REFERENCE Lenovo laptop No power

[wallyavila66]

Lenovo laptop not sure exact model wala na sticker.
Board model: EG430 NM-B731
Issue. No power.
Voltage checking: only 20v and 3.3v are present.

Solution: voltage injection. Sa may 5v section habang disconnected coil. Uminit cap sa baba ng coil(nka highlight sa boardview), tangalin shorted and done may power na.

Nka angat coil going to cpu for verification lng hehe

 

[gheferd]

nice one idol pa share naman ng tricks po sa pag trace ng tatlong voltage na present dapat newbie lang po