820-00850 does not power with charger but work fine on battery

[huzeafa]

hello guys, have got n 820-00850 that would not power on charger but works 100% on battery . I do not seem to fully understand the 2018 model of operation , I measure 12.30V on PPBUS with charger only connected and 5V in PPDCIN, I have checked for a short to ground but no short, the only thing I could notice is 0V at CHGR_RST_IN, I don't know if that's suppose to be high like CHGR_RST_L signal . I believe when any of the CD3215s are faulty , the machine wouldn't power with the battery either, please correct me on this , as I could be wrong

 

[huzeafa]

Will do that now , and about this signal being low CHGR_RST_IN, I suppose it has nothing to do , and also if the issue was a CD3215, would it work with the charger ?

 

[huzeafa]

06.26 on diode mode to ground on 2 of the CD3215 and 06.9 on other 2 , on opposite sides , meaning when I flip the board one side I get 06.26 on both and when I flip to the other side I get 06.9.

I get 1V1 LDO voltage at all 4 CD3215s

 

[2informaticos]

Your problem should be only USB-C related, as the board works on battery alone.
That reset signal looks good, as it has no "L" on its name.

Did you try original 87W charger?

 

[huzeafa]

Yes, am using an 87W charger , is there something I can check next ?