Lenovo Yoga 370 NO DISPLAY

[NConstantinou]

Dear all,

the laptop is charging, i have 3.3,5v and 1v on coils. when i switch on the fan spins and stops.. i tried removing the battary and hold the power button by removing power cable for 60 sec but nothing.
does anyone has any suggestions!

i noticed the sw3 on board is broken completely.

thanks

[NConstantinou]

WHAT IS THE IC 4B=4D! WHERE CAN I FIND DATASHEET!

THANKS

[mon2]

IC Marking Codes and Datasheets - Badcaps

[NConstantinou]

So 4B= means that is rt8207p ic!

[mon2]

RT8207PGQW ; order this part number and with this suffix to be safe