820-3115 board no key board, mouse and Bluetooth, external mouse keyboard works

[turbo]

this board 820-3115 had water damage , cleaned and changed u7200, now working good but no key board or mouse, also Bluetooth NOT working,

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

when glass pad connected there is 18v on d5802

ALSO IT TURNS ON WITH POWER BUTTON,

inside mac does not rec mouse keyboard or bluetooth, im assuming internal usb something problem

 

[2informaticos]

Inspect around U5701; traces, solders, nearest resistors.
Be sure BUTTON_DISABLE is kept low.

 

[turbo]

around u5701 looks good

 

[2informaticos]

Use multimeter and check resistors value.
Also check continuity from U5701 to J5713 and J5800.

 

[turbo]

alll value looks good, bluetooth also not working, i think internal usb not wokring some how, ...
what to do

 

[2informaticos]

Check diode mode on all (internal) USB data lines.

 

[turbo]

Check diode mode on all (internal) USB data lines.

bluetooth also not working , is it u2700?
that the chip controll bluetooth , trackpad and keyboard

 

[2informaticos]

Yes, the USB hub can be damaged.
Check its power pins too, but if diode mode on data lines no good, must be changed.