledge to start self-repair LED TVs. It is a pity that at the beginning of my acquaintance with such TVs, I did not have such video lessons, since the lion's share of the repairs that were difficult for me, which baffled me, and which took weeks to solve, are included in this course.
If you are a beginner, or TV equipment repairs are a little incomprehensible to you, I recommend this course.
You can get acquainted with the course in more detail at this link .
Interested in electronics and electronics repair? Andrey Golubev's free mini-course will introduce you to the main points of electronic equipment repair!
The visual lessons presented in the course will help you find various problems in monitors, speakers, LCD TVs and DVD players.
- You will deal with one of the most important malfunctions of the switching power supply of electronic equipment;
- You will find out what the problem may be when household appliances refuse to execute commands from control panels;
- You will understand what soldering accessories and tools a master needs to have for creativity and work;
- You will learn how to replace faulty microcircuits and return the acoustics to working condition.
Hurry up to get the latest and most important content! More than 3500 people have already received the course!
The dishwasher, like any other type of equipment, sooner or later fails. Find out the most popular device malfunctions and a brief description of repair.
Find out the main causes of a washing machine breakdown and check out the DIY repair instructions!
What is the electricity consumption by an electric boiler per day, month, for the entire heating season. How can you save on electric heating at home or summer cottage?
An approximate calculation of the electricity consumption of an air conditioner. Find out how much electricity your air conditioner consumes per hour, day or even per month.
What are the breakdowns of washing machines. What to do if the machine knocks, does not turn on, freezes or does not heat the water?
Step-by-step instructions for replacing the heating element in the dishwasher. Find out what to do if the dishwasher won't heat the water.
Find out why Nivona coffee machines break down, what types of malfunctions are there, and how to repair equipment with your own hands!
Find out why heating elements break down in household appliances and heaters, as well as how to avoid such problems.
The method of replacing the heating element in the washing machine. Find out how to find the location of the heating element and replace it yourself!
The main reasons for the increased noise during the operation of the vacuum cleaner. Do-it-yourself troubleshooting methods.
An overview of the main reasons for the increased noise during the operation of the refrigerator, as well as how to repair the malfunction with your own hands.
Quite often, in hot weather, air conditioners begin to flow into the room. We discussed the main reasons for the leak and the repair methods in the article!
The main reasons due to which the electric kettle does not turn off when the water boils. Find out when it is worth repairing the device yourself, and when it is better to replace parts.
Even a person without knowledge of electrical engineering can call the heating element, the main thing is that there is a tester at hand. We described how to check at home in the article!
If your washing machine knocks hard during operation, you need to move on to repairing equipment as soon as possible. We have considered more than 10 reasons for this breakdown in the article!
Find out how to correctly connect the wires to a new plug by looking at the visual instructions in the photo examples!
Instructions for the repair of the TV remote control. Possible reasons for the breakdown of the remote control.
To clean or repair the boiler, it must be disassembled. How to do it carefully, read our article!
If your fridge freezes food in both chambers, it's time to fix it! What to do if the refrigerator freezes too much, we told you here!
Find out how you can open a locked washing machine with your own hands!
Find out the main breakdowns of electric boilers and how to repair them yourself!
A hair dryer for drying hair, in fact, like an industrial model, can be easily repaired with your own hands according to these instructions!
Find out how to repair a coffee machine yourself at home with a screwdriver and consumables at hand!
Hob breaks are rare, but repairing them can hit your budget noticeably. Find out how to repair your hob yourself!
If the airfryer fails, you can try to repair it yourself. Repair instructions are provided here!
Have you decided to clean the house and at the most inopportune moment it turned out that the vacuum cleaner does not draw air? Read here what to do in this case!
If you know how to use a multimeter and at the same time already have some skills in minor repair work, then why not repair your home electrical appliances yourself? Do-it-yourself home appliance repair is not difficult if you have step-by-step instructions at hand. This section of the site is just an assistant for those who want to fix a vacuum cleaner, washing machine, or the same electrical panel on their own.
