How to replace keyboard on Dell Latitude C840

posted in: 4. Dell | 8

In this tutorial I show how to remove and replace the keyboard on a Dell Latitude C840 laptop.

This is a few years old computer but I still like it and use every day.

The removal and replacement procedure is pretty much straightforward and shouldn’t take more more than 15 minutes.

Turn off the laptop, unplug the power adapter and remove the battery.

On the bottom you’ll find four screws with a letter “K” witch means keyboard. Remove all four screws.

Remove screws from bottom

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How to open Dell battery

posted in: 4. Dell | 16

Take apart Dell laptop battery

Here’s how I was able to open the battery from my Dell. I had to take it apart because the locking mechanism was broken. I decided to fix it by using the locking mechanism from another similar dead Dell battery.
I wasn’t sure if I can open the battery because it looked sealed.

To my surprise, it wasn’t difficult but you have to be very careful. If something goes wrong you can (and most likely will) destroy the battery or will not be able to assemble it back together. Proceed on your own risk.

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How to upgrade memory in Dell Latitude D610

posted in: 4. Dell | 190

Upgrade memory Dell Latitude D610

Dell Latitude D610 laptop has two memory slots available for upgrades.

This model can take up to 2GB RAM total, so you can install up to 1GB module in each slot.

You should use PC2-4200 DDR2-533 SODIMM RAM.

Your computer will work in dual channel mode (recommended) if you install two identical memory modules. In my case, I’m going to install two 1GB PC2-4200 modules.

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Replacing broken hinges on Dell Latitude C640 C540

posted in: 4. Dell | 58

Dell Latitude C540 C640 broken hinges

In the following guide I will explain how to replace broken display hinges on Dell Latitude C640 and Latitude C540 series laptops. Replacing and removing hinges is not a difficult task if you are careful and pay attention to details. I’m not sure if you can use same hinges for both models but the following removal and replacement instructions should be the same for both.
1. Find new replacement hinges.
2. Follow the disassembly instructions below.

Before you start, remove the battery.

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Replacing screen and inverter on Dell display

posted in: 4. Dell | 27

This guide explains how you can remove and replace the LCD screen, video cable and inverter board on a Dell display.

These instructions should work for many different Dell models.

Example 1. The inverter board is located under the LCD panel (not common).

In this example the display panel has been removed from the rest of the laptop case.

In most cases it’s not necessary to remove the display.

Dell Laptop Display

Remove three rubber screw seals on the top and two plastic screw seals on the bottom of the display bezel.

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