i have here a1278 board 820-3115-b 2 units same problem then same repair i replace 980 YFC chip beause its a shorted 980 YFC chip also the other one problem is when i press the 980 YFC chip it power on and display and i dont have stencil for this chip so i order online for the parts then after i replaced the 980 YFC when i try to power ON it only chimes and fan spin fast then nothing happen no display
i hope someone has experience this kind of repair so that my problem be solved
i hope someone has experience this kind of repair so that my problem be solved