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Aspire 5634WLMi - [Problem]Black images cause green flickering dots

post #1 of 8
Thread Starter 
I have an Acer Aspire 5634WLMi with 2 years. Got a problem on the monitor (15.4-inch LCD CrystalBite).
It slowly started a year ago (at that time still had warranty but underestimated the problem and now it expired). In all the black images(movies, photos) began to appear some green fluorescent dots that looks like they are living (in English I think is called flickering spots, jaggies?!) which then disappear and come back. I did not care at first because both appeared to disappear. Over time there have appeared more, followed by purple dots now. These purple dots are never in black image but sometimes they are the shadow of the black image. But in videos with very dark black only come green dots (always flickering). In all the other colors there is no problem, for example I am writing this in Word and the blue and white of this image is not green. It is however in my opinion a little blurry, I do not know. The letters are black (with a slight green Halo) but it seems that they aren’t standing still and shake a little. The most strange is that on the desktop there is a pattern of green dots on the bottom left and a purple on the upper corner that are often there but sometimes also move around. In fact there was not so long ago a time when I got a perfect image. I began to think that the laptop went to very warm, open a part, cleaned the fan and reduce the processor speed by changing the temperature of the device. After a while it disappeared. But this improvement lasted only 1 day. Then it began all over again. I have also tried to connect the computer to another monitor and had a perfect image, so it seems that it is not the graphics. On the Internet I found many of these reports that the cable that goes from the graphicscard to the monitor is damaged and that a simple substitution leads to full restoration of the notebook. Anyway before attempting to open the laptop (I've been watching some videos of how to do) like to have another opinion from someone who realizes this. I already took him ah repair but wanted 250 euro to replace the monitor with dead pixels (which I think is wrong they are not all dead, and until very squiggly and alternate location). For 250euros rather buy a new though economically not good for me. When the computer has a completely black image is all green. For example when the screensaver comes with the ball moving from one place to another.
If there are more questions I am happy to clear them ... was good to resolve this because I have to study images on the computer and so it is completely impossible.

Thank you very much, I appreciate your help.
post #2 of 8
Replacing a notebook LCD is not so hard. You can perform it yourself for about €150 (new screen I believe).

You can also try replacing the cable for a start, also not so hard to do once the LCD is off. There are plenty of guides out there for these procedures.

cheers ...
post #3 of 8
Thread Starter 
thank you for the answer

but now you awakened my curiosity...i saw guides to replace the lcd, but i didnt see a guide to replace the cable. I supose the cable comes from the inside of the laptop into the lcd, how do i get the part inside the laptop if I only open the monitor case? Is that really possible? Do you happen to know a guide with cable substitution? And isn't the cable micro-welded so that it is impossible for normal people to reatach it?

Well lots of questions....

last but not the least; the pc has 2 years, what do you think is it worth it to substitute a lcd costing 100euros or better get a new computer? And how do I know the new LCD is good quality?

thank you very much!
post #4 of 8
The LCD cable connector to the main board can be accessed by removing the power bezel at the top of the comp. It is just unplugging and plugging.

You alone can decide if it is worth to replace the LCD or save the money toward a new notebook. As far as used/refurbished/new LCDs replacement, they are just as good as the one you have if the warranty period is good. Part number matching is what you are paying attention to.

cheers ...
post #5 of 8
Thread Starter 
hey

first thanks a lot for taking the time to help me; but i still have a problem...what is the power bezel? and is the information your giving me generic or actually specific for my computer?

here they say i have to remove everything?!

http://www.laptopparts101.com/lcd-screen-video-cable/


thank you!
post #6 of 8
http://www.notebookforums.com/thread229865.html

Check out this thread for some service guide to your model or something similar to it. This will assist you in getting the LCD connector on the main board side. Some models have the connector under the power bezel, some have the connector underneath the keyboard. Good lucks.

cheers ...
post #7 of 8
Thread Starter 
thank you very much my friend, i will try that with the cable this weekend..

in the meanwhile, i suppose one donates credits to the helping ones...i have no idea how much and what you can do with them but im giving you some!

take care and as soon as I've solved this I will say something
post #8 of 8
Very generous of you We are here to exchange information. Good lucks.

cheers ...
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