We tried not only to describe all the presented repair technologies in text format, but also to attach visual video courses to the articles. As a result, judging by the reviews in the comments, more than a dozen of the same electrician's website visitors have already shared their positive impressions of the repair of household appliances with their own hands.
The nuance lies in the fact that in the instructions provided, we only talk about minor repairs - how to fix a refrigerator that freezes food very much, or how to disassemble a boiler for cleaning. For such a repair, you do not need to be a master and be able to do professional diagnostics. As for breakdowns in electronics, we do not talk about this, because in most cases this type of malfunction of household electrical appliances is best repaired at a service center.
If you did not find the answer to your question or did not consider the found material not fully disclosed, we recommend using the Question-answer form in order to describe your problem to our specialists! Read the instructions provided, carefully watch the video and then any repair of home appliances will be within your power!
Hello everyone. For those who want to understand the repair of LCD TVs and monitors, I would like to recommend the video course by Andrey Golubev, which contains more than 130 video lessons, the texts of which are presented in a very accessible language.
In this course, I discovered a lot of useful things, and thanks to the knowledge I gained, I repaired many different monitors and televisions.
Here is an example of one of the video tutorials:
An example of a video tutorial on repairing an LCD TV power supply:
As you can see, everything is described in a simple and accessible language.
The course is divided into a theoretical part and a practical one. In the theoretical part there are 76 lessons, in the practical part there are 54 lessons.
- 1 Lesson - Introductory
- 2 Lesson - Handy tool of the master
- 3 Lesson - Measuring tool
- 4 Lesson - Soldering accessories and equipment
- 5 Lesson - Learning to solder correctly
- 6 Lesson - Soldering through elements
- 7 Lesson - Soldering SMD elements
- 8 Lesson - Radioelements - Resistors
- 9 Lesson - Radioelements - Capacitors
- Lesson 10 - Radioelements - Diodes, Zener diodes
- 11 Lesson - Radioelements - Transistors
- 12 Lesson - Radioelements - Stabilizers
- 13 Lesson - Radioelements - Chokes, quartz, optocouplers
- Lesson 14 - Radioelements - Microcircuits
- 15 Lesson - Digital multimeter - Measuring voltage
- 16 Lesson - Digital multimeter - Measuring resistance
- Lesson 17 - Digital multimeter - We measure the capacity, current
- 18 Lesson - Digital multimeter - Tips for choosing
- 19 Lesson - Oscilloscope
- Lesson 20 - Programmer
- Lesson 21 - Soldering Station
- Lesson 22 - Tool of the XXI century
- 23 Lesson - Ordering spare parts
- Lesson 24 - Ordering spare parts from China
- Lesson 25 - Analog signal
- 26 Lesson - Digital signal
- Lesson 27 - ADC-DAC conversion
- 28 Lesson - i2c bus
- Lesson 29 - UART bus
- Lesson 30 - SPI bus
- Lesson 31 - Differential data transmission
- 32 Lesson - Analog interfaces
- Lesson 33 - TMDS interface
- Lesson 34 - LVDS interface
- 35 Lesson - DVI - HDMI
- Lesson 36 - Disassembly of TVs, monitors
- Lesson 37 - Anatomy of LCD TVs
- Lesson 38 - Power supplies - Introduction
- Lesson 39 - Power supply - Structure
- 40 Lesson - Power supply - Filter, Rectifier
- Lesson 41 - Power supply unit - Driving part
- 42 Lesson - Power supply - PWM (PWM)
- 43 Lesson - Power supply - Output circuits
- Lesson 44 - Power supply unit - identification, selection of PWM
- Lesson 45 - Power supply - Diagnostics
- Lesson 46 - Power supply unit - PFC
- Lesson 47 - Power supply - diagnostics with PFC
- Lesson 48 - Power supply unit - DC-DC
- Lesson 49 - The device of LCD panels
- 50 Lesson - CCFL backlight - EEFL
- Lesson 51 - Replacing lamps in monitors and TVs
- Lesson 52 - LED backlight
- 53 Lesson - Direct LED backlight
- Lesson 54 - CCFL monitor inverter
- Lesson 55 - Inverter. Principle of operation. Malfunctions
- 56 Lesson - CCFL TV inverter
- Lesson 57 - LED backlight driver
- 58 Lesson - Edge LED backlight for 3D TV
- Lesson 59 - LED backlight driver. Important points.
