820-00850 5.17V 0.00A no power

[Soji]

14 minutes ago​

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The system came in dead found a partial short on PPBUS_G3H_SPKRAMP diode mode reading is 0.0073 and U6500 is getting hot on thermal camera.
Short gone but still draws 5.17v 0.0A,PPBUS_G3H is now 1V
R7020 has 5V
PP3V3_G3H_RTC is 0V..
What should I do next

 

[2informaticos]

"PP3V3_G3H_RTC is 0V"
Must get PPBUS_G3H first; try to understand the schematic.

Diode mode to ground at PPBUS_G3H?
Checked if F7000 isn't burnt?

 

[Soji]

Diode mode to ground at PPBUS_G3H is 0.433
F7000 is okay

 

[2informaticos]

Post U7000 basic voltages...

 

[Soji]

PPDCIN_G3H_CHGR -5v
PP1v8_SLPS2R- 0.265 v
CHGR_CSO_p- 1.2v
CHGR_CSO_N -0.002v
CHGR_AUX_DET-1.2v
Resistance on all point ok

 

[2informaticos]

"CHGR_CSO_p- 1.2v
CHGR_CSO_N -0.002v"
Check R7060/61 and their traces.

 

[Soji]

Chgr_cso_R_P and chgr_cso_R_N
There's no open circuit between them and PPBUS_G3H is 1V
CSIN 5V
CSIP 0V
PBUS_PWR 5v
Aux DET 1.25

 

[2informaticos]

CSOP/N must have equal voltage; same valid for CSIP/N.
Do you really get 2 ohm over C7020/23?