820-02098-A Battery doesn't charge

kashitozu

Member
I have a MacBook Pro (A2442) which has been exposed to water and is therefore oxidised.

The MacBook lights up with the battery but when I plug in the charger it doesn't charge but takes 19V 0.000A.

So it doesn't charge the battery.

When I work on the motherboard without the battery but I plug in the charger it stays at 5V with consumption 0.222A and then it goes down to 5V and 0.035A.

1- Do you have a schematic and boardview for the motherboard because I saw in your videos you use your own software.

2-Do you have any idea where this might come from?

3-The area where I have the most oxidation is U6040, U6041 and the resistor R6040 and R6043 but on the 2 resistors I have 5V in but 0V out.
 

2informaticos

Administrator
Staff member
R6040 is 0 ohm resistor; it MUST have 3.8V on both pins.
It is burnt; if no short to ground on pin 2, replace it and test.

R6043 is 2 Mohm resistor; can't be properly checked onboard.

Your problem may be C/U6040; which can damage R6040.
 
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