820-00840-A Gets 20V but wont charge the Battery + Machine power on through Battery fine

[karate88]

Hi, I have a machine that has not been liquid damaged but it's been dropped since then it stopped charging. When you plug USB-C it gives 20v but on F7000 it gives only 1 Volt. If you use an external power supply and supply 12v on F7000 machines powers on fine. Also if you connect the battery and you supply 12v on F7000 it starts charging and powers on fine but it won't charge the battery.

PP3V3_G3H present fine 3.3v
D6905 : 1st Pin gets 1volt [ =PPBUS_G3H ], 2nd get 20v[ PPDCIN_G3H_CHGR ] and 3rd gets 19v [ PPVIN_G3H_P3V3G3H ]
F7000 is not burnt and tested good. If you remove F7000 it pulsing between 1volt up to 2volt all the time
U7000 has been replaced with new.
I have tested all resistors around U7000 and they have their normal values
R7020 gets 19v + Q7030 gets input 19v

could it be anything to do with SMC signals ?

 

[2informaticos]

There should be broken traces, or solders.
Do you get 20V at R7020 with original USB-C charger?
Post U7000 basic voltages; P_IN, AUX_DET, VDDA/P, MPM_DET, HPWR_EN*, A/BMON, AUX_OK, SMC_RST*.

 

[karate88]

R7020 =20v same with P_IN = 20v
TBA_AUX_DET = 4.63v
VDDA=5v
VDDP=5v
PD_TBA_MPM_DET = 0v
HPWR_EN =3.374v
CHGR_AMON=0V
CHGR_BMON=0V
AUX_OK=3.4V
SMC_RESET_R_L = 3.4V
SMC_RST_IN = 0V

Anything Else i need to check?

 

[2informaticos]

Check all R/C/Q7030/40.
Change L7030, just in case.
Remember to resolder all possible and check all traces continuity.

Dropped machine should have broken trace, or solders.