Hi. I have a problem here. I have macbook pro a1279 which is not turning on. I got this laptop with no display and fan spinning very fast. I reballed gpu but still this same so i ordered new chipset and put it on but did't help at all. So i done reflow cpu because i found short on few capacitors on PPVCORE_S0_CPU. After that i lost green light on charger. No voltage on pin number 4 and 5 on keyboard connector and only 5.05v on battery connector. I removed u7000, q7035 and q7036 and still have short. What can i do to bring this machine back to life? Please help. I have most of spare parts for repair boards but am not very good at it. Only doing this few months. Anybody can help please?
-- 6 marca 2016, 02:51 --
Voltage i just checked again on battery connector j6950:
pin 1,2,3,4,5 : 9.9v
pin 6 and 7 : 0.2v
Voltage checked on U6900:
pin 1 : 0v
pin 4 : 0v
pin 5 : 0,7v
Voltage checked on u6901:
pin 1,2 : 0,2v
pin 5 : 0,2v
-- 6 marca 2016, 03:12 --
I replaced u7000 and i have voltage on battery connector j6950:
pin 1,2,3,4,5 : 9,9v
pin number 6,7 : 0,2v
-- 6 marca 2016, 02:51 --
Voltage i just checked again on battery connector j6950:
pin 1,2,3,4,5 : 9.9v
pin 6 and 7 : 0.2v
Voltage checked on U6900:
pin 1 : 0v
pin 4 : 0v
pin 5 : 0,7v
Voltage checked on u6901:
pin 1,2 : 0,2v
pin 5 : 0,2v
-- 6 marca 2016, 03:12 --
I replaced u7000 and i have voltage on battery connector j6950:
pin 1,2,3,4,5 : 9,9v
pin number 6,7 : 0,2v
