820-02841 no led magsafe, 20v 0A

[raainxx]

Hi,
i have this board, very clean no liquid, the original battery seems dead (0V) (if connected stay at 5V).
I put a new battery on the Mac but no charge (20V 0A).
I haven't the light on the magsafe 2.
i test the usb-c with tester by Qianli, all ports seems good and no LDO in short.
I haven't PPBUS_AON if I haven't battery, is it normal?
thanks
Best regards

 

[2informaticos]

You should get PPBUS_AON (12.3V at least), with just charger alone.
Post U5200's basic voltages.

 

[raainxx]

P_IN : 0
AUX_DET: 0V
SMC_RST_IN: 0V
VDDA: 0V
VDDP: 0V
EN_MVR: 0V
AUX_OK = 0V
A/BMON = 0V , 0V
I thinks the problem is before, I use 96W power adapter apple

 

[2informaticos]

So you have problem with PPDCIN_AON; check diode mode there.

Also check FG200, FF200/1 & F5601.

 

[raainxx]

all fuse are good.
i complete my work. I have PPBUS_AON= 12,02V , when I connect the power adapter only on the JE701 (UF500), I have on the usbc Tester 5V 0,250A
the other 5V 0A

 

[2informaticos]

Impossible to understand, if you don't use correctly ". " and ",".
Please reformulate...

 

[raainxx]

sorry
all fuse are good.

When I connect the power adapter only to JE701 (UF500), I do get PPBUS_AON = 12.02 V, but not on the other two connectors JE700 and JE900. On the tester I have 5 V 0 A and PPBUS_AON at 0 V.