Hola Amigas!
I can understand your anger over my not coming up with any article for nearly 6 months now!
To compensate, in the next two blogs, I am gonna try to help you to understand to troubleshoot one of the most common issues in laptops these days i.e. of Display. [I thank Samiksha for the motivation for this blog!]
But before we deep dive into troubleshooting steps, lets try to understand the architecture of display in a common laptop.
This structure will also help you in bargaining with local laptop repairs mechanics as you can specifically ask them to tell you the issues and correspondingly you can weigh in your monitory options.
So lets rock and roll:
The basic structure of a laptop display is something like this:
As you can see, there are just 4 basic parts. Let's try to understand them in layman's terms:
#1: Video Cable is responsible for:
a. Carrying display signals from Motherboard (or video card) at point 1 to LCD screen at point 2
b. In most cases, it also supplying the necessary voltage to the FL Inverter board at point 3
Video cable typically costs somewhere about INR 500/- in e-com sites
#2: FL Inverter board is responsible for:
a. Converting low DC received at point 3 to high voltage AC at point 4.
i. This is then fed to the CCFL (backlight bulb)
If an issue exists at this component, when you turn on the laptop, the LCD screen (backlight bulb) will not light up. Nevertheless, you will be able to see a very dim image on the laptop screen.
This component is gonna cost you around INR 1000-1500 in e-com sites
#3: CCFL (backlight bulb):
When the backlight bulb lights up, you can see an images on the LCD screen. In most cases the backlight bulb is a part of the LCD screen and if it’s bad, the entire screen has to be replaced. By the way, some specialized repair shops can replace the backlight bulb itself.
Buying this is an expensive affair and you may have to shell out more than INR 5k+
#4:Lid close switch:
The lid close switch is a small button that locates close to the display hinges. On some newer models there is no button, because the switch is magnetic. You can set up your laptop to go to a hibernation mode or to a standby mode when the LCD is closed via power management software. These modes are triggered when the display is closed and the lid close switch is pressed down. If the LCD screen on your laptop will not light up when you open the display assembly, check the lid close switch is stuck inside (it might happen because the switch is dirty).
So, I tried to explain in simple terms about the display set-up of a common laptop. Hope this helps to bargain for prices next time you visit the repair shop.
Got queries, post them in the comments sections below.
El descanso es proximo!
Au Revoir :)
I can understand your anger over my not coming up with any article for nearly 6 months now!
To compensate, in the next two blogs, I am gonna try to help you to understand to troubleshoot one of the most common issues in laptops these days i.e. of Display. [I thank Samiksha for the motivation for this blog!]
But before we deep dive into troubleshooting steps, lets try to understand the architecture of display in a common laptop.
This structure will also help you in bargaining with local laptop repairs mechanics as you can specifically ask them to tell you the issues and correspondingly you can weigh in your monitory options.
So lets rock and roll:
The basic structure of a laptop display is something like this:
As you can see, there are just 4 basic parts. Let's try to understand them in layman's terms:
#1: Video Cable is responsible for:
a. Carrying display signals from Motherboard (or video card) at point 1 to LCD screen at point 2
b. In most cases, it also supplying the necessary voltage to the FL Inverter board at point 3
Video cable typically costs somewhere about INR 500/- in e-com sites
#2: FL Inverter board is responsible for:
a. Converting low DC received at point 3 to high voltage AC at point 4.
i. This is then fed to the CCFL (backlight bulb)
If an issue exists at this component, when you turn on the laptop, the LCD screen (backlight bulb) will not light up. Nevertheless, you will be able to see a very dim image on the laptop screen.
This component is gonna cost you around INR 1000-1500 in e-com sites
#3: CCFL (backlight bulb):
When the backlight bulb lights up, you can see an images on the LCD screen. In most cases the backlight bulb is a part of the LCD screen and if it’s bad, the entire screen has to be replaced. By the way, some specialized repair shops can replace the backlight bulb itself.
Buying this is an expensive affair and you may have to shell out more than INR 5k+
#4:Lid close switch:
The lid close switch is a small button that locates close to the display hinges. On some newer models there is no button, because the switch is magnetic. You can set up your laptop to go to a hibernation mode or to a standby mode when the LCD is closed via power management software. These modes are triggered when the display is closed and the lid close switch is pressed down. If the LCD screen on your laptop will not light up when you open the display assembly, check the lid close switch is stuck inside (it might happen because the switch is dirty).
So, I tried to explain in simple terms about the display set-up of a common laptop. Hope this helps to bargain for prices next time you visit the repair shop.
Got queries, post them in the comments sections below.
El descanso es proximo!
Au Revoir :)
