820-3023 charge sometimes

Hi,

Board is not water damage, inspecting board under microscope didn't find anything unusual.

Board only recognize charger sometimes, I´m trying 2 different 60W original chargers and a power supply with a original cable.

I have to connect between 10 to 20 times the magsafe to get recognize, once recognize half the time charges normal and don't loose connection, other half of the times, the fan spins for 5 seconds and then shuts down.

When is not recognize I, in PPDCIN have 2.3V and PPBUS_G3H has only 0.8V.

What should I test next?
 

2informaticos

Administrator
Staff member
Possibly input leakage issue.
But lab PSU should bypass it.

Did you try known good LIO board?
Tested disconnecting LIO data flex?
 
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