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820-00045 (A1534) Won't get out of S4/S5 state, no shorts, no damage
Optionally, can I bridge PP3V3_S4 and PP3V3_S5 to confirm U8000 is bad?- Fyo
- Post #4
- Forum: Macbook Logic Board Repair Questions
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820-00045 (A1534) Won't get out of S4/S5 state, no shorts, no damage
Thank you! Before I replace that chip, because it is a very small part, can I confirm by injecting external 3.3V into PP3V3_S4?- Fyo
- Post #3
- Forum: Macbook Logic Board Repair Questions
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820-00045 (A1534) Won't get out of S4/S5 state, no shorts, no damage
I'm troubleshooting this board that is in good condition, no liquids damage, no corrosion, no bad caps that I can see, nothing getting warm. Previous owner said it just powered off and would not charge. The board negotiates 20V from a PD charger. This is not a power-in failure. I don't have an...- Fyo
- Thread
- Replies: 11
- Forum: Macbook Logic Board Repair Questions