820-00138-A green light no fan spin

Sr. Robot

Member
Hi, got an 820-00138-A that sometimes turns on and sometimes doesn't.

When it doesn't these are the voltages:


PPBUS_G3H: 12.54v

PP3V42_G3H: 3.4v

PP5V_S5: 5v

PP5V_S4: 0v

PP3V3_S5: 3.3v

PP3V3_S4: 0v

PP3V3_SUS: 3.3v

PP1V05_SUS: 1.05v
 

2informaticos

Administrator
Staff member
Are you using original 85W Magsafe 2 charger?

Trigger SMC_ONOFF_L and check for drop pulse at PM_PWRBTN_L.
If catch it, check for pulse PM_SLP_S4_L (at same time).
 
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