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The power cable is plugged into my Compaq presario v4000 laptop but only charges when I move it. I keep a support against the charger while plugged in to keep it charging. However, If I just left my laptop with the charger in then the battery icon will show until I place a support under the charger. Basically, the laptop only charges when i manually adjust the position of the charger cable. The charger cable is fine as I have tested it in my brothers laptop which is the same model. I can only assume it is the laptop at fault

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The internal plug is worn / bent. Or the notebooks connection is loose. You can try to bend the power pins (ever so slightly away from each other). So when you plug in you're adapter it maintains a tighter fit. Do this with the power off. The next step is to replace the notebooks power plug.

Luck
Mike

Posted on Apr 09, 2008

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1 Answer

My compaq laptop powers up but the monitor stays black i tried to plug it in a monitor and nothing.


Unfortunately..your display may be shot...Is it a Compaq Presario? These laptops have a history of display problems...I have a Compaq Presario R3000 and the display is showing a reddish color in the left bottom corner of the screen and my brother had a similar problem with a Compaq laptop where the monitor stopped working....Unfortunately it would cost more to replace the monitor than to buy an Apple MacBook...
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When i plug in my charger to my laptop it doesnt work and i dont know whats wrong with it


This issue can be caused by any of the below possibilities. 1.- Computer AC / DC cable is bad not allowing the computer battery to charge.
2.- Battery is bad.
3.- Battery charger board is bad.

Solutions:
1.- Computer AC / DC cable is bad not allowing the computer battery to charge
Verify that the AC and or DC cable is not bad by testing the computer only with the power plug connected and the battery out of the laptop.
2.- Battery is bad
It is possible that if the power plug is good that the computer battery is bad. Leave the computer connected to the power with the battery connected in the computer for at least one hour; if the battery does not charge, consider having the battery and/or the laptop serviced or repaired.
If the computer and/or battery is not in warranty consider just replacing the battery as it is very likely that it is just a bad battery.
3.- Battery charger board is bad
If the battery has been replaced or an alternate battery from an alternate identical laptop does not work in the computer, it is likely that the power or charger board within the laptop is bad. It is recommended that the laptop be serviced or repaired.


This will fix your problem.
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Pablo

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your are probably experiencing a short in your ac cable, the next time it happens wiggle the cable, if the ac pops up in the task bar stop using the charger and buy a replacement.
PS check the slot where the adapter plugs in the back of the laptop to see if its loose, if it is take to the repair shop.
compaq are known for tis problem.

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hmmm...sounds like either the battery is deep discharged, or the motherboard isn't passing the charge voltage through to the battery..

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