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.
Laptop parts | Repair Man | 
December 26, 2008 3:18 pm
156 Responses to “LCD screen cable”
Pages: « 7 6 5 4 3 2 [1] Show All
Pages: « 7 6 5 4 3 2 [1] Show All
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 [...]