this lboard had corrosion on the audio amp area. after a cleaning it still has no ppbus_aon. if f5200/f5201 is removed then 12v is on the pin1 of those fuses (ppvbat_aon_chgr_reg). the amp meter connected to the charger reads 20v 0.000a. I haven't found any short to ground
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HELLO EVERYONE
I´have MacBook pro 13 A1708 motherboard modele 820-00840 first come with short on ppbus g3h i found a shorted mosfet and replaced with a new one the voltage is come back 13V but in coil l7030 no 13V I need a help to diagnostic and fix this mac
thank you -
I just got one MacBook Pro a2442 (M1 Pro) there was small liquid damage.
Board starts normally at 5V and then jumps to 20V but after few seconds USB-C meter restarts (on every port) - sometime 1 or 2 times it's start and doesn't restart.
There was hotspot on U5200 (but it looks like on PIN1 (CHGR_GATE_Q4) but I've check in diode mode and it was ok reading (but I've replaced it anyway but still the same ...
There was corrosion around UR660, UR630, UR600 but I've checked all CAPS and it looks ok ...
When I connect USB-C meter and check with...