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I've solve the issue with the Voltage drop. It was C7030 the stupid tantalum cap. I was removing and replacing the Q7080 and Q7085 after I replace them I've noticed that the voltage is ok but slowly goes down, and I start thinking why the voltage is goin down. And it click in my head because the...
I have it plugged on charger only, no battery. I replaced Q7085 ONLY because the voltage on in and out pins on Q7080 was ok. The voltage on Q7085 on pins 1 2 3 is 16.1V but on out is 1.4V. And DCIN pin Pin 2 of U7000 is 16.2 V, that connects to R7003
820- 2849 A Have green Light but PPDCIN_G3H_INRUSH is 1.4V on pins 5,6,7,8 on Q7085. The funny thing is when I plug the charger and check voltage on the pins 5,6,7,8 of Q7085 the voltage is 12.6 v and its start to drop in 30sec to 1.4 V. And on Q7080 voltage is good on all pins. I've checked...
I have 12 inch MacBook A1543 Is not powering on. I started measuring the power rails and I've noticed that I'm missing PP5V1_S4SW. Also U7100 is heating up as hell, and the other strange thing is on pin 56 of U7100 the PPVIN_G3H_P3V3G3H Is around 20V and according to the schematics should be...
i can't do pram reset but if i press the option then gives me an option to choose the boot device and if i try to connect to wifi i can actually type. So the keyboard working when i have the boot options. ANy ideas