This video need basic knowledge of electronics. If in doubt please ask me at comment area.
Free tutorial how to fix the acer laptop 4749Z that won’t turn on, no any indicators light up, shorted, short circuit to the ground.
Step by step to find broken component of shorted motherboard of the acer laptop and any other laptop brands.
The trouble source of the shorted laptop not always same as the component on this video, but this is one way to find the component that make the laptop shorted.