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This mac had short C7131, I replaced it but with no result.
Replaced Q7130, U7100, AND Q7180.
When I removed F7140, there is no voltage on either side.
"2-16,68V
---------------
3- 6,77 V"
Do you know how a MOSFET P-channel works???
Because these readings imply to get same pin 2 voltage into pin 4.
Please check again and be sure to post accurate information.