Laptop Repairing Articles

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!...

Basic Electronic

First chapter includes: Static electricity and its history Coulomb's law Categorizing objects Current electricity

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 ...

How To Clear ME Region Version 11

We have introduced several ways to clear ME Region in previous articles. Last on and the easiest way was to use Intel TXE/ME Injector software. But many members complained about having trouble with version 11..

How To Repair Laptop Charger-Part-2

these concepts are shown in the video: function of diode bridges and AC circuits and convertors Introduction of role and function of diode bridge on switching power circuit How to test diode bridges in laptop adaptor

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download bios bin files laptop & desktop

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download boardview laptop & desktop files

download schematic laptop & desktop files