A1990 820-01814-A no power

[hgoncalves]

Hello I have an A1990 820-01814-A , that stoped working out of the blue. It has no liquid damages and has no power (it consumes 4.9V on ampmeter).
I can't find any boardview or schematics.
Can you help me?

 

[2informaticos]

Write directly to my email for schematic...