Question about Compaq Presario CQ56-115DX Laptop

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My laptop screen wil not start. I have a black screen, what should I do?

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Plug in an external monitor and see if the laptop is booting to the desktop. If it is , then you have a bad LCD screen.

LCD screens are easy to replace and inexpensive.

Posted on May 18, 2011

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My laptop(sony vaio pcg-k14)screen turns black when i try to boot with a cd........please help me???


Hi niroulanabin ,

For your laptop to detect a cd the following conditions should be met ...

  1. Make sure that the CD is a boot able CD , for e.g. an original windows xp cd.
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Laptop wil start up, but its just a black screen


Hook up a external monitor on the video output on the back of the laptop, if it works! the LCD on the computer is the problem, caused by a bad inverter board, or back light on the screen display. If both screens show black, the Video Graphics Card is the issue which part of the motherboard.

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Hello I have a problem with my Toshiba Satellite L300D. When I start the laptop it shows just a black screen. I hear it working but the display shows nothing. Also it is really hot near the fan, but I can...


try to attach an external monitor and see if it works ..if it does it means that something is wrong with the screen ..either the ribbon or the back-light or something like that ..
do not forget to activate the external monitor with Fn +F4
if it do not work with external monitor either ..than probably its the ram memory or the video card ..I wil open the back where the ram memory is ..and remove them and put them back ..If you have more than on e..just insert one at the time cause one might be damaged ..
also try to insert a operation system disk ..and see if it boots from the disk ..in this case you just messed with the video card settings ..but I doubt cause it should show at least some writing before going blind.. but if it do not show anything its usually from the display ..(in this case will work with an external one ..)

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I cant start my computer! when i press the power button my monitors light turns orange(from yellow) and my keyboard's light starts blinking...there comes a beep sound three times,my CPU power light remains...


This means there is some issue with your computers RAM sticks, Open the CPU and refix the RAM sticks .If you have multiple RAMs in system try to fix one and start computer.Still not working remove that RAM and fix another one. even its not working you will have to change RAMs.

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My Acer Extensa 5230 wil not load windows.. can get the DOS screen but just get a black screen with a white cursor when it tries to load windows. it is running windows vista


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My srceen goes Blank


Hi,

first try booting the laptop and pressing the Fn key with the numerical ( numbered key ) that has a picture of 2 screens on it. This is for booting to an external monitor. you could also try adding an external ( pc monitor ) this will eliminate any motherboard Faults.

Secondly, the graphics chip driver may be corrupt or not installed correctly. if you have a restore cd, you could try booting the laptop, with the cd in the drive.

you can then try, to see if the settings in the bios are all correct, by booting/starting the laptop and pressing esc or F2 or delete immediately as the laptop starts. ** Be-Careful** what you adjust.
My suggestion is to look for. ** default settings tab** or load setup defaults.

these are the obvious things to try, before assuming that you have a faulty graphics chip or motherboard fault.

Mike @ compurepair.

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You most likely have a faulty hard drive, especially if it is making a clicking sound.
You wil need to purchase a new hard drive and install Windows again with the Toshiba Recovery CD.

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The flex cable and/or your display is now defective. The MOT Razr has a very bad design flaw with its display, keypad, and charging mech. Try to get a warranty repair if you can.....

Best of luck....

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