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DELL XPS L502X notebook will not be powered on and plugged in without triggering repair
It is found that the 83-pin of EC is ALW_ON, the measured resistance is normal, and there is no voltage output at this pin after power-on, which is the problem of EC. Measuring pin, there is already a voltage of 3.3V Short-circuit the switch, and the current reaches about 1.5A Install the machine, plug it in, start it up, and turn it on perfectly. Troubleshooting, the maintenance is over.
