Apple A1261 820-2262-A no power

[Pragmatiko]

Hello,
that Macbook is completly dead.
I have 3,3V on power button but when i press it the laptop wont turn on.
I tried to put to ground with twizeer pad On 3,3V but still nothing.

Could be a bios issue?

Someone have a bios dump?

Regards

[Pragmatiko]

Re: Apple A1261 820-2262-A no power

Have 3,3V on power button and also have 3,3v and 5v on L7360 and L7320.

Have flashed bios with new one but still not turn on.

Any suggestment?

[farooquepm]

Re: Apple A1261 820-2262-A no power

have 3,3v on power button and also have 3,3v and 5v on l7360 and l7320.

Have flashed bios with new one but still not turn on.

Any suggestment?

sir you need check 5.v and 3.v regulater mosfet ans primary ic

[Pragmatiko]

Re: Apple A1261 820-2262-A no power

sir you need check 5.v and 3.v regulater mosfet ans primary ic

Hello, 5 and 3 volt are ok.

[Pragmatiko]

Re: Apple A1261 820-2262-A no power

someone can attach board view?

[dfbaaaa]

Re: Apple A1261 820-2262-A no power

someone can attach board view?

There you go!

[ktmmotocross]

Re: Apple A1261 820-2262-A no power

did u have 3.425V from "G3HOT"? U7800



see this guy he is great in macbooks
https://www.youtube.com/user/rossmanngroup

[ohuhohuhoh]

Re: Apple A1261 820-2262-A no power

Thanks OP
I have repair the Graphic Card and now there is no wifi and so sound. The boardview and schematic is very useful for me to check the PPVIN for those two IO

[tipaaetaa]

Re: Apple A1261 820-2262-A no power

Thank! Now I signed up for this guy, he is really cool.

[Geddy]

Re: Apple A1261 820-2262-A no power

Thanx