820-3332 = doesn't start, missing PM_BATLOW_L

[djdblaster]

Board is clean, no water damage.

PPBUS - 12.6V
PP3V42 - 3.42V
PP5V_S5 - 5V
PP3V3_S5 - 3.3V

I check the System Power Management page for missing signals.

Present:
SMC_ADAPTER_EN - 3.3V
PCH_DSWVRMEN - 3.3V
PM_DSW_PWRGD - 3.3V
S5_PWRGD - 3.4V

Missing:
PM_BATLOW_L

 

[2informaticos]

Original 85W charger for sure?

 

[djdblaster]

Original head connected to DCPS.

 

[2informaticos]

It is 85W for sure???

 

[JohnB8812]

It?s not original use a KNOWN GOOD OEM 85 watt MagSafe 2. BATLOW is often missing because of bad/incorrect charger....

 

[djdblaster]

Used 2 original 85W chargers on this one, no improvement.

 

[2informaticos]

Check SMC_BATLOW_L, PM_SLP_SUS_L, 3V3_SUS and all 4 RTC signals.
Also try to start in SMC bypass.