Technical Support LENOVO ideapad 500

[Dulur]

Anyone want to fix LENOVO ideapad 500
QIQY6 LA-8692P REV 1.0 Total Off,
checked there is a voltage drop, on pq58 pin 5678 comes out only 4.9 volts
at the gate pq 57 & pq58 output voltage 17.8 volts. Please help how to solve the next step. Thanks for all the opinions.

 

[Ahmad Safari]

LINK SCHEMATIC
Declare the resistance values of the sections I specified in numbers 1 to 4. By placing the multimeter in the resistance range. Place the red multimeter prope on the ground and the black prope on the spot I specified.
Guides can be provided if you enter the values correctly. Experimentally in area 1 you have a connection.