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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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  • Sonkin Dec 01, 2007

    i didn't do anything to my laptop and it happent, how can i fix it?

  • Anonymous Dec 09, 2007

    my lcd screen was flashing and then went dark.It came back for a few hours and went dark again

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2 Answers

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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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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Tip

Well if you have a old laptop with a broken hinge or if its just old and you...


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:

Plexi-glass

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 https://shipit.ubuntu.com/


terms:

motherboard: the central board where everything connects: http://www.laptopparts101.com/wp-content/uploads/2008/12/laptop-main-board-560x420.jpg

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): http://www.amitbhawani.com/blog/images/L/Laptop-Ram.jpg

Lcd Display: Liquid crystal Display, the screen: http://www.made-in-china.com/image/2f0j00SvwtJoganrbPM/LCD-Panel-LTM240M2-L01-.jpg

screen inverter: a device in the screen region that ups the voltage to what is required for the ccfl to light: http://media.photobucket.com/image/Lcd%20panel%20inverter/davidli919/inverter.jpg

ccfl: a cold cathode floresent light, similar to normal flouresent lights just smaller: http://www.byfort.com/ccfl/LCDCCFL.jpg

cpu: the part in a computer that processes everything that happens on the computer: http://img.alibaba.com/photo/104768066/Laptop_cpu_various_P8400_P9500_T5450_T5750_CENTRINO_1_7_2_0_ETC.jpg

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.: http://img279.imageshack.us/i/100120062323kp.jpg/

Disk Drive: a drive capable of reading discs: http://images.google.com/imgres?imgurl=http://www.laptopparts101.com/wp-content/uploads/2008/12/laptop-cd-dvd-optical-drives.jpg&imgrefurl=http://www.laptopparts101.com/cd-dvd-optical-drive/&usg=__Ux6rSxMNgmluei_j6e7oRXf9N0I=&h=420&w=560&sz=38&hl=en&start=1&sig2=RyGhHxAr5xAdTtaS7oJcAA&tbnid=c63UleTeaakrTM:&tbnh=100&tbnw=133&prev=/images%3Fq%3Dlaptop%2Bopticak%2Bdisk%2Bdrive%26gbv%3D2%26hl%3Den%26sa%3DG&ei=GJ87S7TUApDktAOR9JSZBA

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.: http://img.alibaba.com/photo/215581192/2_5_160gb_IDE_hard_disk_drive_160gb_IDE_HDD_.jpg

on Dec 30, 2009 | Vehicle Parts & Accessories

Tip

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:

Plexi-glass

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 https://shipit.ubuntu.com/


terms:

motherboard: the central board where everything connects: http://www.laptopparts101.com/wp-content/uploads/2008/12/laptop-main-board-560x420.jpg

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): http://www.amitbhawani.com/blog/images/L/Laptop-Ram.jpg

Lcd Display: Liquid crystal Display, the screen: http://www.made-in-china.com/image/2f0j00SvwtJoganrbPM/LCD-Panel-LTM240M2-L01-.jpg

screen inverter: a device in the screen region that ups the voltage to what is required for the ccfl to light: http://media.photobucket.com/image/Lcd%20panel%20inverter/davidli919/inverter.jpg

ccfl: a cold cathode floresent light, similar to normal flouresent lights just smaller: http://www.byfort.com/ccfl/LCDCCFL.jpg

cpu: the part in a computer that processes everything that happens on the computer: http://img.alibaba.com/photo/104768066/Laptop_cpu_various_P8400_P9500_T5450_T5750_CENTRINO_1_7_2_0_ETC.jpg

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.: http://img279.imageshack.us/i/100120062323kp.jpg/

Disk Drive: a drive capable of reading discs: http://images.google.com/imgres?imgurl=http://www.laptopparts101.com/wp-content/uploads/2008/12/laptop-cd-dvd-optical-drives.jpg&imgrefurl=http://www.laptopparts101.com/cd-dvd-optical-drive/&usg=_Ux6rSxMNgmluei_j6e7oRXf9N0I=&h=420&w=560&sz=38&hl=en&start=1&sig2=RyGhHxAr5xAdTtaS7oJcAA&tbnid=c63UleTeaakrTM:&tbnh=100&tbnw=133&prev=/images%3Fq%3Dlaptop%2Bopticak%2Bdisk%2Bdrive%26gbv%3D2%26hl%3Den%26sa%3DG&ei=GJ87S7TUApDktAOR9JSZBA

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.: http://img.alibaba.com/photo/215581192/2_5_160gb_IDE_hard_disk_drive_160gb_IDE_HDD
.jpg

on Dec 30, 2009 | Computers & Internet

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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
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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.

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