A1466 board PM_SLP_S5_L = 0v

DavutAmana

New member
Good morning all,

I am new to the forum.
I have several 820-00165 board with the same problem :
PM_SLP_S5_L = 0v
SMC work, main power rails work

I accumulated these boards because I was running out of time to working them
What do you recommend to check first?
Thanks in advance :)
 

2informaticos

Administrator
Staff member
First of all, welcome to the forum!

ALWAYS check diode mode on all big coils, before apply power to the board.
When you have the board alone on the desk I don't understand why many people don't do that first.
Compare with working board, or your notes taken from other repaurs.
If no short, or low values, then apply power.
Do I consider you already did that, or should I ask you to check now???

You didn't post exact voltage for PPBUS_G3H even; very important information.
Do you have original Magsafe 2 charger?

Post PM_BATLOW_L, SMC_RESET_L, SMC_PM_G2_EN, SMC_ONOFF_L, PM_RSMRST_L, PM_PWRBTN_, PCH_DSWVRMEN and the 4 PCH's RTC signals.
 
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