820-2838-a problem with powering up. fan spin for 1 second and stop

speedyaction

New member
I have 820-2838-a board with problem. when i press power button fan spin for second and stop after nothing happen. any idea? aha. i bought this laptop with faulty magsafe. when i got it there was no green light on charger. i replaced macsafe board and now i have green light
 

jadao

Member
The faulty magsafe maybe killed the charging circuit or the charger sense circuit.
What voltage do you get on ppbus_g3h?
Resistance between pins 17-18 and between pins 27-28 of U7000?
 
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