MacBook Pro A1707 20V 1.35V at boot and increasing ampere

Hello,

My macbook pro, A1707 can not boot, but I can get 20V, 1.35A while booting. And then the ampere slowly increasing to 1.4A -> 1.5A -> 1.6A -> 1.7A… While doing some coils like L7231, L7410, …, LA350 are very hot.

There’s no chime, no display, no keyboard backlight.

Each source and gate voltage is almost same like 12.6V, 12.4V. It seems that voltage divider is not operate in Q8400. So, there’s no voltage in drain of Q8400.

What shall I do check, firstly?

Please help me!