Problem:its not function,while press button.but adapter (65w) light is down while attach the laptop.if disconnect.its illuminating.thats the slightly difficult problem.observing the motherboard.the input voltage is short circuit.
solution:Attempting to discover the problem,taking inspection on input voltage track.two capacitor are damage around voltage divider section.cutting the capacitor.and insert new.the track is very clear.voltage is flowing well.laptop is working well.