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The most important part of your laptop's LCD screen assembly is your LCD screen inverter. Inside your LCD screen, the inverter is a tiny circuit board that provides power to your LCD's backlight gadget. The LCD screen inverter illuminates the LCD screen, which enables you to see images, illustrations, and videos on your screen. If your LCD screen inverter is not working correctly, you will see a dim or black LCD screen.
If you want to test your laptop LCD inverter and don't know how to do it, you are at the right place.
This blog will tell you how to test a laptop LCD screen inverter.
Your latest laptop for Circuit makers should be powered up if you are unable to get anything on display and only see the actual light lighting up; if you are unable to see much on the screen and if you look closely, you will be able to see a slight display or a little flash on the net. In this case, we suggest you turn off your laptop. Then, boot back up into the actual BIOS and try to get the BIOS to boot up on the screen. Then get a torch and flash it onto the vidscreen to see if you can see any display now.
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Sometimes, you don't see anything but only see a convenient and clean faint picture. You can see there is a little bit of a display there if you use the camcorder with the light on it. We recommend carefully removing all the actual bezels on the front. Just interfere around the show a little by removing the solid bezel. After going inside, look at the fundamental inverter part and the cable where the line goes outside. If there is no display, we must determine whether the laptop's inverter or backlight is gone.
A little lamp kit should be used as it has a customization kit with LED lights. Using any laptop, you can see the cable inside the inverter. You can bypass the inverter to make sure whether the inverter is broken. You can use little connectors and a 12-volt power source for lighting up the lamps. You can then plug out the inverter and plugin into your little device from where you go to your 12-volt power adapter and into the wall. If you cannot get a display, the lamps are wrong; however, if you get a show, it will be the actual inverter, which is terrible.
Then, go to the 12-volt power adapter in the wall. If your lamps illuminate, then your actual inverter is terrible. Then switch on the lamps, and you will see a very dim light from the natural light from the tubes. In this way, you can see the display. Now you know the true inverter is terrible, and the line is good.
Now, take a look at another screen. You can use a known good screen of another laptop to see whether you have a display there. Use multimeters for the actual inverter to know whether it has failed, or you can use a known suitable inverter. These are some of the different ways of testing LCD Screen inverters. We are telling you one of the quick and simple ways of testing LCD screen inverters.
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When you look at the switch, you can see the light coming on and notice that it is either not good or bright. From this, we know that the lamp is working, and the LCD is also good. It is a good sign that the actual light is going on. It is not good if the true light is not on the lamp.
The inverter gets its power from the motherboard. However, there is no light on the screen. It will be either a failed backlight lamp or a bad inverter.
Use a known good backlight lamp for testing.
1. unplug the screen backlight cable from the right side of the inverter.
2. Then connect a known good backlight lamp.
Then turn on your laptop.
1. If your test backlight turns on, the lamp inside the screen is terrible. In this case, replace the net and the backlight lamp, which is neither easy nor recommended.
2. If your test backlight doesn't turn on, then you most likely have an inverter failure. We recommend that you replace it and test the laptop again.
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Conclusion:
You can quickly test your laptop's LCD screen inverter using this quick and easy method. We hope this blog will be helpful for laptop users who don't know how to test their LCD screen inverters.
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