2 points
Really cheap appliances that are still entirely electromechanical might come with complete schematics, but I’ve yet to encounter an electronic one that does (where “complete” means “including the details of the PCB, not just treating it as a black-box component”).
3 points
You’ll never find a schematic of the PCB because the manufacturer not only treats it as a black box, but it will also be incessantly revised mid-production run by their OEM’s to cut costs every time a component comes out that’s 2 cents cheaper.
2 points