Question about Toshiba Satellite (K000004080) Motherboard

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I have a problem with my toshiba satellite A300D 15N. It is not able to start with or without battery. Morever, the AC power supply led never lights. I tried to remove the battery and press the start button for a few minutes but it never manages to start when I plugged the ac power supply. I have no more idea to process. May be removing the bios cell battery for a while ... May be a power supply fuse. In order to test these solution i need a motherboard diagram but impossible to find it. Do you have solutions ???

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  • christophe_f May 01, 2010

    I'm sorry but I don't understand your answer. My laptop is toshiba, and you advices me to get a dell power supply.

    How it is possible to check that, it is a real power supply problem instead of a short cut due to a motherboard issue ?

    I think about that because from my job i have a fujitsu siemens laptop with a power supply having similar characteristics and the result when i plug it on the toshiba is the same.

    I open the laptop in order to access the power supply connector.

    If i chec my power supply output the result is nominal with 19V. When i plug the power supply to my motherboard i measure less than 1V (using the power button or not does not not change anything).

    What is amazing for me is that , I did not find any fuse or cell battery for bios.

    Anyone can provide me the toshiba A300D motherboard scheme, it would be great. My laptop is no more warrantied for only 3 months and i don t want to change it as it was cool laptop till now (less than 2 yers old).

    thanks a lot..

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You need a new power supply- get a Dell brand, as they have a special connector, and some 3rd party units will not charge the battery.

Posted on Apr 30, 2010

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