MACBOOK PRO A1502 820-4924-A WILL NOT TURN ON POSSIBLE SHORT IN PPVCC_S0_CPU
Hello friends, good morning, I'm new to repairing MacBook motherboards, and I need help with this Macbook pro.
The client brought me this macbook because it did not turn on, checking the macbook, I found a short in the PPBUS_S5_HS_COMPUTING line, I found Q7310 in a short, I did not find an equal component so I replaced it with a similar one.
The Macbook was still not turning on, checking I found PPVCC_S0_CPU shorted, these are its values:
diode: 0.002v
continuity: 0.5 ohms -- 0.4ohms
positive tip to ground and negative to the component to be measured.
According to my little knowledge, it is shorted, since if I measure resistance to ground, it gives me the same value, I have checked the board countless times and I cannot find the problem, the macbook has been in my workshop for about a month and no I can fix it, I hope you can help me.
excuse my bad wording, use google translate to translate to english.
PS: the original mosfet was SISA18dn and the one I used as a replacement is csd58858
Hello friends, good morning, I'm new to repairing MacBook motherboards, and I need help with this Macbook pro.
The client brought me this macbook because it did not turn on, checking the macbook, I found a short in the PPBUS_S5_HS_COMPUTING line, I found Q7310 in a short, I did not find an equal component so I replaced it with a similar one.
The Macbook was still not turning on, checking I found PPVCC_S0_CPU shorted, these are its values:
diode: 0.002v
continuity: 0.5 ohms -- 0.4ohms
positive tip to ground and negative to the component to be measured.
According to my little knowledge, it is shorted, since if I measure resistance to ground, it gives me the same value, I have checked the board countless times and I cannot find the problem, the macbook has been in my workshop for about a month and no I can fix it, I hope you can help me.
excuse my bad wording, use google translate to translate to english.
PS: the original mosfet was SISA18dn and the one I used as a replacement is csd58858