Steps to remove and replace DC jack soldered to motherboard

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Steps to remove and replace DC jack soldered to motherboard.

Soldered DC jacks are very common these days. A wide variety of laptop motherboards have the DC jacks built-in and it is not very convenient for repair.

In this post I explain the steps I go through during the process of removing and replacing a regular DC jack soldered to a regular laptop motherboard. A full description of the equipment and supplies shown in this guide available here.

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Replace the keyboard without replacing the top case

posted in: Miscellaneous Tips | 6
Replacing only keyboard without full top case assembly.

Today I show how you can replace only the keyboard without replacing the full laptop top case even though the keyboard is not removable. This is a DIY hack so proceed at your own risk but I guess you have nothing to lose anyway.

You will need a cheap disposable soldering iron as we are going to melt some plastic. A $3.99 iron from Harbor Freight will work just fine for that. Prepare to work in a well ventilated area because it’s going to stink.

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Laptop does not start. Is it bad power jack or motherboard?

posted in: Miscellaneous Tips | 447

Let’s say your laptop does not start at all. You plug in the power adapter and press on the power button, but the computer will not react. It’s dead and the power or battery charge LED will not light up.

What could be wrong? Is it bad power jack or the motherboard is dead?

Laptop top cover removed

By the way, the power jack (DC-IN jack) is the power socket on the side or back of your computer where you plug the AC/DC power adapter.

I’ll explain how to perform basic troubleshooting and find out what is wrong. This is only for experienced people, who know how to disassemble laptops.

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How to apply thermal grease on processor

posted in: Miscellaneous Tips | 66

This guide explains how to apply new thermal grease on a laptop processor (CPU).

Thermal grease (thermal compound or paste) has to be applied on the top of the processor before you install the heat sink. Thermal grease helps to conduct heat more efficiently.

In some laptops you can remove the heat sink without removing the CPU fan. In my case, I had to remove the fan first.

Remove cooling fan

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