Chosen Solution
This laptop experienced water damage and I was able to clean it all up. The laptop works fine except there is no backlight on the screen. I have replaced the LVDS connector because a couple pins were completely fried on the old connector and there is still no backlight. There is a slight hole in the motherboard next to a few of the pins that I assume are not making connection due to the hole. Is there a way I can fix this?
Likely the trace is broken. Firstly, clean the capacitor I have pointed to in the picture, and the black diode to the right of it, using isopropyl. They are either burnt or damaged by the liquid, in which case it is worth replacing (capacitor value below, I suspect the diode just needs cleaning). 1000PF, 0603, 50V, 5% Then, measure the voltage on the capacitor where I have instructed in the picture. If it is around 25V, this is fine and you can proceed with the trace. On the LCD connector, pin 1 is ground, 2 and 5 are unconnected, so you just need to run a wire from pin 3 and 4 to the capacitor (where I have drawn an arrow in the picture). Only do this if you are seeing a high voltage on the capacitor, otherwise you will be wasting your time. Double check your pins on the connector to make sure they are making a good connection too, looks like it is slightly further forward than normal, and I can see one bent pin in the picture.
Looks as if either yes, thats your issue or your back light is dead. What you can do is look for a pin out of that connector and see if the pins near the hole are for back light. If thats the case then thats your problem and i dont believe that you can fix it.
Hello johnathan, I know its a bit late but what ever happened with your repair? I’m facing a backlight issue with my imac 2015 5k. Thanks!
