820-02016 5v PPBUS_AON 1v

[yair37]

5V 0A - no short found no water damage.
PPBUS_AON 1v
take out F5200 - C5254 still 0.5-1v
replace U5200 still the same..

 

[2informaticos]

Keep F5200 removed.
Post U5200 basic voltages: P_IN, AUX_DET, SMC_RST_IN, VDD/P, EN_MVR, AUX_OK, A/BMON.

Also check resistance (ohm scale) over C5220/60.

 

[yair37]

P_IN (PPDCIN_AON_CHGR_R) 0v
AUX_DET (CHGR_AUX_DET) 0v
SMC_RST_IN (CHGR_RST_IN) 0v
VDD/P (PP1V8_S2) 0v
EN_MVR (CHGR_EN_MVR) 0v
AUX_OK (CHGR_AUX_OK) 0v-0.1v pulsing
A/BMON 0v

 

[2informaticos]

Check FF200/1...

 

[yair37]

FF200/1 5v stable

 

[2informaticos]

"P_IN (PPDCIN_AON_CHGR_R) 0v
....................
FF200/1 5v"
Check R5220 and its traces.

 

[yair37]

replace r5220

P_IN (PPDCIN_AON_CHGR_R) 5v
AUX_DET (CHGR_AUX_DET) 1.25v
SMC_RST_IN (CHGR_RST_IN) 0v
VDD/P (PP1V8_S2) 0.5v and drain
EN_MVR (CHGR_EN_MVR) 5v
AUX_OK (CHGR_AUX_OK) 0.9v
A/BMON 0v

CHRG_CSO_FILT_P 12.3v

 

[yair37]

and ppbus now is 12v but chrager is 5v 0.2A and then 0A

 

[2informaticos]

PPBUS_AON 12V stable now?
What about 3V8_AON?

 

[yair37]

3V8_AON 3.8V stable
PPBUS_AON 12V to 9v every 10 sec.

 

[2informaticos]

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