Laptop doesn’t show any signs of life

my Acer Aspire E5-573G doesn’t show any signs of life when I try to power it even with a charger plugged in. The SMD-LEDs located on the edge aren’t indicating that power is being supplied. I’ve already opened the device with my trusty iFixit-Kit to measure the voltage across the power-connector pins but that all seems to be fine (19V). The battery also was at the normal voltage at full charge. I’ve also tried removing it but this doesn’t help at all. Some voltages for certain components also seem to be correct. It don’t see any blown up SMDs or other issues.

I really hope that someone will be able to troubleshoot this problem further.