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My laptop will not turn on, I replaced the battery with a known good one. and I also replaced the ac pwr adapter. any idea whats wrong?

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HI, with all those things that your tried. your laptops mainboard is the problem. You need to call SOny Laptop support to report this and have it replaced.

Posted on Dec 29, 2010

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Wen i swtich on the laptop it desnot on


You have three possible parts in the computer that's causing this problem.

1. Ac Adapter - it is the cord that you use to power up your computer.
2. Battery
3. Motherboard of your laptop

What you need to do is to isolate the part what's causing the problem.

Here's what you need to do:

1. Remove the battery from your computer and power it up by using the AC adapter only. If it goes well, then you need to replace the battery.

2. If the AC adapter doesn't power your computer. Then, check if the light in your AC adapter is lit. If not, try another AC which is working fine. You can borrow from your friend or family member who has the same computer. If a known good AC adapter does not turn on your computer, then replace your AC adapter.

3. If your battery is a known good working part and your AC adapter is also a known good part. then you need to contact a technician to get your computer serviced. The motherboard is an important part and you don't want to try fixing it.

I hope you get an idea on how to fix the problem. I hope this helps!

David

Feb 12, 2013 | Acer Aspire Computers & Internet

2 Answers

Charger is plugged but in not charging


Hi,

I see that when the Adapter is plugged-in on the Laptop it does not charge, Have you tried a different AC Adapter to see if this is an Adapter issue or if this will be a hardware issue.

This concern can be an Adapter issue try a known good AC Adapter to see if the laptop will Charge or not if still it does not remove the battery and try the Known good AC Adapter to see if the Laptop will power ON using the known good adapter if it does then the issue can be the Battery or the Charger Board in the laptop now use the Old AC Adapter and see if the Laptop will as well turn ON with out the Battery if it does then the issue is either the Battery on the laptop or the charger board on the Laptop.

I hope this helps.

Oct 22, 2012 | Computers & Internet

1 Answer

It works good on battery but when AC adaptor is plug in the laptop cuts out and restart by itself.


Problem description: The laptop shuts off when AC power adapter is plugged in. The laptop works fine on battery power but as soon as you connect it to AC adapter, the laptop turns off.
Possible cause: 1. Power adapter failure.
2. Motherboard failure.
Possible troubleshooting steps and repair solution: First of all, test the power adapter. Make sure the adapter outputs correct voltage. It's possible that the output voltage is not correct and the laptop shuts down to prevent the damage. Test your laptop with another known good power adapter.
Toshiba Satellite A305 AC Adapter
If the problem still exists, even after replacing the adapter, most likely it's the motherboard failure. Replace the motherboard.

Mar 11, 2011 | Toshiba Satellite A305-S6857, A305-S6858,...

1 Answer

My hp mini 1000 will not turn on. When I plug it in the light on the side will not say it is charging. It will not charge.


Hi,

Here are some steps that can help you resolve the issue.

First, try removing the ac adapater and the battery and press and hold the power button for about 10-15 secs to remove the flea power. Then try to deattached the power cable and the power brick and attach it again properly, plug it to the computer without the battery and try to turn on the computer. If still the same problem try a good known power socket, if your using power strip try to plug it directly to the wall socket. If nothing works, try a good known ac adapter, or try you ac adapter to a good known working computer. If a good known ac adapter didnt work, contact HP as this is a power supply issue on the computer (power supply are mostly attached to motherboard for portables) contact HP to check your warranty and have it serviced. If the good known ac adapter works, contact HP to check the warranty and have the AC adapater replace or simply replace the ac adapter.

I hope this will be able to help you.

Thank you for choosing Fixya.

Mar 10, 2011 | HP Mini 1000 Netbook

2 Answers

I have an compaq presariov2000 laptop. the problem is battery not charging and the charging symbol is also in a hide and seek mood. I also try scan for hardware changes method but it won't work. plz help.


go to compaq's website, download the latest Bios Update, run the bios update while the power suply is connected on the laptop. after the update, the power adapter should be recognized by the laptop

Sep 07, 2010 | HP Compaq Presario V2000 Notebook

3 Answers

It won't turn on


Hi. Try theses simple steps:

Remove the Battery
Remove the AC Adapter
Press/hold down power button for 10 seconds
Plug AC Adapter in and turn the computer on
If the system doesn't turn on still then there's a problem with your motherboard. and it might need replacement.

Jun 06, 2010 | IBM ThinkPad T40 2373 Notebook

2 Answers

USING AC ADAPTER PWR INPUT POWER LED ON YET NO OTHER FUNCTIONS WHEN ATTEMPTING PWR UP - NO FAN - NO DRIVE START ETC.


Your battery might be defective.
A fast check to verify this is to turn off the laptop, remove the battery, connect the power adapter, turn on the laptop & see if it works.
If the laptop works directly from the power adapter with the battery removed, then battery is defective & need to be replaced.

Nov 04, 2009 | HP Compaq Presario 2145US Notebook

1 Answer

Charger isnt recognized


Dell portables use a sensing wire in the barrel of the adapter plug to determine the wattage of the ac adapter. If that fine wire in the center of the plug is bent or broken, the system cannot ID the adapter and the battery charger is disabled.
SO, first try a known good AC adapter for a D-Series Dell (You might be able to check with Geek Squad at a local Best Buy if you don'e have access to another ac adapter) If a known good ac adapter works, then replace the ac adapter.
If a known good AC adapter does the same thing then the fault is in the charging circuit of the motherboard and the motherboard will need to be replaced.

Oct 03, 2009 | Dell Latitude D600 Notebook

2 Answers

Hp compaq nx7400 - battery died and power cord will not turn comp


Some laptops will not power up with a completely discharged or faulty battery. Remove the battery from the laptop, plug in the power cord and try to boot the system. If the system boots, your battery needs to be replaced. Replace your battery as soon as you can, it's not a good idea to run the laptop for extended periods with an open battery bay.

May 07, 2009 | HP Compaq Presario V2000 Notebook

1 Answer

Ac adapter's wont charge battery or pwr. unit


I would say take to a good PC repair shop (Not Geek Squad) and ask them to look at the power jack on the motherboard, it may need replacing. Next would be more of a a motherboard problem and its just quit. Good repair shops could help you either way get it fixed. I don't recommend anyone tackling any sort of laptop motherboard fix unless you really know what your doing.

Apr 20, 2009 | Dell Latitude D510 Notebook

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