Highlight Tutorial Videos

We’ve been getting a lot of questions on forum about how to replace damaged, problematic or failed MOSFETs. And as many of them can’t be found easily on the market with the same specifications, we tried to show you how to find similar MOSFETs of...

Ahmad Safari

0

All About Transformers

Following the concept of Basic Electronics, we will analyze Transformers on this video, in a way that you’ll begin with showing you its symbol and the way it functions, then you’ll see how it’s tested and the different types of this electrical...

Davood Amanikor

0

How Do Relays work & How to Test them

Relay is one of the most commonly used electronic components and on this video, which is a basic electronic video, we will analyze different types of Relay including Solid State Relay (SSR) and Electromechanical Relay (EMR). We will also explain...

Davood Amanikor

0

Everything about Inductor

This is another episode of Basic Electronic series in which we will analyze an electronic element called Inductor. The most important theoretical and practical concepts of inductor (Coil or choke) element are covered on this video, from testing...

Davood Amanikor

4

What is Diode – and its function in circuits?

In this video, we tried to analyze Diode, an electronic component that’s commonly used in electronic circuits. But as it’s a vast concept, we only presented important points and the usage of the component. And also different types of Diodes such...

Davood Amanikor

1

Different Types of Capacitors - How to Test Them

This video is mainly about analyzing capacitors, from showing you different types of capacitors to troubleshooting and testing them. In other hand, you’ll get to see the function of capacitors in different types of circuits, how to test them and...

Ahmad Safari

4

Different Types of Crystals and How to Test them

This video is about how crystals work, their duty on circuits and last but not least, how to test them on laptop and desktop boards. Feel free to ask your questions and let us know what you think about this video 😊 Enjoy 🌸 ;)💚 This video is...

Hosein Asadolahi

3

Capacitor Failure in Repairing Graphic Card

We have a Graphic card that its image gets pixelated. After performing initial tests, we realized that the capacitors have failed. In the video below, you will see important tips in changing capacitors and how to test them. You’ll also realize...

Ahmad Safari

1

basic electronics in laptop repairing

It is a known fact that if someone wants to learn something -and anything- it would be best to learn it from the beginning and basics to intermediate and then at last to the advanced or professional levels. In this way he/ she would be a highly...

Hosein Asadolahi

6

How to Test Dual MOSFETs

There are some MOSFETs on some boards, similar to the picture below, which are so similar to single MOSFETs. In fact they are single High and Low MOSFETs that come in one package. How can you distinguish a single MOSFET from a Dual MOSFET before...

Ahmad Safari

2

How To Measure Drawn Amperage Of Systems

Sometimes a power supply or an adaptor has no power to boot up your system but you want to know how much current your system needs to switch ON?! In this kind of situation, you need to measure drawn current of the system using a multimeter. In...

Ahmad Safari

1

About Laptop Components Part 3 Power Mosfets 3

As a follow-up of the two previous parts on analyzing the obligations of Power MOSFETs in laptop power circuits, today you will learn about the obligations of High-side and Low-side MOSFETs. By watching this video, you will learn how complex...

Oktay Nikpey

0

About Laptop Components Part 2 Power Mosfets 2

In the previous video, I analyzed Power MOSFETs as one of the important components in laptops. In this part, I talk about the conduction mechanism of power MOSFETs and their obligations in laptop circuits. By watching this video, you will learn...

Oktay Nikpey

1

About Laptop Components Part 1 Power Mosfets 1

Near 30 components are used on laptop motherboards nowadays. I want to check these components in order of their importance. Since more than 70% of laptop common problems are related to power block, I decided to start from Power MOSFETs in this...

Oktay Nikpey

10

Dr-Bios Experience In Laptop Repairing Part 1 Detecting IC Pins

We have good news for you! From now on we are going to record videos on repairing experience of Dr-Bios Technical Team. These videos would include repairing different hardware components such as repairng laptop hardware. This is the first part...

Oktay Nikpey

0

How To Repair DAZHENG AC Adaptor Power Supply

Desktop power supply is a very important and useful tool for laptop and mobile phone repairmen and is used for applying voltage and providing required voltages. Today a power supply is brought to us for repairing which its voltage doesn't...

Oktay Nikpey

0

Basic Electronic Resistor-Part 3

The third video of resistor introduction is specifically for hardware repairmen, in which the resistors’ function and obligation are shown with laptop schematic (But even if you’re not a hardware repairman but you eagerly want to watch this video...

Oktay Nikpey

0

Basic Electronic Resistor-Part 2

This is the second video of basic electronics which is about analyzing resistors and resistances of their different types. In this video you'll see these concepts bellow: -performances of different resistors on the circuit -how to calculate 4 and...

Oktay Nikpey

1

Basic Electronics: Resistor Part 1

It is a known fact that if someone wants to learn something -and anything- it would be best to learn it from the beginning and basics to intermediate and then at last to the advanced or professional levels. In this way he/ she would be a highly...

Oktay Nikpey

5

How To Repair Toshiba Satellite C850 Power Mosfet

This article is about how to test and troubleshoot power circuit of laptop motherboard, and also the principles of accurate testing of mosfets with multimeter and datasheet. All important tips about replacing mosfets that you should consider, are...

Admin

1

Important Tips In Motherboard Repairing

There is a motherboard which turns on but with no display. In this video, you’ll see which voltages are important and you can find them on motherboard, and also how to work with oscilloscope in motherboard repairing. I’ll introduce PWM circuit...

Admin

2

Highlight Tutorial Videos

Navigation