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Older Toshiba laptop runs on battery, but not AC cord.

I have an older model Toshiba satellite (4200). but only works with the battery in and AC cord in. take either out, unit wont work. so, its running off the battery even with the AC cord in. take the battery out, leave plug in, unit wont turn on. is not the power cord. what could it be? I've heard of power cord is 'going', re & re power utility programs, even mobo fuse. but after reading here, I noticed you say there's no fuse on the mthr board.

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  • Mike Baker Jan 04, 2013

    no, I only mentioned removal of the battery to show that I've tried several things. this is not about the battery. its about the unit running off the battery, not the power cord despite the fact that the cord is attached.

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  • 281 Answers

On some older laptops the battery has to be installed for it to turn on.
if the battery don't hold a charge it's no good.. but you need it to get power from plug.

Posted on Jan 04, 2013

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Posted on Jan 02, 2017

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SOURCE: toshiba satellite a100 wont take on power or boot

the battry is not charging and check the model of the battry whether its the same

Posted on Nov 16, 2008

jgwhomeequip
  • 1902 Answers

SOURCE: Toshiba satellite a215-s7422 laptop wil not turn on

It sounds like the motherboard is bad. There is no power being sent to the fan and that means that somewhere in the the mother board is not sending the info.

Posted on Feb 04, 2009

RescueTechLA
  • 2653 Answers

SOURCE: my toshiba satellite m305ds4831 laptop will not

It's a motherboard hardware issue in all likelihood.

There is NOTHING you can do but update the firmware bios. The problem is that most bios firmware update programs require both ac and battery power at the same time :(

You can try to do it anyways by visiting Toshiba's support page for your model and downloading the firmware from there.

It probably won't fix the problem but it's still worth a shot....sometimes it works ;)

Posted on Nov 21, 2009

  • 181 Answers

SOURCE: Battery will not charge/ keep computer on. laptop

Sounds to me like the transformer circuit that enables the batery to charge. If you have bought your machine within the last 12 months it should still be covered by warranty so go back to the supplier. If not covered I wouod still try as it is not beyond reasonable expecations that the machine will operate perfectly in very way for more than 1 year.

Posted on Feb 13, 2010

RescueTechLA
  • 2653 Answers

SOURCE: Laptop Toshiba Satellite A200 Model No. PSAF6A-02C01N fail boot

Try removing / swapping / reseating the memory.

Try booting with one stick only, if the top slot doesn't work, try booting the bottom slot. Try both sticks.

Let me know what happens.

Posted on Apr 04, 2010

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1 Answer

Toshiba Satellite won't start up when AC plugged in


Try another Cord/Charger to verify the Cord, AC jack. If you plug in the AC cord after starting on battery, does the battery charge? Open Control Panel, Power Options, set to High Performance, Advanced power settings, set Sleep and Hibernate to Never, Adjust Advanced power setting to your preference.

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Toshiba satellite A200-27Z power cord led flasing failure to post will try any suggestions


Have you tried another Cord with the EXACT same power specs? Remove the battery. Has the cord/charger/transformer been damaged? Has the AC jack been damaged? Due to pulling on the cord while plugged in? At the AC jack "wiggle" the plug a bit to see if the plug and AC jack are making a good connection or Loose. Sounds like a loose AC connection.

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1 Answer

My battery doesn't recharge laptop when laptop is plugged in . What to do and at what approximate cost if new battery needed?


Hi there! There are two possible causes of the problem - it's either your battery or your AC Adapter. To diagnose whether or not it is your AC Adapter, test it this way. Does your laptop function with the power cord plugged in and the battery out? If this is the case, your AC adapter is fine and your battery is done. To replace the battery, expect somewhere between $75-$175. Here is a link to the cheapest battery site I've found so far - I use it for work all the time. http://www.batterydepot.com/mfg/TOSHIBA/LAPTOP-BATTERIES
If your laptop doesn't work with just the AC adapter plugged in, then that is your problem! AC Adapters are cheaper than the batteries. They can be purchased here for around $50: http://www.buylaptopadapter.com/toshiba-adapters.html
Make sure you match the model number on the bottom of your laptop perfectly with the model number of the battery or AC Adapter! Good luck! Alex

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1 Answer

My toshiba satellite pro doesn't work , even with charger in , it doesn't turn on , its like all the power is gone :o ?


You may have a bad DC connection:

Symptoms of a broken power jack
1. If you wiggle the power cord or the AC Adapter connector on the back of the laptop, the power LED and battery charge LED start to flicker.
2. Battery will not charge in the laptop.
3. Laptop runs fine off a charged battery.
4. With the AC Adapter connected the laptop appears to be dead.
No power LED or battery charge LED activity.
5. Laptop randomly powers off without any warning



If your laptop is out of warranty, then you can fix the problem by resoldering DC-IN jack on the system board. If it

Dec 16, 2010 | Toshiba Satellite A60 Notebook

1 Answer

My toshiba satellite m305ds4831 laptop will not


It's a motherboard hardware issue in all likelihood.

There is NOTHING you can do but update the firmware bios. The problem is that most bios firmware update programs require both ac and battery power at the same time :(

You can try to do it anyways by visiting Toshiba's support page for your model and downloading the firmware from there.

It probably won't fix the problem but it's still worth a shot....sometimes it works ;)

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1 Answer

Laptop won't run on ac power and keeps shutting down


Check that the AC power works, go to a repair shop and test a different one or have voltages checked with a multimeter.

If the AC adapter is fine, then it is usuall because AC socket solder joints on laptop are broken. In this case , it is a delicate repair, and must be done by an expert repairman.

Dec 13, 2008 | Toshiba (K000006610) for Satellite P25...

1 Answer

Toshiba laptop problem


The right memory for your laptop is

256MB Memory (PC2-4200) KTT533D2/256, PA3389U-2M25 KTOS534

512MB Memory (PC2-4200) KTT533D2/512, PA3412U-1M51, PA3412U-2M51 KTOS535

1GB Memory (PC2-4200) KTT533D2/1G, PA3411U-2M1G KTOS536

Using the wrong memory can caused motherboard failure.

Try reinserting the old one memory module.
Be sure that the memory is placed in the right way

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