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Monitor is dark but the laptop is working, - Acer Aspire 3680 Laptop

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Try attaching an external monitor to the laptop & see if you could get any display on it. If this is successful, then you might have either a faulty LCD cable or screen inverter board.
The LCD cable transfers data signal from the motherboard & video card to the LCD screen. It also supplies high voltage DC power to the screen inverter board. The screen inverter board works as a power supply for the backlight lamp mounted inside the LCD screen. It converts low voltage DC power to high voltage AC power needed for the backlight lamp.

Posted on Sep 07, 2010

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2 Answers

Why is there no display?


hi

can you plug in another monitor to the video plug on the side of your laptop?

if the monitor works but your laptop screen stays dark your laptop screen needs to be replaced .

If the monitor is also dark then the LCD screen is ok but the inverter needs to be replaced
25717570-m35oz4jvdfvvmght4a51n0jl-5-1.jpg lcd connect to laptop
25717570-m35oz4jvdfvvmght4a51n0jl-5-3.jpginverter
25717570-m35oz4jvdfvvmght4a51n0jl-5-10.jpglcd screen replacement
cheers

May 28, 2015 | Toshiba Computers & Internet

1 Answer

Why is my laptop screen is blank?


is there a dark display when you expose your laptop's monitor to light ? ... if yes check out contrast and brightness buttons ,,, if didn't work the main problem could with the monitor's inverter or the monitor leds ... must be replaced ... if there is no dark display could one of many :
1- check the rams (try another ram to test )
2- check the monitor's cable which connected to the main board
3- check the cpu
4- if nothing of above worked replace the main board ...
give feed back if you can ,,,

Mar 06, 2012 | HP Computers & Internet

1 Answer

My laptop monitor goes dark


Hi there! Try this trick...

You can adjust the screen brightness within BIOS set up...

It works with Dell!!!

^_^

May 13, 2010 | Dell Inspiron 6400 Notebook

1 Answer

My brightness control does not work just turned on and can not hardly see anything it is up and running what now


Have you tested it with an external monitor?

I would say you either have a damaged inverter board or screen baclight lamp. Usually the inverter board fails in one of the following ways:

1. When you turn on the laptop, the screen lights up for a short period of time and then goes dark. You still can see an image but it is very dark, almost invisible and definitely not usable. When you restart the laptop, the screen lights up and then goes dark again. The laptop works fine with an external monitor.
2. Your laptop turns on but the screen remains dark all the time. You still can see a very dim image outline. The laptop works fine with an external monitor.
3. The laptop screen works fine for hours or even days, but sometimes it goes very dark as it mentioned above. When you restart the laptop, the screen works fine again.

Inverter failure symptoms are very similar to backlight lamp failure symptoms and in most cases you cannot tell which one is causing the problem until you replace either the inverter board or the backlight lamp. From my personal experience, inverter boards fail more often than backlight lamps. If you have to guess, replace the inverter first.

Mar 24, 2010 | Dell Inspiron 1545 Notebook

1 Answer

HP DV 1000 screen goes dark after boot up. Plug in external monitor and it works fine. Toggle between internal and external and I can get the laptop monitor to come back on for a few min. Turning...


Your laptop's monitor went bad and needs to be replaced. I had the same problem on an IBM laptop I had. Replacing the monitor costs between $120-220.

Apr 15, 2009 | HP Pavilion DV5-1000US Laptop

1 Answer

Monitor light is almost out, but laptop still functions fine.


Sounds like either the Backlight or the LCD inverter is bad, if you hear a high pitched whine it is the inverter, if it is just dark it is more than likely the LCD, check out ebay for a replacement...

Hope this helps.

David

Mar 13, 2009 | Gateway M320 Notebook

1 Answer

Monitor keeps going dark


It sounds like a LCD backlight problem. Bring it to an authorized repair shop.

Dec 02, 2008 | Dell Latitude D600 Notebook

1 Answer

Gateway 320S monitor is dark... external monitor works fine


Yes your back light has failed inside the lcd. That can be replaced.

Oct 28, 2008 | Gateway M305CRV Notebook

1 Answer

Laptop Screen dark yet computer works with external monitor


does the fan work ok? and do you have a laptop holder for it or you just have it on a desk ....get a laptop holder for it if you do not have one and as for the rest goto the power mangment area on the computer and see if the monitor might be on stand by after a few min ...

Jul 14, 2008 | Compaq Presario R3000 Notebook

1 Answer

Monitor too dark....


Usually every laptop has the option of adjusting the screen brightness as you would want the screen to be pretty dim when running on battery to conserve battery life.
First thing to check would be just that.

Dec 11, 2007 | Apple Colorsync 850 Monitor

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