MacBook Pro A1706 Not turning on, PPBUS G3H short repair

Problem description
Repair of a common short on PPBUS_G3H on an A1706 MacBook Pro

Symptoms

 * sub 20 ohms on PPBUS_G3H
 * Not turning on

Solution
Inject 1 V (increase if no reaction), watch for hot spots with thermal camera. Usually it's a bad tantalum capacitor. Measure PPBUS_G3H to Vcore coils (coils around CPU/GPU). If those measure under 1 Ω (0.3–0.8Ω) then you most likely have a direct 12 V short to CPU/GPU. On this board this situation is always a no-fix.

Example video: No Power — A1706 2016 4xTBT3 TB 13" MacBook Pro 820-00239


 * 0 V — PPBUS_G3HOT
 * Inject 1 V into PPBUS_G3HOT rail.
 * U7600 Dual MOSFET gets hot. Part number CSD58879Q3D.
 * Visual inspection of shorted component shows solder ball popping out the side of component. C7601 is also damaged.
 * Removed C7601, short still persists.
 * Removed U7600, short gone.
 * As of April 29, 2018 no donors available. Board not fixed.