XPS 15 9550 XPS15 9550 AAM00 LA-C361P Schematics aam00 lac361p r10-20150806_KS.pdf aam00 lsc361p r10_20150718_KS.pdf aam00 lsc362p r10-0724_KS.pdf
Could be this one what are we looking for? https://notebookschematics.com/2017/09/dell-xps-15-9550-schematic-compal-aam00-la-c361p-schematic-2/