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 27th, 2010 at 9:13 am
The LCD on my D620 is nothing but horizontal and vertical lines (a nice bright plaid pattern). External monitor works fine. Bios is up to date. I’ve plugged everything in and out. Any ideas? Computer repair guy says I need a whole new top (complete LCD, cable, bezel, inverter, cover etc.,…the easy way out), but I kind of doubt it. For one thing, it’s nice and bright. I’d like to test the LCD all by itself. Is there a way to do that without taking apart my D830? Should I buy a new cable/harness thingy?
August 18th, 2010 at 9:16 pm
bluesmap,
Did you check cabled on both ends of the inverter board? Maybe one of the ends loose.
August 18th, 2010 at 8:38 am
check lcd cable but still getting dim dark display. was working fine before took everything apart. what could be causing this issue? i havent swapped anything although im assuming something is not plugged in correctly. what can i check?
August 12th, 2010 at 11:33 pm
I have had some interesting reading materials on the subject: Connecting your laptop screen to your desktop.
Well its not imposible, but it cost as much or more then a new 24″ screen. It demands a converter and power supply.
So just wanted to say it so now you know.
August 11th, 2010 at 10:20 am
André aka Amish,
All screen cables are different.
I don’t think it’s possible.
August 11th, 2010 at 3:55 am
Hi there.
i only need to know what the cables are used for.. any help there???
I have a problem, well actually its no problem, i was more wondering. The Screen cable, is it a standar? (my brother says so and he works IT) and if its a standard why cant i find any shcematics over the cables. I wanna plug a laptop screen to a PC, meaning converting it to vga or dvi cable.. It must be possible..
Thanx
Amish
July 22nd, 2010 at 11:53 pm
SK,
Yes, it’s possible but I don’t know if the cable is bad in your case. I cannot tell without testing.
Did you buy the same screen? You have to be very careful when buying parts on an IBM/Lenovo laptops. They don’t like “compatible” replacements.
I would suggest replacing the screen with exactly same screen. Maybe your new screen just not compatible.
July 22nd, 2010 at 11:02 pm
Vasil,
Do you get any image on the screen at all?
Can you get image on the external monitor?
If the laptop works fine with the external monitor, but the internal screen remains lightly black all the time, check connection between the video cable and LCD screen.
It’s likely the cable got disconnected from the screen. I’ve seen it happening with Toshiba Satellite P200/P205 before.
Reconnecting the cable on the back of the screen might fix your problem.
July 21st, 2010 at 9:49 pm
Hi there,
I had a cracked LCD screen, so I bought a new one off eBay.
During the install, I might touch something around and screen doesn’t work. External monitor works fine.
First, I thought the inverter went bad since I could see the screen for about a second when I connect and disconnect the cable to the inverter. So, I replaced the inverter but no luck.
At the time, nothing showed up on the screen, but somehow I got it to show very dim screen. It’s the same symptom as a bad inverter, very dark screeen where I can barely see things. But I know it’s there. Except, I don’t even have a second where the screen works properly even at the booting start.
Now, I found that the video cable has some broken plastic part at the end. I don’t know if it causes the problem, but my question is this.
Could the bad video cable cause the dim(very dark) screen symptom?
Or, do you think it’s some other problem such as lid position sensor? I’m using Thinkpad T61 14.1″.
July 13th, 2010 at 12:02 pm
Hi there,
i have a problem with my Toshiba Satellite P200 The LCD Screen is lightly black(dark) when i turn the screen up and down. Do you know what can be???….is this only the LCD cable problem? wheren can i buy this part?
Could you please help me??
Thank you so much
June 13th, 2010 at 12:32 am
Hi there,
i have a problem with my Macbook Pro early 2008. The LCD Screen is lightly black(dark) when i turn the screen up and down. Do you know what can be???….is this only the LCD cable problem? wheren can i buy this part?
Could you please help me??
Thank you so much