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i got nothing on u1900 only on pin 1 C1910 2.700

PP3v42 - 3.430 PPUS - 8.575 PPVRTC - 0.000 PP5v_S5 - 1.118 PP3v3_S5 - 3.297

i dont get PP5V_S4RS3 ? stuck on 0.030 amps

No nowhere ! 100mv voltage Diode mode 00.33 somwhere 600.00 somewhere 00.80 U6990 : pin 2 104mv pin 3 1v pin 4 250mv pin 5 700mv pin 6 17.45v and for diode mode where exactly to touch ? soory im new in this ,thats why this dumb questions .

I took the u7000 off ? last time it was not connected and still got the 3v42 volt ? should i check smth else ?

I accidentally touched C7016 with C7002 with the prob by measuring the voltage ! now i dont have pp3v42 ? can't find the burning cap ? replaced u6900 , u6901 still now power ?

I?m using a power supply ? Is that a problem ? Idk what watt is the head of the charger should i get a 85w head ? And before i took the U7000 the mac startup fine in bypass mode just the fans spins fast and the battery was not recognized ? What are the diagnosing steps now ?

i toke out the chip and the charger light is fine , when i put it on it get shortet ? is smth wrong with the u700 chip ? also check email .

yes im using a megasafe head cable but i idk if the head is 65w or 85w !

im not sure !! but with that it turnet ON by smc bypass ? not u f**k up the u700 just wantet to resolder now i get a short get really hot !!

i'm powering the mac with a power supply ? right now i dont have a charger !

No Sir , no liquid , 4 years ago i it just turn the screen black and leaves it in the box ,cuz i thought it is the GPU , so i tried heating a little wih a hair dryer and it turns on for a bit and than again now i want really to know whats te problem just im into learning microsoldering big...

Yes green then orange , but when i plug the charger in the mac don;t start up it self i need to hold the power button for 6 7 sec and it starts.

Hi all , i have a problem with me macbook pro retina 820-3332-a , it turns on and give sound only by holding the power button and then plug the charger in , black screen , fans spins high even low temp . charger looks good from green to orange . if it's possible to give me the steps to...