Re: Macbook Air 13ich A1466 trackpad 923-0438 and keyboard schematic request



I'm 99% sure it's not the keyboard and all other keys work in 2 keyboards I've connected to it, and power key fails in both. It's also not the cable from the touchpad to the motherboard because if I manually short the data line responsible for the power button signal to ground (thus activating it as it's active low), the device powers on/off, and this remains true at both sides of the cable.

It's a shame there are no schematics, it would be such a simple fix if I knew where...

Hello!
I've used this forum a lot in the past and always found the information I needed to keep on learning and solving the problems. This time, though, I haven't been able to find what I needed so I wonder if any of you could share it.

I have a 2017 Macbook air A1466 that won't turn on.
I can turn in on with the power pads, and even shorting the SMC_ONOFF_L
line to ground in both sides of the flex cable (mother board and trackpad board), I also changed the whole keyboard assembly to a new one which works well.

All this leads me to think that my problem...

Re: New Members - please post your introductions here

Hi guys!
I'm an electronics enthusiast, and I decided to join the forum because its posts helped me a lot in the past repairing some devices I had lying around. I hope to keep on learning from you!