Screen shows strange colors

posted in: Screen, Troubleshooting | 125

The screen started showing strange or wrong colors. What could be wrong? I’ve been asked this question many times and today I’m addressing the issue. In this post I explain some basic troubleshooting techniques in case if your screen started … Continued

How to test screen inverter

posted in: Screen, Troubleshooting | 260

In this post I explain how I test the inverter board in a laptop. The inverter failure is very similar to the backlight lamp failure. In both cases the screen gets very dark and the image becomes very faint, barely … Continued

LCD screen turned completely white

posted in: Screen | 369

What can you do if the laptop LCD screen turned completely white? From my experience I can tell that this problem may be related to the following: 1. Loose connection between the video cable and the LCD screen. 2. Defective … Continued

How to replace backlight lamp (CCFL)

posted in: Screen | 280

In this guide I will disassemble a laptop LCD screen in order to remove and replace the backlight lamp (CCFL). Replacing the backlight lamp is not an easy task even for experienced technicians. If you do something wrong you will … Continued

Troubleshooting backlight failure

posted in: Screen, Troubleshooting | 230

This laptop came for repair because of the LCD screen backlight failure. My customer complained that the laptop LCD screen is black but the laptop works with an external monitor. Here are my steps for troubleshooting this laptop with the … Continued

Repair LCD screen with water damage

posted in: Liquid spill, Screen | 396

Yesterday took apart and repaired my notebook LCD screen with water damage. The screen itself was working just fine but it had two different problems. – previous owner spilled water on the laptop. Somehow the water got inside the LCD … Continued

Display assembly diagram

posted in: Screen | 333

Here is a simple diagram that will help you to understand how a notebook display assembly works and how an image appears on the screen. I’m not an artist and I tried my best drawing this diagram, so if you … Continued

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