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Old 06-18-2010, 11:49 PM   #1 (permalink)
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Exclamation Laptop shuts off instantly when the charger is plugged in...help?

My girlfriend has an HP Pavilion dv4-122nr, she got it about a year ago. It has been getting messages about replacing the battery, but I never really thought it was that big of a deal. Now for some reason, as soon as she plugs in the power cord, it shuts off instantly and will NOT turn back on if it is plugged in. It also will not turn on if the battery is out but plugged in... any ideas guys? is it the battery, the charger, or the plug on the laptop? thanks for the help TF!
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Old 06-19-2010, 12:00 AM   #2 (permalink)
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Default Re: Laptop shuts off instantly when the charger is plugged in...help?

I think you need a new charger. check it out when you plug it in, does the battery move around somewhat?

Edit - Because I used to have a charger that popped out when you plugged the charger in, taped it up and it worked fine.. lol
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Old 06-19-2010, 12:03 AM   #3 (permalink)
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Default Re: Laptop shuts off instantly when the charger is plugged in...help?

nothing moves, it just instantly shuts off when I plug it in
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Old 06-19-2010, 12:06 AM   #4 (permalink)
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Default Re: Laptop shuts off instantly when the charger is plugged in...help?

Probably charger or battery, but you should wait for someone else who comes around who might know a little more than me before you spend your money.
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Old 06-19-2010, 12:07 AM   #5 (permalink)
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Default Re: Laptop shuts off instantly when the charger is plugged in...help?

yea, gonna wait lol. thanks though. Its definitely one or the other.
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Old 06-19-2010, 12:07 AM   #6 (permalink)
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Default Re: Laptop shuts off instantly when the charger is plugged in...help?

Or bring it into geek squad, if you want to wait about 1 - 2 weeks.
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Old 06-19-2010, 12:10 AM   #7 (permalink)
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Default Re: Laptop shuts off instantly when the charger is plugged in...help?

we are broke college kids haha, not paying geek squad lol
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Old 06-19-2010, 12:12 AM   #8 (permalink)
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Default Re: Laptop shuts off instantly when the charger is plugged in...help?

lol, well good luck, hope you fix it, nice laptop.
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Old 06-19-2010, 12:14 AM   #9 (permalink)
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Default Re: Laptop shuts off instantly when the charger is plugged in...help?

thanks man!
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Old 06-19-2010, 04:04 AM   #10 (permalink)
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Default Re: Laptop shuts off instantly when the charger is plugged in...help?

If you have a multimeter, probe the + and - on the power adapter, compare the read out to what the adapter is listed for, also, make sure it isn't putting out the wrong voltage, AC, I have seen some adapters put out AC or the wrong voltage and laptops will shut down like a PC does when it is given bad power.

If that fails, probe the contacts on the jack inside the laptop with battery removed, make sure you set the multimeter to continuity, if you get a tone, you have an internal short either on the motherboard, or the jack is busted.

But, I am somewhat willing to bet the adapter is bust along with the batt, if the adapter starts putting out AC, sometimes that isn't enough to screw with a laptop if its a minute amount, but just enough to cause damage to the battery, or even the charging circuit of the motherboard.
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