Question about HP Compaq Presario 1700T Notebook

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Compaq monitor blank screen

My monitor is not working fine
when i start it shows the blank screen
tell me the solution

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If its a blank screen all the time that never shows anything not even a screen at startup then it sounds like the internal cable from your monitor to the motherboard of the laptop is unplugged or possibly broken. You need to remove the keyboard from the laptop to check this.

I recommend bringing the laptop to a professional if you have no experience with opening laptops.

Posted on Oct 17, 2008

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Hi There,

You can troubleshoot this at home, work, or a friend's house by connecting your laptop to an external monitor. On a Compaq you will need to hold down the "fn" key and press the "F4" key once they are connected to transfer the signal to the external monitor.

If the external monitor displays your normal screen view, then your laptop's screen (LCD) has failed. If it does not display and shows the same screen as your laptop, then your video controller on the laptop's motherboard or another motherboard problem is the issue.

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Did it display any video at all with boot options or HP logo? Any POST test or beeps after you started the laptop?
Try removing the power ac adapter and battery. then only boot it up with just the AC adapter (no battery).
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In most cases you can change from the external display to the internal and vice versa by holding down the blue Fn key, and hitting the proper number on the keyboard. The correct key has a blue icon meant to resemble a monitor on it.

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