For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.
I have a liquid damaged board. 5v on usb meter U2800 and U3100 were both bad so replaced them. I now have 20v 35ma. I only have 1v on PPBUS_G3H diode reading .395.
R7021/22 were both bad so replaced .
Q7030 pin1 = 20v, pin