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 with the old one. Different screens require different video cables. Make sure you new screen is compatible with your laptop.
OK, let’s say you accidentally damaged the LCD screen in your laptop. A part of the screen still works fine but you cannot use it like that so you decided to replace the screen yourself. You can find LCD replacement instructions in service manuals or this DIY site.
You did some research and purchased a compatible screen, installed it 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. Check connection 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 LCD screen. It’s possible you accidentally pulled the video cable from the connector 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 the connector. Take a look inside the connector, make sure there are no damaged (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 works properly (except the damaged area) but the new one is dead, apparently the 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 inverter board and plug in the old screen instead, as it shown on the picture below. If the backlight inside the old screen lights up, apparently the new screen has defective backlight lamp and has to be replaced.
Related post: Laptop has bad video on the LCD screen. What is wrong?
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August 26th, 2009 at 10:59 pm
Max,
Most likely not. These are two different models.
August 22nd, 2009 at 8:49 am
I have two broken laptops: Packard Bell with dead motherboard and Dell with screen that shows faint image. I’ve tried to fix Dell by replacing screen and inverter bought on eBay, but it did not help. I wonder if I can take the screen, inverter and cable from Packard Bell and use them all in Dell?
Thank you in advance
August 20th, 2009 at 12:36 pm
I am with purple vertical stripes on my screen. Follow the link for the problem with images, I believe to be the screen, but told me to be the reverse lcd or flat cable.
August 19th, 2009 at 4:35 pm
I replaced my lcd screen in my Dell Inspiron 8600, but the screen cycles through colors of red, blue, green, and white. When I connect to an external lcd it shows a blue screen and reports that a hardware error has occurred.
August 1st, 2009 at 10:27 pm
hello sir i have a problem with my laptop lenovo y500
screen.
a line is display on the screen but with whole sc reen.
many time its shakes and disappeaer that line.
July 31st, 2009 at 2:14 am
Hi,
I have a Fujitsu Siemens Amilo Pro V2010 which shows a dark screen with a faint image. I have tried the screen attached to another (working) V2010 and it works. I then checked the broken V2010 with an external monitor and that works as well. Is it possible that the video chip could be damaged in a way to make it look like a backlight/inverter problem?
Yours in puzzlement,
Andy
July 22nd, 2009 at 9:16 am
Ive installed my new screen ,works only in safe mode..need help!!!
June 11th, 2009 at 5:05 pm
which models of ldc screen can I use for a hitachi old notebook model pc7np3-gbc27k110, 12.1″
How to know what to bay? Is there any site to check it in the Internet
THanks a lot
hope you are able to give me some helf, I would be very pleased…
June 6th, 2009 at 3:39 pm
Erich hochstuhl,
Check the memory. Make sure RAM modules are seated correctly.
Check the CPU. Make sure the CPU is seated correctly and the socket is locked.
June 2nd, 2009 at 3:19 pm
I had a dc jack replaced on a laptop. I shipped the MB when it cam back I put it back together. the HDD spins, HDD light goes on then off but nothing shows on the screen. I checked all the cable several times and disassebled the laptop at least 4 times. I don’t hear the fan spinning or cd rom.