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Screen is dark but image is present

I opened my laptop in order to fix a usb port that was functioning. Everything was going well until the end of the reassembling end. I was screwing a screw that holds the lcd connection to the motherboard. The screw slipped and touch two chips that were about 1/2 an inch away. A spark jumped out. At this point I knew I was going to have a problem. I finished putting it together. Pushed the power button, then i noticed that a didn't have backlight. Could it be the video card that I damaged or the backlight? Any assistance very appreciated.

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Re: screen is dark but image is present

Busted Backlight. had same issue with my work dell, had to send it in for service, this is only what the IT guy told me. check it out.

Posted on Oct 27, 2008

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Re: screen is dark but image is present

Hi, You are VERY LUCKY, forget the laptop you could have fried yourself. My guess is you blew the inverter board. The board amplifies the current coming in to power the LCD screen. Why did you have power running while you was working?

Posted on Sep 03, 2007

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Lenovo Touch pad Stopped working

If you're positive you didn't unplug or rip anything while installing new USB ports, trying checking/updating or rolling back the drivers for the touch pad. Installing new USB ports could have mis-configured something and disabled or modified your drivers for the touch pad.

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Make a lcd picture frame from a old laptop

well if you have a old laptop with a broken hinge or if its just old and you dont have a use for it. Before you trash it, make it into a digital picture frame,
supplies needed:


old laptop with good screen

screws, nuts, bolts, tools, dremel, what ever you decide to use

a little knowledge of computer parts

a usb extension cord for making the usb port on the side

a power jack for charging

perferably a disk drive

harddrive (which should be in the laptop

wifi card (optional) - wifi antennas

power cord

usb keyboard mouse combo (perferably one that only requires 1 usb adapter, otherwise you will need a usb hub)

simply, dissassemble the unit, add a usb receiver for a keyboard mouse combo, mount the parts(motherboard, screen, drive, harddrive, ram, heatsink, processor, fan, wifi card(optional) usb reciever for keyboard mouse combo, SCREEN INVERTER (OR UR SCREEN WILL BE DARK),etc, speakers) into a pelxi glass box which is easy to make, add some vents on the side for the fan, also add a usb port and a charger port, and a simple stand and you got a digital picture frame, you may also want to add a disk drive onto it. also good for playing dvds, internet (if u install a wifi card), music (if there are speakers in the laptop, install them into this), and much more!

also have fun with it, dont worry about breaking it, its a laptop you were going to trash anyways, just have fun with it

to add the power jack just plug a similar end into the port on the motherboard and connect a jack that fits the charger on the end and mount it (hot glue works) on the back out of the way, or on the side.

operating system info

also if it is a pre-2000 computer, then install the windows operating system, if its later then 2000 then you may want to install something called Ubuntu, its a linux distro, very handy, and its absoultly free, you can order a free disk with free shipping here


motherboard: the central board where everything connects:

ram: Random Access memory, the temporary data storage medium, when you turn off the computer this memory is dumped, but you dont loose any files because there on the harddrive (see harddrive):

Lcd Display: Liquid crystal Display, the screen:

screen inverter: a device in the screen region that ups the voltage to what is required for the ccfl to light:

ccfl: a cold cathode floresent light, similar to normal flouresent lights just smaller:

cpu: the part in a computer that processes everything that happens on the computer:

Operating System, the software that makes everything possible on the computer, without a Operating System (aka O.S. or os) all your computer will do is sit at a black screen and say no operating system found.:

Disk Drive: a drive capable of reading discs:

harddrive: a device that stores all the info including the operating system, this does not get wiped when the computer loses battery or gets turned off.:

on Dec 30, 2009 | PC Laptops

1 Answer

I have Samsung R590 Laptop which i bought December last year... Before the USB ports used to work properly and display wt ever data is present in the usb ... but now it reads the data but all appear as...

Microsoft Knowledge Base
Article 971029
describes an update to Autorun that restricts AutoPlay
functionality to CD and DVD media. This update is intended to stop AutoPlay
functionality from working on USB drives, external hard drives, or network
shares. This update is available for supported editions of Windows XP, Windows
Server 2003, Windows Vista, and Windows Server 2008.

Removable USB/thumb drives use the Autorun feature to load files when the drives are plugged into the USB port. Malware exploits the Autorun feature to spread from thumb drive to PC. Disable the autorun feature to prevent malware from spreading.

The preceding describes what has likely happened to your USB ports due to Windows update disabling the autorun feature for USB thumbdrives. The thumbdrive may no longer present its data properly unless you manually invoke the autorun in its root.

Mar 27, 2011 | PC Laptops

1 Answer

My screen keeps going dark although I can see there are images on the screen . I have to move the lid back and forth until it lights up.

This indicates that the wire bundle running through the hinge has been compromised. Some wire has frayed apart and is making intermittent contact with itself or the lid movement is causing the wire bundle to pull on one of the video connectors.

In order to fix this problem, you will need to remove the laptop's front hinge cover & check the bundle of wires connecting the motherboard to the LCD screen. If this bundle of wires is damaged, then you will have to get it replaced.

Jan 06, 2011 | PC Laptops

1 Answer

How do I connect the laptop to the projector using Power Point.

Connect the data projector to the video port on the laptop. Then power up the data projector and then the laptop, the video data will automatically be diverted to the data projector.
If you want to see the Windows image on your laptop screen as well you need to press and hold down the FN key plus one of the function keys on you laptop which has a screen symbol. Pressing this key will toggle between the laptop screen, data projector or both laptop screen plus data projector.
You can open Power Point and select your presentation as you would normally.

Nov 14, 2010 | PC Laptops

2 Answers

Laptop Certain Keys Non Responsive on keyboard

if it was just water ...shut it down and blow with cool air from a hair dryer until it will work ...not with hot air cause it has some plastic sheets inside..just let it dry ...and will work ,,if it was something else ..with sugar beer..juice or will need opening and clean well and dry and after that will work ..if it has permanent damages needs a keyboard replacing ...
meanwhile if it loosing its functions...just connect a usb based kayboard and use it instead..until replacement ..if the functions will not came after drying ..but if it was just water will get back after it will dry completeli and no longer make false contacts/..

Mar 29, 2010 | PC Laptops

3 Answers

Screen not working but other monitor work

Your "F"keys are multi function. Look for the one with a picture of a monitor. Press the FN key adt the appropriate F key at the same time. You are probably in remote monitor mode. The F key is usually F5 or F8.

Dec 15, 2009 | Acer Aspire 9420-6426 Notebook

2 Answers

0701 usb over current on hc/port error

I had the same problem on a toshiba satellite u400.
Usb over current on port ... blabla..
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Rebooting the pc ended in a black screen with a flickering HD symbol.

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Si I took a USB mouse and tried to boot with the mouse plugged in on port , then another ... at the third port the PC booted normally with no error :)

Don't have any idea why it became faulty but it's now solved for me.

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USB not working on HP NX7010

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