Tag HP TPN-q194

The power-on light of HP TPN-Q194 notebook turns off when it is on. At first glance, it is turned on by the 83rd 83pin of ec. Run the line according to this idea.

Take over a HP TPN-q194 fault machine, which is in good appearance. First of all, the HP machine is recommended to be repaired with the original adapter, and there will be some inexplicable failures with the adapter.   [maintenance process]