Question about Dell Inspiron 1420 Motherboard - KN548

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When i conect charger to laptop then charger green light is off

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The adapter could be faulty or the power socket on the laptop could be faulty. Please click on this link and follow my instruction to determine the fault and fix :-
http://www.fixya.com/support/r4799950-laptop_battery_power_supply_problems

Posted on Nov 07, 2010

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Posted on Jan 02, 2017

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I can not even get the thing to come on the green light comes on but nothing ele


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Green light cuts off when plugging into laptop


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Then the tricky part, try to power something else with the charger , something who might work with the output power (a car light bulb for exemple).
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How i can check the dell nps-460bb power supply working or not?


If there is a light on it and its on, its a start, if you have a volt meter u can get a reading from the conection that goes into computer. check the pins inside this conection with a pen see if they are loose, another way is to place the black box againts ur ear firmly listen carefully for a hum, if its hummmming then its working, if the charger aint pwoering the laptop check the conection that goes into laptop for any loose parts, another problem can be the laptops conection its self , give it a sligh push to one side or the other to see if it lights up the laptop, or try it in another laptop that uses the same conection.

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I have a Medion 221o. When the charger is plugged


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