hello forum.
This laptop is completely turned off. Testing the motherboard in the workbench, connecting the known adapter that warms up the PU8100.
By measuring the coils I find pl8102 I find a resistance of 1.3ohm.
I replace it for security PU8100 but connect the power supply also heats this again.
I remove PQ8101 but the short circuit remains. I remove the PL8102 coil and inject a voltage of 1.2V and I get a 1.2 amp absorption. Note that warms the CPU (U0301) I do not want to inject a voltage of 3v in the coil to be safe but I think it is the cpu in short.
This laptop is completely turned off. Testing the motherboard in the workbench, connecting the known adapter that warms up the PU8100.
By measuring the coils I find pl8102 I find a resistance of 1.3ohm.
I replace it for security PU8100 but connect the power supply also heats this again.
I remove PQ8101 but the short circuit remains. I remove the PL8102 coil and inject a voltage of 1.2V and I get a 1.2 amp absorption. Note that warms the CPU (U0301) I do not want to inject a voltage of 3v in the coil to be safe but I think it is the cpu in short.