- 60 Lesson - LCD matrix. Introduction
- Lesson 61 - LCD matrix. Principle of operation.
- 62 Lesson - LCD matrix. Structure. Raster shaping
- Lesson 63 - LCD matrix. Inline drivers.
- 64 Lesson - LCD matrix. Column Drivers
- 65 Lesson - T-con (Timing controller)
- Lesson 66 - T-con Faults
- Lesson 67 - T-con Diagnostics
- 68 Lesson - LVDS select (JEIDA / VESA)
- 69 Lesson - Standalone Mode (Test)
- 70 Lesson - Main board
- 71 Lesson - Scaler
- 72 Lesson - EEPROM
- 73 Lesson - Flash
- Lesson 74 - Diagnostics 1
- 75 Lesson - Diagnostics 2
- Lesson 76 - Diagnostics 3
- 1 Lesson - Checking lamps, inverter
- 2 Lesson - MAG monitor replacing CCFL lamps 1
- 3 Lesson - MAG monitor replacing CCFL lamps 2
- 4 Lesson - LG monitor replacing CCFL lamps 1
- 5 Lesson - LG monitor replacing CCFL lamps 2
- 6 Lesson - Monitor Samsung backlight recovery
- 7 Lesson - Monitor Samsung inverter repair
- 8 Lesson - Philips TV inverter repair
- 9 Lesson - TV Rubin replacing inverter 1
- 10 Lesson - TV Rubin inverter replacement 2
- 11 Lesson - Monitor Samsung flashing SPI Flash
- 12 Lesson - Monitor Samsung flashing SPI Flash
- 13 Lesson - Philips TV initialization of EEPROM
- 14 Lesson - TV BBK sound problem
- 15 Lesson - DAEWOO TV does not see the remote control 1
- 16 Lesson - DAEWOO TV does not see the remote control 2
- 17 Lesson - Monitor LG power supply repair 1
- 18 Lesson - Monitor LG power supply repair 2
- 19 Lesson - Daewoo TV Power supply repair 1
- 20 Lesson - Daewoo TV Power supply repair 2
- 21 Lesson - Erisson TV Power supply repair
- 22 Lesson - TV Horizont PSU repair
- 23 Lesson - TV Erisson Power T-con
- Lesson 24 - Xoro TV
- 25 Lesson - SONY TV - PSU repair
- 26 Lesson - Sharp TV - PSU repair
- 27 Lesson - PHILIPS TV - PSU repair
- 28 Lesson - SAMSUNG TV - PSU repair
- Lesson 29 - LG TV - PSU repair (PFC)
- Lesson 30 - TV IRBIS - repair of power supply unit 1 (PFC)
- 31 Lesson - TV IRBIS - repair of power supply unit 2 (PFC)
- 32 Lesson - TV BBK - inverter repair 1
- 33 Lesson - TV BBK - inverter repair 2
- 34 Lesson - SAMSUNG TV - inverter repair 1
- 35 Lesson - TV SAMSUNG - inverter repair 2
- 36 Lesson - SAMSUNG TV - inverter repair 3
- 37 Lesson - Monitor SAMSUNG - replacing the inverter
- 38 Lesson - TOSHIBA TV - problem with the inverter
- 39 Lesson - LG TV - repair of the control unit
- 40 Lesson - TV BBK - repair of the control unit
- Lesson 41 - Control-related malfunctions
- 42 Lesson - Malfunctions associated with CCFL - EEFL lamps
- 43 Lesson - LVDS bus faults
- 44 Lesson - Technique for repairing LCD - matrices 1
- 45 Lesson - Technique for repairing LCD - matrices 2
- Lesson 46 - Filled Matrices - The Drowned
- 47 Lesson - Monitor SAMSUNG - LCD matrix
- Lesson 48 - TV SHARP - CCFL repair - backlight
- 49 Lesson - TV SHARP - Service menu
- 50 Lesson - SUPRA TV - LED backlight repair 1
- 51 Lesson - SUPRA TV - LED backlight repair 2
- 52 Lesson - SUPRA TV - Problem soldering
- 53 Lesson - SUPRA TV - floating sound
- 54 Lesson - TV BBK - power supply repair
This video course gives you all the knowledge you need to start a DIY repair. LED TVs and monitors. It is a pity that at the beginning of my acquaintance with such TVs, I did not have such video lessons, since the lion's share of the repairs that were difficult for me, which baffled me, and which took weeks to solve, are included in this course.
