Hate to tell you this but it sounds like a backlight inverter problem. This was the piece you undoubtedly saw at the bottom of your monitor when you took it apart. It's a small chip that goes out sometimes, usually way before a monitor itself goes out. The old monitor might have been working just fine.
The part is about $20 on e-bay if you want to look it up and it is a relatively easy fix. Hope this helps.
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Plug in an external monitor and see if
display shows up on it. It can be any kind of monitor even the old big
monitors as long as it has a vga cable to connect to your computer's vga
port. If the display shows on the external monitor that proves your
video card is ok and your lcd screen is the issue. The video will show
on most systems when you reboot without you having to do anything. Some
will require you to hit the FN (Function key) + F1 thru F12. Hold down
the FN key then hit the correct key for displaying on the monitor (F1
F12). The correct key will normally have CRT/LCD on it or it will have
the icon of a display.
If is shows on the external monitor, then you would have to question if
the new screen and lcd inverter is bad. Just because they are new don't
mean they work. Are you sure you purchased the lcd screen and inverter
that is for your model?
Hi there, please restart your laptop when its booting press F8 key . You will find few option asking for selection. Select that by using up/down arrow key. Select " Last know good configuration" & press Enter. Next page asking for selecting operating system, for example: windows vista or Windows XP etc. Just select the operating system & press Enter again. ( Hope your laptop showing only one operating system ). Your laptop will start normally. After the if you seen the screen dark then press FN+Right arrow in key board(>). When you press FN + ( < ) or ( >) key that's time its working for brightness controlling for screen. Now if all well then fine other wise please let me know .
Another suggestion is run your Acer driver DVD for installing Display drivers. When finish restart your laptop and watch whats going. If no success then format the Operating system & reinstall again.
After these two things if the same things happened then straight forward format your OS and install it again. Because your OS corrupted by Virus.
Hi, ok friend must identify 2 things, the first thing is if the screen in black appears since it power on the equipment and changes are not obvious at the back of this one, of being like that this means that it can have faults to level of the card of video or of the LCD, now well, if it looks for a light source and at the back of the LCD to show the dark screens, it indicates that the FL Inverter this one damaged and must replace.
If you can hear the sound of Windows starting up, your blacklight probably died. If you can't hear the Windows start up sound, Windows may need to be re-installed. Most likely though, it's a faulty backlight.