HELP Ideapad 110-14ibr - NM-A805 - Don't power on

Hi everyone. I'm currently working on a IdeaPad 110-14ibr which has an embeded power button on his keyboard. The problem is that laptop only power on if i press the reset button. After i start the OS all the other keys works perfectly exept the power. So i'm assuming that the keyboard is the problem, BUT, i wish to have the keybord conector pinout just to start it "properly" to have 100% confidense that is actualy the KB not the motherboard itself. Since i can't download it nowere if one of you culd tell me which pin is actualy used for power, it will be extremely helpfu.

Oh, i already updated the bios firmware just to make sure.

 

If you means to use the multimeter in continuity scale on the power key to find which pin it comes from i already try it but have not succeeded.

 

The only places that have that diagrama i cant access. Including here. Can you please post a picture from the keyboard conector in the schematic? Only this will solve my entire problem.

Here is the forum link for it - Схема Lenovo Ideapad 110-15IBR LCFC CG420 NM-A805 Rev:0.1 | СервисКомп форум по ремонту радиоэлектронной аппаратуры

 

No problem.

 

Check:

 

Thank you! I could power it up from pin 31. No doubt about the defective keyboard!