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820-00138 macbook pro no power
- Thread starter mogly
- Start date
There must be some voltages on the board; please post.
Exact PPBUS_G3H voltage?
Test w/and w/o battery connected.
Do you get 3V3_S5/SUS?
Test w/and w/o battery connected.
Do you get 3V3_S5/SUS?
Diode mode to ground at PPBUS_G3H?
Don't forget to remove charger and battery; also allow 10-15s before checking in diode mode.
Don't forget to remove charger and battery; also allow 10-15s before checking in diode mode.
I asked about diode mode and I don't know what you've really replied.
Read about checking in diode mode here:
boards.rossmanngroup.com
Still no reply about 3V3_S5 voltage.
BTW, do not write end "V" after diode mode reading!
Read about checking in diode mode here:
HOW TO collection
I hope this "How to" collection will help our members. I will possibly modify this post in time, if updates available. Trigger SMC_ONOFF_L (PMU_ONOFF_L): It reffers to simulate power button function, when the keyboard is not connected. We need to do this when we work with the board...
boards.rossmanngroup.com
Still no reply about 3V3_S5 voltage.
BTW, do not write end "V" after diode mode reading!
If you get the same diode mode reading at L7310/20/30, lift the coils one side (one by one) and check when (if) short disappears from PPBUS_G3H.