Macbook A1707 short on PPBUS - nothing gets hot

[mon2]

Re: Macbook A1707 short on PPBUS - nothing gets hot

Adding to the last list...what is the voltage for PP3V3_G3H ?

[JM1010]

Re: Macbook A1707 short on PPBUS - nothing gets hot

Hi Mon, it is pin 1. Actually I was confused about the creation of that rail between U7650 and the U7800 PMIC. The PP5VS4 pad on the PMIC bottom row fifth from left side was corroded. I started scraping the corrosion and may have hit some ground. That's quite technical but do you think ground is the 1st layer and I can scape some more to create space around the via? PP5VS4 seems to be going everywhere from that pad so I can't just run a wire, need to figure out how to repair and connect to the pad.. I think if I can get through this hurdle there is hope for the remaining challenges.

[JM1010]

Re: Macbook A1707 short on PPBUS - nothing gets hot

Regarding PP3V3_G3H, can't check right now as waiting for new PMIC but I recall it was fine as the CD3215s were able to negotiate 20V at the charger.

[JM1010]

Re: Macbook A1707 short on PPBUS - nothing gets hot

Hi Mon, as stated previously it's on pin 1 of L7600. Also I need to sort out the situation with pad 5 of the pmic. Do you have any advice? thanks again.