Chosen Solution
While replacing a defective HD with a new SSD I must have done something wrong (maybe hit a fuse…). The laptop still works and I can use it attached to an external display but the internal display has no more backlight (the backlit keyboard still works). The LCD is not defective because I can still see an image on it very faint when I shine a torchlight on the screen. I brought it into my local Apple shop and they want to replace the motherboard (big cost!!!) but I saw some threads on replacing the fuse ore wled driver. This requires knowledge of the motherboard and where to look for these pieces. I will not attempt to do this myself but maybe with the right information I could get a specialized shop to do the task. Any help with schemes or tip is welcome.
Erik, here is what I got with the limited information available. The fuse is a 2 AMP-32V 0402-HF SMD fuse, and something like this should work for your board. The WLED driver is a LP8543 made by TI. the datasheet is available right here. Mouser.com as well as Digikey.com should have both parts available. Hope this helps,good luck.
