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”
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Pages: « 7 6 5 [4] 3 2 1 » Show All
October 11th, 2010 at 11:29 pm
thanx 4 ur prompt reply…
Failed memory module is the problem what you suggested…
Actualy there is only one RAM Of 256 MB ddr_1 is installed in it. If changing it with new one will work. Wil lcd display function after changing RAM? How about if i replace it by 1gb RAM,i hv celeron procesor wil it support.?
October 11th, 2010 at 10:47 pm
alok ghildiyal,
Could be memory failure. I’ve seen failed memory module causing “missing system32 file” error.
I guess the memory module started failing and you were getting system 32 errors. Now it failed completely and the laptop will not boot.
Do you have two memory modules installed in the laptop? Try removing them one by one. It’s unlikely that both modules failed at the same time. When you remove the bad module the laptop might start properly.
October 11th, 2010 at 5:54 pm
Joanne,
It’s likely you have a problem with the backlight lamp inside the screen. When you unplug/plug the cable, you re-apply voltage to the backlight lamp and it starts again for a while.
I think you’ll have to replace the screen. Of course, I could be wrong but to me your description sounds like the backlight lamp failure (I assume it’s not inverter problem).
October 11th, 2010 at 5:07 am
hi,
i have a problem regarding my toshiba l30 satellite lappie….
Actualy 10days ago my windows crashed. Initially it showed instal system32 file which ws mising or corupt. N it prompt me to boot bt i ignored and didnt reinstal or repair windows. Few day later wen i tried to reboot , the LCD ws showing nthng. Though fan ws working bt lcd ws showing no lite nd no display.
Later i disassemble lappie and try to fix problem by reconnecting video cable from mainboard to lcd.bt it doesnt work too , bt what i saw the video wires inside a black tape many wires were found without insulation,nw i dnt knw where it is like that or these wires hv insulation. Well stil lcd of my lappie isn’t working m cmpletely freaked at it, pls advice me so that it cud b fixed. Thnx
October 10th, 2010 at 4:58 am
Dear Repair man
HP Presario V5000. Dim to dark screen. Works with external monitor. Used to light up on reboot. Now, goes dark on a whim.
Taken me a long time and 3 inverters to find that there is a short or something w/video cable that goes into the inverter (left hand side of inverter if facing). When screen goes dark, I pull it out and re-insert and screen is bright again. Foes out- I repeat. It doesn’t seem to be in the wire, but the little white thingy bob that you insert. Do I have to replace the whole thing?? Thanks so much for any help or recommendation.
October 5th, 2010 at 2:00 pm
Dan,
I would try reseating the video cable connections first. Maybe it’s just loose connecting between the cable and motherboard.
October 5th, 2010 at 8:06 am
Sara,
First of all, this is definitely not the inverter board related failure. The LCD screen still has light, so the inverter works properly.
Most likely this is LCD screen failure but there is a slight chance of the video cable failure.
Here’s how you can narrow down the problem.
You’ll have to open up the display panel and try moving the video cable while the laptop is turned on. When you move the cable do not touch the LCD screen.
1. If moving the cable affects video on the screen and changes image somehow, probably your problem is related to the video cable. Try reconnecting the cable first and if it doesn’t help, replace the cable.
2. If moving the cable doesn’t affect image on the screen at all, probably this is LCD screen failure. In this case you’ll have to replace the screen.
September 21st, 2010 at 8:56 am
I have an Acer 2002WLCI laptop and just getting a white screen display. External video works fine. Think the issue is with the video cable as when I press on the connector (the one connecting to the motherboard) the image sometimes comes back, but cannot find a replacement cable anywhere.
Can these be repaired, or is there any website or ressource that would have compatible cables listed anywhere? I find it hard to believe that a different video cable would be used for each laptop model. Most companies usually use the same hardware parts for different models, to make things cost-efficient, naturally.