You can view full information about the course on LCD TV repair on the author's website by clicking on the button below.
That's all for now. Thank you for watching and good luck with the repairs.
A comprehensive training course in mobile phone repair is suitable for both beginners and professionals who want to improve their own level.
The course consists of two large sections and contains not only information on repairing mobile devices, but also a number of recommendations that can help a beginner decide whether he really wants to engage in such an activity.
In the first lesson, you will become familiar with the general anatomy of switching power supplies. Consider the basic concepts and important points that will help you diagnose and troubleshoot switching power supplies. In this lesson, you will learn the main functional features and the principle of operation of switching power supplies. Understanding how a power supply works is a universal key to repairing any type of power supply. PWM is a pulse width modulator that is an integral part of any pulse generator. This lesson will give you a complete understanding of the design and operation of the driver of the power supply. Consider the output part of the power supply, namely the output circuits of the supply voltages. How to correctly diagnose the secondary part and what are the malfunctions associated with the outputs of the power supplies. In this lesson, we will talk about the interchangeability of PWMs, because there are a lot of them. In addition, often when the power supply breaks down, the PWM controller microcircuit breaks apart and we need to identify it without any circuits. Where to start looking for a problem with a faulty power supply? What could fail in the first place, and what in the second? How and where to take the required measurements? You will learn about all this from this video. Moving on to the "heavy artillery" of the impulse. Despite the fact that TV power supplies may look intimidating to you, they only include 2-3 standard power supplies described in the previous lessons. The approach to diagnosing TV power supplies is the same as for a cell phone charger, only there are several such power supplies in the TV module and they are more powerful, there is a mode control and a couple more nuances. Power Factor Corrector is one of the functional units of composite power supplies. What is it for, how it works and how to quickly find it on the power supply module for further diagnostics. This video tutorial will show you how to troubleshoot specific power supplies with PFCs. What you need to direct your attention to first of all when repairing such power supplies. Speaking of power supplies, one cannot but mention DC-DC converters. Now they have completely replaced linear voltage regulators. Let's consider the device and the principle of operation of these power stabilizers. With this lesson, we begin to practice repairs. We will make diagnostics, find the breakdown, the cause of the breakdown and bring the device back to life. Power supplies have one “disease”, I would even say that there are several of them, but one is constantly taking the lead. It is with her that it is necessary to begin the initial examination and testing. What kind of disease it is, and how to treat it, you will learn from this repair. Funny not in terms of “hry, I can’t,” but funny in terms of - cheap. This malfunction is often found in all switching power supplies from miniature telephone chargers to powerful power supplies for personal computers. The power supply unit of the computer has the same structure as the power supply unit of the TV. Faults and "sores" are exactly the same. We will analyze in this lesson the repair of such a feeder. One of the enemies of any equipment powered by a 220 volt network is voltage surges and drops. The reasons for such surges can be different and, of course, power supplies suffer from them in the first place. In this video tutorial, we will repair an LCD monitor whose power supply has just failed. You will find out what typical malfunctions follow the monitors. In this video, you are expected to repair the TV, namely its power module. Using this lesson as an example, you will learn how to quickly find the standby power supply unit, measure the standby power supply. It is the duty room that sometimes becomes the reason for the inoperability of the apparatus. Poor soldering is very often the cause of electronic equipment breakdowns. Solder eventually loses its properties and forms microcracks and so-called rings. Sometimes visual inspection is not enough and the tapping method comes to the rescue. Repair of the driving part of a switching power supply is probably one of the most time consuming. Of course, it all depends on how much the BP has suffered. Let's look at one of