Hey guys,

initially this board don't turn On because some corroded components closser to PU18.
Now, the board turn's on but the CHIP BGA does not heat up!

I noticed that VGA_PWROK is 0V and VGA_ON pin "5" is 3.3V! This VGA_PWROK is generated by pu998 or PCH ??

I needed an expert help,

Thank you guys

anyone can help me pleaz??

Resolder or replace PU998 and components near, check PQ38,75,78,79.
VGA_PWROK goes from r155 and PU998 sets it to 0 in case of problems

m1chaelc Thank you for your help ... You are the MAN!!! Pq78 broken!!

I am from Portugal, and I feel we are very far from your quality in terms of repair of notebooks!

I would love to learn how to read electrical schematics.

Thank You, Problem Solved