LCD screen cable
A laptop LCD cable also known as video cable, display cable or screen cable. This cable transfers data signal from the motherboard and video card to the LCD screen. Also, most video cables supply high voltage DC power to the screen inverter.
On the picture you can see a typical laptop video cable. The cable has three ends with three connectors. One end plugs into the connector on the back of the LCD screen, the second end plugs into the inverter board, the third end plugs into the connector on the motherboard or video card.
The top part of the cable runs inside the laptop display panel between the LCD screen and display cover.
The bottom part of the cable could be found either under the keyboard or keyboard bezel.
In order to remove and replace the LCD cable, it will be necessary to disassemble the whole laptop.
LCD CABLE RELATED PROBLEMS
1. The image on the screen appears normal until you move the display up or down. When you move the display, the images on the entire screen starts to flicker, disappear or change collors. As soon as you stop moving the display, the image gets back to normal.
2. The LCD screen lights up but there is no image at all. The entire screen is blank. An external monitor connected to the laptop VGA port works fine, there is no problems with the external video output at all.
3. Image on the entire LCD screen is garbled. An external monitor works fine.
In many cases the video cable failures are very similar to the LCD screen failures.
August 7th, 2009 at 10:44 pm
Saw Daniel,
Are you sure the LCD is blank? Take a closer look. Can you see a very faint image at all? If there is no image, can you see the backight?
It tells me that most likely the video card and motherboard work properly.
If the LCD look completely dead and it doesn’t change color when you start the laptop, it’s possible that the video cable is not making good connection with the motherboard. Try reconnecting the cable.
August 6th, 2009 at 9:27 pm
Dear Repair Man,
The entire LCD screen is blank. An external monitor connected to the laptop VGA port works fine, there is no problems with the external video output at all.
So, what problem with my laptop. Please give me your value advice.
Regards,
Daniel
July 26th, 2009 at 9:09 am
Dear Repair Man,
Thanks a bundle for your valued advice
I can’t reproduce the error by pushing the left and right corners, but since my screen has a line of dead pixels (happened approximately one and a half year ago), I do not mind changing it regardless.
Just out of curiousity: I originally attributed the problem to the cable because I envisaged some kind of mechanical event tearing at the cable when moving the lid up and down. Do you have any idea why a bad screen is affected by such movement? It works perfectly if kept in the same position, but I really do not know how these screens work and what might affect their behavior.
Anyway, thanks for putting up an awesome site. I’ve really learned a lot about laptops the last days, and there is nothing so fun as becoming adventurous with a screwdriver
Best,
Petter
July 25th, 2009 at 9:25 pm
Peter,
I think your problem is related to the LCD screen.
When you have defective cable or connection issue, it usually affect video on the entire screen.
Can you reproduce the problem without moving the display up and down?
Carefully move the left and right corners of the screen to opposite directions. Do not torque too much or you can crack the LCD. Can you distort the image doing that? If yes, most likely you have a bad screen.
July 25th, 2009 at 1:17 pm
Hi everyone,
I have an Asus W5Fm (2P060C) laptop, and recently, the picture has tended to become distorted after I move the screen up or down. The garbled area covers about 4/5 of the screen area, and the area which is good is the most leftmost (This part always operates normally).
The happens more or less every time I open or close the laptop. Generally, I have been able to adjust it back and forth for maybe a minute and I find a position where the display returns. If I don’t close or adjust the lid, then the display works flawlessly (and has done so for more than a week).
I have no experience fixing laptops, but I’m guessing either the LCD cable is loose or damaged, as the problem comes with closing and opening the lid and since it operates normally once “re-adjusted”. Is this a reasonable assessment or should I consider if the LCD screen might be damaged? I thought I’d get adventurous and try to change the cable myself, but is there any way to distinguish between a broken lcd cable and just a loosely connected one?
Thanks in advance for all advice.
Best regards,
Petter
July 16th, 2009 at 10:12 pm
abdul,
If the screen is broken you cannot repair it. The screen has to be replaced.
July 15th, 2009 at 11:57 am
my screen was damage, how would i repair it
June 9th, 2009 at 6:43 am
i have lg xnote rd 410, the problem is my screen is jumping up
. At first it stops jumping after 10-15 minutes working. But now it goes on jumping. Don know what to do.
in a regular interval.
Now i cannot even look at the screen. Its very irritating.
Even though i dont make any rough use.
Pleeeeeeease help me.
Thanks in advance.
June 6th, 2009 at 12:18 pm
Steven,
Yes, LCD cables are laptop/screen specific. I would go with the exact replacement or at least contact the seller and make sure the new cable is compatible with your laptop and screen.
June 4th, 2009 at 7:05 am
Hi just wondering are the LCD cables specif for each model. Would you recommend a cable with the exact model number. As im uk based and finding it very difficult in finding an LCD cable
June 2nd, 2009 at 6:09 am
THanks for your response. I’ve tried on an external screen and that works fine. I’ll try replacing the cable and get back to you. Thanks for the link
June 1st, 2009 at 8:41 pm
Steven,
First of all, I would suggest testing the laptop with an external monitor to make sure that external video works fine even though internal video gets garbled. If both screens, internal and external are garbled, you have a problem with the video card.
I don’t think that the cable is loose. I think it’s either bad cable or faulty LCD screen. If you have to guess, I would try replacing the cable first.
Here’s an example of taking apart a Compaq Presario F700 notebook. The guide could fit your laptop too.
June 1st, 2009 at 3:01 pm
Hi I have a problem with my Compaq Presario C700 laptopn screen. The screen displays the image garbled. When I adjust the screen sometimes the image is displayed, Usually about 30 degrees. Do you think the LCD cable needs replacing or could it just be loose. Are there certain tests I can run?
My warranty’s also run out and got quoted practically the cost of the laptop to repair it. If its not a difficult job I dont mind doing it myself as I have experience with PC’s. Any help will be appreciated
Thanks
May 25th, 2009 at 5:53 pm
I cant find one of those cables any where. I need one bad my screen is half green i know that it isnt the connection but when i get my part i will know how to fix it.
May 8th, 2009 at 8:20 am
I had a problem with the cable in my HP Pavilion laptop. Here’s how I found it.
The image on the screen was goin out when I was moving the display. I though it’s a bad screen. So I desiced to open up the display panel and check the connections. I did so and found out that the image disappers when I move the video cable, not the screen itself. First I tried reconneting the cable without any luck. Finally, I purchased a new cable and replaced it. Now the screen works as new.
February 24th, 2009 at 10:27 am
Mary,
I would try reconnecting the cable first. Maybe it’s just a loose connection.
Also, that could be related to the LCD screen, not the cable.
February 24th, 2009 at 10:20 am
Hi Mark,
Thanks that does help. I am having the same problem with my satellite M40 so I will try replacing the cable first.
Mary
February 3rd, 2009 at 8:47 pm
Here’s something you should know. I have a new Toshiba Satellite M305 laptop and when I move the display, the image on the screen starts jumping up and down. When I stop moving the display the image as normal, no problem at all. I though I have a bad screen but when I brough my laptop to an authorized service center, they said it’s a known problem wiht Satellites M305 and it happens because of defective LCD cable. They replaced the LCD cable and now it works fine. There was nothig wrong with the screen.
I hope it helps people with Satellite M305 laptops.
January 15th, 2009 at 12:39 pm
[...] from the screen inverter board which receives low voltage DC power from the motherboard via the LCD screen cable as it shown on the picture [...]
January 14th, 2009 at 11:48 pm
[...] board. One side of the inverter board connects to the backlight lamp and another side to the video cable (LCD screen [...]