Check voltages on pins 9, 22, 67, 19, 90, 127 on U20, adaptor plugged in before pressing power button.
Check voltages on pins 101, 99, 98, 95, 6, 16 on U20 after pressing power button.
Hello guys, I have the similar problem with my CQ 71, All voltages comming to KB3926 seem ok.
Pins 9, 22, 33, 96, 111, 126, 67 = 3.3V
Pins 11, 25, 35, 69, 94, 113 = GND
Charger voltages seem ok
When i press power button the NBSWON on KB3926 goes to 0V, that is ok, but the DNBSWON connecting north bridge stays high (3.4V) all the time, doesn't go low.
Should i replace KB3926?
For how long DNBSWON goes low, is it measurable with multimeter because i dont have osciloscope at my disposal?
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