A2780 - 820-02652-A - 5V up to 0,7 amp - no 20V. Stopped working suddenly

samstown

Member
Hello

Macbook stop working all of suden. No light on Magsafe, no 20V so I took board out. No visible damage. I am using schematic 820-02100, I don't know if there is a better one available for 820-02652, nothing on badcaps.

3v8_AON is ok, I have 3.8V
PPBUS_AON between 9.5 and 11.5 V
USB-C only 5V up to 0.65. No 20V

There's two big coil on near batery connector, diode mode .450

I found 4 caps sorted but schematic doesn't match.

Thanks
Sam
 

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Last edited:

samstown

Member
Got the right brdview, CT054 was the culprit. I remove it, Mac is working now. In such case, Is it necessary to replace the cap ?
 

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  • ut000.JPG
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  • PPVOUT.JPG
    PPVOUT.JPG
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  • ct054.JPG
    ct054.JPG
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