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No image. Solid black. 5v on the bklight i know these things have low heat but not fan spin either and Caps lock doesn't light up

put on ultrasonic and now i hv light on mouse

could it be bios?

No it doesnt

ok so i injected voltage to that pin and other connected components. nothing getting hot removed l7520 and short gone. i thought it was the coil. i was obviously wrong p5vs3_vsw had the short rail removed q7520 and short gone now replaced that, and u7501 now getting 3.3v constant and...

pin 2 on u7501 is short to ground removed and still short

red prob on ground 0.123 in diode 0.6k in regular resistance

Liquid Damage Macbook retina 2015 green light no power ultrasonic cleaned and made sure it was dry plugged it in and while measuring smoke came out of the board q7560 had a hole in it replaced it with 2013 board (slightly different part number) anyways same thing just the light...

i did that. all continuity is present. ill check out another trackpad and cable tomorrow and then ill go from there. thx

liquid damage macbook air no power. p5v_s4rs3_vfb1_r had a broken trace. jumped it and turns on now but trackpad and mouse dont work i can do smc reset but just option alone doesnt work J4800 Pin 10: 3.32V Pin 14: 5.10V Pin 19: 3.40V i dont have an extra trackpad and k/b to try. i doubt...

q7130 was the issue. replaced and it works thanks

Yes. It does

No Title I changed a new one. Same thing. All connections looks fine. Heres a before and after of the area. After installing the chip again. I know the connections is what's important. They all look fine.

16.8v Is the voltage

it wentt lower 0.4v

PPBUS_G3H with charger only -3.73v (that's low? 17/18 4ohm and 27/28 20ohm (this seems low)

Liquid Damage Macbook Pro Originally No green light no power... dead U3210 was short. removed it and replaced it U7090 had broken trace. replaced and jumped wire U7100 had broken trace too. jumped wire and replaced Now i get green light but doesnt turn on. plug in with battery and it turns...

yes i understand now how this works. ill check it out tomorrow morning. thats for the step by step. and thanks duke i really need to come see you for private tutoring before my 23rd birthday...

O. Ok. 20 ohm and 115 ohm Let me know if that makes more sense Thanks

no power. red probe on ground and black on pin1 of each c7020: 0.5 c7050 0.06