So my Lenovo Y530 power button (and power LED) only works with battery. If I only plug in the AC, the power doesn't flash and nothing happens if press it.
20V present on the main power rail with the AC plugged in.
Also worth mentioning:
If I inject 19V/1A on the + pin of the AC IN, nothing happens current draw is 0.016A V is 19V. But If Inject the same power trough a CAP after the first MOSFETS the board starts up (power LED flashing) and the current draw is 480mA.
20V present on the main power rail with the AC plugged in.
Also worth mentioning:
If I inject 19V/1A on the + pin of the AC IN, nothing happens current draw is 0.016A V is 19V. But If Inject the same power trough a CAP after the first MOSFETS the board starts up (power LED flashing) and the current draw is 480mA.
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