Re: A1278 820-2879. How is PPV42_G3H generated without charger?
Perfect, thank you!...
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A1278 820-2879. How is PPV42_G3H generated without charger?
Hi, I am a beginner, can you help me to understand how is PPV42_G3H generated by the battery without when the charger is not inserted in this particular model? I can't see any direct connection between the battery and U6990 (which generates PPV42_G3H). From the schematic page "Power System Architecture" it would seem that there is continuity between PPVBAT_G3H_CONN and Q7085 but from the schematics and boardview there isn't. Also, from the page "Reverse-Current Protection" it says: "This node is powered through body diodes DCIN through Q7080, PBUS through Q7085 and Q7055"....
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Hi guys, I'm from Italy. I've studied electronics and now I'm learning to fix computers. Still got a lot to learn. This place looks good!
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