Hello guys, i need your help fellow brothers
Im diagnosing a Lenovo G80-50 laptop
ACLU3/ACLU4
Rev : 1.0
when you press the power button, the LED power light turns On and quickly shuts down, no display, fan spins a sec and stop. I haven’t seen any short so far.
PU908 (CPU POWER CORE CHIP) is getting hot the moment you press the power button, the laptop turns off very fast, i changed PU908, still im getting same problem, on output side of the 2 cpu power supply coil i get 1.6v and then goes away as soon as the laptop turns off, still the new chip get hot as well and the pc quickly shuts down
The funny thing is, when i remove both mosfets that generates power for the CPU, the laptop doesn’t switch off at all, but when i place them back it switch off very fast
Kindly advise guys
Im diagnosing a Lenovo G80-50 laptop
ACLU3/ACLU4
Rev : 1.0
when you press the power button, the LED power light turns On and quickly shuts down, no display, fan spins a sec and stop. I haven’t seen any short so far.
PU908 (CPU POWER CORE CHIP) is getting hot the moment you press the power button, the laptop turns off very fast, i changed PU908, still im getting same problem, on output side of the 2 cpu power supply coil i get 1.6v and then goes away as soon as the laptop turns off, still the new chip get hot as well and the pc quickly shuts down
The funny thing is, when i remove both mosfets that generates power for the CPU, the laptop doesn’t switch off at all, but when i place them back it switch off very fast
Kindly advise guys
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