Hello Everybody,

I have an a1342 macbook unibody white. It's work fine, but it doesn't wake up from the sleep mode. It can go to sleep mode (the hall sensor detects when the lid is closed), but it doesn't wake up. I replaced the hall sensor board on the logic board and I checked the lid sensor line, but everything is ok. I tried the SMC and PVRAM reset, but these aren't usefull. The number of logic board is 820-2883-A.
Anyone has idea?

Thank you!

Bence

Could anybody help me to solve this problem?

Thank you!

chane the io controller

It is controled by SMC. Do you think it workes faulty?

I replaced the SMC yesterday, but the mac isn't repaired by the replace. Is this a software problem?(for eg. EFI...)

I found the faulty of the logic board. This is an amplifier IC, which drives the loud speaker. It was short-circuited and it didn't allow to wake up the macbook. I replaced it today since then it has worked fine.

Thanks for the answares!