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820-00164 charging  

 

Do is
iExpert Lithuania
(@mobilbajer)
Active Tech Registered
Joined:6 months  ago
Posts: 14
30/01/2018 00:55  

Hello everybody, I have slightly water damaged MacBook Air 820-00164, all pub is cleaned and all works, despite charging.

I have changed: ISL6259HRTZ and also same resistors near it.

it works from battery, for example 77%, but when charger attached, it immediately shows 100% and charging symbol, really isn't charging. Also there is no light on charger. also Mac works only from charger.

charging/audio board is good, flex between audio board and main board is also good.

I need advice, how to find the cause? what signal is responsible fo battery % control?


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iTesla
iOracle Moldova
(@idea)
SUPPORT Admin
Joined:5 years  ago
Posts: 7211
30/01/2018 18:47  

Hi

Not know much but based on schematic this 2 lines communicate with battery.

SMBUS_SMC_5_G3_SCL
SMBUS_SMC_5_G3_SDA

You can check the available schematics 820-00163 and 820-00165 files.
There is a 2 in 1 diode connected to this lines i would test him but problem is schematic in one is No Stuff in other is available look if yours have it but also 2 pull up resistors are available to this 2 lines test them.

Do not wait that i feed you with the tea spoon, the site is full of info have patience searching and reading because this is the great way to learn from others.


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