laptop motherboard repairing tutorials articles

Monitor Repairing- Part 1

Since after fully analyzing Adaptors and repairing different types of them, we decided to analyze Monitors, in this video, you will see different components of the screens and also get familiar with several types of them such as laptop and monitor LEDs, LCDs.....

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...

Troubleshooting Short Circuit Of 19V

In this video, we have a motherboard that’s turned OFF completely and schematic and boardview are not available for it...

Overheating IO & Detecting the Problem

There is a Lenovo Z50-70 laptop which turns ON automatically by the time of plugging in the adaptor. And IO IC overheats...

Water Spilling Problem LA-5893P

There are some videos about water spilling problem but this one is a little different. Because it destroyed circuit texture on PCB and the damaged resistors can hardly be found!...

How To Repair RAM Circuit Problems

Motherboard can be switched ON but there is no display, and after checking voltage, we realized that all the voltages are present except RAM and CPU_CORE circuits’ voltages. And then we checked ohm, and realized that there is no short circuit...

Everything About USB 2.0 Port

USB which is Universal Serial Bus is developed by a group of leading companies in the field of computer and electronic industries. The port was registered as a standard in 1990 and is one of the most commonly used ports, so today, every laptop or computer has ...

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

How To Diagnose Speakers-Amplifier And Audio IC Of Laptops

There are lots of videos related to audio problems of laptops and we have posted several of them in the website as well, but this time the technical team of is decided to capture a video and fully analyze audio related issues...

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