820-03285 no keyboard no trackpad

[bartech]

water damage near cc830 and burned hole at that point in pp3v8_aon, i repair hole and change cc830, macbook start working but no trackpad and keyboard.
i check connections of jt400 and all is ok. icheck whit new tracpad and the same

 

[2informaticos]

All the chips from page 54 have the correct I/O voltages?

 

[bartech]

uc380 1- 0v
3-1,3v
4-0,85v
uc860 all 0v
uc840 1,2-1,66v
3-5,18v
5-5,18v
6-5,18v
7,8-0v
uc820 1,2 - 0v
3-1,8v
4-1,8v
8-0v
uc850 1-0v
2-1,79v
3,4,5-13,29v
6,7-0v
uc870 1,2,4,5-1,8v

 

[2informaticos]

"uc380 1- 0v
3-1,3v
4-0,85v"
If you meant UC830, there you have problems.
Missing input voltage (3V8_AON) and enable signal.

 

[bartech]

i jump wire cc830 to nearest pp3v8_aon lt203 and now i get trackpad and keyboard working . thx a lot !

 

[bartech]

now the problem is that the power button dont work or its switched on all time because some times it get to chose options or start from disk. now i have support.apple on screen and power button dont work , cant switch off

 

[2informaticos]

Check PMU_ONOFF_L voltage, w/ and w/o keyboard connected.
TouchID is embedded into keyboard.

 

[bartech]

pmu is 0v whit and whitout keyboard

 

[2informaticos]

That's bad; what about diode mode?