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820 4924 taking 51 mA and not getting into S4 state
I've snipped this magsafe 2 which came in the box of an 2013 A1466. Now hooking it to a fully functioning an unsnipped 60W magsafe 2 and connecting the battery the device does not boot but has S0 rails. No chime no keyboard backlight or display backlight or display. PP5V_S0 = 5.13V PP3V3_S0 =...- Roan
- Post #5
- Forum: Macbook Logic Board Repair Questions
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820 4924 taking 51 mA and not getting into S4 state
Thanks alot! The values I found are: PM_BATLOW_L = 37mV PM_DSW_PWRGD = 3.34V PCH_DSWVRMEN = 2.5V PM_RSMRST_L = 3.0V PM_PWRBTN_L = 3.34V When triggering SMC_ONOFF_L PM_PWRBTN_L goes to 0.36V Looked up SMC bypass mode, suddenly it's alive! Does this mean that it looks fixable after all?- Roan
- Post #3
- Forum: Macbook Logic Board Repair Questions
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820 4924 taking 51 mA and not getting into S4 state
Sadly I dont have that much troubleshooting experience yet. Have rebuilt some backlight circuits and repaired the common iPhone errors so that's something. The board Im working on now 820 4924 stopped working because of liquid damage and didn't turn on but with a light on the charger. Got the...- Roan
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- Replies: 37
- Forum: Macbook Logic Board Repair Questions