September 9th, 2010 at 5:01 pm
I dropped my laptop a year ago and 2 weeks later a green line showed up across the top of the screen. As time went on, more and more started to show up. Now, it’s shaking so bad it looks like it’s going through an earth quake with 7 lines going across the top and one red one on the bottom. It also does this blue and yellow haze flash starting from the bottom to the top of my screen if it starts to overheat. My friend told me it was either the inverter or the cable. I just replaced the inverter with what little money I had and it didn’t change a thing. My question is before I put more money into this, I want to know for sure what the solution is may it be the cable or what. Please help!!
September 7th, 2010 at 7:00 am
RJB,
They quoted you the entire LCD assembly because it doesn’t cost much more than a single LCD screen and probably they had a pulled assembly in stock. Also, when you replace the whole assembly, it’s safe.
Most likely it’s either LCD screen or video cable failure. You cannot tell without testing the laptop with another known good screen or cable.
Nope. You’ll have to disassemble the laptop and remove the screen.
You have 50% chance it will fix your problem.
By the way, have you tried reseating the video cable connector on the back of the screen?
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
May 17th, 2010 at 8:56 am
Hi, i have a compaq laptop and i recently dropped it and cracked the screen on it. There is no way of seeing anything on the screen once i turn it on, i can jus see the backlight thru cracks on the screen, screen i basically black from all of the ink. I just purchased a VGA cable so i can use my hdtv as an external monitor. The problem is when i hook the cable up to the tv and the laptop, the tv is telling me that there is no signal. Can someone please give me advice on what to do?
April 25th, 2010 at 2:15 am
Hi I notice one more thing on different Nvidia drivers screen goes off on the battery and power cord every time i go to NVidia control panel and go to TAB ”Adjust image settings with preview” (Nvidia spinning logo in 3d) Like problem with 3d acceleration?? 2d works ok.
Right now i have default Nvidia drivers that comes with vista windows update and Logo TAB works OK and movie acceleration is OK but cant run any 3d game, its exiting to the desktop, but screen wont go blank. That isnt driver problem because before that happened i was updating Vga in every new release from Laptop2go site.
Thanks
April 24th, 2010 at 6:06 am
Hi , I have this odd problem with my Laptop ( Gateway P-6860FX)
After starting up fresh copy of windows everything works OK but after Instaling NVidia drivers screen after some time goes blank (no sound hdd working lite bit longer but goes off to)And its sometimes wihite, black and even light blue.. Nothing works, external monitor wont work either. But if I startup system with external monitor connected it works no problem, Laptop screen and external monitor, if I disconnect monitor, laptop goes blank again and nothing helps it freezes.And thats happening usually when i try startup game or open Nvidia control panel sometimes right after logon screen, but if external monitor is connected works perfect???
Safe mode works perfect too, on battery i can manage to run the game so I ordered yesterday new power supply, but today it happend on my battery too… but on battery it almost works ok.
I checked monitor connection, instal every posible vga driver reinstall windows few times xp vista 7 bios update nothing helps, It worked two years no problem, that happened when i was playing game screen start flickering, and after restart problem with blank screen occurred
Please help!! give me any Idea what could be wrong. I think its vga problem and if it is its very odd because it works perfect with additinal monitor???
April 23rd, 2010 at 12:56 pm
Daniel,
That’s probably normal. You see just a white screen because the backlight lamp is working but there is no data signal coming from the motherboard.
On some laptops, the LCD screen turns completely white as soon as you disconnect the video cable from the screen.
I guess your brother was able to see picture right after he dropped the laptop, but after you replaced the screen there is no picture on both (new and old cracked screen. Is my assumption correct?
There is a chance that you damaged the LCD cable while disconnecting it from the cracked screen. Did you pull by the wires? I guess you can try replacing the cable next.
If you using a known good LCD screen and video cable, but the screen is still white, it’s either bad connection between the cable and motherboard/LCD or motherboard failure.