820-3115 board no Bluetooth, keyboard and trackpad , external works

[turbo]

this board 820-3115 had water damage , cleaned now working good but No keyboard or trackpad or BLUETOOTH !!!

external usb mouse keyboard works , any idea where can i start!!!

when trackpad connected there is 18v on d5802

ALSO IT TURNS ON WITH POWER BUTTON, only power button works

 

[2informaticos]

According with schematic, Bluetooth, TP/KB and IR devices are connected to PCH through an USB HUB; U2700 on page 25.
Check its area for corrosion, rebuild traces if needed, change resistors...

 

[turbo]

no luck , everything looks ok, what to do what to do larossmann

 

[2informaticos]

Looks OK, or measured OK?
Did you check traces continuity?
Also check and compare diode mode to ground for all data lines.
All power pins good for U2700?
Corect oscillation at Y2700?
USB_HUB_RESET_L OK?