these repairs in this tutorial. And in this repair lesson, we will follow the stages of the passage of the mains voltage. We need to find a short circuit in the rectifier part of the PSU. My thoughts out loud will help you adopt a troubleshooting algorithm in such cases. Sometimes we cannot say for sure whether the power supply is at all, and sometimes the troubleshooting begins from other functional units, for example, from the power supply of the processor and memory. And only then we go to the power module. In this lesson, we finish repairing the DAEWOO TV, bring it to life, returning it to full and healthy nutrition. ) Thank you Andrey very much for this course. Very informative, and most importantly - competently. I studied the material in one go. I myself have been repairing equipment since the 70s. I dealt with switching power supplies in the 80s-90s, when they began to be installed in the Soviet TVs "Temp", "Spektr", "Record" and others. in one word 3USTST. These were the so-called MP-3-3. But a lot of time has passed since then. Hello Andrey, I am a beginner radio amateur, I acquired the basics of radio engineering in my youth when I was a pioneer. And then I accidentally stumbled upon your course and decided to return to the dream of my youth - to learn to understand radio engineering more professionally. I am very grateful to you for the course, I began to understand more meaningfully what works. Thanks to your course, I recently repaired a DVD set-top box, though I don't have enough time to do what I love. I would be grateful to continue to receive educational materials from you on radio engineering. Best regards, Sergei On the Internet, I came across the course "Switching Power Supplies". I ordered the digital version, but unfortunately it did not work out to download due to an unstable Internet connection. The issue was resolved the next day. Andrey sent me the course on disk with a surcharge by mail. The course came on the 10th day. I bought courses on the repair of switching power supplies. Bottom line: Two DVDs, one TV, three computer power supplies, a car charger and little things (phone chargers) were repaired. I confess that I had some knowledge of electronic components. The author suggested how you can do without a diagram and description of the operation of the device. Thanks! Hello Andrei! I bought a course "Switching Power Supplies" from you to close questions with the principle of UPS operation. Ask, how am I doing repairs without knowing how the power supply unit works? The course can be studied This section contains my author's video tutorials on electrical engineering and electronics of their various topics. There is a wide range of topics collected here, from the basics of electrical engineering and electronics to serious topics in circuitry and electronic circuit design. Despite this, most of the videos are intended mainly for beginners to master electrical engineering and electronics. All suggestions on the topic of new video lessons can be sent through the feedback form on the contact page or in the comments to a specific video. Questions about the video tutorials are also welcome! If you want to be the first to receive information about the release of my new video tutorials on electrical engineering and electronics - subscribe to my YouTube channel The first lesson in electronics. The essence of electricity. Voltage and current. What is the difference. Second lesson. The essence of electrical resistance. Resistor. Ohm's law. Parallel and serial connection of elements. Radio electronics lesson. I tell on my fingers what an alternating voltage is. The principle of operation of the capacitor. Series and parallel connection of capacitors. How to calculate capacity? The whole essence of the diode and zener diode is very clear. What is an inductor. What properties does it have and why is it used? A short visual video tutorial. Analysis of the principle of operation of the diode bridge. Purpose of the capacitor and diodes in the rectifier. As always, I tried to describe everything in detail. I share my thoughts on self-feeding, perpetual motion machine, gravitational and anti-gravitational, magnetic and anti-magnetic engines, as well as free, free, free, and other all kinds of energy for which you do not need to pay. The number one electronics video tutorial series. Video taken from the channel "Radio Amateur": At one time I remembered so, but with the fires) And thanks for the post Fucked up, I got tired of autofocus for 1 minute of the first video. > _
