rob777
Member
Hey guys, just diving in to board level laptop repairs here, I purchased a dead water damaged Macbook Air and also this Retina 13in to begin my learning quest. Macbook Air was repaired after hours and hours of watching Louis's videos which I'm absolutely stoked about! Thanks Louis! But now this 820-3476 board is giving me issues. So I'm here to get some pointers hopefully..
Firstly the laptop would not power, no orange, no green lights. Dead in every aspect. Found some minor corrosion around C7050 and C7060. Replaced C7060 and cleaned the rest in the ultrasonic. Now I have orange and green lights and the fans spin so I reassembled into laptop.
Although I get the orange light and fans come on I still get no chime and nothing on the screen. After a couple mins the fan starts going extreme.
I then started measuring power rails, everything is present.
Does anyone have any suggestions on where I should start looking now? I feel like I was making progress in my learning here but have hit a pretty big wall and am stumped basically.
Going to study the way the LCD works over lunch and see if that can give me some insight otherwise any pushes in the right direction would be lovely!
Thanks
Rob
Firstly the laptop would not power, no orange, no green lights. Dead in every aspect. Found some minor corrosion around C7050 and C7060. Replaced C7060 and cleaned the rest in the ultrasonic. Now I have orange and green lights and the fans spin so I reassembled into laptop.
Although I get the orange light and fans come on I still get no chime and nothing on the screen. After a couple mins the fan starts going extreme.
I then started measuring power rails, everything is present.
Does anyone have any suggestions on where I should start looking now? I feel like I was making progress in my learning here but have hit a pretty big wall and am stumped basically.
Going to study the way the LCD works over lunch and see if that can give me some insight otherwise any pushes in the right direction would be lovely!
Thanks
Rob