I have an acer aspire 1800 and the screen has 2 large black bands (vertical) and some bands were the image is incorect and faded. I assume I need a replacement screen. Does anyone know whats happening? I keep reading about inverters etc. Just want to make sure its the LCD at fault before I buy a replacement.
The display shows fine through an external monitor so I dont think its the graphics card.
Any help would be appreciated.
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Re: acer LCD fault
According to your issue. It is definitely the issue from your LCD. Any issue from converter will cause the display flickering or given faulty color and resoulution. But here your LCD is still displayed as normal with some horizontal or vertical lines. Those signals showed that LCD is in poor condition and replace it will solve those issues. I am positive that LCD is at fault.
You are correct about the inverter, on laptops about 9 out of 10 issues with video may be caused by the inverter, however before you replace the inverter try checking for new driver updates for your video, if this fails you may try hooking up an externail monitor and see if that works ok, if it does then i would try to have the inverter replaced.
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To determine if you have a faulty LCD screen or a faulty video card, connect an external monitor to the laptop's video port, power up the external monitor first the the laptop. The video output should automatically switch to the external monitor. If you get a normal image then the video card is OK, and the fault is with the LCD screen.
If you still get a bad image, then the fault could be a faulty video card or video RAM. Most laptops use part of the main RAM module for video RAM, try reseating the RAM modules and or test the RAM modules. If the RAM is OK then the fault is the video card.
You could have a defective screen - follow this to determine the fault.
Connect an external monitor to your laptop and power it up, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight.
Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case. The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills. Check out www.lcdparts.net for parts, repair service and DIY info.
some times the data cable and the power cable to the LCD screen get loose due to handling or missuse/installation errors. so try to remove the cover just above your keybord.with a thin screw driver where u will see the small jacks for the LCD. remove and refix it and see. if it does not solve the problem, check ur battery condition. If the battery condition is ok, load a xp boot disk and reinstall the OS.
It's not a contrast / brightness issue, even at the lowest setting the screen would look normal and probably not the way you're seeing it now. It's likely that the inverter or backlight went out on the lcd. You could possibly turn them up the highest level, but it would still need to be serviced by Acer for it to work correctly.
It very well could be a easy fix, Usually the Ribbon which connects from the LCD screen to the Notebooks motherboard gets bent/torn/damaged by extensive CD movement.. A close look at the Ribbon, if reveals tears or any damages a new (10-15$) Ribbon Cable may very well be in order if not a new notebook itself.. :-)