Laptop lcd inverter repair

Hi, Thanks a zillion for this article. I had a dim LCD screen laptop. By following some of the instructions I could zero in on the problem. I tested out the DC part of the inverter boar I was getting around 15V, but I tested the AC section of the board (the other end feeding the backlight) on a multi-meter and I did not get a reading.

Laptop Backlight and Inverter Repair.

Digital LCD screens are very complicated devices in their own right, composed of multiple components all working together to provide you with crystal-clear images and sharp graphics. Because the inverter board and backlight are linked so closely, diagnosing problems caused solely by the inverter board can be difficult. Just like fluorescent room lighting, they eventually burn out. Unlike room lighting, they are not made to be r. What is LED backlight on a laptop? Locate the cable connectors circled in the image.

Each end of the inverter connects to these connections.

Now carefully disconnect each cable. Unfasten the screw that is shown at the arrow in the image, then remove the faulty part. Talk to your technician and ask what he did. If he tried that already, you may try replacing the video cable. If replacing LCD , inverter and video cable will not help, apparently you need a new motherboard.

Looking For Great Deals? We Have Almost Everything on eBay. Get Top Products With Fast and Free Shipping on eBay. It works by turning a direct electrical current from the motherboard into an alternating current.

How to Fix an LCD Backlight Power Inverter. Using a Fujiplus FP-988D. In this instructible i will walk you through fixing a dead lcd back light power inverter using the parts you have. You can tell if you have a dead back light by first eliminating other possibilities. Check monitor on multiple computers.

I moved the inverter chip and the problem moved with it. These installation instructions have be made into easy to follow printable steps.

We have also create a video tutorial that shows you how to install your Dell Latitude D6LCD Display Inverter. The display is there, but very dark. If the laptop is equipped with an external monitor connector, we can easily check if the problem of having a black screen is caused by a faulty video card or GPU within the laptop or maybe the problem resides inside the LCD which is the inverter and CCFL bulb. The inverter cable brings the electrical power from the logic board (upper left side) to the inverter board in the display assembly and this board powers up the backlight bulb so you can see the video onscreen. Your problem is a lightning one and the inverter cable is often the culprit in this kind of failure.

This may be more cost-effective than having new components installed in an old monitor with a shorter lifespan. However, if you have a laptop or a relatively new device, purchase a replacement LCD display panel. Hire a professional to install it. Breakdown when under load.

Although is rare, I did came across one before. On top of the secondary winding I saw a very tiny spark while the LCD Monitor inverter was working. Remove the screws from the side of the LCD hinges.