repair macbook air a1466

[madjid911]

hi,
I have a macbook air that did not happen at all, I tested various voltage it turns out that it has no 3.3v on the whole circuit.
I would like with your help found the component that generates the 3.3.

I changed the chip u1900 but it does not come from him, I do not know where the 3.3 is created, is it me processor that generates the pp3v3? thank you

[kevingill]

You may be better doing some reading on repair of MacBooks. I can recommend Louis's guide here : https://docs.google.com/presentation...05ed3_143_1393

[SMDFlea]

hi,
I have a macbook air that did not happen at all, I tested various voltage it turns out that it has no 3.3v on the whole circuit.
I would like with your help found the component that generates the 3.3.

I changed the chip u1900 but it does not come from him, I do not know where the 3.3 is created, is it me processor that generates the pp3v3? thank you

Reminder: rules and organization of this section
https://www.badcaps.net/forum/troubl...f-this-section

If you request/offer BIOS/schematics/boardviews, please post in the appropriate subsection, and you can link to it in the troubleshooting topic.

[reformatt]

It's a 5 year old post, revived by some spammer who was advertising his repair place in UAE or somewhere (post was removed). Not sure the OP is even still around.