No chime, No video
This macbook air would not turn on at all, i noticed the water damaged on r7416 which connects to u7400 (1.2V for the RAM), i resoldered the test point, now turns on, 1.2V is ok, all the other main voltages are fine, 8.6V, 5, 3.3V, the fan would start to spin fast after a min which is normal, the trackpad is not connected, there is green light on charger, i can do the SMC reset, but of course not the PRAM reset cause there is no chime, no video, no backlight. I dont see water elsewhere, there is bit sticky stuff on U3510 bluetooth chip, but it not even corroded. How can i go forward?
This macbook air would not turn on at all, i noticed the water damaged on r7416 which connects to u7400 (1.2V for the RAM), i resoldered the test point, now turns on, 1.2V is ok, all the other main voltages are fine, 8.6V, 5, 3.3V, the fan would start to spin fast after a min which is normal, the trackpad is not connected, there is green light on charger, i can do the SMC reset, but of course not the PRAM reset cause there is no chime, no video, no backlight. I dont see water elsewhere, there is bit sticky stuff on U3510 bluetooth chip, but it not even corroded. How can i go forward?
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