Bad tristar chip (U1700)?
PP3V0_TRISTAR & PP1V8_SDRAM are having 0 volts and no short to ground. Does this mean the tristar chip is is bad? I already checked the main rails off course. They don't have a short but the voltage was too low (0,5 volts on VCC_MAIN)
Esta é uma boa pergunta?
2 comentários
@ivar3000 did you ever get it figured out?
por Oscar C
@techwarrior Yep. Had to do with a short on one of the lines of the pmic chip (ldo10 & ldo12) which apparently causes it to not be able to charge the phone or do anything (I think that is because the pmic chip supply's power to chips like tristar). I'm pretty sure it's a chip which is connected to both of these lines but i'm not sure if it's the cpu or the pmic.
por Ivar