My computer will not turn on even plugged in to the ac/dc adapter. It gives no indication it is receiving power. No LED indicator lights come on indicating a power connection. I know my ac/dc converter is working. I have checked the connecter power jack and it seems fine. What could be the problem???
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Re: Toshiba Satellite A105
The most common problem on these units is the ac connector solder joints break away from the motherboard. If you're sure the ac adapter is working, and the correct one, and it's not charging the battery (assuming the battery is good), it's most likely the problem. They don't have to appear loose to be loose.
Otherwise, it's motherboard time, or a loose screw, etc has caused a dead short on the board.
Good luck, if you have additional info, let me know.
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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
In my searching for another problem, I read a lot of postings about Toshiba laptop computers and faulty power plugs (at the spot where you plug in your AC adapter into the computer). It seems to be some kind of universal problem with Toshiba and I think there was even a recall a while back because of this. I do not know if this is your problem, but it certainly sounds similar.
Definitely try without the battery. These models are known to have a "short" problem, usually with the palm rest, which causes this failure, although it usually is more sporatic, and doesn't happen 100% of the time.
Also, can you remove all but 1 piece of memory.
Good luck, and let us know what happens.
When The Light Is Blue You are getting Power To The Unit. Have You Tried removing the battery Leave The Power Cord Pluged Into The Side Of The Unit. Then Try To Power The Unit Up Again. If Nothing Happens. Chck The manual I Think There Is A Reset Button Somewhere On The Machine Most Toshibas Have Them Somewhere. Hope This Works
How handy are you with a digital multimeter? If the laptop is still disassembled, find the solder connections on the motherboard where the mini power cable enters the board from the jack. Plug the AC adapter in. Check to make sure you have the proper DC voltage at those points (should be about 19V, although the AC adapter should say what it's DC output is).
If you don't get any DC voltage (or too low), check the DC plug of the AC adapter. The inside of the plug should be + and the outside should be -. If you are getting voltage there, but not the motherboard, chances are it's the jack or the mini power cable on the motherboard. These can be replaced, it just depends on how confident you are about doing it yourself :).