06-10-2014 05:30 AM
My Y500 (one of the older models) has some weird display issues for some time now. When I try to adjust the screen angle, some horizontal green lines appear randomly on my screen. Some other parts also have vertical magenta lines. Then I have to try several angles until I find a position where the display doesn't show any problems. This happens almost every time when I open the display and turn it on. Sometimes it is less of a problem and sometimes more. If I don't move the laptop or the screen the problem does not show up. My drivers should all be up to date and I have Windows 8.1.
Thank you so much for your help!
(I can also make pictures if needed)
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06-10-2014 06:13 AM
It sounds like there's something wrong with the cable connecting the display to the motherboard. You might want to have a look at the service manual to see how you disassemble it, and then take it apart and make sure the cable isn't being pinched by anything. If it looks permanently damaged, try turning the laptop on with the screen detached from the case, and wiggling the wire to make sure it doesn't cause those lines again. If it is permanently damaged, the wire is probably permanently attached to the display, so you might need to get a new one. Hopefully it's under warranty.
06-10-2014 08:43 AM
Thank you for your response.
I looked at the screen and the wires and found that the cable to the screen was not in place (came out of the "plastic holder"). I put that into place but could not find much else.
I saw that the gold sticker at the back of the panel was not fully covered by the sticker of the cable (2-3 mm of the gold sticker is visible). Is that normal? Sorry that I forgot to take pictures :x
After I put it back together it definetly works better than before. The only thing I notice know is very little distortion when I move the display, but that fully goes away when I don't move it.
06-10-2014 05:44 PM
I suppose maybe that thing you were talking about with the stickers could be causing the distortion, but I really don't know, since I can't really visualize what you're talking about. I actually have a Y580, but I haven't taken it very far apart. I'm just going by what I've seen on other laptops I've worked on. But these stickers... are they supposed to make some sort of electrical connection? It doesn't seem like that would be very reliable, but if they weren't doing anything like that, I don't see how they could be that important. Maybe you could try to explain it a little better, please.
06-11-2014 06:13 AM - last edited on 06-11-2014 08:29 AM by andyP
06-11-2014 05:41 PM
From the looks of it, you can probably go ahead and peel that off to look under it if the distortion is that troublesome, as long as you are careful not to mess up the cable while you are doing so.
06-12-2014 07:46 AM - edited 06-12-2014 07:47 AM
if your talking about gold part at top then no thats only metalic holder it's painted in gold which it is most of the times and is not peal able if thats what you mean? If you peal that off it will no longer hold your end connector in-place anymore xD since that is holder for connector end to be in place.
06-12-2014 10:54 AM
Well anyway, maybe you could try taking the connector out and blowing inside the plug with compressed air or something, and then plug it back in again and see if it makes a difference.
06-18-2014 05:57 AM
I did not remove the cable because I don't think it's worth the risk (I don't know much about it ...).
The problem is almost gone just by opening the bezel and rearranging the cable so I can live with it.
Thanks for the help!
11-17-2014 06:05 PM
Here's some advice from someone who fixed this issue recently.
Disclaimer: For anyone thinking about attempting this repair, please keep in mind that you cannot remove the LVDS cable from your Y500 without removing the motherboard, palmrest, keyboard, hard drive, etc. Think twice about doing this repair yourself if you have not successfully fixed computer hardware before.