MacBook Pro A1502 // 820 - 4924 - A // Orange light not powering on

[vshilov]

Hey everyone, this is a strange one, there is no water damage no corrosion.


I followed the first few steps of the video below:

Getting the following readings:

PP Bus : 12.56 volts

not sure what to measure next, so stuck now

 

[2informaticos]

Start checking 3V3_S5/SUS.
Post PM_BATLOW_L, SMC_ADAPTER_EN, SMC_PM_G2_EN and all PCH's RTC signals.
Be sure to use 60/85W original Magsafe 2 charger.

 

[vshilov]

Using original 85 watt charger!

In the video above, what are the next two items being measured?

 

[vshilov]

Perfect thank you!