These are the tips you should follow. This is my solution regards about my laptop problem.You replaced the broken LCD screen in your laptop with a new screen but it’s not working.
Does this sound like your problem? Let’s find out what could be wrong and how you can fix it.
First of all, I assume that your new LCD screen is compatible withthe old one. Different screens require different video cables. Makesure you new screen is compatible with your laptop.
OK, let’s say you accidentally damaged the LCD screen in yourlaptop. A part of the screen still works fine but you cannot use itlike that so you decided to replace the screen yourself.
You did some research and purchased a compatible screen, installedit into the laptop, turned it on and… The new screen is not working!!!What could be wrong?
Before you start to panic, check all cable connections again. Checkconnection between the video cable, LCD screen and inverter board.Reconnect cables just in case.
Take a closer look at the connection between the video cable and LCDscreen. It’s possible you accidentally pulled the video cable from theconnector during the screen installation.
The video cable has to be seated properly, all the way down.
Also, on some older LCD screens there are very thin pins inside theconnector. Take a look inside the connector, make sure there are nodamaged (bent) pins.
You can straighten bent pins with a very small screwdriver but this procedure requires a lot of patience and concentration.
Fortunately, most newer LCDs have a different type of connector, without fragile pins inside.
OK, you have reseated all connectors and cannot see anything wrong but the new screen still is not working. What’s next?
Remove the new screen and connect the old one. If the old one worksproperly (except the damaged area) but the new one is dead, apparentlythe new screen is defective and has to be replaced.
Hopefully it has warranty.
Here’s another scenario. The new screen kinda works. You can see a very faint image but there is no backlight.
If that’s the case, disconnect the new screen from the inverterboard and plug in the old screen instead, as it shown on the picturebelow. If the backlight inside the old screen lights up, apparently thenew screen has defective backlight lamp and has to be replaced.
Good luck !!