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

Laptop is dead. How to troubleshoot.

posted in: Troubleshooting | 505

In this post I’ll explain how to troubleshoot a dead laptop and find the problem. The following troubleshooting tips are not model and brand specific. Let’s take a look at different failure scenarios. Example 1. The computer is absolutely dead.  … 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

1 2