820-3209-A power button failure

[Max7]

Hello,

Can I get a quick opinion here? A board with water damage mainly around C7002 area, was cleaned up, and resistors and capacitors were replaced.
All works fine, other than the power button. I can login, and do everything, every key works but if I shut down, no way to bring it back up other than removing the battery and then connecting it to the charger. When it is on, power button does nothing.

No obvious damage under the button, and it doesn't feel like a faulty button given that all others are working.

Since the area I was working on seemed to be related to reset signals I am wondering how can I continue troubleshooting.

Thanks

 

[2informaticos]

Check if SMC_ONOFF_L reacts when you press power button.
Also check if machine turns on with R5015/16 pads, instead of power button.

 

[Max7]

SMC_ONOFF_L does not react
Shorting R5016 turns the laptop on and off as expected

 

[2informaticos]

Try known good trackpad flex/board.

Trace the SMC_ONOFF_L line from MLB to keyboard connector.
You should be able to see if problem is on trackpad, or keyboard itself.