@Rooost Everything you are talking about is just a wrapper, the main content. If by the content, which by the way begins only from the eighth minute, then the explanation is obtained in the form: “here are amperes, here are volts, but this is an electrical circuit, everyone is clear, we go further” Why is a voltmeter connected in parallel and an ammeter in series and how do they measure anything at all. What is all the same voltage, and what is current? As a result, it turns out that those who want to know about this topic will not understand anything. For those who know, there is nothing interesting. You must understand, I'm not just criticizing. Perhaps you will take note and will make the video even better, which will subsequently add subscribers and grateful responses to you. What an irony, I just finished a video on this topic yesterday! All these 10 fit in one =) Do not forget that Alexey has 10+ minutes of video, but here is a whole series of 10 videos. I'm not saying that you need to praise Tesla and Edison, which is what all sorts of nondophysicists sin about - everywhere they sing to Einstein, no matter what holes they talk about 🙂 But any electronics need to start with an explanation of the current and the electrical panel, the user must be able to screw in a light bulb and charge his Tesla without fried, and he will be able to fix the microwave in in-depth lessons. This is not programming, current is serious. In your opinion, programming is not a serious thing? Of course, for an error in the code, the author will not kill on the spot, but let's assume that the error was in the code for any technique, say, an airplane autopilot, or a controller on a life support system at a space station, well, or banal programming of robots at an auto assembly plant, this is an important thing and the results of an error can also easily lead to fatal consequences. it is obvious that estress was not going to offend programmers) the bottom line is that the fundamentals of electricity is precisely the current. I, too, did not know anything about the current before these videos, in physics at school I ignored this topic deafeningly. but it was just such videos that I was looking for until recently, in order to start from somewhere. however, a very big minus, as I also noticed, is that in the video they operate with the concept of “current”, without explaining what it is in essence, except for “directed motion of charged particles”. And no one will entrust the coding of the autopilot of an airplane to a coder who does not know such basics as logical functions, for example. and if the course is for future electronics engineers and radio amateurs, who can really then climb into the dashboard, then it is necessary to explain and show what and how.
Since the 90s, I have hardly renovated or designed anything. Much has changed in radio electronics over the past 2 and a half decades. Moreover, much has been forgotten, what to hide.
For me, your video course has become a kind of return to the past. I refreshed old knowledge and, of course, learned a lot from your lessons. I remember that even in the first switching power supplies, only PWM, or as it was called before - a blocking generator, included a dozen stages on transistors, and now everything was crammed into the case of one microcircuit.
You are very clear and interesting in telling everything that it is simply impossible not to study the material submitted by you. Not every specialist in their field is able to explain so simply and unobtrusively the work and arrangement of rather complicated things.
Good luck with your creativity and look forward to new courses from you!
Sincerely, Vladimir
I am not a beginner in electronics for a long time, but difficulties constantly arise with repairs of power supplies. Knowledge is never too much - that's why
the principle I live and constantly learn. And here I made the right decision, as it turned out - I simply did not know a lot of things. The course is worked out competently - from theory to practice. Lots of troubleshooting examples.
Thanks to Andrey for his work, he is doing a very necessary job.
And that's how I'm repairing: I changed the electrolytes - I didn't go. changed the optocoupler - did not go. changed the PWM - did not go. Until you get to the resistor with the floating resistance in this way, you will go over everything. And believe me, I'm not the only one!
After watching the course, I seemed to have a puzzle in my head and I, just like you began to relate to repairs: "Why do you need a diagram if you DO NOT know the principle of operation?" I would even paraphrase - "Why do you need a scheme if you KNOW the principle of work!" And indeed, when you know how everything works, you do not need any scheme in order to find a breakdown.
In fact, all power supplies are similar to each other, differ only in power and output voltages. Your lessons really change the way you think about a lot of things about electronics diagnostics.
Great senkyu for you!
Your namesake, Andrey Nikolaevich
as on Windows system,
and on OS X (Mac OS)
Video (click to play).