Asus K53S no backlight after replacing the power jack!
Hello everyone, I have an Asus k53s laptop that I replaced the power jack of the motherboard. The jack had a bad contact with the middle pin of the jack and it was working only if you kept pressure on the charger cable but no screen backlight.
I replaced the motherboard jack with a new one but the backlight of the display is not working at all. I searched online and I discovered that is a fuse on the motherboard that is broken or faulty. I searched all over the motherboard for a faulty electronic part but I could not see any. (I checked visual and by measuring them). I do not have the motherboard scheme to follow the backlight path so I checked the parts randomly. The mosfet is giving 3.30 volts and getting out 3.30volts. Everything should be fine there.
Please let me know if anyone had this issue and if anyone knows where is the backlight fuse located or what is the path that needs to be followed to discover the broken part on the motherboard so I can have the backlight on again.
I cannot talk about any inverter because it is a LED screen. The problem is 100% on the motherboard.
PS: I think that this problem was caused because the charger was not making contact well with the power jack and the backlight got on and off randomly and because the laptop had the battery in it the laptop was still working but the backlight was jiggling on the screen until it got off at all.
Is this a good question?