I have a toshiba m115,at first it would lose ac power till you wiggled the ac adaptor...one day ac power quit working and the battery continued to power the laptop just fine until it went dead. ive checked the ac adaptor and its good but to make sure used a buddies with same laptop but nothing,no lights,,,,nothing i opened the laptop and it has a connecter thats connected via wires and not soldered.......i jumped around the plug and hooked up the charger via the wires but still no power...please help
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Re: toshiba m115 will not power on
You have eliminated all that you could with the fualt finding. You will unfoertunetly have to take the notebook in to a repair centre. The charging circuit on the motherboard is blown. Please feel free to search he Repair Service Directory on this site for a repair centre close to you.
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The laptop probably isn't charging. Could be a bad d/c connector on the laptop or the battery is bad. Remove the battery and plug in the a/c adapter and see if it powers on. Wiggle the a/c plug in gently while pressing the power button on the laptop. It powers on and off briefly then I'd say it's the d/c jack on the laptop, bad sodder joint.
Try attaching an external monitor to the laptop & see if you could get any display on it. If this is successful, then you might have either a faulty LCD cable or screen inverter board. The
LCD cable transfers data signal from the motherboard & video card
to the LCD screen. It also supplies high voltage DC power to the screen
inverter board. The screen inverter board works as a power supply for
the backlight lamp mounted inside the LCD screen. It converts low
voltage DC power to high voltage AC power needed for the backlight lamp.
sounds like the power connector (where you plug into pc) is going bad. try twisting / wiggling connector. pause for a few seconds between twists to give circuitry chance to reconize power input. sometimes there is a green led that will light up when power adaptor is inserted. you can use that as a reference.
Keep in mind since you cleaned it out, only have the AC adaptor hooked up to rule the battery out. If the laptop stays on with only the ac adaptor hooked up and doesn't shut off then you know that the battery is faulty. If it still shuts off even with just the ac adaptor hooked up then it could be the ac adaptor.
Also check one more thing, with only the ac adaptor hooked up, wiggle the cord where it plugs into the laptop and see if the laptop shuts off, if it does then the dc jack on the motherboard is loose and needs to be resoldered back into place so it stays put.
if the touchpad is working fine with the battery and if it is not working with the ac adaptor then in this case u can try with the different ac adaptor and still if it does the same thing then uninstall and resintall the toouchpad driver and restart the computer and still if it does so with the ac adaptor then u need to open the laptop chasis and then u need to fix up the power supply connector in the motherboard where the power supply from the ac adaptor is not getting the adequate response from motherboard.
First that u need to do is to remove the battery from your toshiba laptop. Plug in the AC adapter alone and power it on. If it works, then u need to check your battery. If the notebook wont power on with the AC adapter alone, then i think its a NO POST issue. The motherboard needs to be checked.
Although symptom is showing that AC Adaptor is not working as its not providing power to the unit. I will suggest you to perform some basic troubleshooting steps. Check if outlet is working if not check with known working outlet. If you have a multimeter you can the output of the AC adaptor.
Also you can perform full power cycle and component discharge. Take the battery out and disconnect the AC adaptor press the power button and hold about 7 seconds. After that put the AC adaptor in and test again.
If issue persist take to nearest Service center check with known working AC adaptor. After that I believe you will figure out the best solution.