Toshiba Tecra A7 Won't Turn On

SOURCE: 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.

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.

SOURCE: my toshiba 2455-s305 wont boot up

If you are familiar with your laptop, i.e. the locations of hard drive, try to take it out of the its bay and put it back again. Also, if you can have someone check your battery packs, because from my experience with this laptop, when the battery packs is not charging well, i got some booting up problems.

SOURCE: Toshiba Satellite A55 Series S1063

The blinking power cord icon indicates that the battery is not charging, or is defective enough that it is overloading the charger. The laptop will not turn on unless it "thinks" the battery is charged enough to operate the computer. Even though you have the AC power connected and your adapter may be OK, it is still possible that:

1. The power jack in the rear of the computer may be broken or otherwise defective, as well as the electrical connections to it.
2. The wires and/or circuitry which connects from the power jack to the battery contacts may be defective.
3. The battery itself may be defective.
4. Can you operate the computer with only the battery?
5. DON'T try to operate the computer with the battery removed, as this can lead to a situation where the internal power supplies receive too high an input voltage. This varies from model to model, but it is generally something to avoid, since there is not much detailed information available showing the circuits in detail, we cannot make a good "guess" as to whether this may be a problem. Best to be on the safe side.
6. If you have checked the above items and have not learned anything new, AND, you have removed the battery and adapter, turned the computer off (not in that order, of course!), and let it sit overnight, and it still exhibits the same problem, that means you have "something wrong" inside the case which will require "major surgery". That is best done by a technician familiar with Toshiba laptops, and preferably, familiar with this particular model. He should also have access to proprietary Toshiba repair documentation and test procedures. I've learned from experience that it usually does more harm than good to "poke around" inside any computer if you don't know precisely what to look for, what to do, and how to repair problems you find. Unlike simpler electrical or mechanical devices of the past, you can't learn very much be observation and tinkering inside a computer! Too much is hidden from view, or depends on special parts which can't be fixed even if you determine they are defective; they must be replaced.
7. This is about all you can do from outside the case. If you notice any other symptoms, no matter how isolated or trivial they may seem, please let me know and I will see if there is anything else I can recommend. Unlike desktops, laptops are not made to be easily repaired by replacing circuit boards, add-in accessories, etc. They are pretty much self-contained. Once you determine that the problem is inside the case, first you decide if the laptop is still worth enough to warrant the hundred-dollar-plus cost the repair is likely to require, or if it would be better to replace it with a new model, or look for a used one on eBay or some other place. This is not a conspiracy by Toshiba; it is just what is necessary to get everything into the small package and keep the price within reason.

SOURCE: toshiba satellite a130/a135 series. I connect to

check the power cord to the laptop in the back wiggle it. check the lights. if they come on and go off with you giggling the power cord. the ac input socket may be broken. you may have to wedge it in one spot to get the two lights to come on let it sit there a while 20 min to charge battery some then turn on laptop.