Recent content by SargFowler

OK, with L8060 removed, 43K on pin1, 1R on pin2. PP3v3_S5 still jumping. I just have the board on the bench, nothing else connected. R7662 removed, no 3v3 S5. R7661 removed, PP5V_S4 still jumping up to 5v (?!) I'm going to try injecting in to each S5 rail to make sure they're OK.

I've temporarily removed Q8060 which is just before L8060 and the short was still there. I'm going to check the PP5V_S4 circuit to see if there's an issue on this rail as the other side PP3V3_S5, appears OK even though the voltage is briefly there. However, I thought the board would stick in...

I've injected voltage into the PP1V_S5G rail but couldn't find anything getting remotely hot. It took 1v at 1a. I've also noticed PP1V8_S5G is also low resistance. I hope this doesn't mean the CPU is blown. I removed FET Q8060 but the short is still there on the PP1V_S5G rail Can anyone else...

Sorry, typo. It was a bypass, not a reset. The battery should still charge even without S5 state shouldn't it? Also, just discovered PP1V_S5 has a short. It's 1R. That's gotta be too low surely?

Thanks for the response guys. Tried SMC bypass, no difference. PM_SLP_S5_L shows 20mv every now and then, but otherwise 0v. Nothing on PM_SLP_S4_L - 0v. It doesn't get anywhere through the power up sequence, so there's no Vcore. There's no pulses on L7670 as there's no P5VS4_EN signal...

Struggling with this board that was very clean. The S5 rails are jumping up and down from 50% to 100%. PPBUS_G3H 13v steady Charger 20v 0.01A PP5V_S5 jumping 2.5v-5v PP3V3_S5 jumping 1.5v-3.3v PP3V3_G3H 3.4v P3V3S5_EN pulsing 0 - 3.3v PP3v3_S5 diode mode around 18K. PMIC_EN_P3V3S5 pulsing...