I've got an issue with this logic board and the lack of a boardview makes it harder to diagnose. The ISL chip (U7100) gets warm I've got good readings at both PP3V42_G3H and PPBUS_G3H. Some concerns I have is I have no readings for SMC_BC_ACOK_VCC and my reading for SMC_BC_ACOK for both pin 1/2 is showing around 1.8V. Also my ADAPTER_SENSE voltage is showing at 0.7V. My U700 only gives voltage at adapter_sense and U7001 at pin 1/2 and pin 5 (PP3V42_G3H).
I've looked at every possible components linked to these for shorts but to no avail. I was hoping if someone can shine some light to my situation or give me some general guidance in how to diagnose macbooks.
Also I am using the 85W charger for this board so my readings should be accurate.
Thank you,
Sam
I've looked at every possible components linked to these for shorts but to no avail. I was hoping if someone can shine some light to my situation or give me some general guidance in how to diagnose macbooks.
Also I am using the 85W charger for this board so my readings should be accurate.
Thank you,
Sam