Toshiba C855 - e89382 mv-4 94v-0

[yaman]

Hello,

I have a board from a laptop which can not turn on at all since the use of a bad charger.
I've never tried to search for the bad component on the board but since the board has just passed the warranty, I will give it a try. Actually I have two boards with the same trouble.
The fuses near the charger connector are fine. What else could it be ?

When I plug in a charger, I get only 1V for the battery, there is a mofset (I do not have the circuit diagram - if you have it, that would be great !), at the entry it's 19v when any legs out are showing 1V.

Thanks in advance for your feedbacks.

[yaman]

Re: Toshiba C855 - e89382 mv-4 94v-0 - No power at all

Well, finally I replaced the Mofset but I'm having exactly the same values 19V IN and 1V out.

There is no power at all, no light what so ever and no battery charging.

Now I'm stuck. Any help appreciated.

I think the shematic I have is the right one but hard to read, (toshibac850 - Dakar10F/FG from the thread
https://www.badcaps.net/forum/showthread.php?t=38757
).
The mofset which is replaced seems to be the AM4410NC.