logic board testing

[paffy]

I have a a1278 water damaged board, which doesn't turn on. Supposedly, there was a buzzing sound and the computer died.

It has good G3Hot power from both power supply and battery. The SMC is slightly warm with battery and/or PS connected. Looking at some macbook schematic, there's ALL_SYS_PWRGD signal going to pin 12 of the SMC. I'd like to measure it.

Is there a documentation of test points on the logic board I could use ?

 

[paffy]

bump...

 

[thundersteele]

I doubt there are many apple repair guys here. Good luck

 

[Katotech]

Try this thread: https://forums.macrumors.com/threads/1122338/

 

[jebarne]

Macbook Unibody

moved to proper thread