Question about Compaq Presario 700 470024-192 Notebook

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Hi i have a compaq c7oo laptop it starts up fine but if you try and adjust the monitor it turns dark i have had an external monitor connected to it but it stays on while the laptop monitor goes dark if i start it up and don't move the monitor it will stay on forever what do you think

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In all likely hood, you have a loose connection or a worn LCD cable. This is a common failure in all laptops. If it is a loose connection, re-seating the connectors on both ends of the cable will cure this. If the cable has broken wires in it, it will have to be replaced. i would suggest a knowledgeable person or pro to tackle this for you.

Posted on Apr 07, 2011

  • Willie Stovall
    Willie Stovall Apr 07, 2011

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Compaq presario c500 has power and charges but the screen stays off disks will eject and you can hear the computer running just nothing on the screen.


hi there,
Please have it plugged it onto an external monitor to make sure that the problem is not with the LCD. Is there a backlight on the LCD or is it totally dark?
If the external monitor gives out an image it means that the LCD might be busted but do you know the keyboard shortcut to switch between the external monitor and the laptop screen?
You can try FN+ F5. if that does not work you definitely have to try it out on a external monitor.

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1 Answer

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Hi Bonde Ramipr,

It is possible that you have a faulty display, can you connect your notebook to an external monitor?
you will need a Monitor and a VGA cable (the same cable you use to connect a normal PC to a monitor).

after you conect the notebood to the monitor start your notebook. you should be able to see the boot process on the monitor, if not you may have to tell your notebook to use the external monitor. you can do this by pressing the "fn" key on your notebooks keyboard and at the same time pressing the key that cycles the display output. I will try to get a picture for you.

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1 Answer

Hi, I have a Compaq Presario CQ60-212US laptop. When I try to turn it on the computer started but my monitor would not display. I've tried plugging it in to a different monitor and tried booting from a...


sounds like your monitor cable has died. This will mean openng the machine up and is a fiddely job,. If you cant connect to an external dispaly with the connection on the laptop....then that is your problem

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1. try reloading ur OS (Windows)

2. check ur RAM

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1 Answer

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Try connecting an external monitor to the your laptop and see if the vertical line is also present on the monitor. If the monitor display is fine, then your laptop’s LCD display panel is defective. If the monitor also displays the vertical line, then your problem is with either the video card or motherboard located inside your laptop.Not sure if the Compaq Presario has an external monitor plug, but if it does the above procedure can be applied to that one as well.

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1 Answer

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If you already replaced the inverter and the screen still continues dark, you need to replace your lcd screen. Your video card is good due you have signal with external monitor.

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It sounds like your backlight in the LCD screen has died. However your system should work with an external monitor. When you connected up the monitor to the VGA connector did you change the settings on the system to output to the VGA output ?
Try connecting the monitor before the computer is turned on - then once booted hold the Fn key and press F7. Then pause then press Fn and F7 again to see if you can get the external screen to show your screen. It sounds like a dead back light though.

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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 ...

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1 Answer

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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.

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