it-solve
Member
I got this A2159 820-01598, which have looping 5V 0.3A on the charger.
U3200 shows a pulsing heat signature on both charging ports. While PP3V3_UPC_XB_LDO is shorting. PP3V3_UPC_XA_LDO shows 0.5Vdc.
I don't see any liquid damage on the board itself, only the bottom of the battery sensors flipped red.
I just got the chips today. Shall I replace U3200 first? If there is something else, I should check first to prevent shorting the replaced chip. Avoiding wasting chips, ubelievable how expensive these chips are for new macs?
I can't detect any shorts on the major coils, CDxxx fuses, or bigger filtering caps.
Thanks
U3200 shows a pulsing heat signature on both charging ports. While PP3V3_UPC_XB_LDO is shorting. PP3V3_UPC_XA_LDO shows 0.5Vdc.
I don't see any liquid damage on the board itself, only the bottom of the battery sensors flipped red.
I just got the chips today. Shall I replace U3200 first? If there is something else, I should check first to prevent shorting the replaced chip. Avoiding wasting chips, ubelievable how expensive these chips are for new macs?
I can't detect any shorts on the major coils, CDxxx fuses, or bigger filtering caps.
Thanks
Attachments
-
IT-Solve_21-06-11_09-30-01.jpg298.5 KB · Views: 5
-
2021-06-11 09-24-14.JPG386.4 KB · Views: 5
-
2021-06-11 09-23-05.JPG382.3 KB · Views: 5
-
2021-06-11 09-22-54.JPG375 KB · Views: 4
-
2021-06-11 09-22-48.JPG374.9 KB · Views: 4
-
2021-06-11 09-21-07.JPG366.6 KB · Views: 4
-
2021-06-11 09-20-19.JPG375.3 KB · Views: 4