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No power from laptop the green light is on the mains adaptor but nothing else

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  • bobyboy Oct 14, 2008

    no still same

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Try this : First unplug the power cord, then remove the battery and reinsert it. Plug the power cord back in and wait 10 seconds. Turn power on.

Posted on Oct 14, 2008

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1 Answer

No power. no lights. I have checked the power cord and its like there is no power


Firstly check that there is power to the Ac adaptor, this can be done by seeing if the green power indicator light is on on the adaptor body.

If not, then you have a defective plug, blown 3 amp fuse or the adaptor is fried (not uncommon)
If you have a multimeter, you can set it to 20 volts DC and with the adaptor pligged into the mains, test the DC JACK end! by putting the red probe to the inner part of the jack and the black to the outer part, if no reading, then assume the adaptor is dead.

Best way to check is by testing with an adaptor (universal charger type) to see if that works.

Assuming the adaptor is putting out power, check the output with a multimeter as above and see if the voltage is at the correct level (think its 19 volts on that model). If it is, then move on to the DC jack connection on the netbook

Watch the power indicator on the adaptor, if it is not steady green (ie flashes on and off), ther power is not making a circuit in the alptop and is being "spat back", this can be anything from a blown circuit board in the power circuit, to something as simple as a motherboard main fuse.

If there is a staedy green light but no power at the netbook and the jack connection at the netbook is firm and not sloppy or loose, then you will need to have the netbook dismantled and the fuse checked ( this will also need to happen if the jack connection is loose.

Sometimes, removing the battery, pressing the power button on (with the adapator unplugged) for 30 seconds and repowering with the ac adaptor can reboot the system, but I'd be inclined to suspect the adaptor first

Apr 22, 2011 | Acer Aspire One PC Notebook

1 Answer

My Dell CPi D266XT will not power up. The light on the power cord is flashing green. When I push the power button nothing happens. None of the lights flicker like it's even trying to come on.


Hi,

It is possible that the other end of your power adaptor is defective or just loose. Tighten it securely and try to test if it is emitting voltages by using a multi-tester.

It can also be that there is a problem with the connection form your power adaptor going to the main board of your laptop.

This is a very technical problem so I suggest you let a laptop technician look at it.

Hope it helps.

Thanks!

Feb 04, 2011 | Dell Latitude CPI-D Notebook

1 Answer

My dv7 1245 dx had a short at the ac110 adaptor plug on the 18.5 volt end. This shut my computer down. Twisted wires. I bought a new HP adaptor. The computer will not power up now. The only sigh of life...


Dear Sir/Madam...
You just follow these steps:

1.Remove the battery and Adaptor
2.Press and Hold the On buttun for 30 seconds (without battery/adaptor,this is for reset the BIOS in your Laptop)
3.Now you just connect the adaptor with your laptop
4.On the adaptor socket main switch in main board
5.Watch the Laptop charging Light is ok or not.Also watch the Light in Adaptor is lighting normally or not.if all are normal then try 6th step otherwise problem in your Laptop.Just go for an authorised service center.

6.Try to ON the Laptop

All the Best....
thank you very much By Ganesh(INDIA)

6.

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1 Answer

My acer laptop is not turning on when i connect the power .i suspect there is no supply coming to laptop . when i remove battery and connect direct supply through adaptor ,there is a green line blicking...


There is nothing much to track, as if you've tried a charged battery and no battery and mains then it's likely the PSU is toast in which case check if it's still under warranty

Sep 02, 2010 | Acer Aspire One PC Notebook

1 Answer

Laptop does not work off mains and battery does not charge


Just check the power connection from the AC going to your laptop if the power adaptor of your laptop are working. Note; you only know that the power adaptor was working if the LED (Light Emiting Diode) was light because the power adaptor are have the LED to see it that they are working normally. If the power adaptor working normally their was a problem of the power supply inside your laptop and need to be repair by the electronic service center. But if the power adaptor are not working the problem are in the power adaptor. I recommend that you replace your power adaptor and bring it to the computer store to check its type and model it is because only same type or model of that power adaptor to be replace.

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No power to dell latitude d600


have you checked your ram? remove it and see if it powers on and qickly turn off. if it powers on replace ram after shutdown. if problem not fixed coud be cpu problem or mobo.

Jun 02, 2009 | Dell Latitude D600 Notebook

1 Answer

I have a Dell D600 (PP05L), its not powering up no lights. I noticed on the power adapter the green light goes out when plugged into ac power. What could be wrong here? please help


Hook up your power adaptor to ac power without it being hooked up to the laptop and see if the green light stays on. If it does then you know your adaptor is okay. if your adaptor is only hooked up to ac power and the green light still turns off then you know your ac adaptor is bad.

Take out the battery from your laptop. Now hook up the ac adaptor to the laptop and if it stays green then you know your battery is bad but you also want to make sure you can get your laptop to turn on. Hopefully it will turn on with only the ac adaptor hooked up to it.


May 04, 2009 | Dell Latitude D600 Notebook

6 Answers

Sony Viao, won't power up


Sir,
you remove your Laptop main battery and adaptor for aprox 10 min then fix again battery and adaptor then on power button m/c is on.

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