LCD Troubleshooting And Repair

Common Problems Faced by an LCD Screen – How to Diagnose and Fix Them

 
LCDs are fairly common nowadays and their popularity can be proven by the fact that in 2013 alone, around 74.1 million LCD TVs were sold in the Asia-Pacific region. LCD is a technology that is not only present in TVs and can also be found in our laptops, calculators and even digital wrist watches.

After using LCD devices for years or sometimes even months, you will notice some problems with the performance of your LCD devices. Sometimes, they just won’t start and sometimes the LCD screen becomes too dull to read the text. This is when you should be informed and capable enough to diagnose or troubleshoot the problem yourself and then repair it on your own. This article aims to provide you with the practical knowledge about LCD troubleshooting and repair.
 

Problem # 1 – LCD Power Light Turns On but the Screen Does Not Display any Image

If this is the problem that you are facing with your LCD then it’s quite obvious that the backlight of your LCD monitor has died. But how do you know for sure? The easiest way is to hold a bright flashlight at a sharp angle to the LCD screen and see if you are able to see the display. If you do see the picture on the screen, then you should order an LCD backlight online and replace the worn out backlight with a new one. A detailed step-by-step guide on replacing an LCD backlight can be found by clicking here.
 

Problem # 2 – LCD’s Power Light Doesn’t Turn On

The second problem discussed in our LCD troubleshooting and repair guide is when the power light on the LCD monitor isn’t working. That’s a sign that your LCD is dead but don’t make the mistake of throwing it away. If that is the case, then most probably your LCD power supply isn’t working or the capacitor has failed or leaked. Now, you don’t want to buy a new monitor when you can simply bring your dead LCD monitor back to life just by replacing power supply or capacitor (whichever is mucked up). First of all, you should check the capacitors to see whether they are leaked. If everything is alright with the capacitors, then the power supply is the culprit.
 

Problem # 3- Horizontal or Vertical Lines Appear on the LCD Screen

Now this isn’t something as common as the other problems discussed above but at the same time, it’s very frustrating nonetheless. If you are faced with this problem, then you should run the auto setup function on your display. Still, if the problem persists, remove the video plug and see whether any pins are bent or broken because these often lead to the appearance of horizontal and vertical lines.
If you want more information regarding LCD troubleshooting and repair, then you can visit our website for more details. We provide LCD troubleshooting and repair services to our clients and ensure that we meet and exceed their expectations.