a1707 5v 0.03mah

[2informaticos]

3V3_G3H must appear first.
ISL9239 needs to talk with SMC, in order to adjust PPBUS_G3H voltage.

Remove F7000/1 and check C7050 voltage.

 

[farfan14]

as i said have all LDO's so 3v3_g3h also have. ok removed F7000/1 and C7050 have 0.1v

 

[2informaticos]

Any history available?
Right side ports still cycling?

Post U7000's basic voltages: P_IN, AUX_DET, SMC_RST_IN, VDDA/P, AUX_OK, A/BMON.

Check diode mode to ground on all big coils.

 

[farfan14]

1) history (water damaged near ua900 and u1900
2) yes right side ports still cycling


P_IN ( PPDCIN_G3H) 5v
AUX_DET ( TBA_AUX_DET) 1.1V
SMC_RST_IN ( SMC_RST_L) 3.4v
VDDA/P ( TBA_VDDA and TBA_VDDP) 5V
AUX_OK (SMC_BC_ACOK) 3.4V
A/BMON (CHGR_AMON and CHGR_BMON) both are 0v diode mode 0.588

 

[farfan14]

big coils also checked and diode mode compared to another board and everythig is ok

only difference is LB700 my mother has 0.204 and another mother has 0.302

 

[2informaticos]

LB700 and L3500 should have very similar readings.
Be aware, LB700 corresponds to cycling ports!
So you have problems on that area; possibly bad CD3215 chip, or adjacent component.

 

[farfan14]

i don't understand somethings.please explain me

CC1/2 must be before ppbus or not?

if we have cd3215 problem why we don't have ppbus?

 

[farfan14]

cd3215 change already tried 2 days ago.also measured and compared pins under cd3215( diode mode )

 

[farfan14]

L3500 have 0.260

 

[farfan14]

LB700 and L3500 both have 0v

 

[2informaticos]

One of CC1/2 pins connects to VCONN from the cable; depends of cable orientation.
There is where the charger sends initial voltage, for detection.
CC1/2 problems manifest with black USB-C meter usually (no input voltage).
Isn't the case here.

You may have problems with corresponding TBT ROM (UB090), or TBT controller (UB000).

When these ports cycle, do you note pulsing PPBUS_G3H?

 

[farfan14]

no ppbus isn't pulsing at all

 

[farfan14]

TBT controllers already changed. no changes. now should i change TBT ROM also?

 

[farfan14]

SMBUS_SMC_4_G3H_SDA/SCL 3.4v

PP20V_USBC_XB_VBUS 0v

PP3V3_S5_SMC_VDDA 3.4v

SMC_USBC_INT_L 0V ( When charger connected on the left side SMC_USBC_INT_L 0V but if charger connected right side its cycling 0v to 3.3v like USBC meter)

 

[2informaticos]

Then your problem may be on left side.
SMC_USBC_INT_L should stay high.

On right side it pulses at least.

 

[farfan14]

so SMC_USBC_INT_L must be before ppbus?

 

[2informaticos]

Yeah; you already detected pulsing to 3V, WITHOUT PPBUS_G3H.
0V denotes to SMC a problem on USB-C power input.

 

[farfan14]

ok i understand that thanks but now i don't understand what to try next