it working fine when i connected to a external monitor now...i found out just now... the system is on now...but the laptop screen is still nothing....and the system can not find the video card on laptop... just the external monitor.... do you think the laptop screen is broken? what can i do?
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Re: acer laptop wont't turn up...
good to hear... least we know what is wrong...
so it can be one of 3 things... the first 2 are the most common and the last one can happen but I haven't seen it happen too often.
1. LCD control board is busted. Usually a circuit board that controls the picture going to the LCD screen. Usually built into the LCD monitor.
2. LCD screen is busted. The screen itself is busted.
3. Video card on the laptop is busted.
I'm going with 3 as you typed the system can't find the video card on the laptop. Try going to device manager and try to see if the computers/windows detects the video card. If it pops up you can try re-installing the drivers for the video card.
Check for any "Unknown" devices as that might be the video card itself.
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Hi Daniel, The LCD screen displays is dark/ dim because there is no backlight. There
are two parts responsible for lighting the display. First is the CCFL
(Cold Cathode Florecent Lamp), which is the back light and the second
is the Inverter board, which provides high voltage to the CCFL. Either
of the parts can be faulty or in some rare cases both. But most likely
it is the CCFL (Lamp). Its life is limited and depending upon how long
it has been in use, you can have a better idea - if its the CCFL or
Inverter. (Rest assure that your system/ motherboard is ok as you have checked it by
connecting you laptop with some external display, which is working fine). Hence, the board/ graphics processor is OK. (In case the graphics processor fails, there is no display at all on the external monitor) So, my advice is that you check the laptop LCD display for replacement of CCFL. I have found a general link about CCFL replacement. Click here for detailed and graphical DIY instructions about LCD disassembly. Make sure you take proper precaution while working inside LCD, as the inverter generates a very high voltage.
need some clarifications on here. you connected the Acer Monitor to your Dell laptop right? when you opened the screen goes black. i believe you have to press the FN + F7 or FN + F5 on your laptop to make a display on the Acer Monitor.
Connect an external monitor (CRT or LCD) to the laptop's "VGA-out" port. Then, turn your laptop on. Does it show the usual "start-up" screen, on the external monitor? If so, then either your laptop's screen is totally-dead, or the "LCD-inverter" (a $20 part that takes $50 for a technician to replace) needs replacement.
Or, does your laptop have a key-sequence (LCD-screen-only, LCD-and-external, external-only) that needs to be used to select LCD-only mode?
Do you hear a beeping sound when turning it on? Try connecting an external monitor (Desktop monitor) then press FN+F8 (Dell laptop only) and FN+F4 (HP laptop only). If it works on an external monitor, you may need to contact your computer manufacturer. check the warranty and request for an LCD monitor replacement.
If you hear a beeping sound when turning on your laptop or no power (no light). you may need to reseat the memory (RAM) or check the AC adapter (power adapter).
Let me also know the system model and computer manufacturer.
can you hook it to an external monitor if so then boot in with the external monitor ans see if the screen apears with operating system then look for the monitor icon on the laptop if found then press the fn+the monitor key together and see if this swaps back to laptop lcd but if you have not got the option of uotput to a second monitor then get it repaired
It shouldn't be a problem connecting an external monitor to the laptop using a vga cord. Once connected you will have to use the "Fn" button on the laptop and the corresponding "F" function button located at the top of the keyboard of the laptop that will allow the laptop to switch from both monitors or just each one individually. Usually it is the "F4" button.
If U have another monitor, plug it into the rear external monitor connection. There is a function key that will switch video over to the external monitor if it does not come up automaticly. Please reply as to the results. What did U do prior to loosing Ur video?