Technical Support Apple A1398

[Tara Laptops]

I need technical support pls. Motherboard p/n 820-00426-A
Machine gets On. After 10 sec it shut down. 3.3v always voltage is present in off mode. Bios PP3V3_SUS is missing. Even PM_RSMRST_L is missing.
Pls tell me PM_RSMRST_L is generated first or PM_SLP_SUS_L . confusion.

 

[Hosein Asadolahi]

I need technical support pls. Motherboard p/n 820-00426-A
Machine gets On. After 10 sec it shut down. 3.3v always voltage is present in off mode. Bios PP3V3_SUS is missing. Even PM_RSMRST_L is missing.
Pls tell me PM_RSMRST_L is generated first or PM_SLP_SUS_L . confusion.

I drew this for you :

 

[Tara Laptops]

Thanks Hosein. Very very helpful information. I am in search of such information. Thanks. I will try

 

[Tara Laptops]

Hosein do you have such more flow charts for other signals. If you have pls share

 

[Tara Laptops]

Hosein problem was with +5v_S0 supply. A capacitor was low resistance.